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Rave.dj – an artificially intelligent mash-up machine

199 points by ozzmotik 8y ago

lysp 8y ago
Interesting mashup - https://rave.dj/ac-w-nK_8vCiFQ https://rave.dj/ac-w-nK_8vCiFQ I tested - Run DMC - It's like that vs Funky Town.
- mohn 8y ago
  Run DMC vs. Toni Basil - 'Hey Trickey' did not turn out as good as I'd hoped: https://rave.dj/KEmdgiqJTerSEg https://rave.dj/KEmdgiqJTerSEg
subsubsub 8y ago
Any blog posts on how this is working? Michael Jackson, Janet Jackson & The Wurzels... Scream Harvester: https://rave.dj/talVuJvYAn6zbA https://rave.dj/talVuJvYAn6zbA
- wc_cs 8y ago
  combine harvester intensifies
- citation_please 8y ago
  Seems to just be a beat matcher / BPM adjuster, which is interesting in itself, but quite basic features in any DAW/DJing software.
justatdotin 8y ago
that was actually heaps better than I expected.. https://rave.dj/q9LAsKpPBKVPhw https://rave.dj/q9LAsKpPBKVPhw
rcv 8y ago
Wow, it actually produced something kind of reasonable for the least reasonable input I could come up with. I present "In the Hall of the Dracula Mountain King" https://rave.dj/1jK2s4-jAt3meg https://rave.dj/1jK2s4-jAt3meg
toomanybeersies 8y ago
Ironically, this seems to really struggle to make good mixes from techno. It mashes it up a bit too much.
- johnmorrow 8y ago
  You could say that for this one as well, but its still pretty impressive https://rave.dj/sVAYFGYFUxM2nw https://rave.dj/sVAYFGYFUxM2nw
sbhn 8y ago
Cat music mashup. Guaranteed to make your cat look at you as if you’re an idiot. https://rave.dj/PKqlwGPNObCcaw https://rave.dj/PKqlwGPNObCcaw
mburst 8y ago
Seems to be pretty awesome. I tested out two instrumental bits in Hardwell - Spaceman and SHM - Greyhound and found that the algorithm had some issues with the low end clashing on mixing between the songs https://rave.dj/qP-eYlelx75GjQ https://rave.dj/qP-eYlelx75GjQ Though it leveled out after a few seconds. Would love to know more about how it works!
- m00dy 8y ago
  Definitely. I'm so curious.
paraschopra 8y ago
This is how well thought out products look like. - Really simple and intuitive start. I created my first mashup within first 2 minutes and at all times knew exactly what I was doing - Inbuilt virality. People will show off their produced mixes to their friends and on social media. - Actually solves a pain point. How many of us have tried mixing songs and gave up? This gives a sense of creativity while taking care of all the complexity. Even though I don't know how they'll monetize this, it seems a really well thought out product.
- ehsankia 8y ago
  Not only that, but the small things like mashing up the song title and album art truly make this a quality product. Here is my first try: Disclosure - Bang That + The XX - On Hold = Hold That https://rave.dj/1F1p4ZS9ipWmYA https://rave.dj/1F1p4ZS9ipWmYA
  - jgtrosh 8y ago
    Thanks, that was very enjoyable and I think it would fit right in a world-class DJ mix.
  - paraschopra 8y ago
    The mix is pretty awesome!
  - imdsm 8y ago
    I tried to give it a challenge, mixing two completely different genres of music – medieval with rap. Amazingly the medieval tune followed the beat of the rap song. https://rave.dj/h3o1s4nrg5d2sQ https://rave.dj/h3o1s4nrg5d2sQ
  - adriancooney 8y ago
    This is fantastic!
  - kart23 8y ago
    This is definitely the best one in this thread so far.
jjcm 8y ago
Pretty interesting. I used to be heavily into the mashup scene, even going so far as to make mashup.fm (another turntable/plug.dj clone). Here's some of my favorite classical mashups alongside the rave.dj version: Thomas the Tank Engine vs Biggie Smalls Original: https://www.youtube.com/watch?v=ETfiUYij5UE https://www.youtube.com/watch?v=ETfiUYij5UE Rave.dj: https://rave.dj/XUBqv8IsZPVZMQ https://rave.dj/XUBqv8IsZPVZMQ This was the easiest as it's just a vocal track laid onto a beat, but it really jumps the tracks around a ton, seemingly randomly. It at least doesn't jump mid-measure though and fits with the beat. ------------------------------------ Modest Mouth (Modest Mouse vs Smashmouth) Original: https://www.youtube.com/watch?v=wEmJH7JsKgM https://www.youtube.com/watch?v=wEmJH7JsKgM Rave.dj: https://rave.dj/gUb_lU_PrHBdKA https://rave.dj/gUb_lU_PrHBdKA The Neil C original is a classic, and really fits two songs together that don't belong near each other. Rave plays the intros in sequential order, with vocals overlapping all over. They really need a central channel filter to see if they can pop the vocals out from the instrumentals. This is really a tuesday-surprise lunchroom casserole of a mashup, with a rather abrupt ending. ------------------------------------ Korn vs Taylor Swift Original: https://soundcloud.com/user-490703809/we-are-coming-undone-korn-taylor-swift-mashup-by-isonsine https://soundcloud.com/user-490703809/we-are-coming-undone-k... Rave.dj: https://rave.dj/usdGtcmoNJeItg https://rave.dj/usdGtcmoNJeItg This one really works because of some of the more complex editing on Isosine's part. The rave one is a disaster. Feels like you're standing in between two parties that are blasting two jams, that just happened to have their drops/choruses line up. ------------------------------------ Kanye West vs The Beatles Original: http://mashup.fm/media/Hey_Jude_We_Major_More_Popular_than_Jesus_-_Kanye_West_The_Beatles-105124470.mp3 http://mashup.fm/media/Hey_Jude_We_Major_More_Popular_than_J... Rave.dj: https://rave.dj/ZcRpPLK6QZEvZA https://rave.dj/ZcRpPLK6QZEvZA This is a personal favorite, and I think it works because of how long the Hey Jude intro is. It really means you forget about Kanye completely until he jumps in. It works because of how slow of a buildup Hey Jude is. The Rave version has no nuance here. They speed up Hey Jude, up-pitching it in the process and making it sound like Raffi or some other child entertainer. They down pitch Kanye, making him seem like some gangsta thug. It really doesn't work at all. ------------------------------------ I really want this to become better, but I feel like it needs to be trained more tricks (vocal separation for one) to really be worth it. Also minor QOL improvement would be to allow you to preview tracks before you add them to the mix. Hard to find one that's a good audio only rip of a song sometimes.
wattengard 8y ago
Ok. I think I nailed the perfect one: https://rave.dj/ySGzN-0svLlPpA https://rave.dj/ySGzN-0svLlPpA
- wc_cs 8y ago
  definitely. bravo.
- sbarre 8y ago
  Wow, I have to say I'm kind of amazed this mashup was generated and not hand-crafted..
  - empath75 8y ago
    Really.. it sounds like someone just hit play on two songs at the same time to me. Beatmatching is trivial.
- cjohansson 8y ago
  Sounds really good
- linsomniac 8y ago
  I guess the audio mix is good... The video was using 90% of my processing power, what in the world was going on there?
- cookiefonster 8y ago
  This one sounds pretty good wow. But Space Jam is hard to mess up to be fair.
asdojasdosadsa 8y ago
Tried to use some generic pop songs ( https://rave.dj/BtHuRn1-lAnDEQ https://rave.dj/BtHuRn1-lAnDEQ - [madonna - hung up] & [ timbaland - the way i are ]) and result is not bad at all, a bit cacophonous in some parts, but other than that it's [the smashup] quite good!
wc_cs 8y ago
Little L x Boogie Nights https://rave.dj/G1X1uN36e977Hw https://rave.dj/G1X1uN36e977Hw
LordHeini 8y ago
It produces some quite funky technical death metal too. https://rave.dj/ULx2nBaldJ9ocw https://rave.dj/ULx2nBaldJ9ocw
- maze-le 8y ago
  This one is great! My grindcore experiment wans't too successful, but it gave me a chuckle anyway. Nasum & Napalm Death: Face the Children [0]: https://rave.dj/yjDMS4Pu0a81ZA https://rave.dj/yjDMS4Pu0a81ZA (Napalm Death: Suffer the Children vs. Nasum: The Masked Face)
deleted 8y ago
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PelCasandra 8y ago
Blondie (Rapture) and The Beastie Boys (Fight for your Right) https://rave.dj/E_SszLqaCgUrgg https://rave.dj/E_SszLqaCgUrgg
bhalley 8y ago
Awesome project! I just made https://rave.dj/0GU6N96tgPXj9Q https://rave.dj/0GU6N96tgPXj9Q and it's awesome! love being able to use a Spotify playlist. Have you considered using BunnyCDN instead of Stackpath for the CDN? It'll probably be much cheaper.
sylvinus 8y ago
As expected, French House mixes very well ;-) Daft Punk + Justice: https://rave.dj/Lpr1oWauUIIeaA https://rave.dj/Lpr1oWauUIIeaA
- xgbi 8y ago
  Tu traines sur HN toi ? :) Gui13
baxtr 8y ago
I played with it and used some generic party songs. The result is not bad. This one for example, "Hey ya! on steroids" https://rave.dj/iIeQ-Bx8mnFDWQ https://rave.dj/iIeQ-Bx8mnFDWQ
stef25 8y ago
Holy crap, Dolly Parton vs Richie Hawtin. It's much much better than expected but not quite ready for the dancefloor yet. https://rave.dj/wpsuhBh9kc5OZA https://rave.dj/wpsuhBh9kc5OZA
TheOtherHobbes 8y ago
Doesn't work for me - I get short glitchy bursts of noise and then it stops. Chrome 68.0.3440.106 on an iMac Pro.
- GEverding 8y ago
  Can you hop onto the discord server so we can help you.
- TheOtherHobbes 8y ago
  Actually that was caused by a rogue FB tab eating 100% CPU. [Sigh...] All fine now.
minikomi 8y ago
As long as there's a pretty predictable 4/4 beat, it seems to do well. https://rave.dj/fR61DJEv2DP4Tw https://rave.dj/fR61DJEv2DP4Tw DJ AssultPink - Ass ' n ' TT Although the BPM detection usually works, It seems to have trouble getting the songs synced in phrase - 2nd tracks come in starting on the 3rd bar or something.
d3sandoval 8y ago
Seems like you can put rap with anything and it'll sound good! Here's the Killers with Eminem: https://rave.dj/3OYTG3uFFUrMIg https://rave.dj/3OYTG3uFFUrMIg
jariz 8y ago
That blur filter absolutely annihilates my macbook's CPU. EDIT: 4 hours remaining... hmmm.. feeding it a 400 track playlist probably wasn't a good idea
tonetheman 8y ago
Pressure Jean https://rave.dj/23kYqXObZm0izg https://rave.dj/23kYqXObZm0izg Billy Jean and Under Pressure... what a lovely site.
appstorelottery 8y ago
Rammstein Vs. Crazy Town. Dark :-) Du By The Hast https://rave.dj/sN4EnkKdPfj-ow https://rave.dj/sN4EnkKdPfj-ow
thanatropism 8y ago
So I tried to mix two guitar-heavy songs that were bound to be incompatible and the results are kind of okay. Only one has vocals and it comes out way out of tune, but the general development of the songs fits well. It somewhat feels that this has more to do with the predictable sequence of verse/chorus/verse bars in pop music. But eh. The video is pretty good too: https://rave.dj/dBgxMMEtR9j-nw https://rave.dj/dBgxMMEtR9j-nw ---- Edit: Here's an example of an utter failure that illustrates my hypothesis: it mixes a song that has a traditional verse/chorus/verse structure with a techno track that's a monotonic crescendo. The algorithm doesn't know what to do about it (the correct answer, although not leading to great music, would be to use parts from the begginning of the crescendo track so not to overpower the pop song.) https://rave.dj/-Ls2Nu6CPD0Ssw https://rave.dj/-Ls2Nu6CPD0Ssw Edit 2: Here's an easy one it gets wrong: track 1 has great loopable instrumental grooves that go on each for a few bars before rap vocals kick in. Track 2 is a person talking. It should not be overlapping vocals, it should just highlight the instrumental loops. https://rave.dj/acvjP2J3oQWF4Q https://rave.dj/acvjP2J3oQWF4Q
- e_proxus 8y ago
  I think the tracks needs to carefully picked by a human first, then it can turn out good. Too many chords and melodies in both tracks just creates a mess. Pure drum and beat tracks on top of melodies seems to be an easy combo: Covers on top of the original was a surprising success: https://rave.dj/ArkBRLe-216kdg https://rave.dj/ArkBRLe-216kdg https://rave.dj/Pty3Hy1Fum9Tag https://rave.dj/Pty3Hy1Fum9Tag Pure drum tracks plus acapella: https://rave.dj/3K-oowQBpD09GA https://rave.dj/3K-oowQBpD09GA
  - thanatropism 8y ago
    But dissonant melodies can sound good; for a while bitonalism (some Debussy; most notoriously Darius Milhaud) was a compromise or a gateway drug to straight atonalism. My first example has vocals in a different key from the guitar, but the song structure works. Basically mixing any pop songs work -- here's a very very very good one with Sepultura + Pet Shop Boys https://rave.dj/SENYa64kow5OLg https://rave.dj/SENYa64kow5OLg ... the point being that pop music is very very regular in its verse/chorus/verse narrative curve.
kvgr 8y ago
Just one side note, that moving background is giving me motion sickness :) But I am gonna probably spend a lot of time, making mixes...
- Zopieux 8y ago
  Yes, this background video makes for a terrible experience. I know it looks cool and startupy (at least it did in 2015) but this trend has to stop. Ended up hiding it with an ad blocker rule.
cjohansson 8y ago
Acoustic Blues - Spotify playlist via rave.dj: https://rave.dj/NX2BLIeTJW_YtQ https://rave.dj/NX2BLIeTJW_YtQ Was better than I expected, this is kind of a stress test
SyneRyder 8y ago
If there's any Eurovision geeks here, I tried putting two Eurovision songs together, and now I can't stop watching "I Feed You My Rhythm Inside" by Margaret Berger vs Loïc Nottet. I must have played this 10 times in a row now. https://rave.dj/_sYhWmI-iHgq_Q https://rave.dj/_sYhWmI-iHgq_Q
- stephengillie 8y ago
  After watching this, I want to watch another, similar mashup. This site could really use a recommendation/autoplay system, and I could listen for hours. Maybe I've been watching Youtube too much.
- minikomi 8y ago
  This is probably the best one I've seen because it gets the phrasing just right
citation_please 8y ago
At great risk of sounding haughty, as someone who's perhaps a bit more into the DJing scene than what's probably the average HN user, all of these sound horrible. Beat matching is the easiest part of DJing, and that's about all that this tool does, so I don't think it's solving any DJing problems specifically. One thing that it does do is take away the turntable GUI (or hardware) and replace it with a two-field upload form, radically reducing the amount of know-how required to perform beat-matching. That's just really scratching the surface of what a lot of "live" DJs do (as they're called these days), as many are bringing instruments like drums and saxophones (see Big Gigantic[1]), keyboards and vocoders (see Lorenz Rhode[2]), their voice (see Gallago[3]), and traditional African drums (see Black Motion[4]), let alone simple song selection and set progression - "reading the crowd". [1] https://www.youtube.com/watch?v=TkxMjfYOE-g https://www.youtube.com/watch?v=TkxMjfYOE-g [2] https://www.youtube.com/watch?v=vwf2uvWlL_c https://www.youtube.com/watch?v=vwf2uvWlL_c [3] https://www.youtube.com/watch?v=wmCFPjwlxIU https://www.youtube.com/watch?v=wmCFPjwlxIU [4] https://www.youtube.com/watch?v=zHEc9uA2Zmw https://www.youtube.com/watch?v=zHEc9uA2Zmw When the tool comes along that can style-transfer two songs in the same way that it can for images, then I will admit that AI is on the verge of taking our music-creating/music-playing jobs. But for now, I'm satisfied that there's a bit more to the depth of DJing than that what an AI can learn.
- tomphoolery 8y ago
  Agreed! I'm in a band called The Wonder Bars[1], and we play house music live with real instruments, but we also include drum machines. We're very far from computers being able to improvise (well), and 4-5 humans playing live instruments is just a crowd-captivating visual. Along with Agent Zero[2], Worldtown Soundsystem[3], and several other bands in the Philadelphia area, we make up a vibrant "live electronic" scene united by the way we make music, not by the genres of music that we particularly choose to write and play. We're also DJs/producers, and as a DJ, I somewhat disagree with AI ever taking our music-creating jobs. Perhaps playing music will be somewhat more automated in the future, but history shows that creating music will just become more complex and more interesting as we continue forward. Think about it: There are still _professional_ drummers out there, people just paid to drum, when drum machines exist. There are entire orchestras that are paid almost the same salary as developers, yet the Vienna Symphonic Library lets a single person on a keyboard play an entire orchestra's score. The truth is, compositions have classically exploited the modern technology of the day to their own advantage, and I don't see that stopping anytime soon. I can even imagine a world where the independent singer/songwriter suddenly becomes more capable than ever, with AI allowing them to orchestrate entire film scores by just playing a piano or a guitar into their computer. But I don't see the creative aspect of music dying just because we built a machine to organize some stuff better for us. [1]: https://open.spotify.com/artist/2nrkwnQWEqM20n92QC7Cdy https://open.spotify.com/artist/2nrkwnQWEqM20n92QC7Cdy [2]: https://www.facebook.com/agentzeromusic https://www.facebook.com/agentzeromusic [3]: http://world.town http://world.town
maze-le 8y ago
Love it! What I find very interesting is, the stability of the system. There must be quite the heavy load on the machine: retrieval, analysis, tempo matching, mashup creation, encoding and all on a ~11 hours HN-related stress test.
logicchains 8y ago
This one managed to match up the lyrics of two similarly-themed songs surprisingly well, assumedly by accident: https://rave.dj/y0GOaTZwBsEvYw https://rave.dj/y0GOaTZwBsEvYw. "But mighty fine only got you somewhere half the time, the other half either got you... eighteen years, and on the eighteenth birthday he found out it wasn't his!"
ratsimihah 8y ago
Love the UI and UX and the idea, but unfortunately the end result was impossible to listen to. Might've been just me picking 2 incompatible songs.
logicchains 8y ago
周杰伦 meets 3 Inches of Blood: what the world really needs is more bilingual songs about slaying the orcs! https://rave.dj/aO7XPBNgFR7W_g https://rave.dj/aO7XPBNgFR7W_g
suda50 8y ago
Turn Down for What seems to go well with a lot of songs: https://rave.dj/cBQ8koXg_09blA https://rave.dj/cBQ8koXg_09blA
- r3bl 8y ago
  Because it's one of the rare electronic songs that became popular whose speed is ~100 BPM (BPM = beats per minute in this case). That makes it compatible with a lot of pop and hip hop songs. Add to that the fact that it contains almost no lyrics (while pop songs contain almost no low frequencies) and you have a match.
joaomacp 8y ago
The two best results I got (both were 'easy' for the AI, but I was still surprised): Supa Hot Fire + Linkin Park: https://rave.dj/Kph8bLPfCCmsaw https://rave.dj/Kph8bLPfCCmsaw A known bass drop + Sia - Chandelier: https://rave.dj/h9rjxodw1vjgkw https://rave.dj/h9rjxodw1vjgkw
paulm12345 8y ago
Check out mixes of many songs, they include many more advanced techniques than seen in mashups: https://www.rave.dj/iOfKQXFw3TxTWA https://www.rave.dj/iOfKQXFw3TxTWA
default-kramer 8y ago
Does the "Mix many songs into a DJ set" option even work? It seems to create a mashup instead.
- cwftw 8y ago
  Try adding more than two songs, ideally 50 or more to give the AI something to work with. I'd recommend picking a YouTube playlist.
andybak 8y ago
And a surprisingly successful merger of Cutty Ranks and Abba with the awesome title of "Limb Queen" https://rave.dj/Mgv2ZGiuYfNnow https://rave.dj/Mgv2ZGiuYfNnow I giggled all the way through it. A bit of better volume balancing where the two songs overlap and I'd play that at a party with no regrets...
- senorjazz 8y ago
  nice - as you say, would be better if the Abba track was lower in the mix when it first comes in, but the timing and parts used to bring it in are spot on. Perhaps the algorithm would do better with better quality versions of the track rather than youtube quality?
cookiefonster 8y ago
test
cookiefonster 8y ago
A few Raves I did that I like (most are with It's Everyday Bro because rave.dj tends to work well with that song): https://rave.dj/kzPLdIZQmIsS0Q https://rave.dj/kzPLdIZQmIsS0Q https://rave.dj/y1qMUYY7GbNmKA https://rave.dj/y1qMUYY7GbNmKA https://rave.dj/JaJYoO_hBQNkjw https://rave.dj/JaJYoO_hBQNkjw https://rave.dj/U4BPJ9duII-o9Q https://rave.dj/U4BPJ9duII-o9Q (gets off-sync later sadly) https://rave.dj/Xx-6ojmH86hxpA https://rave.dj/Xx-6ojmH86hxpA None of these are perfect but Rave is A LOT of fun to mess around with, there's no denying that.
- paulm12345 8y ago
  I think you'd probably like making a mix too! https://www.rave.dj/iOfKQXFw3TxTWA https://www.rave.dj/iOfKQXFw3TxTWA Just provide ~50 or more songs for best results
  - cookiefonster 8y ago
    I've done it before, those are a lot of fun too.
deleted 8y ago
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kirat194 8y ago
Amazing Ai
chejazi 8y ago
Use case recommendation: pick a track with a good background beat and another track that is mostly lyrical to lay over it. ie: https://rave.dj/XDTIdjbTSIWHxw https://rave.dj/XDTIdjbTSIWHxw (gets great at 30 seconds)
ArmelC 8y ago
Hey all! I'm one of the devs at Rave (working on the website). This is really cool to see all this interest in us! To address a few points I've seen on here: We do more than just beatmatching. That said, most of our recent technical advancements are done on our mix AI, as it's been our recent push. Give mixes a try (which work better the more songs you give them)! We'll be pivoting back to mashups soon as well to continue improvements on that AI, particularly rolling in some of the improvements we developed through the mix AI. Our goals have really been to bring mashups and mixes to those who don't have the technical ability first and foremost, and focus on making it as accessible as possible. We want to make sure our baseline is solid before targeting customizations. I feel paraschopra's post really captured what we wanted to achieve. Ultimately, we're still at the beginning of what we want to do, and have plenty of improvements on the way.
- samstave 8y ago
  Some feedback: * Awesome job, here are some feature suggestions: * The ability to rate the mix/mashup as the author * The ability to rate as an audience * visual of the algo's understanding of the songs sound profile and how its lining them up * The ability to select the time-range of the song which must be included/excluded from the mix * ability to ask it to weight a repeating frequency of a song * name of the artist/track/video playing displayed --- Where are you guys located?
  - paulm12345 8y ago
    Good suggestions, we're located in Kitchener Ontario Canada. RE: "ability to ask it to weight a repeating frequency of a song" - you'd want songs to appear in your mix more than once?
    - samstave 8y ago
      Yes, if I am mixing a series of my favorite songs... also I may want it to mix from A B C B A B C A to see how that sounds...
dschuessler 8y ago
If there is someone here who also played Donkey Kong Country 2 in his/her childhood: Some of its tunes make for a pretty decent hip hop beat. https://rave.dj/sRxPBRstYvXeuw https://rave.dj/sRxPBRstYvXeuw
Froyoh 8y ago
What's with the high CPU usage?
meltonian 8y ago
My first two attempts didn't turn out that great. However, N.W.A + Beatles works! https://rave.dj/lym2TmHHLQhOiQ https://rave.dj/lym2TmHHLQhOiQ
pinebox 8y ago
Useless. All the prog house tracks I would actually want to mix with a tool like this are around 9 minutes, which is "too long".

199 points by ozzmotik 8y ago

lysp 8y ago

Interesting mashup - https://rave.dj/ac-w-nK_8vCiFQ https://rave.dj/ac-w-nK_8vCiFQ I tested - Run DMC - It's like that vs Funky Town.

mohn 8y ago
Run DMC vs. Toni Basil - 'Hey Trickey' did not turn out as good as I'd hoped: https://rave.dj/KEmdgiqJTerSEg https://rave.dj/KEmdgiqJTerSEg

subsubsub 8y ago

Any blog posts on how this is working? Michael Jackson, Janet Jackson & The Wurzels... Scream Harvester: https://rave.dj/talVuJvYAn6zbA https://rave.dj/talVuJvYAn6zbA

wc_cs 8y ago
combine harvester intensifies
citation_please 8y ago
Seems to just be a beat matcher / BPM adjuster, which is interesting in itself, but quite basic features in any DAW/DJing software.

justatdotin 8y ago

that was actually heaps better than I expected.. https://rave.dj/q9LAsKpPBKVPhw https://rave.dj/q9LAsKpPBKVPhw

rcv 8y ago

Wow, it actually produced something kind of reasonable for the least reasonable input I could come up with. I present "In the Hall of the Dracula Mountain King" https://rave.dj/1jK2s4-jAt3meg https://rave.dj/1jK2s4-jAt3meg

toomanybeersies 8y ago

Ironically, this seems to really struggle to make good mixes from techno. It mashes it up a bit too much.

johnmorrow 8y ago
You could say that for this one as well, but its still pretty impressive https://rave.dj/sVAYFGYFUxM2nw https://rave.dj/sVAYFGYFUxM2nw

sbhn 8y ago

Cat music mashup. Guaranteed to make your cat look at you as if you’re an idiot. https://rave.dj/PKqlwGPNObCcaw https://rave.dj/PKqlwGPNObCcaw

mburst 8y ago

Seems to be pretty awesome. I tested out two instrumental bits in Hardwell - Spaceman and SHM - Greyhound and found that the algorithm had some issues with the low end clashing on mixing between the songs https://rave.dj/qP-eYlelx75GjQ https://rave.dj/qP-eYlelx75GjQ Though it leveled out after a few seconds. Would love to know more about how it works!

m00dy 8y ago
Definitely. I'm so curious.

paraschopra 8y ago

This is how well thought out products look like. - Really simple and intuitive start. I created my first mashup within first 2 minutes and at all times knew exactly what I was doing - Inbuilt virality. People will show off their produced mixes to their friends and on social media. - Actually solves a pain point. How many of us have tried mixing songs and gave up? This gives a sense of creativity while taking care of all the complexity. Even though I don't know how they'll monetize this, it seems a really well thought out product.

ehsankia 8y ago
Not only that, but the small things like mashing up the song title and album art truly make this a quality product. Here is my first try: Disclosure - Bang That + The XX - On Hold = Hold That https://rave.dj/1F1p4ZS9ipWmYA https://rave.dj/1F1p4ZS9ipWmYA
- jgtrosh 8y ago
  Thanks, that was very enjoyable and I think it would fit right in a world-class DJ mix.
- paraschopra 8y ago
  The mix is pretty awesome!
- imdsm 8y ago
  I tried to give it a challenge, mixing two completely different genres of music – medieval with rap. Amazingly the medieval tune followed the beat of the rap song. https://rave.dj/h3o1s4nrg5d2sQ https://rave.dj/h3o1s4nrg5d2sQ
- adriancooney 8y ago
  This is fantastic!
- kart23 8y ago
  This is definitely the best one in this thread so far.

jjcm 8y ago

Pretty interesting. I used to be heavily into the mashup scene, even going so far as to make mashup.fm (another turntable/plug.dj clone). Here's some of my favorite classical mashups alongside the rave.dj version: Thomas the Tank Engine vs Biggie Smalls Original: https://www.youtube.com/watch?v=ETfiUYij5UE https://www.youtube.com/watch?v=ETfiUYij5UE Rave.dj: https://rave.dj/XUBqv8IsZPVZMQ https://rave.dj/XUBqv8IsZPVZMQ This was the easiest as it's just a vocal track laid onto a beat, but it really jumps the tracks around a ton, seemingly randomly. It at least doesn't jump mid-measure though and fits with the beat. ------------------------------------ Modest Mouth (Modest Mouse vs Smashmouth) Original: https://www.youtube.com/watch?v=wEmJH7JsKgM https://www.youtube.com/watch?v=wEmJH7JsKgM Rave.dj: https://rave.dj/gUb_lU_PrHBdKA https://rave.dj/gUb_lU_PrHBdKA The Neil C original is a classic, and really fits two songs together that don't belong near each other. Rave plays the intros in sequential order, with vocals overlapping all over. They really need a central channel filter to see if they can pop the vocals out from the instrumentals. This is really a tuesday-surprise lunchroom casserole of a mashup, with a rather abrupt ending. ------------------------------------ Korn vs Taylor Swift Original: https://soundcloud.com/user-490703809/we-are-coming-undone-korn-taylor-swift-mashup-by-isonsine https://soundcloud.com/user-490703809/we-are-coming-undone-k... Rave.dj: https://rave.dj/usdGtcmoNJeItg https://rave.dj/usdGtcmoNJeItg This one really works because of some of the more complex editing on Isosine's part. The rave one is a disaster. Feels like you're standing in between two parties that are blasting two jams, that just happened to have their drops/choruses line up. ------------------------------------ Kanye West vs The Beatles Original: http://mashup.fm/media/Hey_Jude_We_Major_More_Popular_than_Jesus_-_Kanye_West_The_Beatles-105124470.mp3 http://mashup.fm/media/Hey_Jude_We_Major_More_Popular_than_J... Rave.dj: https://rave.dj/ZcRpPLK6QZEvZA https://rave.dj/ZcRpPLK6QZEvZA This is a personal favorite, and I think it works because of how long the Hey Jude intro is. It really means you forget about Kanye completely until he jumps in. It works because of how slow of a buildup Hey Jude is. The Rave version has no nuance here. They speed up Hey Jude, up-pitching it in the process and making it sound like Raffi or some other child entertainer. They down pitch Kanye, making him seem like some gangsta thug. It really doesn't work at all. ------------------------------------ I really want this to become better, but I feel like it needs to be trained more tricks (vocal separation for one) to really be worth it. Also minor QOL improvement would be to allow you to preview tracks before you add them to the mix. Hard to find one that's a good audio only rip of a song sometimes.

wattengard 8y ago

Ok. I think I nailed the perfect one: https://rave.dj/ySGzN-0svLlPpA https://rave.dj/ySGzN-0svLlPpA

wc_cs 8y ago
definitely. bravo.
sbarre 8y ago
Wow, I have to say I'm kind of amazed this mashup was generated and not hand-crafted..
- empath75 8y ago
  Really.. it sounds like someone just hit play on two songs at the same time to me. Beatmatching is trivial.
cjohansson 8y ago
Sounds really good
linsomniac 8y ago
I guess the audio mix is good... The video was using 90% of my processing power, what in the world was going on there?
cookiefonster 8y ago
This one sounds pretty good wow. But Space Jam is hard to mess up to be fair.

asdojasdosadsa 8y ago

Tried to use some generic pop songs ( https://rave.dj/BtHuRn1-lAnDEQ https://rave.dj/BtHuRn1-lAnDEQ - [madonna - hung up] & [ timbaland - the way i are ]) and result is not bad at all, a bit cacophonous in some parts, but other than that it's [the smashup] quite good!

wc_cs 8y ago

Little L x Boogie Nights https://rave.dj/G1X1uN36e977Hw https://rave.dj/G1X1uN36e977Hw

LordHeini 8y ago

It produces some quite funky technical death metal too. https://rave.dj/ULx2nBaldJ9ocw https://rave.dj/ULx2nBaldJ9ocw

maze-le 8y ago
This one is great! My grindcore experiment wans't too successful, but it gave me a chuckle anyway. Nasum & Napalm Death: Face the Children [0]: https://rave.dj/yjDMS4Pu0a81ZA https://rave.dj/yjDMS4Pu0a81ZA (Napalm Death: Suffer the Children vs. Nasum: The Masked Face)

deleted 8y ago

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PelCasandra 8y ago

Blondie (Rapture) and The Beastie Boys (Fight for your Right) https://rave.dj/E_SszLqaCgUrgg https://rave.dj/E_SszLqaCgUrgg

bhalley 8y ago

Awesome project! I just made https://rave.dj/0GU6N96tgPXj9Q https://rave.dj/0GU6N96tgPXj9Q and it's awesome! love being able to use a Spotify playlist. Have you considered using BunnyCDN instead of Stackpath for the CDN? It'll probably be much cheaper.

sylvinus 8y ago

As expected, French House mixes very well ;-) Daft Punk + Justice: https://rave.dj/Lpr1oWauUIIeaA https://rave.dj/Lpr1oWauUIIeaA

xgbi 8y ago
Tu traines sur HN toi ? :) Gui13

baxtr 8y ago

I played with it and used some generic party songs. The result is not bad. This one for example, "Hey ya! on steroids" https://rave.dj/iIeQ-Bx8mnFDWQ https://rave.dj/iIeQ-Bx8mnFDWQ

stef25 8y ago

Holy crap, Dolly Parton vs Richie Hawtin. It's much much better than expected but not quite ready for the dancefloor yet. https://rave.dj/wpsuhBh9kc5OZA https://rave.dj/wpsuhBh9kc5OZA

TheOtherHobbes 8y ago

Doesn't work for me - I get short glitchy bursts of noise and then it stops. Chrome 68.0.3440.106 on an iMac Pro.

GEverding 8y ago
Can you hop onto the discord server so we can help you.
TheOtherHobbes 8y ago
Actually that was caused by a rogue FB tab eating 100% CPU. [Sigh...] All fine now.

minikomi 8y ago

As long as there's a pretty predictable 4/4 beat, it seems to do well. https://rave.dj/fR61DJEv2DP4Tw https://rave.dj/fR61DJEv2DP4Tw DJ AssultPink - Ass ' n ' TT Although the BPM detection usually works, It seems to have trouble getting the songs synced in phrase - 2nd tracks come in starting on the 3rd bar or something.

d3sandoval 8y ago

Seems like you can put rap with anything and it'll sound good! Here's the Killers with Eminem: https://rave.dj/3OYTG3uFFUrMIg https://rave.dj/3OYTG3uFFUrMIg

jariz 8y ago

That blur filter absolutely annihilates my macbook's CPU. EDIT: 4 hours remaining... hmmm.. feeding it a 400 track playlist probably wasn't a good idea

tonetheman 8y ago

Pressure Jean https://rave.dj/23kYqXObZm0izg https://rave.dj/23kYqXObZm0izg Billy Jean and Under Pressure... what a lovely site.

appstorelottery 8y ago

Rammstein Vs. Crazy Town. Dark :-) Du By The Hast https://rave.dj/sN4EnkKdPfj-ow https://rave.dj/sN4EnkKdPfj-ow

thanatropism 8y ago

So I tried to mix two guitar-heavy songs that were bound to be incompatible and the results are kind of okay. Only one has vocals and it comes out way out of tune, but the general development of the songs fits well. It somewhat feels that this has more to do with the predictable sequence of verse/chorus/verse bars in pop music. But eh. The video is pretty good too: https://rave.dj/dBgxMMEtR9j-nw https://rave.dj/dBgxMMEtR9j-nw ---- Edit: Here's an example of an utter failure that illustrates my hypothesis: it mixes a song that has a traditional verse/chorus/verse structure with a techno track that's a monotonic crescendo. The algorithm doesn't know what to do about it (the correct answer, although not leading to great music, would be to use parts from the begginning of the crescendo track so not to overpower the pop song.) https://rave.dj/-Ls2Nu6CPD0Ssw https://rave.dj/-Ls2Nu6CPD0Ssw Edit 2: Here's an easy one it gets wrong: track 1 has great loopable instrumental grooves that go on each for a few bars before rap vocals kick in. Track 2 is a person talking. It should not be overlapping vocals, it should just highlight the instrumental loops. https://rave.dj/acvjP2J3oQWF4Q https://rave.dj/acvjP2J3oQWF4Q

e_proxus 8y ago
I think the tracks needs to carefully picked by a human first, then it can turn out good. Too many chords and melodies in both tracks just creates a mess. Pure drum and beat tracks on top of melodies seems to be an easy combo: Covers on top of the original was a surprising success: https://rave.dj/ArkBRLe-216kdg https://rave.dj/ArkBRLe-216kdg https://rave.dj/Pty3Hy1Fum9Tag https://rave.dj/Pty3Hy1Fum9Tag Pure drum tracks plus acapella: https://rave.dj/3K-oowQBpD09GA https://rave.dj/3K-oowQBpD09GA
- thanatropism 8y ago
  But dissonant melodies can sound good; for a while bitonalism (some Debussy; most notoriously Darius Milhaud) was a compromise or a gateway drug to straight atonalism. My first example has vocals in a different key from the guitar, but the song structure works. Basically mixing any pop songs work -- here's a very very very good one with Sepultura + Pet Shop Boys https://rave.dj/SENYa64kow5OLg https://rave.dj/SENYa64kow5OLg ... the point being that pop music is very very regular in its verse/chorus/verse narrative curve.

kvgr 8y ago

Just one side note, that moving background is giving me motion sickness :) But I am gonna probably spend a lot of time, making mixes...

Zopieux 8y ago
Yes, this background video makes for a terrible experience. I know it looks cool and startupy (at least it did in 2015) but this trend has to stop. Ended up hiding it with an ad blocker rule.

cjohansson 8y ago

Acoustic Blues - Spotify playlist via rave.dj: https://rave.dj/NX2BLIeTJW_YtQ https://rave.dj/NX2BLIeTJW_YtQ Was better than I expected, this is kind of a stress test

SyneRyder 8y ago

If there's any Eurovision geeks here, I tried putting two Eurovision songs together, and now I can't stop watching "I Feed You My Rhythm Inside" by Margaret Berger vs Loïc Nottet. I must have played this 10 times in a row now. https://rave.dj/_sYhWmI-iHgq_Q https://rave.dj/_sYhWmI-iHgq_Q

stephengillie 8y ago
After watching this, I want to watch another, similar mashup. This site could really use a recommendation/autoplay system, and I could listen for hours. Maybe I've been watching Youtube too much.
minikomi 8y ago
This is probably the best one I've seen because it gets the phrasing just right

citation_please 8y ago

At great risk of sounding haughty, as someone who's perhaps a bit more into the DJing scene than what's probably the average HN user, all of these sound horrible. Beat matching is the easiest part of DJing, and that's about all that this tool does, so I don't think it's solving any DJing problems specifically. One thing that it does do is take away the turntable GUI (or hardware) and replace it with a two-field upload form, radically reducing the amount of know-how required to perform beat-matching. That's just really scratching the surface of what a lot of "live" DJs do (as they're called these days), as many are bringing instruments like drums and saxophones (see Big Gigantic[1]), keyboards and vocoders (see Lorenz Rhode[2]), their voice (see Gallago[3]), and traditional African drums (see Black Motion[4]), let alone simple song selection and set progression - "reading the crowd". [1] https://www.youtube.com/watch?v=TkxMjfYOE-g https://www.youtube.com/watch?v=TkxMjfYOE-g [2] https://www.youtube.com/watch?v=vwf2uvWlL_c https://www.youtube.com/watch?v=vwf2uvWlL_c [3] https://www.youtube.com/watch?v=wmCFPjwlxIU https://www.youtube.com/watch?v=wmCFPjwlxIU [4] https://www.youtube.com/watch?v=zHEc9uA2Zmw https://www.youtube.com/watch?v=zHEc9uA2Zmw When the tool comes along that can style-transfer two songs in the same way that it can for images, then I will admit that AI is on the verge of taking our music-creating/music-playing jobs. But for now, I'm satisfied that there's a bit more to the depth of DJing than that what an AI can learn.

tomphoolery 8y ago
Agreed! I'm in a band called The Wonder Bars[1], and we play house music live with real instruments, but we also include drum machines. We're very far from computers being able to improvise (well), and 4-5 humans playing live instruments is just a crowd-captivating visual. Along with Agent Zero[2], Worldtown Soundsystem[3], and several other bands in the Philadelphia area, we make up a vibrant "live electronic" scene united by the way we make music, not by the genres of music that we particularly choose to write and play. We're also DJs/producers, and as a DJ, I somewhat disagree with AI ever taking our music-creating jobs. Perhaps playing music will be somewhat more automated in the future, but history shows that creating music will just become more complex and more interesting as we continue forward. Think about it: There are still _professional_ drummers out there, people just paid to drum, when drum machines exist. There are entire orchestras that are paid almost the same salary as developers, yet the Vienna Symphonic Library lets a single person on a keyboard play an entire orchestra's score. The truth is, compositions have classically exploited the modern technology of the day to their own advantage, and I don't see that stopping anytime soon. I can even imagine a world where the independent singer/songwriter suddenly becomes more capable than ever, with AI allowing them to orchestrate entire film scores by just playing a piano or a guitar into their computer. But I don't see the creative aspect of music dying just because we built a machine to organize some stuff better for us. [1]: https://open.spotify.com/artist/2nrkwnQWEqM20n92QC7Cdy https://open.spotify.com/artist/2nrkwnQWEqM20n92QC7Cdy [2]: https://www.facebook.com/agentzeromusic https://www.facebook.com/agentzeromusic [3]: http://world.town http://world.town

maze-le 8y ago

Love it! What I find very interesting is, the stability of the system. There must be quite the heavy load on the machine: retrieval, analysis, tempo matching, mashup creation, encoding and all on a ~11 hours HN-related stress test.

logicchains 8y ago

This one managed to match up the lyrics of two similarly-themed songs surprisingly well, assumedly by accident: https://rave.dj/y0GOaTZwBsEvYw https://rave.dj/y0GOaTZwBsEvYw. "But mighty fine only got you somewhere half the time, the other half either got you... eighteen years, and on the eighteenth birthday he found out it wasn't his!"

ratsimihah 8y ago

Love the UI and UX and the idea, but unfortunately the end result was impossible to listen to. Might've been just me picking 2 incompatible songs.

logicchains 8y ago

周杰伦 meets 3 Inches of Blood: what the world really needs is more bilingual songs about slaying the orcs! https://rave.dj/aO7XPBNgFR7W_g https://rave.dj/aO7XPBNgFR7W_g

suda50 8y ago

Turn Down for What seems to go well with a lot of songs: https://rave.dj/cBQ8koXg_09blA https://rave.dj/cBQ8koXg_09blA

r3bl 8y ago
Because it's one of the rare electronic songs that became popular whose speed is ~100 BPM (BPM = beats per minute in this case). That makes it compatible with a lot of pop and hip hop songs. Add to that the fact that it contains almost no lyrics (while pop songs contain almost no low frequencies) and you have a match.

joaomacp 8y ago

The two best results I got (both were 'easy' for the AI, but I was still surprised): Supa Hot Fire + Linkin Park: https://rave.dj/Kph8bLPfCCmsaw https://rave.dj/Kph8bLPfCCmsaw A known bass drop + Sia - Chandelier: https://rave.dj/h9rjxodw1vjgkw https://rave.dj/h9rjxodw1vjgkw

paulm12345 8y ago

Check out mixes of many songs, they include many more advanced techniques than seen in mashups: https://www.rave.dj/iOfKQXFw3TxTWA https://www.rave.dj/iOfKQXFw3TxTWA

default-kramer 8y ago

Does the "Mix many songs into a DJ set" option even work? It seems to create a mashup instead.

cwftw 8y ago
Try adding more than two songs, ideally 50 or more to give the AI something to work with. I'd recommend picking a YouTube playlist.

andybak 8y ago

And a surprisingly successful merger of Cutty Ranks and Abba with the awesome title of "Limb Queen" https://rave.dj/Mgv2ZGiuYfNnow https://rave.dj/Mgv2ZGiuYfNnow I giggled all the way through it. A bit of better volume balancing where the two songs overlap and I'd play that at a party with no regrets...

senorjazz 8y ago
nice - as you say, would be better if the Abba track was lower in the mix when it first comes in, but the timing and parts used to bring it in are spot on. Perhaps the algorithm would do better with better quality versions of the track rather than youtube quality?

cookiefonster 8y ago

test

cookiefonster 8y ago

A few Raves I did that I like (most are with It's Everyday Bro because rave.dj tends to work well with that song): https://rave.dj/kzPLdIZQmIsS0Q https://rave.dj/kzPLdIZQmIsS0Q https://rave.dj/y1qMUYY7GbNmKA https://rave.dj/y1qMUYY7GbNmKA https://rave.dj/JaJYoO_hBQNkjw https://rave.dj/JaJYoO_hBQNkjw https://rave.dj/U4BPJ9duII-o9Q https://rave.dj/U4BPJ9duII-o9Q (gets off-sync later sadly) https://rave.dj/Xx-6ojmH86hxpA https://rave.dj/Xx-6ojmH86hxpA None of these are perfect but Rave is A LOT of fun to mess around with, there's no denying that.

paulm12345 8y ago
I think you'd probably like making a mix too! https://www.rave.dj/iOfKQXFw3TxTWA https://www.rave.dj/iOfKQXFw3TxTWA Just provide ~50 or more songs for best results
- cookiefonster 8y ago
  I've done it before, those are a lot of fun too.

deleted 8y ago

[deleted]

kirat194 8y ago

Amazing Ai

chejazi 8y ago

Use case recommendation: pick a track with a good background beat and another track that is mostly lyrical to lay over it. ie: https://rave.dj/XDTIdjbTSIWHxw https://rave.dj/XDTIdjbTSIWHxw (gets great at 30 seconds)

ArmelC 8y ago

Hey all! I'm one of the devs at Rave (working on the website). This is really cool to see all this interest in us! To address a few points I've seen on here: We do more than just beatmatching. That said, most of our recent technical advancements are done on our mix AI, as it's been our recent push. Give mixes a try (which work better the more songs you give them)! We'll be pivoting back to mashups soon as well to continue improvements on that AI, particularly rolling in some of the improvements we developed through the mix AI. Our goals have really been to bring mashups and mixes to those who don't have the technical ability first and foremost, and focus on making it as accessible as possible. We want to make sure our baseline is solid before targeting customizations. I feel paraschopra's post really captured what we wanted to achieve. Ultimately, we're still at the beginning of what we want to do, and have plenty of improvements on the way.

samstave 8y ago
Some feedback: * Awesome job, here are some feature suggestions: * The ability to rate the mix/mashup as the author * The ability to rate as an audience * visual of the algo's understanding of the songs sound profile and how its lining them up * The ability to select the time-range of the song which must be included/excluded from the mix * ability to ask it to weight a repeating frequency of a song * name of the artist/track/video playing displayed --- Where are you guys located?
- paulm12345 8y ago
  Good suggestions, we're located in Kitchener Ontario Canada. RE: "ability to ask it to weight a repeating frequency of a song" - you'd want songs to appear in your mix more than once?
  - samstave 8y ago
    Yes, if I am mixing a series of my favorite songs... also I may want it to mix from A B C B A B C A to see how that sounds...

dschuessler 8y ago

If there is someone here who also played Donkey Kong Country 2 in his/her childhood: Some of its tunes make for a pretty decent hip hop beat. https://rave.dj/sRxPBRstYvXeuw https://rave.dj/sRxPBRstYvXeuw

Froyoh 8y ago

What's with the high CPU usage?

meltonian 8y ago

My first two attempts didn't turn out that great. However, N.W.A + Beatles works! https://rave.dj/lym2TmHHLQhOiQ https://rave.dj/lym2TmHHLQhOiQ

pinebox 8y ago

Useless. All the prog house tracks I would actually want to mix with a tool like this are around 9 minutes, which is "too long".