raphaelj

12 ms·

31.
Date Recordings from Background Noises(datethis.app)
2 points by raphaelj 2y ago|0 comments
32.
by raphaelj 2y ago
People always forget that a mostly nuclear grid also require a some kind of storage or demand scalability.
33.
Show HN: Date Audio/video Recordings from Background Noises(datethis.app)
1 points by raphaelj 3y ago|0 comments
34.
by raphaelj 3y ago
Is it really? A lot of these drivers debuted with karting, which while not being exactly cheap, is accessible to the most of the middle class.
35.
by raphaelj 3y ago
> is going to be extremely high to make it profitable to build a plant that only runs 3% of the time. It's probably fine, as the cost of renewable electricity is now lower than the fuel cost (aka the variable cost) of these plants.
36.
by raphaelj 3y ago
"Au large" is an French expression and can be translated by "At sea" or "Off-shore".
37.
by raphaelj 3y ago
Where are you located? I do not have full coverage of all countries: https://datethis.app/about#coverage Some smartphones or apps also do not record the full audio spectrum. iPhones works well, but Android support is not as
38.
by raphaelj 3y ago
Hi author here, This is a hobby project I've been working on for a few months. AMA ! Raphael
39.
by raphaelj 3y ago
Looks like the demands gets lower over the years, so my guess is that the stress on storage and hydrogen gets lower, and thus the price lower too
40.
by raphaelj 3y ago
Your graph does not show the real return of the SP500, as it does not include dividends.
41.
by raphaelj 3y ago
I don't own any electric car. What are the advantages and disadvantages of Tesla's standard vs CCS2 (pretty common in Europe as far as I know) ?
42.
by raphaelj 3y ago
What are the advantages of this compared to cheap writable optical disks (DVD, Blueray ...)?
43.
by raphaelj 3y ago
"Politicians in Europe know they will eventually have to impose taxes on electricity (or else raise income taxes)" I heard that a lot, but are we sure about this? Petrol in Europe is taxed at about 50%, but is almost exclusively i
44.
by raphaelj 3y ago
Is it 2% or 2 percentage points? Like, if the attractive fund manager gets a 4% ROI, is the unattractive one getting 6% or 4.08% (0.08 is 2% of 4%).
45.
by raphaelj 3y ago
Something similar happened when I put a dehumidifier in my bedroom. Basically, I noticed that the room was heating significantly when I turned it on. Way faster than what you should expect from its power usage (about 250W avg.). Correct me
46.
by raphaelj 3y ago
Do we have estimates of the energy requirements for these models? I just did some napkin math, looks like inference on a 30B model with a GTX 4090 should get you about 30 tokens/sec [1], or 100k tokens/hour. Considering such syste
47.
by raphaelj 3y ago
I had the same thoughts a few years ago. The winner will not be the first one to the market, but the one at the right time with the best car on the market.
48.
by raphaelj 3y ago
Actually quite the opposite. The EPR cost less per GW than what was announced for these.
49.
by raphaelj 3y ago
No, but they do not provide the data in real time.
50.
by raphaelj 3y ago
For Europe, there are academic and public organizations that publish these ENF backlog since about 2017. For US, I couldn't find any open dataset. For these regions, I'm basically recording the sound of an A/C motor to get th
51.
by raphaelj 3y ago
Well, that's the very specific command I'm using in one of my webapps ( https://datethis.app ), and it's one of the main performance hotspots, so it's very *not* immaterial.
52.
by raphaelj 3y ago
About 2x faster on my 4-cores ARM server, without any significant parallelism overhead: $ time ffmpeg_threading/ffmpeg -i input.mp4 -ar 1000 -vn -acodec flac -f flac -y /dev/null -hide_banner -loglevel quiet 14.90s
53.
by raphaelj 3y ago
From what I understand, these TWhs refer to total energy usage, not electricity usage. If you replace a ICE by an BEV powered by solar cells, you actually reduce the total TWhs because of efficiecy: - ICE: 6L of gasoline per 100km, that equ
54.
by raphaelj 3y ago
It can still work somewhat great for parts of the economy. E.g. healthcare, education, utility...
55.
by raphaelj 3y ago
I'm working an a web app than tries to date audio and video recordings based on the network grid's noise. https://datethis.app I'm still working on improving the UX and the DSP. I made the DSP part open source.
56.
by raphaelj 3y ago
What if there is no money to win, but only a huge risk for big loss of market share for FAMG companies if they don't get of the AI train? Google Search might not earn more money it does now by buying Nvidia devices, but might loose big
57.
by raphaelj 3y ago
My guess is that they do not. Routing these packets around the planet would be a huge waste of their limited electrical and transmission resources.
58.
by raphaelj 3y ago
I'm writing a open-source library ( https://github.com/RaphaelJ/libhum/ ) and a webapp ( https://datethis.app:8080/ ) that detects the Utility Grid noise emitted by electrical devices (A/C,
59.
by raphaelj 3y ago
Thanks for the answer. > Any small computer with AMD Phoenix offers a much better GPU performance per dollar than any NVIDIA Orin. > The use of NVIDIA Orin is justified only when one needs a device that is qualified for an automotive
60.
by raphaelj 3y ago
Any idea how the GPU compares to the Nvidia's Jetson series?

More ›