3 ms·

How about a third option, ads are by definition short and repeat a lot. No fancy ML needed, after a couple of times the filter gets one of these repeating frag

by tga 8y ago

How about a third option, ads are by definition short and repeat a lot. No fancy ML needed, after a couple of times the filter gets one of these repeating fragments it should be able to block it. Fairness bonus: you get to hear each new ad a couple of times.

bochoh 8y ago
The problem you have here is that in order to continue listening to songs more than just a couple of times you'd have to able to classify the song versus an ad. Otherwise once the system heard the song a few times it would start blocking it too.
- oliv__ 8y ago
  Just filter by length.
  - masukomi 8y ago
    it's radio. the length is infinite. there are pauses in music. there are pauses in speech. Also, he didn't mention anything about delayed listening. The implication was that it happens in real-time so you don't know how long it will be when you need to start dropping the levels.
- randomdata 8y ago
  That's not necessarily a bad thing. The decline in commercial music radio has been, in large part, because people quickly grow tired of hearing the same songs over and over again.
- tga 8y ago
  I expect most ads are <30s, most songs are >2m.
- taneq 8y ago
  Ads repeat several times an hour, songs very seldom repeat within an hour and even then usually only once. It should be possible (although not sure how practical) to just autocorrelate the current audio with audio over the past hour.
wink 8y ago
It sounds easy, but often isn't. Maybe radio spots are a little different because they're cheaper and usually more low-quality than TV ads, but it doesn't really work for TV ads - they often have small variations, e.g. 10sec identical, 5sec different, 10sec identical (easy example). Also depending on your method of analyzing the audio it's sometimes broadcast with an unhearable fingerprint that distorts the waveform (let's say like MP3 versus WAV, but worse). So yes, you can find some patterns - but the commercial breaks are highly mixed up and you wouldn't believe how many distinct commercials per channel are there, even if you think you hear the same ones all the time :)

by tga 8y ago

bochoh 8y ago

The problem you have here is that in order to continue listening to songs more than just a couple of times you'd have to able to classify the song versus an ad. Otherwise once the system heard the song a few times it would start blocking it too.

oliv__ 8y ago
Just filter by length.
- masukomi 8y ago
  it's radio. the length is infinite. there are pauses in music. there are pauses in speech. Also, he didn't mention anything about delayed listening. The implication was that it happens in real-time so you don't know how long it will be when you need to start dropping the levels.
randomdata 8y ago
That's not necessarily a bad thing. The decline in commercial music radio has been, in large part, because people quickly grow tired of hearing the same songs over and over again.
tga 8y ago
I expect most ads are <30s, most songs are >2m.
taneq 8y ago
Ads repeat several times an hour, songs very seldom repeat within an hour and even then usually only once. It should be possible (although not sure how practical) to just autocorrelate the current audio with audio over the past hour.

wink 8y ago

It sounds easy, but often isn't. Maybe radio spots are a little different because they're cheaper and usually more low-quality than TV ads, but it doesn't really work for TV ads - they often have small variations, e.g. 10sec identical, 5sec different, 10sec identical (easy example). Also depending on your method of analyzing the audio it's sometimes broadcast with an unhearable fingerprint that distorts the waveform (let's say like MP3 versus WAV, but worse). So yes, you can find some patterns - but the commercial breaks are highly mixed up and you wouldn't believe how many distinct commercials per channel are there, even if you think you hear the same ones all the time :)