TSAC is an audio compression utility reaching very low bitrates such as 5.5 kb/s for mono or 7.5 kb/s for stereo at 44.1 kHz with a good perceptual quality. Hence TSAC compresses a 3.5 minute stereo song to a file of 192 KiB. Francis Ballard. Creator of ffmpeg and qemu
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The quality is dogshit though.
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for the compression rate it offers the quality is great. the first few iterations of mp3 weren't that great either. the quality of this approach will keep improving. but encoding/decoding requires a lot of resources and the model is ~300MB. whether it makes sense depends on the application. e.g. if you're storing a a million hours of audio recordings from court sessions or interviews, the quality is good enough at 6 kb/s (that's bits, not bytes. 64kb/s for comparable m4a) you now only need 3TB storage instead of 30TB.
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That's fair but it's not gonna save space on my phone right this second so I'm going to discard it snobbishly regardless .
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Just upsample it before playback then
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Smart.
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It sounds the same
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You might have ear-aids.
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WHAT
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AAAAAAAAAAIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIDDDDDDDDDDDDDDDDDDDDSSSSSSSSSSSSSS!
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He doesn't change the sampling rate so that's irrelevant. Also testing 96kHz to 44kHz is not interesting since human hearing sucks at high frequencies, you could just use a low pass filter and not any compression to get rid of those. I can tell you without a study that 99% (excluding the deaf) can tell the difference between 22kHz and 44kHz, and at 8kHz you can't understand speech anymore, and that's still a smaller range than 96 to 44.
Here he uses a transformer to compress 44kHz audio to a lower kbps, the frequency features below and up to 44kHz are going to be affected in unpredictable ways regardless of the output sample rate, and you can hear it clear as day with shitty earphones if you compare the originals vs the compressed.
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You can use ffmpeg and test yourself. Not top secret cowtools or anything.
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Stfu nerd with you gay butt audiophile "uhhhh you can totally hear 495fps" as if we need anything more than 30
Kill ykursy
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he was wondering if he could hear 96KHz - you can't and it's easy to test with ffmpeg.
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