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Recent Posts
MP3 / Re: Low bitrate MP3 (+ unsupported bitrates)
Last post by Klymins -
Now i'm tried with libopus and it is still terrifying. MP3 is bad for 8kbps too, but looks like opus is worse for music. I guess it can be better for voice. AAC, on the other hand, sounds like a bit better than MP3. I'm going to upload a first few seconds of my test files.
MP3 / Re: Low bitrate MP3 (+ unsupported bitrates)
Last post by maikmerten -
Now i'm tried opus and it sounds horrible for 16kbps and 8kbps compared to MP3. Also it does not support 11025Hz, 22050Hz, and 44100Hz while these are my target sampling rates.

That's very unexpected. Opus should do *much* better than MP3 at such exceedingly low bitrates. Do you have an example file to toy around with?

Edit: If you happen to encode with ffmpeg: Don't use the interal Opus encoder, use libopus.

Edit2: One can encode non-standard bitrates in MP3 in "free format" mode. For instance "lame -b 18 --freeformat music.wav freeformat.mp3". This is, however, non-standard and needs a supporting decoder. This throws away most of the compatibility benefit MP3 has.

Edit3: Also, of course, one can do ABR-encoding with a bitrate target of 18 or 20 kbps.
3rd Party Plugins - (fb2k) / Best way to equalize according to a curve
Last post by widemediaphotography -
I'm trying to improve the response of the He1000 Stealth headphones with foobar. I have already exhausted the possibilities of the default equalizer present in fb2K, but I would like to connect the curve more precisely, for example by checking the attached graph (blue line) I should increase the 1kHz-3Hkz range by a few decibels, and also the range 20-90hz.
 What really working solutions currently exist?

Thank you
FLAC / Re: FLAC - stored main chunk length differs from written length
Last post by bryant -
And so, the validity in Reply 50 of that test file ... with that interpretation?

(BTW, I am not much fan of overmoderation, but @korth as mod: This thread has become more about peculiar WAVE files than a wishlist on one particular encoder/decoder. Or maybe wishful thinking on my part. Maybe it does no harm staying in this subforum.)
Yes, the header is valid with that interpretation. However, the audio does not have the appropriate NULL padding (which would be half the bytes) and so you get an error message, which is more informative than "unsupported WAV format".

I agree that this thread has become about lossless compressors' handling of non-conforming WAV files in general, not just FLAC's handling of one particular non-conforming file. Perhaps a rename and move to General Audio or Lossless / Other Codecs would do?