Today in "ffmpeg's AAC encoder is still a embarrassment and nobody should ever use it": OBS on Windows using it, at 320kbps, makes music sound like a low bitrate mp3 (metallic hi-hats, etc). No problem with a custom OBS build on Gentoo with libfdk_aac enabled, at *160* kbps.
This was a live streaming test, so I don't have a recording. I need to investigate exactly what OBS on Windows is doing to replicate the settings standalone, will check tomorrow.
-
-
Here's a quick transcode test of the same source (original is a 320k MP3), subtracted from the original. All at 320k. Re-MP3ing with LAME just adds some noise; fdk does a worse job but still ~uniform; ffmpeg completely murders the high-end with whistling. https://mrcn.st/t/lame_vs_fdk_vs_ffmpeg_delta.wav …
-
Also it seems the ffmpeg aac encode has a 0.5dB gain reduction for some reason. The original song leaks through because of that, bumping up by 0.5dB fixes it.
- Show replies
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.