ytmdl outputs lower quality than yt-dlp
manstie opened this issue · 2 comments
Bug report
Version Info
- ytmdl version:
2023.2.28 - yt-dlp version:
2023.2.17
How Ytmdl was installed?
Windows - pip
Description
Using the m4a format option produces lower quality (reduced frequency range) than opus and mp3. The ideal range is up to 20khz.
probe of m4a:
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '.\test m4a.m4a':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
encoder : Lavf60.4.100
Duration: 00:05:00.71, start: 0.000000, bitrate: 129 kb/s
Stream #0:0[0x1](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
Metadata:
handler_name : ISO Media file produced by Google Inc.
vendor_id : [0][0][0][0]
probe of mp3:
Input #0, mp3, from '.\test mp3.mp3':
Metadata:
encoder : Lavf60.4.100
Duration: 00:05:00.75, start: 0.025057, bitrate: 320 kb/s
Stream #0:0: Audio: mp3, 44100 Hz, stereo, fltp, 320 kb/s
Metadata:
encoder : Lavc60.5.
Using yt-dlp does not have this affliction with the following parameters (albeit a much larger filesize):
yt-dlp --extract-audio --audio-format m4a [URL]
Opus files are also lower quality:
probe from ytmdl
Input #0, ogg, from '.\song.opus':
Duration: 00:04:33.02, start: 0.007500, bitrate: 98 kb/s
Stream #0:0: Audio: opus, 48000 Hz, stereo, fltp
probe from yt-dlp
Input #0, ogg, from '.\song.opus':
Duration: 00:04:33.03, start: 0.007500, bitrate: 127 kb/s
Stream #0:0(eng): Audio: opus, 48000 Hz, stereo, fltp
@manstie Thanks for opening this issue, that's some nice insights. I will have to look into the current implementation to see how we can improve this. The difference between yt-dlp and ytmdl files are that we do the conversion separately (though both uses ffmpeg under the hood).
This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs for another 7 days. Thank you for your contributions.