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by maybe_pablo 748 days ago
I do something similar to OP but do the final transcoding to HE-AAC VBR 64kbps (ffmpeg params `-c:a aac_at -profile:a 4 -b:a 64k -aac_at_mode 2`). The tracks sound more than acceptable to me and this way I can easily store my entire collection (+80k tracks) into my iPhone. Modern codecs are wonderfully efficient.
1 comments
sandreas 748 days ago
Thanks for sharing your params... This is nice, maybe that's something I should consider. I need to test wether my car supports aac. My ipod does and kitchen radio is not that important.

You should See my audio books workflow with m4b-tool and audiobookshelf, which is probably even better ;)

Did you know ffmpeg has a non free Encoder (libfdk_AAC) thats sounds slightly better?

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maybe_pablo 747 days ago
No problem, please do share any interesting part of your workflow if you have the time!

> Did you know ffmpeg has a non free Encoder (libfdk_AAC) thats sounds slightly better?

Ah yes. I'm not sure it sounds better than the audiotoolbox encoder though, at least it is reported that it doesn't here: https://trac.ffmpeg.org/wiki/Encode/AAC#aac_at although the hydrogenaudio source of this claim seems to be down, is still readable on the web archive at https://web.archive.org/web/20240407200855/https://wiki.hydr...

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sandreas 747 days ago
I'm desperately trying to publish a blog article about this topic for half a year now :-)

Maybe I'll never get it done, there is so much to cover... from

- what I know about iPods

- why modern Android Phones still can't compete in my opinion

- why the Apple Earpods can't change volume on Android devices and vice versa (https://tinymicros.com/wiki/Apple_iPod_Remote_Protocol)

- how you can harvest Earpods remote to create a durable good sounding headset using the right pinout

- that OneMore seems to have implemented the Apple Remote Protocol without anyone noticing

- why I wrote my own command line cross platform audio tagger (https://github.com/sandreas/tone)

- why I self-host my audio stuff

- and why nobody seems to care about an audio everything solution (music, audio books, podcasts, etc.)

So, let's hope I'll find the time :-)

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