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How can I convert an album that is FLAC (high quality lossless) into an MP4 specifically without losing quality or is it even possible? (sopuli.xyz)

submitted 2 weeks ago* (last edited 2 weeks ago) by sopularity_fax@sopuli.xyz to c/nostupidquestions@lemmy.ca

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I have an album thats a bit more than 200MB, converted to just an audio only M4a or MP4 its still under 80MB

Is that 120+MB all chaff or is there another way to prevent losing all muh damn wheat

CONSTRAINT/NON-CONSTRAINTS

FILE SIZE DOES NOT MATTER AT ALL TO ME. JUST TO BE CLEAR

MUST BE AN MP4 "video" file. I get that MP4 is a container or whatever but that is a hard constraint—Please respect that

M4A/AAC are not acceptable. It must be within the container that is MP4, non-negotiable

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[–] brucethemoose@lemmy.world 7 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Again, putting on pedantic hat:

...Are you sure it only supports mp4? webm is a video container, too.
MP4, being a container (not a codec), may or may not support various codecs inside it: https://en.wikipedia.org/wiki/MP4_file_format
Opus was apparently added to the mp4 spec in 2018.

I'm getting what you're really asking though.

Is that 120+MB all chaff or is there another way to prevent losing all muh damn wheat

You converted files from flac to "MP4" via some app, but what it actually did is convert them to AAC and just didn't tell you any of those details.

What you want to do, is convert them all to MP4 that way, but specify the AAC bitrate. I suggest 320K. Or 384K if you are not short on space for the music.

If you want to be super efficient, you can try putting opus inside MP4, or just see if your app will play a webm.

[–] sopularity_fax@sopuli.xyz 3 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

I will definitely try a .webm just to test later but i strongly suspect it wont do it

My procees was taking the flac and importing them into a video editing suite and for the audio quality i chose the hughest which is 48kHz and setting all the videostuff to lowest quality because i only care about the audio

[–] brucethemoose@lemmy.world 5 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

48khz (not K, which means kilobytes/s, kilohertz which is the sampling rate) means you're resampling. This actually drops the audio quality.

Okay, just download this: https://github.com/edneyosf/Edconv

(Link to the exe): https://github.com/edneyosf/Edconv/releases/download/1.4.3/Edconv-1.4.3-x86_64.exe

Disable video, set your audio stuff and set the file name to end in mp4. Just tested, and it works on a flac file for me.

[–] sopularity_fax@sopuli.xyz 6 points 2 weeks ago

Thank you, im very uninformed about all of this. Will try later thanks!