Hydrogenaudio Forums

Lossy Audio Compression => AAC => Topic started by: gusnv on 2018-06-19 17:41:34

Title: Lossless AAC
Post by: gusnv on 2018-06-19 17:41:34
First time posting, long time reader.

Hello everyone, I was wondering if there was any way to encode a lossless AAC (MPEG-4 SLS), I've searched for encoders but no luck.

I need to achieve three things, 1) Highest quality possible (space not really an issue), 2) MP3/AAC-like compatibility (files will be played in hardware that handles AAC at most, such as car stereo/TV/receiver, etc.) and 3) one file per song (no AAC+FLAC).

Most of my files are AAC@512, virtually transparent, identical to source (at least to my ears), but at such high bitrates I would rather go lossless.

I have decent audio equipment (home, car, headphones) so that's why quality and compaatibility are equally important. If there is no practical way to encode to MPEG-4 SLS/HD-AAC, what would you recommend?

Thanks!
Title: Re: Lossless AAC
Post by: spoon on 2018-06-19 18:15:13
Are you certain your player will play AAC SLS, it is not a popular format? Apple Lossless is the defacto standard for m4a.
Title: Re: Lossless AAC
Post by: gusnv on 2018-06-19 18:46:46
I understand there is some kind of backwards compatibility, but I'm not sure if current hardware (car radio) will play the lossless or the lossy layer (or neither). Basically I just need the AAC encoding for compatibility purposes.

Edit: Some of my devices don't work with Apple lossless.
Title: Re: Lossless AAC
Post by: saratoga on 2018-06-19 19:21:25
I understand there is some kind of backwards compatibility, but I'm not sure if current hardware (car radio) will play the lossless or the lossy layer (or neither).

Definitely not both, and probably neither.  AAC-SLS is a dead format, nothing will support it. 
Title: Re: Lossless AAC
Post by: gusnv on 2018-06-19 23:44:28
Then I guess I'll stick with AAC@512 until FLAC gets widely supported.

Thanks guys!
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