[Flac-dev] A-law and mu-law

Erik de Castro Lopo mle+la at mega-nerd.com
Sun Nov 20 22:37:40 PST 2011

Giulio Paci wrote:

> 	thank you for your answer. So the problem would be suboptimal
> compression due to suboptimal assumption about the input signal, right?
> What I do not understand is how the format of a FLAC format would be
> affected by supporting A-law and mu-law files as input (and thus
> output).

FLAC is in maintenance mode. Good luck getting new features.

> For my needs converting them to 16bit linear PCM is an option, but I
> will need to keep track of the original format outside the file, which
> is something that I would prefer to avoid. I would prefer to avoid
> having multiple file format around (I mean containers format here) if
> possible. Do you know of any container that supports both flac and *-law
> streams?

Apple's CAF format supports both ALAC (Apple's lossless audio format, not

I am currently in the process of adding CAF/ALAC support to libsndfile:


Erik de Castro Lopo

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