[sdiy] uLaw DACs in the modern era?

[O Gillet]

On a mac: brew install sox (yes, I assume you have brew installed...)

Then:
sox source.wav -e mu-law source-mulaw.wav
sox source-mulaw.wav -e signed-integer source-linear.wav


On Wed, May 23, 2018 at 4:11 PM Tom Wiltshire <tom at electricdruid.net> wrote:

> Thanks Richie, but unfortunately I don’t have a machine that will run it.
Got Macs and Androids, but no Win boxes currently. My old “electronics PC”
fell down the stairs in a hideous accident some time ago…

> Pity, because I was looking at SpinASM recently too, and that’s Win only
as well.

> ==================
>         Electric Druid
> Synth & Stompbox DIY
> ==================

> > On 23 May 2018, at 13:52, rburnett at richieburnett.co.uk wrote:
> >
> > Tom, do you know that you can easily assess the effect of mu-law or
a-law companding with only a WAV editor like Goldwave?
> >
> > Just load up a sound, then save a copy to disc as a WAV file with the
attributes set to either mu-law or a-law.  Then open this new file and you
will see (and hear) the effects of the non-linear quantisation.  You can do
an A/B comparison.  To my ears the quantisation just makes things sound
slightly fuzzy and indistinct.
> >
> > -Richie,


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