[LAU] Record levels lower in Alsa than Jack

John Murphy rosegardener at freeode.co.uk
Fri Nov 6 16:06:57 CET 2020

On Fri, 6 Nov 2020 15:07:43 +0100 Fons Adriaensen <fons at linuxaudio.org> wrote:
> On Fri, Nov 06, 2020 at 01:22:42PM +0000, John Murphy wrote:
> > Then sox stat shows min/max amplitude +/- 0.5 for the wav capture and
> > +/- 0.9 for the wav converted from w64. The converted file looks good
> > in my editor too.  
> Still doesn't explain the difference, unless I'm missing something...
There's a loss of precision in the conversion process. Both the original
recordings show 25 bit precision and the file sizes are the same (3.8MB).

The converted file is only 16 bit and is 1.9MB. It sounds (and looks)
louder. I doubt I could tell any loss of quality. Not explaining it.
Just providing some facts. :)

Thanks again,

More information about the Linux-audio-user mailing list