[LAU] Record levels lower in Alsa than Jack
rosegardener at freeode.co.uk
Tue Nov 10 13:56:17 CET 2020
On Mon, 9 Nov 2020 17:11:22 -0600 "Chris Caudle" wrote:
> On Sat, November 7, 2020 1:04 am, John Murphy wrote:
> > On Fri, 6 Nov 2020 15:19:22 -0600 "Chris Caudle" wrote:
> > Signal Max : 0.584686 (-4.66 dB) 32767 (-0.00 dB)
> > That last 'Signal Max' comparison does seem to confirm that
> > normalisation has occurred.
> That is different than the results on my system, even though I used the
> same SoX command line you showed before. I don't know if that implies
> some difference between versions of SoX, or different compile time
> options, or different versions of sndfile-lib installed on my system
> (Fedora 33 just for info).
Not vastly different here (Mint 19.3)
> I am a bit surprised that change gain would be a default behavior,
> definitely not what I would expect from just attempting to change the file
Me too. Hence my misconception in the thread title. Happy to know what
was happening and I'll probably use normalisation anyway, from now on.
I'm not sure how I would find SFC_GET_NORM_FLOAT which has a page at:
Could that setting be making the difference?
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