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). > > sox-14.4.2.0-29.fc33.x86_64 sox 14.4.2-3ubuntu0.18.04.1 > libsndfile-1.0.28-13.fc33.x86_64 libsndfile 1.0.28-4ubuntu0.18.04.1 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 > format. 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: http://www.mega-nerd.com/libsndfile/command.html#SFC_GET_NORM_FLOAT Could that setting be making the difference? -- John. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
