Ubuntu
soundkonverter package

soundKonverter: Wav to MP3 with -12dB adjust

Asked by Glen Ellis

OS: Ubuntu 10.04
App: soundKonverter
Input: Wav PCM 16bit.
Output Desired: MP3 at 128 with -12dB adjust .
Note: Have many files to convert volume down. Will burn to CD.
Question:
The app has a 'replay gain' option, but does not appear to provide the required function.
I have been loading WAV into Audacity, reducing amplitude by -dB, then exporting each with new filename.
I would like to do this with a group of files, using an app such as soundKonverter.

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Daniel Faust
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Best Daniel Faust (hessijames) said : 		#1

I don't know if understand you right, but if you wish to actually lower the volume of the files in order to burn them to a cd, then this is not possible with soundkonverter. soundkonverter uses replaygain, which only calculates the volume of a file and saves the difference to a standard volume to the file's meta data. So the actual volume of the file is not changed in order to avoid quality loss. audio players can then read the volume difference in order to dynamically adjust the playback volume.
if you wish to permanently change the volume of .wav files there is a program called normalize.

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Glen Ellis (glene77is) said : 		#2

Information is Good.
Exactly what I can utilize.
Linux is proving to a very interesting involvement.

Am not trying to "normalize" as it works on 'peak' levels.
I am adjusting gain according to the power-to-ear ('body' or "RMS" power) of the music.
But I will investigate the 'normalize' program per your suggestion.

Problem was that my Radio/Stereo hardware is used for background music, had inadequate control of volume at a low level.
Therefore, I have been preparing each track/album in MP3 at -12dB.
Thus the gain knob could be turned 'higher' for more control at the low 'background' levels which I listen to.

My method will probably continue to be making adjustments in Audacity as I work each album.
Then save results to
(1) WAV (modified permanent),
(2) normal amplitude MP3 (for iPOD),
(3) low amplitude MP3 (for burn-2-CD to background radio/stereo).

Question resolved.