sndscale

Usage: sndscale inputFile outputFile

Parameters

An input and an output file name, followed by one or more gain values. The file name '-' indicates stdin for the input file and stdout for the output file.

Function

Copies the input file to the output file, applying a gain that causes the maximum magnitude sample in the output file to be just slightly less than the maximum magnitude possible, given the sample size.

[In my implementation, I used 95% of the maximum possible value. Exactly what you use isn't terribly important.]

Note that a single gain is applied to all channels.

Output File Format

#Channels	Same as input file
Frequency	Same as input file
Sample size	32-bits