MPEG Audio Utility

Release: 0.24

Copy the executable files somewhere to your harddrive. Copy the file gcc30s.dll somewhere to your libpath.^[1]
Create a program object for it and modify the settings to not to close the window on exit. If you like to modify the gain of the files by this way, you should enter [options] "%*" as parameter of the program. You will be asked for additional options in every case.
If you prefer command windows, place the executable somewhere in your PATH.

usage

Simply drop an MPEG file on the program object or enter frameanalyzer filename.

command line options

/v

Print a verbose info of every (valid) frame.

/lnum

Modify gain by 1.5 · numdB. Negative values will decrease the volume.
Remember that you can overdrive the file. However not the MPEG stream is overdriven but the decoder engine will overdrive when the samples are quantized to 16 bit. So, fortunately this is reversable unless you left the domain of the gain fields, which is nearly impossible as they have a dynamic range of 380dB.

/sthres

Strip leading and trailing empty frames.
This will remove only silence. Due to the bit reservoir of MPEG Layer III files, usually a few frames with silence will remain at the beginning. thres is number of different bytes per empty frame. It defaults to 10 if omitted. If thres is negative then the gain fields of the sideinfo blocks are ignored. In this case only the entropy of the frame is taken to identify silence. You need this for FhG encoded files, where the gain fields contain nonsens for empty frames.
This option also removes the futile wave header of some files, which confuses some applications.

Notes:

1. The file gcc30s.dll is the C++ runtime of gcc 3.0. Other applications may use this too. However, if you have gcc 3.0 istalled you will already have the DLL.

ZIP file with source, OS/2 binary and this guide: Version 0.24

Suggestions, help, complaints (but not too much:-): mueller@maazl.de

Original homepage: http://www.maazl.de/project/mp3/mp3frame.html