MP3 Research and Simulation on PCs

• Overview

• SigC54xx MP3 Real-Time System

• MP3 in MATLAB

• Return to Main MP3 Page

Encode tab in Signalogic Win9x/WinME/WinXP MP3 Encode/Decode program. Click to see actual size view. Decode tab in Signalogic Win9x/WinME/WinXP MP3 Encode/Decode program. Click to see actual size view. About tab in Signalogic Win9x/WinME/WinXP MP3 Encode/Decode program. Click to see actual size view. "Reader Tool" tab in Signalogic Win9x/WinME/WinXP MP3 Encode/Decode program. Click to see actual size view.

To evaluate, analyze, and explore the standard "dist10" ISO source code for MPEG audio 1/2 layers 1-3, Signalogic has compiled the ISO source code, fixed several bugs, added .wav file support and improved command-line options, and built a sophisticated, research-oriented Win9x/WinXP visual user-interface.

Having available in our labs a reliable, easy-to-use, and flexible encoder/decoder tool for Win PCs gives Signalogic researchers a powerful evaluation, analysis, and test tool. For example, MP3 tests can be conducted rapidly and results compared to those of other platforms, for example between MATLAB simulations and Texas Instruments DSP device real-time output.

Some useful features of the Signalogic research / evaluation MP3 Codec:

• supports all specifiable options in MPEG 1 and 2, layer 1-3

• supports .wav, .tim, .aiff, file formats, and PCM format (raw binary, no header)

• pre-opens selected .wav (or other format) and sets default values as appropriate (e.g. sampling rate, number of channels)

• user-override format options

• includes a "Reader Tool" that displays MPEG layer 1-3 frame header information for encoded bitstream files

• "profile" save/restore; e.g. "128kbps_layer3_model2_nodeemphasis". Extremely useful for running tests on a series of waveform files for subsequent comparison

• waveform "auto list" file option, to automatically run encode/decode on a series of files

• automatic save of session / configuration information

More Information

DSP Info

For more information about the GUI, created in Visual Basic 6.0 by programming wizard Hanzi Yang, send e-mail to:

DSP Info

The Signalogic MP3 codec program is installed as a self-extracting .exe file which will create a "sig_mp3" subdir on your PC and install all necessary files on that subdir, plus some redistributable Microsoft DLL and OCX files on your \windows\system subdir.

MP3 Encoder/Decoder Command-Line Options

Download MP3 Encoder/Decoder program