CD-DVD Tutorials - Herong's Tutorial Examples - Version 2.21, by Dr. Herong Yang
Compressing WAV Files with MP3 Encoding
This section describes a tutorial on how to compress WAV files with MP3 (MPEG Layer-3) encoding.
We know that WAV file format can not only store audio tracks uncompressed with PCM (Pulse-Code Modulation) encoding, but also compressed audio tracks with a codec (Coder and Decoder), like MP3 (MPEG Layer-3).
If you want to compress an uncompressed WAV file with a codec, you can use Windows Sound Recorder. Here is what I did to compress one of my WAV file ripped from an audio CD.
1. Start Sound Recorder.
2. Click menu File > Open to load the WAV file C:\temp\WAV\02-Track 2.wav.
3. Click menu File > Properties. The Properties dialog box shows up with the following information:
Length: 221:37 sec. Data Size: 39050256 bytes Audio Format: PCM 44.100 KHz, 16 Bit, Stereo
4. Click Convert Now button in the Format Conversion section. The Sound Selection dialog box shows up. Change settings to:
Format: MPEG Layer-3 Attributes: 256 kBit/s, 44,100
5. Click the OK button to start the compression process.
The Converting progress dialog box shows up.
6. When compression is done, the Properties dialog box shows new properties:
Length: 221:37 sec. Data Size: 7077460 bytes Audio Format: MPEG Layer-3 256 kBit/s, 44,100 Hz, Stereo
7. Click the OK button to close the Properties dialog box.
8. Click File > Save As to save the compressed WAV file to C:\temp\WAV\02-Track 2-MP3.wav
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