Codec Central - MPEG layer III audio



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MPEG layer III audio

General Information

Overview
The MPEG format includes a range of options for audio. Of these, layer III is currently the most optimal choice for low data rate applications. MPEG layer III audio is a commonly used format for music files stored on the Internet.

You can download a 30 second example (44kHz stereo: 16KBytes/sec=128kbps), "New Phase" from Hip Clip Music volume 1. To hear this clip, you will need an MPEG layer III player. Some options include MacAmp for MacOS, or WinPlay for Windows.

Architectures Supported

NetShow

Pros, Cons & Tips

Pros

Very good quality for music
Relatively low data rates are useful for making music available on Web sites.

Cons

No single standard player.
MPEG is a patented technology. There may be licensing fees for using MPEG layer III to distribute audio files. There is presently some uncertainly regarding this.

Ideal source material	Music
Encoder requirements	Available for most platforms (typically, Pentium or PowerPC required).
Decoder requirements	Available for most platforms (typically, Pentium or PowerPC required).
Encoder availability	A range of commercial and freeware encoders are available.
Decoder availability	Free decoders available.
Manufacturer	Many

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