mp3PRO
An enhanced MP3 format from Coding Technologies (www.codingtechnologies.com) that reduces an MP3 file to half its size while retaining the same sound quality. It uses Spectral Band Replication (SBR), a proprietary Coding Technologies' technique that halves the sampling rate, but encodes the missing higher frequencies at a rate of 1.5 Kbps and stores them in the auxiliary data fields of the MPEG format. See aacPlus and MP3.
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| Spectral Band Replication (SBR) |
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| SBR encodes the high frequencies and stores them in the auxiliary data fields. The decoder restores the high frequencies from the SBR data. |
| (audio, compression) | MP3Pro - An extention of MP3 using SBR,
targetting data rates of 64-96 kbps. | |