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Soft module lets phones add in-channel music

Posted: 16 Mar 2006 ?? ?Print Version ?Bookmark and Share

Keywords:loring wirbel? OCT6100 telephony processor? octasic? EjetCom? colorful calling?

Octasic Inc.'s work with a China-based developer of voice-server applications has led to a software module for its OCT6100 telephony processor that it terms "colorful calling." The module supports the addition of in-channel music for entertainment and karaoke applications, with the processor suppressing noise and preserving the integrity of the voice signal.

In-channel allows music to be compressed and carried in the voiceband channel without interfering with voice quality. Frederic Bourget, director of product management for Montreal-based Octasic, said Asian OEMs expect in-channel music to have a market impact comparable to those of personalized ringtones and music-based callbacks. While hold music can be implemented in flash-memory coprocessors, in-channel music requires careful signal management.

Chinese developer "EjetCom came to us with a series of features they wanted to be able to implement without adding more hardware," Bourget said. That required the OCT6100 processor to handle sound effects without affecting echo cancellation, dual-tone multifrequency functions or other call-processing tasks.

The agreement with EjetCom allows Octasic to offer the resultant algorithms to the open market. The algorithms will be available as modular adjuncts to the voice-quality enhancement features already present in the OCT6100 silicon.

- Loring Wirbel
EE Times

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