KANATA, Ontario Mitel Semiconductor is offering an acoustic echo canceler that it says is a complete speaker-phone solution. Mitel claims the MT9315 provides several advantages over acoustic echo cancelers using standard digital signal processors.
The device offers 112-ms acoustic echo cancellation and 16-ms line-echo cancellation, suited for use with plain old telephone (POTS) service. It can handle up to 0-dB acoustic echo-return loss and supplies reliable echo cancellation from the beginning of a phone call, eliminating the need for a "white-noise training" mechanism.
The device is said to provide a quick reconvergence time, so it tracks changing echo environments rapidly. Pricing begins at close to $10 per unit.
Call (613) 592-2122, ext. 6870
Issue of January 4, 1999; EETInfo No. 604