Newport Beach-based Conexant Systems has launched a pair of news chip targeted for the audio market, the firm said today. Conexant said its new line of speakers-on-a-chip systems are targeted at speaker-enabled products such as intercom systems, door phones, and unified communications systems. The new CX20662 and CX20663 devices include digital signal processing technology, echo-cancellation, noise reduction, and other either mono or stereo operations.