Latest Toshiba Audio Codec Preserves Voice Quality on Mobile Devices

Toshiba (News - Alert) America Electronic Components Inc recently unveiled its single microphone offering, the TC94B24WBG audio codec. The latest solution which features noise cancellation and echo cancellation offers best-in-class voice quality on smartphones and moveable devices. OEMs can now tackle issues related to microphone audio processing in an improved manner using the flexibility, performance, and economic advantages offered by the TC94B24WBG.

The high-performance, general purpose programmable DSP in the TC94B24WBG processes the NC/EC algorithms and consumes low power. It also allows customers to deploy their individual software in the audio codec in order to distinguish their products from others.

The TC94B24WBG comes complete with a two channel Analog Electret Condenser Microphone interface, a four channel Digital Electret Condenser Microphone interface, a battery saving class-G headphone amplifier, ear-speaker amplifier, asynchronous sampling rate converter, four channel I2S interface, I2C/SPI interface and audio post processing. All the audio inputs and outputs needed by mobile and telephony products are offered by the audio codec.

In a statement, Andrew Burt, VP, Analog and Imaging Business Unit, System LSI Group at TAEC said, "Toshiba once again delivers an innovative device that gives OEMs distinct advantages relative to price, performance and quality as they roll out next-generation mobile devices. Many companies have attempted single microphone Noise Cancellation/Echo Cancellation designs, but compromised on the performance. Toshiba believes its one microphone solution for audio processing delivers true voice sound while mindful of performance, area and design concerns associated with smaller smartphones and tablets. The end result is that consumers will appreciate the voice quality enabled by the new Toshiba audio codec on their hand-held devices."

Additionally, a one microphone algorithm is utilized to accomplish superior noise cancellation on the TC94B24WBG. A time-domain echo cancelling adaptive filter and frequency-domain echo suppression are found within the exceptional echo cancellation algorithm as well..

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