The A1024 Voice Processor from Audience incorporates a suite of voice quality enhancements that ensure that mobile-phone users can hear and be heard in noisy environments. The chip connects directly to any baseband processor via standard interfaces and occupies less than 25 mm2 of board space. Multiple baseband reference designs are available to support customer design and development efforts.

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The processor’s instantaneous transmit noise suppression provides consistent and reliable noise suppression of up to 30 dB. As an example, this level is enough to remove the noise of coffee grinders, blenders, background music, and conversation from a busy coffee shop. The IC also supplies up to 18 dB of receive non-stationary and stationary noise suppression from the far end, which allows users to receive calls from noisy environments.

The company’s superior AEC function lets mobile phone users have hands-free voice conversations or video telephony without double-talk or echo, even in noisy conditions. The full-duplex type 1 AEC meets ITU-T P.340 specifications. Additionally, a voice equalization feature boosts and equalizes the incoming voice based on the level and for the duration of local background noise as the user moves through different environments.

The A1024 Voice Processor comes in a 40-pin WLCSP with 0.5-mm ball pitch. Samples are available now at prices of $5.00 to $7.00.

The A1024 Voice Processor from Audience incorporates a suite of voice quality enhancements that ensure that mobile-phone users can hear and be heard in noisy environments.

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