Audience

Intelligent Voice Processor

Using proprietary technology based on the intelligence of the human hearing system, the Audience A1010 Voice Processor provides the most powerful and robust noise suppression technology available today. Whether the noise source is in the caller's environment, or coming in over the cellular networks from the other end of the call, the Audience Voice Processor instantaneously reduces multiple noise sources, such as airport PA systems, restaurant noise, car noise, ring tones and acoustic echo, from the call. The result is vivid voice communications over mobile networks or VoIP applications, such as PC telephony and video conferencing, in places before unimagined.

Voice Processor Value

Designed around a single, purpose-built DSP, the Audience A1010 Voice Processor delivers the power of the human hearing system in a highly optimized hardware and software solution. The A1010 sets the benchmark in five critical elements of an advanced noise suppression solution.

Instantaneous Noise Suppression
Enables Clear Communication Everywhere

  • Up to 25 dB suppression of Stationary & Non-Stationary local noise
  • Up to 25 dB suppression of remote noise from caller
  • Fast convergence time of < 500 ms responds instantaneously to Non-Stationary noise sources
  • Advanced acoustic echo cancellation software enables simultaneous (full duplex) conversation comparable to PSTN calls

Vivid Voice
Delivers Clear Speech in Noisy Environments

  • Increases voice quality Mean Opinion Score (MOS) by .77 points in noisy environments
  • Easier to be understood by IVR systems in noisy environments

Efficient Platform
Works Well with Limited Space and Power Budgets

  • Compact and low-pin count package fits into even the smallest handsets
  • Adaptive power consumption maximizes battery power by shutting down the Voice Processor when not in use or needed

Ease of Integration
Designs-in Easily to all Mobile Handsets

  • Interoperates with all audio codecs and baseband platform architectures
  • Flexible dual Microphone system supports flexible configurations and handset types

Extensible Architecture
Enables Differentiated Voice Services

  • Voice Processor readily supports new voice services with software downloads
  • Supports all consumer mobile handset usage modes: close-talk (handheld), far-talk (speakerphone), and video telephony
  • Voice Equalizer - boosts incoming voice over local noise

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A1010 Block Diagram

A1010 Specifications

Processor

  • Custom low power DSP with built-in program and data memories
  • High performance voice processing architecture
  • Software selectable features via host interface

Serial Interfaces

  • Flexible host (baseband) interface: SPI or I²C Slave
  • Optional boot ROM with SPI Interface
  • 5 programmable general purpose I/Os

Audio Interfaces

  • Analog (2 channel in/ 1 channel out)
  • Digital bi-directional PCM audio (2 channels)

Clock and Power Management

  • Clock input: 12MHz to 26MHz
  • 1.8V~3.3V I/O
  • Built-in 1.2V LDOs for analog and digital core operation
  • Two power modes: active and sleep

Package

  • 48-pin (2.7mm x 3.5mm) WLCSP
  • 0.4mm bump pitch
  • RoHS compliant

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