Effective October 1, 2012, QUALCOMM Incorporated completed a corporate reorganization in which the assets of certain of its businesses and groups, as well as the stock of certain of its direct and indirect subsidiaries, were contributed to Qualcomm Technologies, Inc. (QTI), a wholly-owned subsidiary of QUALCOMM Incorporated. Learn more about these changes

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PureVoice®, a product of Qualcomm Technologies, Inc., offers a range of superior voice and audio enhancement software for CDMA products. Optimized for Qualcomm's MSM® device platforms, the PureVoice product suite consists of voice recording technology, voice recognition software and audio automatic gain control.

PureVoice Voice Recording technology provides landline-quality voice transmission that operates at variable encoding rates in order to take advantage of natural pauses in human speech. The high-quality, high-compression solution is useful for store-and-forward as well as streaming applications, and the technology accommodates erasures (dropped data), resulting in better performance on real-time applications.

PureVoice Audio Automatic Gain Control (AGC) provides the highest quality stereo enhancement software available for Qualcomm's MSM platforms, enabling CDMA handset manufacturers a simple "drop-in" solution for enhancing the sound quality and usability of their phones. PureVoice AGC is most effective in adverse noise conditions where background noise would otherwise prevent intelligible phone conversations.


  • Provides CDMA manufacturers with complete integrated software solutions that require no additional hardware
  • PureVoice Voice Recording technology supports voice memo and answering machine applications
  • An integrated, optimized solution for OEMs
  • PureVoice Audio Automatic Gain Control allows for more intelligible CDMA handsets, especially in adverse background noise conditions

Integrated noise reduction and echo cancellation technologies right into Qualcomm chipsets

  • Frees manufacturers from costly and cumbersome designs
  • Optimized solution enables OEMs to offer exceptional voice quality in small, low-power, high-performance devices in a cost-effective manner

Gives voice recognition a boost

  • The voice enhancing software enabled by Fluence™ offers significant suppression of both stationary and non-stationary background noise
  • Improved voice activity detection and speech recognition
  • Users will experience considerable improvement when using voice recognition and other voice-related applications

PureVoice Downloads

PureVoice Downloads You can download the player-recorder from the sites listed below. The file includes both the PureVoice® Player-Recorder plug-in for Eudora® software, and the PureVoice Player-Recorder software for all e-mail applications.