WCD9341 and Qualcomm Aqstic are products of Qualcomm Technologies, Inc. and/or its subsidiaries.


Qualcomm Aqstic™ Audio Codec

The Qualcomm Aqstic audio codec (WCD9341) supports popular voice UIs is designed to allow devices to have always-on and always-listening capabilities at both very low power and high-resolution playback standards. WCD9341 has an integrated audio codec DSP to support two voice UI wake-up words simultaneously and has an integrated DAC (digital-to-analog converter) that supports up to native Direct-Stream Digital (DSD) Hi-Fi audio playback. The DAC on the Qualcomm Aqstic codec has ultra-low Total Harmonic Distortion plus Noise (THD+N), which means no additional noise or signal is added for the most authentic sound reproduction possible.

WCD9341 Specs

General Audio

Voice Services Support

  • Amazon Alexa Voice Service
  • Microsoft Cortana
  • Baidu DuerOS
  • Google Assistant

Audio Playback

Playback Dynamic Range

  • 130dB

Total Harmonic Distortion + Noise (THD+N), Playback

  • -109dB

Dual Oscillator Support, Playback

  • 44.1kHz
  • 48kHz

PCM, Playback

  • Up to 384kHz/32bit

Native DSD support

  • DSD64
  • DSD128

Additional Playback Features

  • DoP Support (DSD over PCM)
  • DXD support

Audio Recording

Recording Dynamic range

  • 109dB

Sampling, Record

  • Up to 192kHz/24bit

Total Harmonic Distortion + Noise (THD+N), Record

  • -103dB

Power Consumption

Audio playback

  • 34mW for high performance mode
  • 6mW low power mode

Low power voice activation

  • 0.65mA