Bring up audio
Verify aDSP is enabled
Verify that the PIL has loaded the application DSP image.
Verify sound card registration
Verify sound card registration to record and play back audio.
Verify record and playback at the driver level
Push an audio file to the device and play back.
Audio tools
Calibrate audio with QACT
Use the QACT tool to connect to a device, view files, and design and tune audio modules.
Enable diagnostic logging with QXDM
Use QXDM Professional™ to configure and filter audio logs.
Advanced audio customization
Sync and compile audio components
Extract the audio module source code and build the user space and kernel mode modules.
Custom module integration in DSP
Use the Qualcomm® Hexagon™ NPU SDK to add custom audio modules.
Connect third-party audio devices over MI2S/TDM
Use the MI2S and TDM interfaces to connect and transfer audio data to a device.
Tune audio
Calibrate offline
Change calibration files without connecting to a device.
Calibrate online
Change calibration files while in use by a device.
Tuning workflow
Follow these workflows to improve audio quality.
Cancel echo and suppress noise
Cancel the echo from the far-end and suppress the noise in the near-end audio signal.
Optimize playback quality
Improve the quality of the audio.