: To perform "Online Tuning," the PC running QACT must connect to the target hardware. This is typically done by selecting the appropriate processor (e.g., Proc 0) within the tool's interface.
For manufacturers of everything from wearables to automotive systems, QACT reduces the cost and time of development by allowing "off-target" design that easily migrates to "on-target" hardware. It supports high-fidelity audio standards and advanced features like Qualcomm Aqstic™ and cVc™ noise cancellation , ensuring premium sound quality across diverse environments. Qualcomm® Audio Calibration Tool | Qualcomm Developer
For multi-microphone setups, QACT helps balance gains and phase alignments, which is essential for beamforming algorithms and directional noise suppression. qualcomm audio calibration tool
Removing speaker playback sound from the microphone feed.
At the heart of the audio chain for millions of Android devices lies the Qualcomm Audio Calibration Tool (QACT). It is the bridge between the raw physics of a speaker driver and the polished, high-fidelity sound the consumer expects. : To perform "Online Tuning," the PC running
: Engineers use the tool to design new end-to-end audio use cases or modify existing ones, such as switching between speaker and microphone configurations.
: A modular framework running on the Hexagon™ DSP that executes the actual audio processing modules. At the heart of the audio chain for
Using the baseline measurements, engineers target problematic frequencies. For example, if a smartphone chassis naturally resonates and distorts at 1kHz, the engineer uses QACT’s parametric equalizer to create a narrow notch filter at 1kHz, smoothing out the response curve. Step 4: Speaker Protection Calibration (Smart Amp)
In automotive designs, QACT handles multi-zone audio tuning, cabin equalization, and in-car communication systems, managing complex routing paths across large vehicle cabins. The QACT Workflow: From Hardware to Final Product
Visual interfaces to adjust multi-band parametric equalizers (PEQ).
“Ever wondered why two phones with the same chip sound different? It’s all in the calibration. Here’s how engineers use Qualcomm’s tool to shape bass response and prevent speaker blowout.” (Show GUI slider moving + waveform change)