Qualcomm Audio Calibration Tool [2021] -

Engineers can now interact with different nodes in the graph to modify settings:

ACT is not a single-purpose tool; it is a suite for acoustic system design. Its primary functions cover every aspect of the audio chain.

A high-level brief explaining how to use QACT for echo cancellation, noise suppression, and speaker protection.

Using QACT involves a structured approach to ensure the best possible audio output. 1. Initial Setup and Installation qualcomm audio calibration tool

: QACT must connect through QPST Configuration to establish a communication port with the device.

QACT is flexible, allowing for the integration of custom tuning tools or 3rd-party modules. This makes it an ideal environment for specialized acoustic engineering firms to integrate their proprietary algorithms alongside Qualcomm's solutions. 5. Diff/Merge Workflows

Real-time tuning drastically reduces the development and prototyping time.

: Features like diff/merge workflows and customization for 3rd party modules help streamline the development process for OEMs and audio engineers. User Experience & Expert Insights Register for an account on the Qualcomm CreatePoint portal

: The tool is highly praised for its precision in adjusting signal curves and creating EQ profiles for specific hardware like Bluetooth modules (e.g., FSC-BT1026C).

For fine-tuning, engineers connect a physical development board (like an RB3 Gen 2 or a smartphone) via QPST. Inside QACT, they click "Connect To Device". The software then connects to the DSP. The engineer plays a test tone or music, and adjusts the DRC or EQ sliders. On newer AudioReach versions, the audio changes instantly, allowing the engineer to listen to the result in real-time.

Previously, QACT was strictly a Windows-only application, which often forced Linux-based development teams to rely on virtual machines. The new AudioReach toolchain is being designed to be cross-platform, breaking down traditional development silos.

Often, engineers start with the ACDB file stored on their hard drive. They open the file in QACT (Open ACDB On Disk), navigate to the target device (like SPKR_PHONE_SPKR_MONO for a built-in speaker), and modify the parameters. This allows for safe experimentation without a physical device attached. A high-level brief explaining how to use QACT

Modern smartphones are complex audio beasts. A single device has multiple microphones (top, bottom, back) and speakers (earpiece, main loudspeaker). ACT handles the .

Test the modifications using both objective metrics (Total Harmonic Distortion, Frequency Response sweeps) and subjective listening tests across various genres of music and speech. Step 5: Freezing the Calibration

Device audio profiles are stored in binary files called the Audio Calibration Database ( .acdb ). Upon connection, QACT reads these files from the device to populate its menus with the device's factory-default tuning parameters. Step 3: Interactive Tuning