How to change the QCC303x series Bluetooth EQ settings

November 1, 2023

Qualcomm QCC303x series Bluetooth chips support USB programming. We have used them on our new released Bluetooth audio amplifier boards. No need extra programmer and the expensive programming cable. Just use a micro USB cable. User can change the Bluetooth settings easily. This is a tutorial to teach you how to change the audio amplifier board Bluetooth EQ settings.

Hardware and Software required:

micro USB cable
Download QCC_USBDBG_v1.0
Download ADK_QCC512x_WIN_6_4_Installer_6_4_2_26 and install it
Download qact_base.win.7.2.8 and install it
Download QACT_Modules.qwsp
Download BlueSuite.WIN.3.3 Installer_3.3.10.1199 and install it
Download QCC_Audio_Tool_v1.1

1. Install Qualcomm USB debug drivers

Step1:

Connect amplifier board to computer via the micro USB cable and power the board.

Step2:

Download QCC_USBDBG_v1.0 and unzip it, find QCC_USBDBG.exe in the folder and run it, click "Driver Install" to install Qualcomm USB debug drivers.

Step3:

Wait a moment until you see "Driver Install Success".

To confirm the drivers have been installed as required, check the Device Manager to ensure that USB Hub driver is loaded. The following figure shows the expected Device Manager status. If not please try again.

2. Set QCC30xx series Bluetooth EQ

Step1:

Install qact_base.win.7.2.8 and run QACT, choose "Connection Configuration" to configure the connection.

Step2:

Set KalAccess DLL path, click "ADKs" to load the path automatically, set Workspace File, locate to the place where you save QACT_Modules.qwsp file and load the file, click "Done" to save.

Step3:

Connect amplifier with your phone and play music. Click "Connect To Device" in QACT, choose the device with Proc 0 to connect.

Step4:

In the "Name" column you will see 2 "Equalizers", the top one is for User EQ and the other one is for Speaker EQ.

Here we choose Speaker EQ, click "Monitor Statstics" button to enter Monitoring mode.

Step5:

Choose "Full" from Override option, click Equalizer goes into EQ settings interface.

Step6:

In "Stage" option, you can set stage's number to 0-10, it means you can set up to 10 stages' EQ with customized values. Choose a number for stage, then you can drag the stage points to set a different value, or just input values directly.

Step 7:

Click "Apply" button, you can hear sounds changed from speakers, click "OK" to exit EQ settings interface.

3. Save QCC30xx series Bluetooth EQ settings

Step1:

Click "Set Data" -> "Get Data" -> "Save HTF File", choose the parameters you changed, here we only changed Speaker EQ, so we select Equalizer to save as .htf file to your PC.

Step2:

Download BlueSuite.WIN.3.3 Installer_3.3.10.1199 and install it. Downlaod QCC_Audio_Tool_v1.1.zip and unzip it, copy all files to the BlueSuite.WIN.3.3 installation directory.

Step3:

Run QCC_Audio_Tool.exe, click "Port init" to load port and chip automatically -> click "Choose File" to load the .htf file your saved on your PC -> click "Merge" to burn the file to the Bluetooth chip.

Step4:

Download ADK_QCC512x_WIN_6_4_Installer_6_4_2_26 and install it, run ADK Configuration Tool, Select a device -> Go Configurable -> Read Device -> Save ConfigSet Dump file, current parameters of the device will be read and saved as .xml file.

Step5:

Open xml file with Notepad or other editor, search the ConfigItem with Id="Speaker EQ Bypass", modify it same as the picture shows and save the xml file.