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Add Windows WASAPI setting images and beamforming explanation to MicArray UAC Drive Board documentation

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taorye
2025-08-22 15:51:41 +08:00
parent 035a3d1922
commit 6e677504c7
5 changed files with 36 additions and 0 deletions
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docs/hardware/en/modules/micarray_usbboard_bl616.md
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@@ -40,6 +40,24 @@ Choose one of the following connection methods:
### USB UAC2.0 (Audacity)
![](../../assets/modules/micarray_usbboard_bl616/audacity-linux-sine1k.png)
**Windows WASAPI**
<div style="display: flex; justify-content: space-between;">
<img src="../../assets/modules/micarray_usbboard_bl616/audacity-windows-wasapi-step-1.png" style="width: 48%;">
<img src="../../assets/modules/micarray_usbboard_bl616/audacity-windows-wasapi-step-2.png" style="width: 48%;">
</div>
### USB UAC2.0 Beamforming (Audacity)
This board supports 12-direction beamforming, which suppresses audio from other directions than the user-set monitoring direction, thereby achieving noise reduction and gain for the target monitoring direction. The following example uses a sine wave audio test for demonstration:
Mic0(CH0) is near the 500HZ SINE wave and Mic3(CH3) is near the 1000HZ SINE wave.
Type `0` in serial so that CH6 is the output of beamforming at CH0.
Obviously on CH6, the gain of the 500 Hz sine wave signal near CH0 has been increased, while the impact of the 1000 Hz sine wave signal from other directions has been eliminated.
![](../../assets/modules/micarray_usbboard_bl616/sine500hz@ch0_and_sine1000hz@ch3_with_beamforming@ch0.png)
### USB CDC ACM RAW (Minicom) and USB2TTL UART HEX-CMAP (Picocom)
![](../../assets/modules/micarray_usbboard_bl616/minicom_acm&picocom_uart-combine.png)

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docs/hardware/zh/modules/micarray_usbboard_bl616.md
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@@ -38,6 +38,24 @@
### USB UAC2.0 (Audacity)
![](../../assets/modules/micarray_usbboard_bl616/audacity-linux-sine1k.png)
**Windows WASAPI**
<div style="display: flex; justify-content: space-between;">
<img src="../../assets/modules/micarray_usbboard_bl616/audacity-windows-wasapi-step-1.png" style="width: 48%;">
<img src="../../assets/modules/micarray_usbboard_bl616/audacity-windows-wasapi-step-2.png" style="width: 48%;">
</div>
### USB UAC2.0 Beamforming (Audacity)
驱动板支持12方向的波束成型，即抑制用户设置的监听方向之外的音频，达到给目标监听方向增益降噪的效果。以下以正弦波音频实例测试讲解:
Mic0(CH0) 接近 500HZ 正弦波，Mic3(CH3) 接近 1000HZ 正弦波。
串口输入 `0`，这样 CH6 就是 CH0 处波束成形的输出。
显然在 CH6 上，增益了靠近 CH0 处的 500hz 正弦波信号并消除了其他角度的 1000hz 正弦波信号带来的影响。
![](../../assets/modules/micarray_usbboard_bl616/sine500hz@ch0_and_sine1000hz@ch3_with_beamforming@ch0.png)
### USB CDC ACM RAW (Minicom) and USB2TTL UART HEX-CMAP (Picocom)
![](../../assets/modules/micarray_usbboard_bl616/minicom_acm&picocom_uart-combine.png)