https://github.com/hintak/seeed-voicecard-x

Detached mirror of the most-current-kernel branch of https://github.com/HinTak/seeed-voicecard
https://github.com/hintak/seeed-voicecard-x

Last synced: 17 days ago
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Detached mirror of the most-current-kernel branch of https://github.com/HinTak/seeed-voicecard

• Host: GitHub
• URL: https://github.com/hintak/seeed-voicecard-x
• Owner: HinTak
• License: gpl-3.0
• Created: 2020-09-04T23:05:01.000Z (about 4 years ago)
• Default Branch: master
• Last Pushed: 2024-10-21T23:03:14.000Z (24 days ago)
• Last Synced: 2024-10-22T19:37:18.009Z (23 days ago)
• Language: C
• Size: 1.45 MB
• Stars: 6
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# seeed-voicecard

The drivers for [ReSpeaker Mic Hat](https://www.seeedstudio.com/ReSpeaker-2-Mics-Pi-HAT-p-2874.html), [ReSpeaker 4 Mic Array](https://www.seeedstudio.com/ReSpeaker-4-Mic-Array-for-Raspberry-Pi-p-2941.html), [6-Mics Circular Array Kit](), and [4-Mics Linear Array Kit]() for Raspberry Pi.

### Install seeed-voicecard

Get the seeed voice card source code and install all linux kernel drivers

```bash

git clone https://github.com/HinTak/seeed-voicecard

cd seeed-voicecard

sudo ./install.sh

sudo reboot

```

## ReSpeaker Documentation

Up to date documentation for reSpeaker products can be found in [Seeed Studio Wiki](https://wiki.seeedstudio.com/ReSpeaker/)!

![](https://files.seeedstudio.com/wiki/ReSpeakerProductGuide/img/Raspberry_Pi_Mic_Array_Solutions.png)

### Coherence

Estimate the magnitude squared coherence using Welch’s method.

![4-mics-linear-array-kit coherence](https://user-images.githubusercontent.com/3901856/37277486-beb1dd96-261f-11e8-898b-84405bfc7cea.png)  

Note: 'CO 1-2' means the coherence between channel 1 and channel 2.

```bash

# How to get the coherence of the captured audio(a.wav for example).

sudo apt install python-numpy python-scipy python-matplotlib

python tools/coherence.py a.wav

# Requirement of the input audio file:

- format: WAV(Microsoft) signed 16-bit PCM

- channels: >=2

```

### uninstall seeed-voicecard

If you want to upgrade the driver , you need uninstall the driver first.

```

pi@raspberrypi:~/seeed-voicecard $ sudo ./uninstall.sh 

...

------------------------------------------------------

Please reboot your raspberry pi to apply all settings

Thank you!

------------------------------------------------------

```

Enjoy !

### Technical support

For hardware testing purposes we made a Rasperry Pi OS 5.10.17-v7l+ 32-bit image with reSpeaker drivers pre-installed, which you can download by clicking on [this link](https://files.seeedstudio.com/linux/Raspberry%20Pi%204%20reSpeaker/2021-05-07-raspios-buster-armhf-lite-respeaker.img.xz).

We provide official support for using reSpeaker with the following OS:

- 32-bit Raspberry Pi OS

- 64-bit Raspberry Pi OS

And following hardware platforms:

- Raspberry Pi 3 (all models), Raspberry Pi 4 (all models)

Anything beyond the scope of official support is considered to be community supported. Support for other OS/hardware platforms can be added, provided MOQ requirements can be met. 

If you have a technical problem when using reSpeaker with one of the officially supported platforms/OS, feel free to create an issue on Github. For general questions or suggestions, please use [Seeed forum](https://forum.seeedstudio.com/c/products/respeaker/15).