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This is an enhancement fork with the explicit aim of supporting current shipping Raspbian/Ubuntu kernels without requiring downgrading. Please donate at https://hintak.github.io/ if it works for you. Use vX.Y branch for kernel version vX.Y
381 commits 29 branches 6 tags 1.3 MiB
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Update README.md 
changed the installation instructions to point at this repo so people dont accidentally just copy paste the install instructions and get the out of date ones from seeed instead.
2023-11-05 10:25:34 +00:00
ac108_plugin remove debug message, increase ac108 buf size 2017-10-09 14:58:35 +08:00
patches adjusting back-to-v4.19.diff to recent changes 2021-04-27 15:57:01 +01:00
pulseaudio update: more convenient way to apply udev rules 2018-10-11 17:54:51 +08:00
tools test hardware mic phase position 2018-12-25 09:36:27 +08:00
ac10x.h Second/Alternative change to correct for 5.5+ change in trigger order 2021-04-27 02:49:25 +01:00
ac101.c Second/Alternative change to correct for 5.5+ change in trigger order 2021-04-27 02:49:25 +01:00
ac101_regs.h Add: headset detection for 6-Mics Circular Array Kit and 4-Mics Linear Array Kit 2018-04-02 08:43:20 +00:00
ac108.c v6.1: i2c: Make remove callback return void 2023-01-18 00:14:00 +00:00
ac108.h add respeaker 4mic audio card driver 2017-09-14 08:29:26 +00:00
ac108_6mic.state Following Standard ALSA Control Names convention 2020-09-28 16:38:30 +01:00
ac108_asound.state change asound.state for 4mic array, lower down PGA to reduce static noise 2018-09-29 14:49:19 +08:00
asound_2mic.conf use card id to identify cards 2018-07-24 11:28:55 +08:00
asound_4mic.conf use card id to identify cards 2018-07-24 11:28:55 +08:00
asound_6mic.conf update 6 mic gain controls 2018-08-06 06:32:46 +00:00
builddtbo.sh Adding missing shebang 2020-09-18 01:06:57 +01:00
default.pa add pulseaudio default configuration file 2017-09-08 04:12:53 +00:00
dkms.conf Attempt to fix mis-match to "5.15.84.x 2023-01-23 11:53:49 +00:00
install.sh Fine tuning the regex from discussion in the last pull 2023-08-02 02:08:55 +01:00
LICENSE Create LICENSE 2017-09-15 10:14:31 +08:00
Makefile Revert "Operational change to correct for 5.5+ change in trigger order; REVISIT!" 2021-04-27 02:49:08 +01:00
README.md Update README.md 2023-11-05 10:25:34 +00:00
seeed-2mic-voicecard-overlay.dts Fix 2mic hat install failed 2018-03-30 03:21:40 +00:00
seeed-2mic-voicecard.dtbo Fix 2mic hat install failed 2018-03-30 03:21:40 +00:00
seeed-4mic-voicecard-overlay.dts relocating fixed-clock entry, based on upstream advice 2020-09-14 14:41:47 +01:00
seeed-4mic-voicecard.dtbo rebuilt dtbo on current Raspbian 2020-09-14 14:46:10 +01:00
seeed-8mic-voicecard-overlay.dts relocating fixed-clock entry, based on upstream advice 2020-09-14 14:41:47 +01:00
seeed-8mic-voicecard.dtbo rebuilt dtbo on current Raspbian 2020-09-14 14:46:10 +01:00
seeed-voicecard 64-bit-only kernel package does not have /boot/kernel.img ; use /boot/kernel8.img for version detection. 2023-04-16 19:19:19 +01:00
seeed-voicecard.c v6.0: ASoC: simple-card-utils: Move snd_soc_component_is_codec to be local 2022-10-30 22:45:19 +00:00
seeed-voicecard.service add seeed-voicecard manger service 2018-02-01 16:07:02 +08:00
sound-compatible-4.18.h v4.17: replace codec to component 2021-04-25 00:13:42 +01:00
ubuntu-prerequisite.sh Added g++ to ubuntu-prerequisite.sh 2021-05-27 22:05:01 +01:00
uninstall.sh stop systemd service before diabling in uninstall, taken from upstream c1c2e5ca 2020-09-28 17:02:11 +01:00
wm8960.c v6.1: i2c: Make remove callback return void 2023-01-18 00:14:00 +00:00
wm8960.h add wm8960.h header file 2017-04-27 16:52:22 +08:00
wm8960_asound.state optimize some options 2017-09-15 02:01:53 +00:00

README.md

seeed-voicecard

The drivers for ReSpeaker Mic Hat, ReSpeaker 4 Mic Array, 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

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!

Coherence

Estimate the magnitude squared coherence using Welch’s method. 4-mics-linear-array-kit coherence
Note: 'CO 1-2' means the coherence between channel 1 and channel 2.

# 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.

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.