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Respeaker

respeaker1.jpg

respeaker2.jpg

For Pi Zero

Basic preparation

apt install build-essential git raspberrypi-kernel-headers

Install driver

For some reason this installs an ARM64 toolchain on a 32-bit Raspberry Pi Zero along with a ton of other stuff that seems unrelated.

git clone https://github.com/HinTak/seeed-voicecard
cd seeed-voicecard
sudo ./install.sh

Installation will take quite some time.

Setup

Disable internal sound devices and reduce memory consumption.

/boot/config.txt:

# Enable audio (loads snd_bcm2835)
#dtparam=audio=on

# Enable DRM VC4 V3D driver
#dtoverlay=vc4-kms-v3d
#max_framebuffers=2

# Local
gpu_mem=16

REBOOT

aplay -l && arecord -l

**** List of PLAYBACK Hardware Devices ****
card 0: seeed2micvoicec [seeed-2mic-voicecard], device 0: bcm2835-i2s-wm8960-hifi wm8960-hifi-0 [bcm2835-i2s-wm8960-hifi wm8960-hifi-0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
**** List of CAPTURE Hardware Devices ****
card 0: seeed2micvoicec [seeed-2mic-voicecard], device 0: bcm2835-i2s-wm8960-hifi wm8960-hifi-0 [bcm2835-i2s-wm8960-hifi wm8960-hifi-0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

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