Checking for the Card

run sudo aplay -l

To list all sound cards, you should see it at the bottom

If your card number differs from the above image, take note of your number.

You can

use alsamixer

to adjust the volume, dont forget to select the card with F6

Headphone/Speaker Test Make sure the Audio On/Off switch is set to ON!

With either headphones plugged into the headphone jack or a speaker attached to the speaker port,

run speaker-test -c2

Microphone Test

There are two microphones, and now we can test that they work.

This test is best done with headphones, not using the speaker port, because it can cause a painful feedback effect if the speakers are next to the mics!

Run: sudo arecord -f cd -Dhw:2 | aplay -Dhw:2

If your sound card ID is not #2,

then replace the number in both of the -Dhw: parameters with your actual number

2/27

https://forums.adafruit.com/viewtopic.php?t=208586

Trouble getting voice bonnet to work with Raspberry Pi

by jakerella »

Sat Mar 30, 2024 3:39 pm

Update: I uninstalled the HinTak fork (using the uninstall.sh script) and installed the source repo (https://github.com/respeaker/seeed-voicecard) using essentially the same instructions and things are working!

steps:

1. rename the folder seeed-voicecard in my case rename too <xxseeed-voicecard>

2. redo it

cd ~

sudo pip3 install --upgrade adafruit-python-shell

wget https://raw.githubusercontent.com/adafruit/Raspberry-Pi-Installer-Scripts/

master/raspi-blinka.py

sudo python3 raspi-blinka.py

When it asks you if you want to reboot, choose yes.

Speaker Bonnet on Raspberry Pi 4 - No errors and no sound

https://forums.adafruit.com/viewtopic.php?t=185587

#HMMicToMatPlot0202-2025.py

import pyaudio

import numpy as np

import matplotlib.pyplot as plt

# Audio stream configuration

CHUNK = 1024  # Buffer size

FORMAT = pyaudio.paInt16  # 16-bit audio format

CHANNELS = 1  # Mono audio

RATE = 44100  # Sampling rate (Hz)

def live_plot_mic():

   p = pyaudio.PyAudio()

   # Open microphone stream

   mic_stream = p.open(format=FORMAT, channels=CHANNELS,

                       rate=RATE, input=True,

                       frames_per_buffer=CHUNK)

   # Create a Matplotlib figure for real-time plotting

   plt.ion()  # Enable interactive mode

   fig, ax = plt.subplots()

   x = np.arange(0, CHUNK)  # X-axis (samples)

   y = np.zeros(CHUNK)  # Y-axis (initial blank signal)

   line, = ax.plot(x, y)

   ax.set_ylim(-32768, 32768)  # 16-bit audio range

   ax.set_xlim(0, CHUNK)  # Number of samples

   print("Streaming microphone input to live plot... Press Ctrl+C to stop.")

   try:

       while True:

           data = mic_stream.read(CHUNK, exception_on_overflow=False)  # Read audio data

           audio_wave = np.frombuffer(data, dtype=np.int16)  # Convert to NumPy array

           line.set_ydata(audio_wave)  # Update Y-data

           plt.draw()

           plt.pause(0.01)  # Small pause to allow GUI update

   except KeyboardInterrupt:

       print("Stopping microphone streaming.")

   finally:

       mic_stream.stop_stream()

       mic_stream.close()

       p.terminate()

       plt.ioff()

       plt.show()  # Final static plot

if __name__ == "__main__":

   live_plot_mic()