- Please follow prior steps to install Raspbian.
- Connect the USB microphone and 3.5mm jack speaker
- Go to the UI and
- Click on the Raspberry icon > Preferences> Audio Device settings
- Select "USB PnP Sound Device (Alsa Mixer)
- Click "Select Controls", select Microphone and make the Microphone audio to its highest.
- Run "sudo raspi-config" on the terminal
- Select "Advanced Options"
- Select "Audio"
- Select "Force 3.5mm headphone jack"
- Select "Finish"
Setting Mic and Audio controls:
- Run the command "aplay -l" (its -L lowercase) in the terminal
- Copy the card # and device # (for speaker)
- Run the command "arecord -l" (its -L lowercase) in the terminal
- Copy the card # and device # (for Mic)
- Open a new file under /home/pi
- vi .asoundrc
- Copy paste the below
pcm.!default {
type asym
capture.pcm "mic"
playback.pcm "speaker"
}
pcm.mic {
type plug
slave {
pcm "hw:1,0"
}
}
pcm.speaker {
type plug
slave {
pcm "hw:0,0"
}
}
In the above
pcm "hw:1,0" under pcm.mic is hw:<card#>,<device#>
Please use the correct one from aplay (Speaker) and arecord (Mic) as mentioned above.
Test Audio:
- ssh to the Pi (or run the commands directly on a terminal on the pi)
- Run the command "speaker-test -t wav"
- You should hear voice from the speaker
- Our speaker is configured.
Test Mic:
- ssh to the Pi (or run the commands directly on a terminal on the pi)
- Run the command
arecord --format=S16_LE --duration=10 --rate=16000 --file-type=raw out2.wav - Say something near the microphone for 10 sec [Note duration above is in seconds]
- To replay, run the command
-
aplay --format=S16_LE --rate=16000 out2.wav
Your Mic and speaker are now configured.
