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Questions tagged [arecord]

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How use microphone sound level to start arecord and or aplay

I start a simple project which use 2 raspberry. Both have microphon and speaker, and a button. The button starts the aplay and arecord commands for both of raspberry. And the full duplex communication ...
wanwan's user avatar
  • 1
0 votes
0 answers
65 views

Audio output not working with cli

I am using Raspberry pi OS with raspberry pi 4. I have an application which uses playsound with python to play an audio file created by gTTS library. I am using a usb sound card card 2 which has a ...
NINJA's user avatar
  • 1
-1 votes
1 answer
516 views

Raspberry pi 4 - recording with 4 mini usb microphones - arecord

Im using mini usb microphone for recording audio. The sound is not good so i trying connect 3 more (total 4) mini usb microphones. I tried arecord --device=hw:1,0 --format S16_LE --rate 44100 -V mono -...
JiriK's user avatar
  • 1
1 vote
1 answer
1k views

arecord no such file or directory error when running via cron

So I can run: arecord -d 9 -f S16_LE -c 1 -r44100 -t wav /home/pi/signal_9s.wav from terminal and it works as expected. It records for 9 seconds and saves to the signal_9s.wav file. However if I set ...
Chase Roberts's user avatar
3 votes
0 answers
119 views

I2S MEMS Microphone pop sound at the beginning of the recording

I am using Adafruit I2S MEMS Microphone in Raspberry Pi 4 running raspbian buster. I installed it successfully following adafruit guide. It is working well for recording using arecord. However, every ...
Imanol Gómez's user avatar
2 votes
0 answers
246 views

Real Time audio recording from two audio input and playing simultaneously in 2 audio output

I have one Raspberry Pi with 2 USB speakers and a mic system. I want to record simultaneously from one mic and play in another speaker. Like, MicA recording will be played in SpeakerB and MicB ...
Dwitam Ghosh's user avatar
1 vote
1 answer
3k views

Arecord: "main:828: device or resource busy" when run via systemd service, but works fine from CLI

I have a python script which, when a GPIO button is pressed, launches an arecord process. This records audio from a USB microphone (plughw:CARD=GS3,DEV=0) and pipes it to another program for ...
Micah Vertal's user avatar
3 votes
0 answers
305 views

Microphone is not recording with HifiBerry and Raspberry Pi 3

I installed the HifiBerry driver as specified. The Board is recognized and the audio output works fine. Just the audio input seems to be not working. I checked if the microphone is muted but I can't ...
Samsky's user avatar
  • 131
1 vote
0 answers
458 views

Constant beep when recording sound

I am using an external sound card with my Raspberry Pi 3 Model B+. I have already disabled the default bcm2835 sound card. I have checked that the my external sound card is active. I have turned up ...
Abrar Hossain's user avatar
0 votes
2 answers
1k views

whistle sound when recording with USB sound card [alsamixer]

I'm working on a project in which I need to record voice using a Raspberry Pi. I'm using alsamixer and arecord, the problem is that when I'm recording it starts playing a weird whistle/whine/...
daniel perez's user avatar
0 votes
0 answers
105 views

arecord only works with -D

Long story short, my mic was working fine yesterday. I then had a pair of USB speakers connected and then again disconnected. And now I cannot get the little thing to do a arecord with using the "-D" ...
Rasmus Thorslund's user avatar
1 vote
0 answers
570 views

USB Microphone gives error 'Device or Resource Busy'

I've recently purchased this microphone for use with my Pi 3, but I can't seem to get it to work. I run arecord -l and the Pi can see my device: **** List of CAPTURE Hardware Devices **** card 1: ...
Pezholio's user avatar
  • 675