Hi,
it seems that I found a (sort of) solution.
Reloading the alsa kernel modulesbefore running arecord fixes the problem.
The command that I run is:
rmmod snd-usb-audio && rmmod snd_usbmidi_lib && rmmod snd_rawmidi &&
rmmod snd_pcm && rmmod snd_timer && rmmod snd_seq_device && rmmod
snd_hwdep && rmmod snd && rmmod soundcore && modprobe soundcore &&
modprobe snd && modprobe snd-usb-audio
That way, every and each execution of arecord gives a recording with
clear sound.
Regards,
piercarlo
Piercarlo Slavazza <mailto:piercar...@gmail.com>
venerdì 20 novembre 2015 22.24
Hi,
I am running arecord on an Openwrt installation and I am experiencing
the following weird problem: if I record a sound two consecutive
times, the first time a lot of noise is recorded, and the latter the
sound is without any noise. It keeps going on this way (one noisy, and
the next one clear), unitl I close the terminal and open a new one:
then, it keeps going again that way - but with the order "reverted",
i.e. one clear, and one noisy.
Here are the commands executed:
root@55:/opt# arecord -f cd -r 16000 -c 1 /tmp/user_speech_18.wav
Recording WAVE '/tmp/user_speech_18.wav' : Signed 16 bit Little
Endian, Rate 16000 Hz, Mono
^CAborted by signal Interrupt...
arecord: pcm_read:2031: read error: Interrupted system call
root@55:/opt# arecord -f cd -r 16000 -c 1 /tmp/user_speech_19.wav
Recording WAVE '/tmp/user_speech_19.wav' : Signed 16 bit Little
Endian, Rate 16000 Hz, Mono
^CAborted by signal Interrupt...
arecord: pcm_read:2031: read error: Interrupted system call
Here the recorded files:
* /tmp/user_speech_18.wav - noisy: https://goo.gl/cqU6Bz
* /tmp/user_speech_19.wav - clear: https://goo.gl/1LGmZ1
I am using the following version of arecord: arecord: version 1.0.28
by Jaroslav Kysela <pe...@perex.cz>
Any idea of what it is going on or any suggetion on how to figure it out?
Thank you very much!
Regards,
Piercarlo
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