Multiple files created by arecord
alsa, audio, buildroot, embedded-linux
Solution
The problem seems to appear on ARM architecture starting from 1.0.28 `arecord` version (`arecord --version`). On Raspberry Pi 3 running Raspbian Jessie I managed to downgrade `alsa-utils` from `1.0.28-1` to `1.0.25-4` (rolling back to Wheezy's repo), so that fixed the problem:
- `sudo nano /etc/apt/sources.list`
- add the following line to the end of the file `deb http://mirrordirector.raspbian.org/raspbian/ wheezy main contrib non-free rpi`
- `sudo apt-get update`
- `sudo aptitude versions alsa-utils` (this should show the old version to become available)
- `sudo apt-get install alsa-utils=1.0.25-4`
- now `arecord --version` should display downgraded version `1.0.25`
- You probably now want to remove that line you added to /etc/apt/sources.list, so that you don't get other packages from wheezy
- `sudo nano /etc/apt/sources.list`
- remove the line `deb http://mirrordirector.raspbian.org/raspbian/ wheezy main contrib non-free rpi`
- run apt-get update again
- also, put alsa-utils on hold so it doesn't get upgraded
- `sudo apt-mark hold alsa-utils`
Problem
I've made custom distribution using buildroot, with hard-flow for ARMv7 processor. Everything is working except.... ``` # arecord -D hw:0,0 -fdat -d 5 test.wav ``` This makes multiple files. Thousands of them. ``` -rw-r--r-- 1 root root 958508 Jan 1 00:19 test-01.wav -rw-r--r-- 1 root root 44 Jan 1 00:19 test-02.wav -rw-r--r-- 1 root root 44 Jan 1 00:19 test-03.wav -rw-r--r-- 1 root root 44 Jan 1 00:19 test-04.wav -rw-r--r-- 1 root root 44 Jan 1 00:19 test-05.wav -rw-r--r-- 1 root root 44 Jan 1 00:19 test-06.wav -rw-r--r-- 1 root root 44 Jan 1 00:19 test-07.wav -rw-r--r-- 1 root root 44 Jan 1 00:19 test-08.wav -rw-r--r-- 1 root root 44 Jan 1 00:19 test-09.wav -rw-r--r-- 1 root root 44 Jan 1 00:19 test-10.wav -rw-r--r-- 1 root root 44 Jan 1 00:19 test-100.wav -rw-r--r-- 1 root root 44 Jan 1 00:19 test-101.wav -rw-r--r-- 1 root root 44 Jan 1 00:19 test-102.wav -rw-r--r-- 1 root root 44 Jan 1 00:19 test-103.wav -rw-r--r-- 1 root root 44 Jan 1 00:19 test-104.wav -rw-r--r-- 1 root root 44 Jan 1 00:19 test-105.wav -rw-r--r-- 1 root root 44 Jan 1 00:19 test-106.wav ``` And so on... This happens if I pass -d parameter. Any idea?