The alsa-utils package comes with systemd unit configuration files rvice and rvice by default. $ apulse yourapplication ALSA and systemd Then load the snd-seq-oss, snd-pcm-oss and snd-mixer-oss kernel modules to enable OSS emulation.Īpulse AUR lets you use ALSA for applications that support only PulseAudio for sound. If you want OSS applications to work with dmix, install the alsa-oss package as well. Without OSS or the emulation library, /dev/dsp will be missing, and the application will not produce any sound. for legacy applications which try to open /dev/dsp and write sound data to them directly. Note: This is important if your application complains about missing /dev/dsp or /dev/snd/seq.ĪLSA has some ability to intercept OSS calls and re-route them through ALSA instead. To allow remote users to use ALSA, you need to add those users to the audio group however, this is not recommended by default (see note below). Usually, local users have permission to play audio and change mixer levels. However, your sound may be initially muted. Udev will automatically detect your hardware and select needed drivers at boot time, therefore, your sound should already be working. Therefore, manual installation is not necessary. 7.7 Correctly detect microphone plugged in a 4-pin 3.5mm (TRRS) jackĪLSA is a set of built-in Linux kernel modules.7.5 Virtual sound device using snd-aloop.3.5.2 ALSAEqual for specific outputs only.3.3 Verifying correct sound modules are loaded.3.2.3 Select the default PCM via environment variable.3.2.2 Configuring the index order via kernel module options.3.2.1 Setting the default sound card via defaults node.3.1.3.1 An example of setting default device using 'defaults' node.

Ffmpeg command intercept