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wiki:asoundrc [2025/09/09 18:56] – [Syntax] autostatic | wiki:asoundrc [2025/09/09 20:14] (current) – [Syntax] autostatic |
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===== Syntax ===== | ===== Syntax ===== |
The ''.asoundrc'' file uses a simple syntax that is comprised of simple code blocks enclosed by curly braces to create so-called definitions. Definitions can be created for two types of devices: | The ''.asoundrc'' file uses a simple syntax that consists of code blocks enclosed by curly braces to create so-called definitions. Definitions can be created for three types of devices: |
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- ''pcm'' devices. These can be actual hardware or virtual devices created in the ''.asoundrc'' file itself. | - ''pcm'' devices. These can be actual hardware or virtual devices created in the ''.asoundrc'' file itself. |
| - ''pcm_slave'' devices. These are secondary references to either hardware or virtual devices. They can be used to chain definitions. |
- ''ctl'' devices. These comprise how programs can modify specific parameters of hardware or virtual devices. | - ''ctl'' devices. These comprise how programs can modify specific parameters of hardware or virtual devices. |
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| To assign a definition to a device add a line beginning with one of the key words above followed by a dot and the name of the device. This name can be a reference to the default card (''!default'') or a designation of choice. |
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| ===== Definitions ===== |
| Definitions must contain at least the ''type'' key word followed by the name of the PCM plugin that has to be configured. A full list of available plugins can be found here: https://www.alsa-project.org/alsa-doc/alsa-lib/pcm_plugins.html |