alsa

Erlang Alsa (libasound2) bindings.

The Alsa application allows for capture and playing audio through the Linux Alsa interface.

Setup

You need to add alsa as a dependency to your project. If you are using rebar3, you can add the following to your rebar.config:

{deps, [
    {alsa, "0.2.2"}
]}.

Also ensure that alsa is added as a dependency to your application, by updating your .app.src file:

{application, my_app, [

    {applications, [
        kernel,
        stdlib,

        alsa  % <- You need this in your applications list
    ]}
]}.

Usage

For usage please refer to the examples in the examples directory. You can also test the examples directly from the shell:

$ rebar3 shell

And then, once inside the erlang shell:

1> c("examples/alsa_example_pcm.erl").
{ok,alsa_example_pcm}
2> alsa_example_pcm:play("default", alsa_example_pcm:generate_noise(5000)).
ok