alsa-plugins-1.1.8

#### Beyond Linux® From Scratch - Version 2019-02-27

### Chapter 42. Multimedia Libraries and Drivers

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# alsa-plugins-1.1.8

## Introduction to ALSA Plugins

The ALSA Plugins package contains plugins for various audio libraries and sound servers.

This package is known to build and work properly using an LFS-8.4 platform.

### Package Information

- Download (FTP): ftp://ftp.alsa-project.org/pub/plugins/alsa-plugins-1.1.8.tar.bz2

- Download MD5 sum: d0f87211d1560f2c07c8eae4297bc4f6

- Download size: 368 KB

- Estimated disk space required: 4.9 MB

- Estimated build time: less than 0.1 SBU

### ALSA Plugins Dependencies

#### Required

alsa-lib-1.1.8

#### Optional

FFmpeg-4.1.1, libsamplerate-0.1.9, PulseAudio-12.2, Speex-1.2.0, JACK, and maemo

User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/alsa-plugins

## Installation of ALSA Plugins

Install ALSA Plugins by running the following commands:

    ./configure &&
    make

This package does not come with a test suite.

Now, as the `root` user:

    make install

## Contents

Installed Programs: None
Installed Libraries: Numerous libasound_module_`<module>`.so modules including ctl_oss, ctl_pulse, pcm_a52, pcm_jack, pcm_oss, pcm_pulse, pcm_upmix, pcm_usb_stream, pcm_vdownmix, rate_lavcrate*, rate_samplerate*, and rate_speexrate*
Installed Directories: None

### Short Descriptions

`libasound_module_pcm_oss.so` | Allows native ALSA applications to run on OSS.
`libasound_module_pcm_upmix.so` | Allows upmixing sound to 4 or 6 channels.
`libasound_module_pcm_vdownmix.so` | Allows downmixing sound from 4-6 channels to 2 channel stereo output.
`libasound_module_pcm_jack.so` | Allows native ALSA applications to work with jackd.
`libasound_module_pcm_pulse.so` | Allows native ALSA applications to access a PulseAudio sound daemon.
`libasound_module_pcm_a52.so` | Converts S16 linear sound format to A52 compressed format and sends it to an SPDIF output.
`libasound_module_rate_samplerate.so` | Provides an external rate converter through `libsamplerate`.

Last updated on 2019-02-17 15:55:58 -0600

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