The Advanced Linux Sound Architecture (ALSA) provides audio and MIDI functionality to the Linux operating system. ALSA has the following significant features:
Efficient support for all types of audio interfaces, from consumer sound cards to professional multichannel audio interfaces.
Fully modularized sound drivers.
SMP and thread-safe design.
User space library (alsa-lib) to simplify application programming and provide higher level functionality.
Support for the older Open Sound System (OSS) API, providing binary compatibility for most OSS programs.
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Recent Releases
1.2.718 Jun 2022 12:05
minor feature:
1.2.6.111 Dec 2021 08:05
minor feature:
1.2.607 Dec 2021 03:45
minor feature:
1.2.5.115 Jun 2021 06:45
minor feature:
1.2.501 Jun 2021 03:17
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1.2.421 Oct 2020 10:45
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1.2.310 Jun 2020 19:05
minor feature:
1.2.222 Feb 2020 06:45
minor feature:
1.2.116 Nov 2019 19:25
minor feature:
1.1.911 May 2019 12:25
minor feature:
1.1.717 Oct 2018 23:45
minor feature:
1.1.604 Apr 2018 03:16
minor feature:
1.1.516 Nov 2017 06:05
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1.1.417 May 2017 20:25
minor feature:
1.1.322 Dec 2016 13:30
minor feature:
Core
conf/ucm: skylake: add skylake-rt286 conf files
conf: bxtrt298: Add topology conf file for bxt
conf: sklrt286: Remove tool to generate private data blobs
ucm: Add ucm files for DB410c board.
Control API
ctl: correct documentation about TLV feature
ctl: improve documentation about TLV-related APIs
ctl: improve API documentation for TLV operation
Mixer API
mixer: Fix rounding mode documentation
PCM API
pcm: fix get_stop_threshold alsa-lib 0.9 alias
pcm: file: update linked hw_ptr and appl_ptr
pcm_rate: Do not discard slave reported delay in status result.
pcm: fix wrong document references to PCM APIs which perform direct memory access with frame copying
pcm: dmix: Do not discard slave reported delay in status result
pcm: Add the PCM state checks to plugins
Revert "pcm: file: Add htimestamp operation in plugin file"
pcm: file: Add htimestamp operation in plugin file
pcm: dshare: Fix endless playback of buffer
pcm: direct: Protect from freeing semaphore when already in use
pcm_dshare: Do not discard slave reported delay in status result.
pcm_plug: Clear plugins on all error conditions
pcm: Better understandable locking code
pcm: Fix shm initialization race-condition
Topology API
topology: fix unused-variable warnings introduced to build_link()
topology: Store number of strings of a text section
topology: Merge private data before embedded controls of a widget
topology: Revise document and comments for ABI v5
topology: Export physical DAIs to the binary for kernel
topology: Support configuring physical DAIs by C API
topology: Parse physical DAIs in text conf file
topology: Remove BE or CC in comments of physical links C API template
topology: Parse name and stream name of physical DAI links
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