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Change-Id: I1477c81706bc2909edce03e753ad76d6ac8f275c
Signed-off-by: Stephane Desneux <stephane.desneux@iot.bzh>

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+# 4a-tools
+
+This repository contains tools, scripts and data to test the 4A stack (Advanced AGL Audio Architecture).
+
+4A is related to [AGL project](https://www.automotivelinux.org/)
+
+## References
+
+### Presentation
+
+* [4a-proposal-Feb18]
+* [4a-roadmap-Apr18]
+* [4a-HALs-by-fiberdyne]
+* [4a-presentation-by-audiokinetics]
+
+### 4A repositories
+
+Repositories related to 4A:
+
+* [agl-service-audio-4a]: high level API providing simple, unified entry point for all AGL audio applications
+* [4a-hal-generic]: HAL manager and default HALs (hardware abstraction layers)
+* [4a-alsa-core]: low level binding to wrap ALSA core operations
+* [4a-softmixer]: reference software mixer using ALSA snd-aloop driver and a user space mixer
+* [apps/mixer]: Mixer Application
+
+[4a-alsa-core]:https://git.automotivelinux.org/src/4a-alsa-core/
+[4a-hal-generic]:https://github.com/iotbzh/4a-hal-generic
+[4a-softmixer]:https://github.com/iotbzh/4a-softmixer
+[agl-service-audio-4a]:https://git.automotivelinux.org/apps/agl-service-audio-4a/
+[apps/mixer]:https://git.automotivelinux.org/apps/mixer/
+
+[4a-proposal-Feb18]:https://iot.bzh/en/publications/32-2018/67-agl-audio-advanced-architecture
+[4a-roadmap-Apr18]:https://iot.bzh/en/publications/32-2018/73-iotbzh-agl-4a-audio-roadmap-apr-18
+[4a-HALs-by-fiberdyne]:https://wiki.automotivelinux.org/_media/agl-distro/201804_aglf2f_fddsp-4a-audio-hal.pptx
+[4a-presentation-by-audiokinetics]:https://schd.ws/hosted_files/aglammeu17/aa/HighLevelAudio_DresdenAMM_Final_0.pdf