Android Automotive SIG Audio Hardware Abstraction Layer HAL

Android Automotive SIG - Audio Hardware Abstraction Layer (HAL) Android in a Car Audio System Suhasini Raghuram, Analog Devices

What does AHAL group do? • Challenges in integrating the Android automotive embedded solution into existing systems • AHAL working group project looks to investigate the challenges of android in adapting to complex audio use cases • Propose / Develop reference designs and implementations for some common problems May 2021 |. Copyright © GENIVI Alliance 2021 2

Updates Po. C – Raw stream extraction for external audio mixing May 2021 |.

Updates Design and demo of external audio system • Demo is working on Trout. • Working on integrating Web. RTC • Using Web. RTC as transport enables a webbrowser based UI and working remotely from the Android system. • Android system could be Hardware-in-the-loop, or running on simulator on developer workstation May 2021 |. Copyright © GENIVI Alliance 2021 4

Updates • Networked Audio devices ⁃ Discussion around integrating audio networks in Android system ⁃ Considered A 2 B, AVB ⁃ Presented at FOSDEM 2021. video here: https: //video. fosdem. org/2021/D. embedded/networked_audio_in_android. mp 4 • Network Audio synchronization ⁃ Brainstorming on the problem of audio sync ⁃ Available SW solutions discussed May 2021 |. Copyright © GENIVI Alliance 2021 5

Future work • Integrate demo and show full audio path on real HW • Options offered by the Car. Audio. Manager • “Offloading” to external ECU More of these in the tech session on May 7 th. Please join in to know more! May 2021 |. Copyright © GENIVI Alliance 2021 6

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