Page History

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• PoC presentation Piotr
• Update of the list of prioritized topics
• Update of the investigation list
• Update of the Virtual meeting Agenda and project overview
• Update of the Input streams

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AUDIO_HAL_CW18 AUDIO_HAL_CW18

Thursday 30 April - 11:30am CET (AUDIO_HAL_CW18)

Participants

Philippe RobinSuhasini Raghuram Unknown User (wassim.filali) @Henric Ruslan Shymkevych

apologies: Piotr Krawczyk Unknown User (bartoszbialek)

Minutes

Review of Ruslan's email of 23 April - archive

• Wassim: all the different topics listed by Ruslan are interested, my recommendation would be to add and structure them in the wiki
  
  • raw stream section should go to Android and System Level Audio wiki page
  • the other sections are more relevant for the List of prioritarized topics for the Audio HAL
• Philippe: this can be done in coordination with Nadim who was assigned a TODO for review the list of prioritarized topics

Dynamic routing

• Henric: in our mock-up we were able to enable the dynamic routing and when we did so, the USB audio stopped working

• Ruslan: in EPAM implementation we do not have USB audio so I cannot help

• Ruslan: it looks to me that an internal option to be turned on, this relates likely to the implementation inside the framework, AFAIK the USB audio feature is not dynamic

• Philippe: it would interested to get TietoEVRY guys's opinion

Proof-of-concept code

• Gunnar: I invited Piotr to publish his code on github, but he has acknowledged the invite yet
• the code repo is android-external-audio-mixing repository

Virtual technical summit preparation

• Philippe: reminds Wasssim to reserve some time in his agenda for next week for preparing slides for the short status report on Tuesday 12 May and the workshop on Thursday 14 May
• Philippe: will send his recommendations offline
• Philippe: we will use Webex for the workshop on Thursday and an other webinar professional service on Tuesday 12 May (not zoom)
  • NOTE: for the Tuesday sessions, there will be a rehearsal with the professional service the day before (Monday), stay tuned
• Philippe: asks Henric and Suhasini whether they have specific topics to discuss the workshop; they will check whether they can suggest something
  • Henric: Bluetooth
  • Suhasini: networked audio devices

Gathered Todo's:

•  Ruslan Shymkevych : Get in touch with Unknown User (niskandar) for adding the different sections of his email into the wiki

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AUDIO_HAL_CW17 AUDIO_HAL_CW17

Thursday 23 April - 11:30am CET (AUDIO_HAL_CW17)

Participants

Philippe Robin Piotr Krawczyk Unknown User (bartoszbialek) Suhasini Raghuram Unknown User (niskandar) Unknown User (wassim.filali) @Henric

Minutes

Updates of the tasks done from last week: Wassim, Piotr, Nadim

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• Jaguar Land Rover (JLR) representatives working on Android Automotive  joined the AASIG VHAL call this week and should join the All Hands monthly call next week. If they ever decide to join the Audio HAL project, we might have to think about the time of the meeting because they are based in the US Pacific
  Project Status Report:
  • the Technical summit is nearly here, we must prepare a presentation about the projects VHAL and Audio HAL and in general update and prepare an agenda for the virtual meeting on the 14th of May.
  • Unknown User (wassim.filali) : could you please work closely with Philippe and Gunnar in order to prepare a comprehensive technical report for the status of the project and an agenda?
  • The Agenda can be found here https://www.eventleaf.com/geniviVTS. Some of the meetings are very interesting and will be broadcasted live by a professional company without the use of Zoom.

Gathered Todo's:

•  Piotr Krawczyk : update of the PoC in AUDIO_HAL_CW18
•  Unknown User (niskandar): create a picture for next week to show the different options of handling external streams in Android
•  Unknown User (niskandar) : Check the list of list of prioritized topics and take care of updating it
•  Unknown User (wassim.filali) : could you please work closely with Philippe and Gunnar in order to prepare an comprehensive technical report for the status of the project and an agenda?

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AUDIO_HAL_CW16 AUDIO_HAL_CW16

Thursday 16 April - 11:30am CET (AUDIO_HAL_CW16)

Participants

Philippe Robin Gunnar Andersson Piotr Krawczyk Unknown User (bartoszbialek) Suhasini Raghuram Ruslan Murtazin Unknown User (niskandar) Unknown User (wassim.filali) Andrii Chepurnyi @Henric

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•  Discuss the gathered topics, who can work on which topics and which strategy
•  Status update on the "access raw streams"

Minutes

Changes done in this page Android and System Level Audio:

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• Piotr Krawczyk : please update the presentation attached
• Piotr:Stage 1 of the POC should be finished next week
  • Gunnar Andersson: provide a place to add the code of the POC
    DONE → 2020-04-20: android-external-audio-mixing repository
• Piotr: the concept is that we can either
  • Create a separate framework parallel to the android framework that takes care of accessing devices. Any application that is aware of such a framwork can use it in order to better control the streams.
  • Or use the framework to create many devices and connect them as needed.
• Gunnar: this is also nice for systems with different OS
• Piotr: there is still one point of investigation
  • the Android Audio API, the one created to allow low latency streams. we have to think how we would handle this.

Gathered Todo's:

•  Unknown User (bartoszbialek) please add your comments in the page Android and System Level Audio
•  Unknown User (wassim.filali) : please write down the decision about supporing the comrpession
•  Unknown User (niskandar): investigate input steams as well from the page Android and System Level Audio
•  Piotr Krawczyk : please update the presentation attached
•  Gunnar Andersson: provide a place to add the code of the POC → android-external-audio-mixing repository
•  @All: please check the topics of investigation to see if you would like to add more topics to the page Android and System Level Audio
•  @All check your emails to see if you have received the invitation about the summit

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AUDIO_HAL_CW15 AUDIO_HAL_CW15

Thursday 09 April - 11:30am CET (AUDIO_HAL_CW15)

Participants

Philippe Robin Gunnar Andersson Piotr Krawczyk Unknown User (bartoszbialek)Andrii Chepurnyi@Henric Suhasini Raghuram Stephen Lawrence

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• from last week's minutes
  • Discuss the gathered topics, who can work on which topics and which strategy
• Status update on the "access raw streams"
• AOB
  • abstract of the GENIVI virtual tech summit AASIG Audio HAL workshop

Minutes

list of gathered topics on multi-zone audio management

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Thursday 02 April - 11:30am CET (AUDIO_HAL_CW14)

Participants

Philippe Robin Gunnar Andersson Piotr Krawczyk Unknown User (bartoszbialek) Unknown User (wassim.filali) Andrii Chepurnyi Unknown User (niskandar) @Henric Suhasini Raghuram

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•  Slides from Wassim about the two models inside and outside of AA
•  discussion of the cases/features that we are trying to solve
•  checking the Audio Manager to decide whether or not it needs an update

Minutes

Slides of Wassim

• 2 strategies or options:
  • android provides sources and sinks
  • Android controls the complete systems
• We will not discuss the need to have such options
  • Basically some functions cannot be integrated to AA
  • Audio sources coming from android or from external (android not aware of them)
• Each strategy has limitations and can be criticized
• Idea is to get each model and apply to it questions/cases
• Questions like safety sources, raw streams, etc.
  

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