CODEWITHSUNDEEP
androidaudiousblinux-device-driverdevice-driver
azizulhakim
azizulhakim

Reputation: 658

Android, AOA2, USB Isochronous Audio Streaming

Using AOA v2 protocol, a android device can output its audio stream to some accessory connected over an USB. But is it possible for the accessory to send over its audio stream to android device so that the android device will act as an USB speaker?

I'm actually planning to write a USB speaker driver using AOA protocol, but I just got stuck here. Because I can make the device initialize in AOA mode, but can't get the endpoints for audio interface. So I kind of leaning towards to believe that audio input to android device isn't possible using AOA. Anyone has any experience with that?

Upvotes: 1

Views: 939

Answers (1)

user3861866
user3861866

Reputation: 320

As of Android OS v5, Audio to the device ( Mic use-case ) is not supported, what you can do to achieve what you're trying, is, to use BlueTooth to simulate a headset where you have bi-directional audio.

  • On Linux you can use the BluZ BT stack ( quite powerful )
  • On Windows you'll have to implement a BT Profile Driver

Upvotes: 2

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