18 lines
889 B
Markdown
18 lines
889 B
Markdown
|
The AudioLoopbackTest is used to test round-trip audio performance over headset jack and USB.
|
||
|
|
It is based on the Loopback.apk run with Loopback dongle: https://source.android.com/devices/audio/loopback
|
||
|
|
|
||
|
|
* How to run the test?
|
||
|
|
1. plug in the Loopback dongle to your device.
|
||
|
|
2. `make vts`
|
||
|
|
3. `vts-tradefed run vts -m AudioLoopbackTest`
|
||
|
|
|
||
|
|
* What metrics this test report?
|
||
|
|
1. Average round-trip latency.
|
||
|
|
2. Standard deviation of round-trip latency.
|
||
|
|
|
||
|
|
* Which version of Loopback.apk is used in the test?
|
||
|
|
The Loopback.apk used in this test is Loopback-v17 copied from https://tradefed.teams.x20web.corp.google.com/testdata/media/apps/
|
||
|
|
|
||
|
|
* Where can I get the source code for the Loopback.apk?
|
||
|
|
Internal developer: https://googleplex-android.git.corp.google.com/platform/vendor/google_toolbox/+/master/user/rago/studio/LoopbackApp/
|
||
|
|
Open source: https://github.com/gkasten/drrickorang
|