OboeTester: add automation requirements
diff --git a/apps/OboeTester/docs/AutomatedTesting.md b/apps/OboeTester/docs/AutomatedTesting.md
index 69a1526..b0a94df 100644
--- a/apps/OboeTester/docs/AutomatedTesting.md
+++ b/apps/OboeTester/docs/AutomatedTesting.md
@@ -7,6 +7,13 @@
Before running the app from an Intent, it should be launched manually and a Round Trip Latency test run. Then you can give permission for using the microphone to record the looped back sound, and give permission to write to external storage for saving the test result.
+## Requirements
+
+* host computer
+* ADB USB cable
+* [loopback adapter](https://source.android.com/devices/audio/latency/loopback)
+* a USB switching device such as [TigerTail](https://go/tigertail)
+
## Start App from Intent
The app can be started by sending a Start comment to the OboeTester class.
@@ -86,8 +93,8 @@
burst.frames size of a DSP burst in frames
buffer.size.frames output buffer size in frames
buffer.capacity.frames maximum capacity in frames
- sample.rate sample rater in Hertz
- rms.signal Root Mean Square of the signal, if it can be identified
+ sample.rate sample rate in Hertz
+ rms.signal Root Mean Square of the signal, if it can be detected
rms.noise Root Mean Square of the background noise before the signal is detected
reset.count # of times the full duplex stream input underflowed and had to resyncronize
result 0 or a negative error
@@ -95,7 +102,7 @@
latency.empty.frames round trip latency if the top output buffer was empty
latency.empty.msec same but translated to milliseconds
latency.frames round trip latency as measured
- latency.msec same but translated to milliseconds
+ latency.msec same but translated to milliseconds, "pro-audioo" devices should be <=20 msec
confidence quality of the latency result between 0.0 and 1.0, higher is better