Update for format of Android

Update for format of Android audio, from .amr to .aac.

 This closes #124

diff --git a/README.md b/README.md
index e2b74cc..e03f5c4 100644 (file)
--- a/README.md
+++ b/README.md
@@ -553,7 +553,7 @@ function recordAudio() {
 
 ### Android Quirks
 
-- Android devices record audio in Adaptive Multi-Rate format. The specified file should end with a _.amr_ extension.
+- Android devices record audio in AAC ADTS file format. The specified file should end with a _.aac_ extension.
 - The hardware volume controls are wired up to the media volume while any Media objects are alive. Once the last created Media object has `release()` called on it, the volume controls revert to their default behaviour. The controls are also reset on page navigation, as this releases all Media objects.
 
 ### iOS Quirks