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a2dp: Set the default A2DP bitrate to high quality

Allows bluedroid to calculate the proper A2DP bitpool size.
This resolves the main A2DP audio quality issues with Android 4.2,
but does not address the difference in audio output gain/volume as
compared with Android 4.1.

Setting the output volume level to approximately 80% in conjunction
with this change seems to result in comparable audio quality

Change-Id: I7a7c9af4e10545a47e15b4002d6554acab46e6c4
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1 parent 253ffb6 commit e6a380dbe5c269cf4b5ba95935e4e40cfb133032 @djp952 djp952 committed with Gerrit Code Review Sep 26, 2013
Showing with 2 additions and 2 deletions.
  1. +2 −2 btif/src/btif_media_task.c
@@ -153,8 +153,8 @@ enum {
#define BTIF_MEDIA_BITRATE_STEP 5
#endif
-/* Middle quality quality setting @ 48 khz */
-#define DEFAULT_SBC_BITRATE 237
+/* High quality quality setting @ 48 khz */
+#define DEFAULT_SBC_BITRATE 328
#define SBC_HIGH_QUALITY_BITRATE 345
#ifndef A2DP_MEDIA_TASK_STACK_SIZE

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