diff options
| author | Claudio Takahasi <claudio.takahasi@openbossa.org> | 2013-04-23 14:21:37 -0300 |
|---|---|---|
| committer | Denis Kenzior <denkenz@gmail.com> | 2013-04-23 10:18:47 -0500 |
| commit | dcf2ca0c410911dedfda670dc769c2c3433579cf (patch) | |
| tree | 1b802db1e9fcff30223e227a03e18e6437370860 /doc | |
| parent | 7b56ca27300ee1db445ffa2c140dba09ee53bb26 (diff) | |
| download | ofono-dcf2ca0c410911dedfda670dc769c2c3433579cf.tar.bz2 | |
doc: Add EchoCancelingNoiseReduction to Handsfree
This patch adds echo canceling and noise reduction property to Handsfree
interface, allowing the handsfree unit to disable this feature in the
audio gateway. The HFP spec defines the procedure to turn off echo
canceling and noise reduction only, it is not allowed to enable this
feature from the HF unit.
According to Bluetooth HFP 1.6 spec: By default, if the AG supports its
own embedded echo canceling and/or noise reduction functions, it shall
have them activated until the AT+NREC command is received from the HF
unit. From then on, and until the current Service Level Connection is
dropped for any reason, the AG shall disable these functions every time
an Audio Connection is established.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/handsfree-api.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/doc/handsfree-api.txt b/doc/handsfree-api.txt index 0b5d4215..d6ffca57 100644 --- a/doc/handsfree-api.txt +++ b/doc/handsfree-api.txt @@ -44,6 +44,7 @@ Properties array{string} Features [readonly] supported values are: "voice-recognition" "attach-voice-tag" + "echo-canceling-and-noise-reduction" boolean InbandRinging [readonly] @@ -56,6 +57,15 @@ Properties array{string} Features [readonly] to activate or deactivate the function from the HF, or the AG could autonomously initiate it. + boolean EchoCancelingNoiseReduction [readwrite] + + Non-persistent Boolean property representing whether + echo canceling and noise reduction is enabled in the + AG. This feature can only be disabled once from the + HF unit; the current specification does not allow the + HF unit from enabling this feature on the AG once + it has been disabled. + byte BatteryChargeLevel [readonly] The current charge level of the battery. The value |