We've tried this. The sound is so percussive (I think) that we only get
a little relief. Also, it won't work when we release the app to the
wild as it is intended to be used by people all over the world to build
a large scale observatory. Mucking/altering the speaker of the phone
isn't going to appeal to the widest possible audience.
/J
On 09/02/2012 02:40 PM, Fred Niggle wrote:
IF all else fails : put a plug of blu-tack or similar firmly into the
hole the sounds comes from... it solved the proplem for myself, and
its easy to remove with a toothpick !
On 2 September 2012 22:02, Jeffrey Peacock <jeffp.ea...@gmail.com
<mailto:jeffp.ea...@gmail.com>> wrote:
I am involved in a project to use camera enabled Android devices
to detect cosmic ray events (
http://www.distributedsensorweb.org/wiki/index.php/DECO). It is
enjoying some modest funding from the American Physics Society and
interest from Fermi Labs and Standford Univ.
The intent of the app is to run while the phone is plugged in and
charging, like while the user is sleeping. As such the shutter
sound must be defeated. In fact, even if you were running it on
your desk while working the shutter sound is so annoying as to
inspire you to reach for a hammer.
For most phones we have been able to make use of the mechanisms
seen in previous posts: mute streams and/or set volume to 0.
However, for a recent phone, the LG Optimus Elite (were using low
cost Virgin Mobile devices as some of the test devices to reduce
costs), none of the old tricks work: the shutter sound always
plays. BUT!!! I can download a camera app from the Google Play
-- aptly named SilentCamera -- which will take pictures, well,
silently. And whatever solution it is employing is not using the
MODIFY_AUDIO_SETTINGS permission.
I have already burned several hours researching and trying a
variety of things. As I've indicated I have tried muting and
setting volume to 0 for all streams, just before the
camera.takePicture() call. And have tried to do the same in
onShutter(). What I have learned is (according to the logs) that
the camera is playing the shutter sound BEFORE the onShutter() call.
Obviously, I am hoping someone on the list can help.
Thanks.
/J
Note: The LG Optimus Elite is running 2.3.7
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