You can make a new call on Android OS with a certain contact. But I want to play(stream) certain sound file instead of a microphone. I just want to play sound for callee although caller doesn't hear anything.
Is there any solution?
Related
I basically have an audio application that will be playing some music. I want to be able to pause/stop/mute the music when there is an interrupt.
These interrupts include: GPS directions, Phone Call, GPS, etc. (if there are more audio interupts, please let me know)
I already implemented the phone call interrupt, stops the music when phone call received and plays after phone call ends.
How would I do the other interrupts?
EDIT:
I noticed that Android's Play Music application does this. But I am unable to find the source code of that, not sure if that would be helpful.
Make sure you correctly ask for and release Audio Focus as described here:
http://developer.android.com/training/managing-audio/audio-focus.html
With multiple apps potentially playing audio it's important to think about how they should interact. To avoid every music app playing at the same time, Android uses audio focus to moderate audio playback—only apps that hold the audio focus should play audio.
Basically this allows the framework to handle interrupts properly as you cannot specifically code for every situation.
I am writing a android app which is supposed to play back a audio file when a call is in progress coming from a specific number .. I tried many approaches.. but all went in vein
Separate Thread
Listener on Telephone service
starting a service in parallel
can any one please help me how to proceed regarding this ?
Update :
I am able to play a mp3 file on call recieve and i am able to play it load on speaker.. but how ever loud i play the calling party is not able to listen to it.... is there anyway i can push the speaker stream to call stream
From the api doc here
Note: You can play back the audio data only to the standard output
device. Currently, that is the mobile device speaker or a Bluetooth
headset. You cannot play sound files in the conversation audio during
a call.
So from this and lots of other so answers we can conclude that we can not play an audio during a call process.
But a long time ago from a personal experience with a handset I got a result where the audiotrack was playing while there was a call established and both the voices were heard at the same time. So I think this depends on handsets if it allows it then you can play.
You can try another thing experimentally. play the audio using a different route ( speakerphone or bluetooth).
Another option is to build your custom android build
When you place callers on hold. The application should play music / some custom message to the receiver in the background, till the call is in hold. Once the call becomes active, that music / custom message should be stopped. Is there any API's available to do so ?
If so,Please let me know few steps to take it forward.
Thanks in advance.
Android does not allow you to modify the outgoing audio stream during a call. Even though the call is on hold, it is still considered an ongoing call. The best you can do is to play whatever you want to over the loudspeaker and hope the microphone picks it up.
I am initiating a voice call from my application. Now i want that when the user on the other side picks up the call, i want to play a recorded audio file.
How to go about this? Please help!
I have found a workaround with this. I play an audio file on device's speakers with full sound when the phone state changes to TelephonyManager.CALL_STATE_OFFHOOK
This ensures that the user on the other side can hear the recording.
In simple and clear words you cant stream any sound on an Incoming call
Right now my application lets the user start recording audio and puts an ongoing notification that can pause/restart recording on press using android.media.AudioRecord. All was fine and dandy until I realized that this blocks any other App from using an AudioRecorder (ie google voice search).
Is there a way I can set up a broadcast reciever to detect a call for an AudioRecorder from another app and pause my recording. Alternatively, is there another way to record audio that wont interfere with other Apps that use audio?
Cheers!
I have been looking into this very question for a while now. It seems that there is no clean way of achieving this as there is no broadcast that alerts when another app would like access to the mic.
The way that we have solved it (albeit not cleanly) is we poll what app is in the foreground and get its permissions; if that app has permission to use the mic, we terminate recording until there isn't an app in the foreground with the mic permission.
Although polling is a solution, I would be very interested if anyone has better!