I'm looking to make an Android app that can process music being played by another app. More specifically I want to analyze the raw audio. I've done some research and looked around, but I'm beginning to think this isn't possible, and maybe for good reason.
Does anyone have any ideas on how I might be able to achieve this capability?
as your requirement is to analyse all aps audio and want to process raw audio too.only one possibility is there which is to start recorder in background service and analyse audio all the time like many of the call recorder app on play store is doing to record a call.
it does have some drawbacks too
background noise
you will not able to know when music starts and when stops.
Related
In my current project I have an Audio file which plays all the time. As soon as I click the record button the audio stops. When I disable the microphone it works but I actually want to record my own voice (like a karaoke) This Problem only occurs only on Android.
Is there any hack to fix this Problem?
Just worked on a filter where I had to build a karaoke style gameplay, what I noticed was Spark does not like playing audio AND recording on mic as it probably causes weird artifacting if not implemented properly. It seems like something that will be added line.
Possible fixes to get your filter working for now, add instructions to use the filter with headphones, connecting to an external audio device will let you play audio and record using the mic at the same time. This works on android, not on iOS. You have to give players visual cues to sing along or whatever your objective maybe.
Hope this is sorted out and fixed in the coming updates, really handicaps the kind of experiences possible on the platform.
Hope this helped.
I was wondering how to exactly stop all other music that may be playing when my app is opened whenever there is music being played in my application. I have a couple instances where I just have sound effects, so is there anyway I can stop music that may be playing already whenever these sound effects pop up? I know I'm not giving any code, however, I have no idea how to approach this and haven't found many other questions asking similar things.Thanks!
Look at the AudioManager.requestAudioFocus API. Remember to release the focus when you're done with it, or other apps may not be able to play sounds correctly.
My app plays an audio file. I want my app to pause the audio playing if another apps starts to play audio. I don't want the two audio sounds mess up each other. My app will resume the audio playing after the other app finishes playing its audio. How can I make it? Thanks.
Depending on how your application is running ie. while app is running in foreground (users is looking at your screen) or if your running a "service" which is currently in the background and you wish music to continue playing (songza, slacker radio etc.) how you handle these things will be different. Android uses internal system states to determine which apps should be out-putting audio to the speaker. All this is handled by the audio manager requestAudioFocus() releaseAudioFocus() will be the system calls you will want to look at the most. For a more detailed explanation see android developer api where you this is explained and documented quite well http://developer.android.com/guide/topics/media/mediaplayer.html
I've decided to try to make a little Android application that streams live audio from my server. I'm using a HTML5 audio tag for the audio. But, on some devices when the user goes to the browser or their messages the music stops playing. Would I need to create an ongoing notification so the audio would continue to play? Or, would something else be better? I'm using PhoneGap too, I don't know if there's a plug-in out there that I've missed that could solve this. I'm trying to learn all of this on my own, but I'm just confused at this point.
I think it ended up being a problem with the app manager just closing the app.
My music application constantly plays music in the background, however I'd like to be able to detect when another application starts playing audio (such as the YouTube app) so I can pause/mute/stop the audio in my application.
This will allow a user to continue browsing the web whilst listening to music, but then if they wish to watch a video at any point, they can do so without audio conflict.
One solution might be to listen for a broadcast which states when an application begins using the AudioManager. Does such an Intent Action exist?
Edit: As in the answer provided below, there appears to be a method of detecting the loss of audio focus in 2.2 with AudioManager.OnAudioFocusChangeListener.
Great, but is there a solution for the more common versions of Android? Ideally 1.5+.
http://developer.android.com/reference/android/media/AudioManager.OnAudioFocusChangeListener.html
this thread also has additional information that might get you heading in the right direction.
http://groups.google.com/group/android-developers/browse_thread/thread/db6822d84feaac6/219d8cba07795c61?hl=en&lnk=gst&q=OnAudioFocusChangeListener#219d8cba07795c61