When I call the MediaPlayer.Stop() method The Music Player stopped, but I still can see the last song's information in the volume panel like this: Screenshot
What can I do if I want to hide or close it?
Thanks!
I believe you want to use the BackgroundAudioPlayer class and BackgroundAudioPlayer.Track property from the Micrsoft.Phone.BackgroundAudio namespace. You can clear the que of tracks being played by the background audio player and shown on the Universal Volume Control (UVC) by setting AudioTrack to Null. The reason you're still able to see the last played song is because it's still in the AudioTrack que. Also, look into MediaHistory and MediaHistoryItem class. These classes allow you access to the Music Hub for the phone. I got all my information from the MSDN documentation and an example of a BackgroundMediaPlayer, so follow these links for more information:
BackgroundAudio Namespace
BackgroundAudioPlayer Class
BackgroundAudioPlayer Example
Related
I have a app where I play different code-generated sounds. I place these sounds in a AudioBufferSourceNode.
I allow the the user to choose what output device to play the sound through, so I use a MediaStreamAudioDestinationNode with its stream used as the source for an Audio Element. This way when the user chooses an audio output to play the sound to, I set the Sink Id of the Audio element to the requested audio output.
So I have AudioBufferSourceNode -> some Audio Graph (gain nodes, etc) -> MediaStreamAudioDestinationNode -> Audio element.
When I Play the first sound, it sound fine. But when I create a new source and connect it to the same MediaStreamAudioDestinationNode, the sound is played with the wrong pitch.
I created a Fiddle that shows the problem.
Is this a bug, or am I doing something wrong?
The problem was identified based on the OP Chrome Ticket.
It seems to come from the lack of sync between AudioElement and its source AudioNode (AudioBufferSourceNode, OscillatorNode, etc.) when you pause the source and play it back again.
The solution is to always call AudioElement.pause() and AudioElement.start() alongside your source stop and start.
https://jsfiddle.net/k1r7o0xj/3/
It's possible to dynamically change your graph layout by using .connect() and .disconnect(), even when audio is playing or sent through a stream (which could even be streamed over WebRTC).
I couldn't find a reference in the spec, so I'm pretty sure this is taken for granted.
For example, if you have two AudioBufferSourceNodes bufferSource1 and bufferSource2, and a MediaStreamAudioDestinationNode streamDestination:
bufferSource1.connect(streamDestination);
//do some other things here, and after some time, switch to bufferSource2:
//(streamDestination doesn't need to be explicitly specified here)
bufferSource1.disconnect(streamDestination);
bufferSource2.connect(streamDestination);
Example in action.
Edit 1:
Proper implementation:
According to the Editors Draft on the Audio Output API, it is planned/will be possible to choose a custom audio output device for the AudioContext as well (by means of new AudioContext({ sinkId: requestedSinkId });). I couldn't find any info on the progress, and even found a related discussion which the asker apparently read already. According to this and (many) other references, it doesn't seem te be an easy task, but it's planned for WA V1.
Edit:
That section has been removed from the API Draft, but you can still find it in an older version.
Current workaround:
I played around with your workaround (using a MediaStreamAudioDestinationNode and Audio object), and it seems to be related to nothing being connected. I modified my example to toggle a single buffer (similar to your example but with an AudioBufferSourceNode), and observed a similar frequency drop. However, when using a GainNode inbetween and setting it's gain.value to either 0 or 1, the frequency drops disappeared (this isn't gonna be the solution if you want to create and connect new AudioBuffers dynamically).
I understand how to record microphone input in AS3 from this doc.
Is it possible to record sound exactly as they are being output/played?
The reason is I applied some sound transform (via the global SoundMixer) to sounds that are currently playing; and I also want to record this sound data while it is being played.
I just saw this question, to clarify, I am not trying to record just all sounds on the user's computer (which is not possible). My flash app has a Youtube player in it (via their AS3 API), and it's playing some sounds. I applied transforms using SoundMixer.soundTransform, and I want to record what's being played when the user is playing it.
Thanks in advance.
Just a passing suggestion.. on my desktop it seems ABLE to record sound into Flash from a different tab playing Youtube (HTML5).. I don't know how it's doing that!!
I allow microphone here.. (none actually plugged in, and speaker out has in-ear headphones)
http://code.tutsplus.com/tutorials/create-a-useful-audio-recorder-app-in-actionscript-3--active-5836
PS: Anyone trying this must reduce Windows volume since anything above 10-20% is distorted audio into the Flash app.
And this HTML5 youtube trailer was recorded fine into the Wav file produced by Flash app above
http://www.youtube.com/watch?v=MVt32qoyhi0
So after a quick search it seems my Realtek Audio is classed as a Full-Duplex soundcard and also within its own control panel I have an option called "Multi-streaming" which is enabled/ticked. I think Full-Duplex is enough to do this though. Try options within your soundcard's own settings software. Don't know about your end-users. Some hardware will do it, some wont, there is no all-round solution outside of AIR (which makes desktop apps out of your AS3 code).
I'm programming an app which is able to play music in background. I'm using mediaplayer and Song(class xnalib), well since is not possible put file into mediaplayer.queue I can't figure out how can play next song in the "playlist".
I'll try to make this scenario more clear with an example:
I play music with mediaplayer: MediaPlayer.Play(MysongArray[CurrentIndex]);
well now user put my app in background.
but when MysongArray[CurrentIndex] song is ended how play next song if my application is in background?
thanks
That's probably because you are playing a Song not a SongCollection - once it's ended it stops playing. Source: MSDN1, MSDN2. I belive (thounght I've not tried it) that you should create SongCollection (if it's possible) or Manage existing one. But this can be a hard job as #ToniPetrina answered here.
As for me I would consider using Background Audio Player and How to play.
Maybe this will help if you decide to use BAP - example how to use playlist.
You cannot do that since background player can only stream or play from isolated storage. You cannot play songs from MediaLibrary.
The flash player has a little window that can be opened (similar to flash->settings) telling the user to update the player if the movie loaded is for a more recent version. How can you instruct the player to do this? ITV have managed it with their catchup-tv player.
Context: I am allowing users to copy flash into their PowerPoint presentations and would like to tell them to update their flash player if necessary. I am not embedding a web page in the power point so no JS can be run for checking etc (because I know this is not necessary).
Thanks in advance
For getting the current version of flash:
var version:String = Capabilities.version;
I don't know what ITV has done, but I don't know of any way of forcing the player to show that box, although it may do it automatically.
EDIT:
I just found a complete blog post that answers this.
There is no way to force the window to open itself. It's a user defined setting:
Have a look at the Security class. I have used it in some Flash to prompt users to increase storage limits. The panels that you can show are found in SecurityPanel. However, this may not be the way to prompt for outdated Flash version. (If you are looking to customize these panels, that is off limits.)
You can actually test the browser/Flash version in Javascript, so there really is no point in loading Flash to tell the user to upgrade Flash.
Has anyone build a AS3 Camera-Select-algorithm, ready to use?
With MacBooks you have the problem that the build-in webcam is not rightly choosen from the webplayer.
You have to select the USP-Cam by youself from the list
DV Video
IIDC FireWire Video
USB Video Class Video
by
camera = Camera.getCamera("2");
THNX!
I found kind of a workaround here
You cant actually set the camera programatically. The best you can do is prompt the user to set it next to a video panel to show them if the camera they've chosen actually works. example here: http://www.neave.com/webcam/
to prompt them to change cameras you use:
Security.showSettings(SecurityPanel.CAMERA)
there is no event to wait for, though you can poll your video panel's bitmap data for changes and prompt the user behind the security panel when you think they've chosen the right camera.
Having done battle with this problem, I would suggest that everyone use this library.
https://github.com/cataclysmicrewind/CameraDetection/
Flash + webcam should = easy + awesome.
Unfortunately, it is pain + suffering.