Is there any explanation about playing an audio from URL in windows phone in background using BackgroundAudioPlayer.? Why has it to be so complex to code this thing in Windows Phone. Can I get any code, any example, any explanation, any sample, any preview, anywhere which can give a proper explanation about this.? Please someone explain or help me with some good link to its explanation.
There is a sample for playing background audio from a URI at http://msdn.microsoft.com/en-us/library/windowsphone/develop/hh202978(v=vs.105).aspx
I found this very useful when I first did it.
Related
I m developing an app which can record audio stream.
I want to know that is it possible to record that audio in background, i,e when the application is in deactivated mode?
I have already tried to do that in many different ways,but its not helping out.
Please suggest me some way to do such...
Thank you.
As mentioned in the comments, it's not possible to record in the background.
Your app must be running in the foreground for it to be able to record audio using the microphone. For an overview of all the audio recording options, please refer to this tutorial on the Nokia Developer Wiki.
Also, an app will not run when the phone is locked - it is suspended. So if your app was recording, it would stop when the phone is locked. You can change this behaviour with IdleDetectionMode.Disabled which means your app keeps running even though the phone is locked.
Haven't implemented it before, but classifying it as a VOIP app could be the way to go:
http://msdn.microsoft.com/en-us/library/windowsphone/develop/jj207046(v=vs.105).aspx
I'd like to send a scrobble to last.fm, but don't know how to do this. I searched for the last.fm-API for C#. If I want to add it to the project it says it was not programmed for Windows Phone (of course). How can I still scrobble songs?
Official Documentation
http://www.lastfm.ru/api/scrobbling
Just reading it now too...
I know that Microsoft hasn't officially supported doing any video capture applications as of yet. I've found the Clarity Consulting blog entry that highlights how to use the camera through Silverlight (entry is here: http://blogs.claritycon.com/kevinmarshall/2010/12/23/wp7-camera-access-flashlight-augmented-reality-and-barcode-scanning/). But, as of yet, I have been unsuccessful in porting the code to be used by an XNA framework.
Has anyone had any luck either using the Windows Phone 7 camera in an XNA application? If so, care to share your wisdom?
Thanks!
Generally you can access the camera the same way you do it in Silverlight - there is the CameraCaptureTask - you need to add a reference to Microsoft.Phone first and then call it from the game.
Microsoft.Phone.Tasks.CameraCaptureTask task = new Microsoft.Phone.Tasks.CameraCaptureTask();
task.Completed += new EventHandler<Microsoft.Phone.Tasks.PhotoResult>(task_Completed);
task.Show();
That would be for static capture, and your event handler is like this:
void task_Completed(object sender, Microsoft.Phone.Tasks.PhotoResult e)
{
// Do something with e.ChosenPhoto
}
Currently, video recording is done through the undocumented way - this will most likely get your app submission disapproved from the Marketplace, but it is possible nonetheless.
What's done that way is a MP4 file is constantly updated in the IsolatedStorage as the recording is in progress. But then again, there are methods present to include the file in the media library.
Think you are a bit unclear about the whole microsoft and supporting cameras.
Microsoft released not too long ago Expression Encoder 4 which allows you not only to video screen capture your screen but as well access all devices connected to your pc.
I would believe this would be much more ideal then being restrained to only using a windows 7 phone especially for an xna game.
Hope this sheds some light.
Nowadays you can use FileSink to save video from a CaptureSource like VideoCaptureDevice into a file.
http://msdn.microsoft.com/en-us/library/system.windows.media.filesink%28v=vs.96%29.aspx
http://msdn.microsoft.com/en-us/library/system.windows.media.capturesource%28v=vs.96%29.aspx
http://msdn.microsoft.com/en-us/library/system.windows.media.videocapturedevice%28v=vs.96%29.aspx
I am developing an application which access my audio input device and record audio from my microphone.
Here when i am pressing START button it have to record audio from microphone and have to stop recording when pressing STOP button.
My device is Lynx-AES16 and i got driver from there site.
In windows i am accessing the machine(Lynx) by using direct-show SDK(Graph edit).
Is there any similar tool like direct-show is available. I checked with AUAudio and IOkit but didnt understood that much.
Can anyone provide some sample or some useful links. Apple link is not good for a starter
Look at the CoreAudio sample code at developer.apple.com. There is plenty of useful code there.
In particular look at the RecordAudioToFile example.
I am trying to make a simple application which will store the sound said by user , say on click of record button and will play it back to him/her , say on click of play button.
Can anyone suggest me some appropriate way to do this ??
Thanks,
Miraaj
You can use QuickTime Kit's capture APIs to record a movie of the audio, and QTMovie (from the same framework) to convert it to a more conventional format for audio files and to play back both the intermediate file and the converted file.
There used to be a QuickTime Kit Programming Guide, but it didn't cover capturing and is now gone from developer.apple.com. You should file a bug against the docs.
This answer will work in a Cocoa (Mac) app. If you meant to ask about the iPhone, you should re-tag your question, as the solution will be completely different for a Cocoa app vs. a Cocoa Touch (iPhone) app.
I used direct sound to create an entire internet phone application a few years ago. Your question is far simpler, you won't have to deal with the circular buffer as critically. Direct sound is pretty main stream and you can find a lot of help with it in forums, and it's free!