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  • recording tutorial needed

    - by shishir.bobby
    Hi all, i wonder,how can i record while playing an audio or something withing my app, for ex i hv a guitar app,i can play guitar withing my app, now i hv a record button,when user pushes the click button, recoding should be started, and it should start recording,whatever the user isplaying on the guitar, within the app. in between that,user can pause ,play or stop recoring.. after done,he must be able to play whole recoring... any help would be appreciated. regards shishir

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  • Audio looping in Objective-C/iPhone

    - by Neurofluxation
    So, I'm finishing up an iPhone App. I have the following code in place to play the file: while(![player isPlaying]) { totalSoundDuration = soundDuration + 0.5; //Gives a half second break between sounds sleep(totalSoundDuration); //Don't play next sound until the previous sound has finished [player play]; //Play sound NSLog(@" \n Sound Finished Playing \n"); //Output to console } For some reason, the sound plays once then the code loops and it outputs the following: Sound Finished Playing Sound Finished Playing Sound Finished Playing etc... This just repeats forever, I don't suppose any of you lovely people can fathom what could be the boggle? Cheers!

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  • HTML5 video on iPad

    - by mrollinsiv
    I have a dynamic video gallery and it works great on a computer. When moving to an iPad, the video starts loading and it shows the cannot play icon. Instead of this I'd rather the video not show until it's ready to play. I have tried to add events listeners for "canplaythrough" and "canplay" and when they occur for the video to fade in then play. Does the iPad not support these events? new_video = document.createElement('video'); new_video.setAttribute('class', 'none'); new_video.setAttribute('width', '568'); new_video.setAttribute('height', '269'); new_video.setAttribute('id', 'video'+video_num); current_video.insertBefore(new_video, video_controls); new_video.load(); new_video.addEventListener('canplaythrough', function() { $('#video'+video_num').fadeIn(100); new_video.play(); });

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  • AVAudioPlayer working in Simulator, but not on device

    - by cannyboy
    My mp3 playing code is: NSError *error; soundObject = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:audioPathString] error:&error]; if (soundObject == nil) NSLog(@"%@", [error description]); soundObject.delegate = self; soundObject.numberOfLoops = 0; soundObject.volume = 1.0; NSLog(@"about to play"); [soundObject prepareToPlay]; [soundObject play]; NSLog(@"[soundObject play];"); The mp3 used to play fine, and it still does on the simulator. But not on the device. I've recently added some sound recording code (not mine) to the software. It uses AudioQueue stuff which is slightly beyond me. Does that conflict with AVAudioPlayer? Or what could be the problem? I've noticed that as soon as the audiorecording code starts working, I can't adjust the volume on the device anymore, so maybe it blocks the audio playback?. EDIT The solution seems to be to put this in my code. I put it in applicationDidFinishLaunching: [[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayAndRecord error: nil]; UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker; AudioSessionSetProperty (kAudioSessionProperty_OverrideAudioRoute,sizeof (audioRouteOverride),&audioRouteOverride); The first line allows both play and record, whilst the other lines apparently reroute things to make the volume louder. All audio code is voodoo to me.

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  • Python script, runs well, but not perfectly, debugging help.

    - by S1syphus
    What it does (sort of)... or is meant to, the script reads from a csv file that contains information on sound files and create a play list exactly 60 minutes long. An example csv, contains: their title, duration (in seconds), minium total time to be played (in minutes) An example is: Soundfoo,120,10 Soundbar,30,6 Sounddev,60,20 Soundrandom,15,8 The script works out the minimum instances of plays, take 'Soundfoo' for example, the length of each sample is 120 seconds and the minimum time to be played is 10 minutes, so basic maths 10*60/120 gives the number of instances the song is to be played, in this case 5. It is meant to take minimum number of instances and spread out equally from each other; so there will never be a period where for example Soundbar is played twice in a row. Then if the minium instances of each song has been used, and there is still time with in the 60 min, how is it possible to tell it to go back and fill the time by selecting each sound and including it till the 60 min is filled while remaining sparsely populated. Heres the issue(s)! The script fails to calculate the actual time require to play all the sounds in a file and the total time of the playlist, the thing is tho it doesn't get it wrong all the time maybe 3/5 times, even if I run it on the same csv file it will give me different answers. Here is the file I shall run the script on e for sake of ease to see the issue: Sound1,60,10 Sound2,60,10 Sound3,60,10 Sound4,60,10 Sound5,60,10 Sound6,60,10 I'll do it three times and post the results: 1 Required playtime in minutes: 60 Actual time in minutes to play all required ads: 62 Total playtime in minutes: 62.0 2 Required playtime in minutes: 60 Actual time in minutes to play all required ads: 71 Total playtime in minutes: 71.0 3 Required playtime in minutes: 60 Actual time in minutes to play all required ads: 60 Total playtime in minutes: 60.0 Relevant Code: pastebin.com/demkBXk6 And finally... in context: http://pastebin.com/demkBXk6 If you made it down to here, thanks for staying and reading, kudos.

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  • Steaming a non-PCM WAV file to a SilverLight application

    - by Satumba
    Hi, I would like to allow users to play recorded WAV files that stored on a server back to a Silverlight application as a client to play them. I saw that there is a way to play a WAV file on Silverlight (here), but when i tried to impliment it, i got an error playing the file because it is not in PCM format but encoded. The files that i'm trying to play are encoded with a special encoder, so i thought that the only way is to decode the WAV file on the server and stream it back to the client. The limitation is that the decode process should occur in real time because it is not reasonable to convert all the WAV files that exists. Is it possible to do it? Which streamer can i use? (Windows Media Service can help here?) Does somebody has any experience with such a scenario? Appreciate your help.

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  • Streaming a non-PCM WAV file to a SilverLight application

    - by Satumba
    Hi, I would like to allow users to play recorded WAV files that stored on a server back to a Silverlight application as a client to play them. I saw that there is a way to play a WAV file on Silverlight (here), but when i tried to impliment it, i got an error playing the file because it is not in PCM format but encoded. The files that i'm trying to play are encoded with a special encoder, so i thought that the only way is to decode the WAV file on the server and stream it back to the client. The limitation is that the decode process should occur in real time because it is not reasonable to convert all the WAV files that exists. Is it possible to do it? Which streamer can i use? (Windows Media Service can help here?) Does somebody has any experience with such a scenario? Appreciate your help.

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  • Detecting if music is playing?

    - by Flafla2
    Hi! My app involves music(iPodMusic), and there is a UISwitch toggling play/pause. My goal is to be able to detect if music is playing, so that therefore the play/pause switch can say 'play' when music is playing and 'pause' if it isn't.

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  • UserControl as ListBoxItem and IsSelected

    - by mattjf
    I have a usercontrol that I want to use as a ListBoxItem. <ListBox.ItemTemplate> <DataTemplate> <local:MyUserControl/> </DataTemplate> </ListBox.ItemTemplate> I'd like to play a storyboard when the usercontrol is unselected. <UserControl.Resources> <Style TargetType="{x:Type UserControl}"> <Style.Triggers> <DataTrigger Binding="{Binding IsSelected, RelativeSource={RelativeSource AncestorType={x:Type ListBoxItem}, Mode=FindAncestor}}" Value="False"> <DataTrigger.EnterActions> <BeginStoryboard Storyboard="{StaticResource OnMouseLeaveSB}"/> </DataTrigger.EnterActions> </DataTrigger> </Style.Triggers> </Style> </UserControl.Resources> But the storyboard is never firing. Is there a better way to do this? Edited to Add: What I am really trying to accomplish this this: When the mouse is over the UserControl, I want to play a storyboard (OnMouseEnterSB). When the mouse leaves the UserControl, I want to play another storyboard (OnMouseLeaveSB). I have all this working fine. When the UserControl is selected, however, and the mouse leaves, I do NOT want to play the storyboard. Finally, when the UserControl is unselected, I want to play the OnMouseLeaveSB storyboard.

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  • jQuery,Input buttons work in markup, but not when prepended?

    - by thatryan
    I have to buttons, image input that work fine when in the markup like this, <input type="image" class="play" src="images/play.png" /> <input type="image" class="pause" src="images/pause.png" /> But as soon as I try to prepend() it to a generated they still appear, but the click function does not work anymore. $('.gallery-nav').prepend('<input type="image" class="play" src="images/play.png" /><input type="image" class="pause" src="images/pause.png" />'); Any idea why? Thank you.

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  • JWPlayer plays videos at 3x speed on the first run, then works fine in subsequent runs on the same p

    - by Josiah Kiehl
    Go here: http://nano.materials.drexel.edu/research/videolibrary For some bizarre reason, the videos will play at 3x speed on the first run through, but then will play at normal speed each subsequent play. This doesn't happen all the time, and it's not always the same video(s) that do it. I'm utterly baffled. I've reconverted the videos from m4p to flv (using BitComet's converter) several times, double checking the settings each time through with no change to the behavior. Anyone have a clue what's going on?

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  • off a sound effect with NSUserDefaults

    - by Momeks
    i try to off a sound effect on my app play method is [myMusic play]; ' BOOL soundIsOff = [defaults boolForKey:@"sound_off"]; //the problem is here //xcode compiler doesn't copile this code [myMusic play] = soundIsOff; sound code : ///sound effect ', NSString * musicSonati = [[NSBundle mainBundle] pathForResource:@"sound" ofType:@"wav"]; myMusic = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:musicSonati] error:NULL]; myMusic.delegate = self; myMusic.numberOfLoops = 0;

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  • AVAudioPlayer not unloading cached memory after each new allocation

    - by Rob
    I am seeing in Instruments that when I play a sound via the standard "AddMusic" example method that Apple provides, it allocates 32kb of memory via the prepareToPlay call (which references the AudioToolBox framework's Cache_DataSource::ReadBytes function) each time a new player is allocated (i.e. each time a different sound is played). However, that cached data never gets released. This obviously poses a huge problem if it doesn't get released and you have a lot of sound files to play, since it tends to keep allocating memory and eventually crashes if you have enough unique sound files (which I unfortunately do). Have any of you run across this or what am I doing wrong in my code? I've had this issue for a while now and it's really bugging me since my code is verbatim of what Apple's is (I think). How I call the function: - (void)playOnce:(NSString *)aSound { // Gets the file system path to the sound to play. NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:aSound ofType:@"caf"]; // Converts the sound's file path to an NSURL object NSURL *soundURL = [[NSURL alloc] initFileURLWithPath: soundFilePath]; self.soundFileURL = soundURL; [soundURL release]; AVAudioPlayer * newAudio=[[AVAudioPlayer alloc] initWithContentsOfURL: soundFileURL error:nil]; self.theAudio = newAudio; // automatically retain audio and dealloc old file if new m4a file is loaded [newAudio release]; // release the audio safely // this is where the prior cached data never gets released [theAudio prepareToPlay]; // set it up and play [theAudio setNumberOfLoops:0]; [theAudio setVolume: volumeLevel]; [theAudio setDelegate: self]; [theAudio play]; } and then theAudio gets released in the dealloc method of course.

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  • iPhone AVAudioPlayer failed to find codec

    - by Anthony
    Hello, I am writing an app that downloads a wav file from a server and needs to play that file. The files use the mulaw codec with 2:1 compression. These wav files are dynamically created by a seperate process so there is no way for me to preconvert the files to a different format or codec, I need to be able to play them as is. I am using an AVAudioPlayer instance initialized as follows: NSURL *audioURL = [[NSURL alloc] initWithString:@"http://xxx.../file.wav"]; NSData *audioData = [[NSData alloc] initWithContentsOfURL:audioURL]; AVAudioPlayer *audio = [[AVAudioPlayer alloc] initWithData:audioData error:nil]; [audio play]; However, when the play method executes, I get the following Console Output when executing on the Simulator: AudioQueue codec policy 1: failed to find a codec of the requested type I also tried saving the downloaded data to a local file and using a file URL, however that yeilds the same results. The downloaded file does play fine on both Mac and Windows based desktop media players. The SDK docs state that the mulaw codec is supported on the iPhone, so I am unsure why it is failing to find it. Any assistance would be greatly appreciated. Thanks.

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  • Html5 Audio plays only once in my Javascript code.

    - by Poul
    I have a dashboard web-app that I want to play an alert sound if its having problems connecting. The site's ajax code will poll for data and throttle down its refresh rate if it can't connect. Once the server comes back up, the site will continue working. In the mean time I would like a sound to play each time it can't connect (so I know to check the server). Here is that code. This code works. var error_audio = new Audio("audio/"+settings.refresh.error_audio); error_audio.load(); //this gets called when there is a connection error. function onConnectionError() { error_audio.play(); } However the 2nd time through the function the audio doesn't play. Digging around in Chrome's debugger the 'played' attribute in the audio element gets set to true. Setting it to false has no results. Any ideas?

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  • How does Rails find models and controllers? How can I get it to load more models?

    - by David
    I'm trying to create a non-ActiveRecord model in app/models/gamestate.rb. Then inside my controller (PlayController) I should be able to do GameState.new, right? No go: NameError (uninitialized constant PlayController::GameState): app/controllers/play_controller.rb:23:in `play' (at least in the development environment) But! If I do have a model called app/models/play.rb, then it's automatically loaded and I can do Play.new. So my question is: how does Rails know which classes to load? What sort of name mangling does it do to get from play#action to PlayController to app/controllers/play_controller.rb to app/models/play.rb? It seems awfully fragile, but maybe a better understanding of how this works would help. And finally, how can I get it to load app/models/gamestate.rb?

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  • HTML5 Video Tag in Chrome - Why is currentTime ignored when video downloaded from my webserver?

    - by larson4
    I want to be able to play back video from a specific time using the HTML5 video tag (and currently only need to worry about Chrome). This is possible by setting the currentTime property of a video element. That works fine in Chrome with a video sourced from html5rocks.com, but is ignored when the same file is loaded from my own local webserver. Using the sample code from http://playground.html5rocks.com/#video_tag, I have arrived at the following HTML: <!DOCTYPE html> <html> <body> <video id="video1" width="320" height="240" volume=".7" controls preload=true autobuffer> <source src="http://playground.html5rocks.com/samples/html5_misc/chrome_japan.webm" type='video/webm; codecs="vp8, vorbis"'/> </video> <input type=button onclick="play()" value="play"> <input type=button onclick="setTime()" value="setTime"> <input type=button onclick="pause()" value="pause"> <script> var play=function() { document.getElementById("video1").play(); } var setTime=function() { document.getElementById("video1").currentTime=2; } var pause=function() { document.getElementById("video1").pause(); } </script> </body> </html> Using Chrome, if you Wait for the video to download for a bit (until the progress bar is about 10% in) Press setTime - you should notice the time jump to 2 seconds press play ...the video will start at 2 seconds in. But if I download the webm file in the source src to my local webserver, and change src to point locally: <source src="chrome_japan.webm" type='video/webm; codecs="vp8, vorbis"'/> ...then setting currentTime is complete ignored. No errors are showing in the developer tools console. Now, my webserver is serving this with mime type "video/webm", but it will be served like any old file -- not streamed. Do I need a webserver that streams in some specific way? What else could be at fault here? Note: The webserver is a proprietary platform and won't have any of the same exact settings or controls one might expect of Tomcat or some other commonly used webserver, though there may be other ways to achieve the same effect.

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  • Need help with video streaming with web-embedded Windows Media Player Component

    - by Ron
    Hello, I need to be able to play a .wmv video in a Windows Media Player component on a web page starting at a particular specified point in the video right away. I can embed the component and play the video. The problem is that even if I specify the location with The PARAM “currentPosition”, the video starts to play from the beginning. This appears to be because the requested position in the video has not been loaded yet. If I wait until the video has been loaded to the requested position and refresh the page, it will then play from the requested position. It seems that the video must start loading from the requested position in order to start right away. If this is the correct way, how would I go about doing it? If it is not, what is the proper way to do it? It can obviously be done, because YouTube’s players work like this. Thank you,

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  • Randomly generate sound from onClick and onShake events?

    - by Aaron
    I've literally looked everywhere on the net and found very little clarification on how to do this. Pretty much, I have 8 sound files laid out in an array.xml file and I need to play a randomly chosen file ONCE per or onClick or onShake. First off, what technique should I use to achieve this? ARRAY-RANDOM- STRING-PLAY? RANDOM INT-PLAY? RANDOM INT-STRING-PLAY? Any kind of direction will help greatly cause I'm almost 3 weeks worth of research into this. *NOTE: MediaPlayer mp = MediaPlayer.create(JelloMan.this, R.raw.sound) ...is what I'm stuck on being you can't replace the "R.raw" part with a string...

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  • Toggling audio on click?

    - by angela
    please look at this fiddle http://jsfiddle.net/rabelais/yLdkj/1/ The above fiddle shows three bars that on hover play audios. How do I change this so the music plays and pauses on click instead. Also if one audio is playing and another is clicked how can the already playing song pause? $("#one").mouseenter(function () { $('#sound-1').get(0).play(); }); $("#one").mouseleave(function () { $('#sound-1').get(0).pause(); }); $("#two").mouseenter(function () { $('#sound-2').get(0).play(); }); $("#two").mouseleave(function () { $('#sound-2').get(0).pause(); }); $("#three").mouseenter(function () { $('#sound-3').get(0).play(); }); $("#three").mouseleave(function () { $('#sound-3').get(0).pause(); });

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