Is there anyway to store audio on an iphone app and then grab that audio file and play it through code. Does anyone have a tutorial to point me to do something like this?
Check the AVAudioPlayer class here http://developer.apple.com/iphone/library/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/AudioandVideoTechnologies/AudioandVideoTechnologies.html#//apple_ref/doc/uid/TP40007072-CH19-SW1
Should tell you what you need to know.
Related
I want to make an app for the iPhone with the ability to record video. One thing I want to do with the video once it's recorded, is to take the audio from it and alter it, such as make it sound feminine or masculine etc. I've never done this before but is it better to use AVFoundation or UIImagePickerController. I've read that the UIImagePickerController is easier to use but will it allow be to extract and edit the audio of the recorded video and put it back in?
Any help or suggestions as to how to approach this are appreciated.
Thanks
It is easiest to capture with UIImagePickerController if you do not need to alter it live. Once the video is captured and you have altered the audio track somehow, write it again using AVFoundation's AVMutableComposition and an audio mix.
Please I know how to play a sound in AVAudioPlayer but I would like to know how to give it a list of on-disk files to play one after the other (play list)
Anyone has any idea?
You have to manage this by yourself, using the 'audioPlayerDidFinishPlaying' method to know when the current song is over, and when to start a new one.
The Apple "AddMusic" sample program does exactly this, setting up a playlist of audio files using MPMusicPlayerController and AVAudioPlayer to do most of the work.
Does anyone knows how to override the iPhone microphone with the content of an audio file?
Imagine a scenario where you are in a call and you wants to play some short audio to the other person hear it.
So, it would be necessary put the microphone (hardware) on hold, and write the content of the audio file into the mic buffer, using a delegate, after the audio finish the delegate would return the normal state, where the mic write on its buffer.
Is it possible?
Thanks!
PS: I am not sure about what tags to put for this question, so if someone knows which frameworks would be necessary to be used, or any tag suggestion, let me know that I change the them.
This isn't possible with the current SDK.
The best you can do is to get the user to put the phone into Speakerphone mode, then open your application and then play the sound at loud volume. The microphone would then pick it up.
Is it possible to play audio and video file at a same time? I want to play different audio file and video file at a same time and also want control for both, so is it possible?
Sorry, not that I know of. The movie view automatically stops all audio files and takes up the whole screen, so you are forced to listen to the audio for the video.
If the audio is part of the video file, yes.
If it's an MP3 file or some other external type how are you planning on playing it? The phone might allow this to happen depending on what you're up too.
You might be in luck soon though...
Another helpful link is here.
I want to use AVAudioPlayer to play MP4 files from iTunes generator. I could use UIWebView to play it and it worked, but I want to put an image of my choice on the background of the player instead of the "QuickTime"-logo.
Here is an example of the m4p file I want to play with AVAudioPlayer.
If your question is, "can someone help me figure out how to use AVAudioPlayer," then I'd recommend taking a look at Apple's avTouch sample app, the documentation for AVAudioPlayer, and the guide Getting Started with Audio & Video.
When it happened to me I had a missing '/' on the end of my url. Adding that cleared me right up.