Are these AVAudioSettings right?

Posted by Dyldo42 on Stack Overflow See other posts from Stack Overflow or by Dyldo42
Published on 2010-04-21T08:01:28Z Indexed on 2010/04/21 8:03 UTC
Read the original article Hit count: 392

Filed under:

avfoundation

|

avaudiorecorder

|

iphone-sdk

|

iphone

self.recordSettings = [NSMutableDictionary dictionary];
[recordSettings setValue:[NSNumber numberWithInt:kAudioFormatAppleIMA4] forKey:AVFormatIDKey];
[recordSettings setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey]; 
[recordSettings setValue:[NSNumber numberWithInt:1] forKey:AVNumberOfChannelsKey];

recordSettings is declared in my view's header file and initialised in its viewDidLoad method. For some reason, everything is working in the simulator, but on a device, the [recorder record] method is returning NO. The only theory I have is that something in the recordSettings isn't compatible with an actual device. Any ideas?

© Stack Overflow or respective owner

Related posts about avfoundation

dyld: Library not loaded: AVFoundation.framework Reason: image not found

as seen on Stack Overflow - Search for 'Stack Overflow'
How do I fix this? dyld: Library not loaded: /System/Library/Frameworks/AVFoundation.framework/Versions/A/AVFoundation Referenced from: /Users/[...]/Library/Application Support/iPhone Simulator/User/Applications/[...]/TestGame.app/TestGame Reason: image not found >>> More
AVFoundation buffer comparison to a saved image

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am a long time reader, first time poster on StackOverflow, and must say it has been a great source of knowledge for me. I am trying to get to know the AVFoundation framework. What I want to do is save what the camera sees and then detect when something changes. Here is the part where I save… >>> More
Missing AVFoundation.framework

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, AVFoundation.framework is not where the documentation says it should be. I have iPhone SDK 2.2 installed (never had previous sdk versions installed) and I can't find that folder under /System/Library/Frameworks I did find it under /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS2… >>> More
Clever recording using AVFoundation

as seen on Super User - Search for 'Super User'
Hello I am working on my master thesis and I am programming app for iOS using AVFoundation framework. I can make by myself session and attach devices to it and record video with sound. The main problem is that I need continous recording (3hours or longer). After three hours user will stop recording… >>> More
displaying music current time & duration from AVFoundation

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a view-based iphone application that has a single play-pause button that plays an mp3 file. At the time of invoking my doPlayPauseButton() method, I 'd like to show the current time and total duration of this mp3 through the AVAudioPlayer instance I've created, called myAudioPlayer. I have… >>> More

Related posts about avaudiorecorder

AVAudioRecorder Memory Leak

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm hoping someone out there can back me up on this... I've been working on an application that allows the end user to record a small audio file for later playback and am in the process of testing for memory leaks. I continue to very consistently run into a memory leak when the AVAudioRecorder's… >>> More
AVAudioRecorder - Continue recording to file after user stops recording by leaving the application a

as seen on Stack Overflow - Search for 'Stack Overflow'
Can this be done? And if not, how far down towards Core Audio do I need to go (what method of recording should I be using instead)? I've noticed the behavior of AVAudioRecorder is to overwrite a file if it finds one at the path provided when you request that it record again, so I know that's not… >>> More
Conflit between AVAudioRecorder and AVAudioPlayer

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, here is my problem : The code (FooController) : NSString *path = [[NSBundle mainBundle] pathForResource:@"mySound" ofType:@"m4v"]; soundEffect = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL]; [soundEffect play]; // MicBlow micBlow = [[MicBlowController… >>> More
Cocoa: AVAudioRecorder Fails to Record

as seen on Stack Overflow - Search for 'Stack Overflow'
AVAudioSession *audioSession = [AVAudioSession sharedInstance]; NSError *err = nil; [audioSession setCategory:AVAudioSessionCategoryPlayAndRecord error:&err]; if(err){ NSLog(@"audioSession: %@ %d %@", [err domain], [err code], [[err userInfo] description]); return; } [audioSession setActive:YES… >>> More
Problem using AVAudioRecorder.

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi all, I am facing a strange problem with AVAudioRecorder. In my application i need to record audio and play it. I am creating my player as : if(recorder) { if(recorder.recording) [recorder stop]; [recorder release]; recorder = nil; } NSString * filePath = [NSHomeDirectory() stringByAppendingPathComponent:… >>> More