So in my file I have the following code with the intention that a music file plays in the background :
-(void) BackGroundMusic {
NSString *soundPath = [[NSBundle mainBundle]pathForResource:#"LostInTheSea" ofType:#"mp3"];
SystemSoundID soundID;
AudioServicesCreateSystemSoundID((__bridge CFURLRef)[NSURL fileURLWithPath: soundPath], &soundID);
AudioServicesPlaySystemSound(soundID);
}
And then in the view did load section I have :
[self BackGroundMusic];
I have all the toolboxes added such as AVFoundation and AudioToolbox but i can not hear any audio playing . Please help !
You should not be using system sound to play mp3 files as user523234 explains.
Use AVAudioPlayer instead. Here's an example that will loop infinitely:
#import "AVFoundation/AVAudioPlayer.h"
#import "AVFoundation/AVAudioSession.h"
-(void)playbgMusic {
AVAudioPlayer *soundbgMusic;
NSString *soundPath;
soundPath= [[NSBundle mainBundle] pathForResource:#"bgMusic" ofType:#"mp3"];
soundbgMusic = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:soundPath] error:NULL];
soundbgMusic.volume = 1.0;
soundbgMusic.numberOfLoops = -1;
[soundbgMusic prepareToPlay];
soundbgMusic.currentTime = 0.0;
[soundbgMusic play];
}
According to the document for AudioServicesPlaySystemSound:
Sound files that you play using this function must be:
No longer than 30 seconds in duration
In linear PCM or IMA4 (IMA/ADPCM) format
Packaged in a .caf, .aif, or .wav file
Related
I am trying to play my audio file, which is 1.9 seconds, in my iOS App with these lines of code:
NSString *path = [[NSBundle mainBundle] pathForResource:#"bell" ofType:#"wav"];
NSURL *pathURL = [NSURL fileURLWithPath : path];
SystemSoundID audioEffect;
AudioServicesCreateSystemSoundID((__bridge CFURLRef) pathURL, &audioEffect);
AudioServicesPlaySystemSound(audioEffect);
AudioServicesDisposeSystemSoundID(audioEffect);
The audio file never plays but the code gets called.
EDIT: file bell.wav
bell.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, stereo 48000 Hz
The problem is that you are disposing the sound before it has a chance to start playing.
My book teaches you how to do this. Here is the code I provide in my book:
void SoundFinished (SystemSoundID snd, void* context) {
// NSLog(#"finished!");
AudioServicesRemoveSystemSoundCompletion(snd);
AudioServicesDisposeSystemSoundID(snd);
}
- (IBAction)doButton:(id)sender {
NSURL* sndurl = [[NSBundle mainBundle] URLForResource:#"test" withExtension:#"aif"];
SystemSoundID snd;
AudioServicesCreateSystemSoundID((__bridge CFURLRef)sndurl, &snd);
AudioServicesAddSystemSoundCompletion(snd, nil, nil, SoundFinished, nil);
AudioServicesPlaySystemSound(snd);
}
You can adapt that to use your sound and to trigger the playing in the way you need.
However, do note that you should not be using a 1.9 second sound as a system sound. It is much better to use an AVAudioPlayer (which my book also teaches you to do).
I have would like to play audio on the startup of my app, but, first of all, the audio doesn't play! No matter how i code it. And secondly I would love to loop it if i can.
#implementation ViewController
-(void)awakeFromNib
{
SystemSoundID soundID;
NSString *soundFile1 = [[NSBundle mainBundle] pathForResource:#"ScaryMusic" ofType:#"mp3"];
AudioServicesCreateSystemSoundID((__bridge CFURLRef) [NSURL fileURLWithPath:soundFile1], &soundID);
AudioServicesPlaySystemSound(soundID);
NSLog(#"Sound Played");
}
Try this instead:
#import <AVFoundation/AVFoundation.h>
AVAudioPlayer *player;
NSURL *soundFileURL = [[NSBundle mainBundle] URLForResource:#"ScaryMusic" withExtension:#"mp3"];
if (soundFileURL != nil)
{
player = [[AVAudioPlayer alloc] initWithContentsOfURL:soundFileURL error:nil];
player.numberOfLoops = -1; //infinite
}
[player play];
This is better for mp3's and such. SystemSound is mostly reserved for short .wav type sounds.
If you look in the docs you'll find that mp3 is not among the formats supported by AudioToolbox
I am using AVAudioPlayer to play an audio file its working but on some device it does not play how do i solve my problem
if(_defaultSettings)
{
_soundFilePath = [[NSBundle mainBundle] pathForResource:#"ring" ofType:#"wav"];
NSLog(#"ringTone Path%#",_soundFilePath);
// /System/Library/Audio/UISounds/
_audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:_soundFilePath ]error:nil];
[_audioPlayer prepareToPlay];
[_audioPlayer play];
_audioPlayer.numberOfLoops = -1;
AudioServicesPlaySystemSound(1000);
}
- (void)playSystemSound {
NSLog(#"playSystemSound");
// Create the URL for the source audio file. The URLForResource:withExtension: method is
// new in iOS 4.0.
NSURL *tapSound = [[NSBundle mainBundle] URLForResource: #"short_low_high"
withExtension: #"wav"];
if (!self._soundFileURLRef) {
// Store the URL as a CFURLRef instance
self._soundFileURLRef = (CFURLRef) [tapSound retain];
// Create a system sound object representing the sound file.
AudioServicesCreateSystemSoundID (_soundFileURLRef, &_soundFileObject);
}
// Play the sound
AudioServicesPlaySystemSound (_soundFileObject);
// // to vibrate the device // AudioServicesPlaySystemSound (kSystemSoundID_Vibrate);
}
I am making a learn-the-alphabet app for toddlers and I have encountered a problem with the sound output. Every sound the app plays when testing on my ipad has the same volume whether the device's sound is set at maximum or mute. In other words, the same sound level comes out regardless of the device's volume setting.
The code I use to play sounds is (using the A-sound as an example):
- (IBAction)aSpill:(id)sender {
CFBundleRef mainBundle = CFBundleGetMainBundle();
CFURLRef soundFileURLRef;
soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) #"aLyd", CFSTR("wav"), NULL);
UInt32 soundID;
AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
AudioServicesPlaySystemSound(soundID);
Any help is much appreciated! :)
Please see the answer here AudioServicesPlaySystemSound Volume?
It explains that system sounds don't always use the system volume.
I suggest using AVAudioPlayer to play your sound instead.
So from here : http://developer.apple.com/library/ios/#documentation/AudioVideo/Conceptual/MultimediaPG/UsingAudio/UsingAudio.html
Try following the code using the below kind of code.
NSString *soundFilePath =
[[NSBundle mainBundle] pathForResource: #"sound"
ofType: #"wav"];
NSURL *fileURL = [[NSURL alloc] initFileURLWithPath: soundFilePath];
AVAudioPlayer *newPlayer =
[[AVAudioPlayer alloc] initWithContentsOfURL: fileURL
error: nil];
[fileURL release];
self.player = newPlayer;
[newPlayer release];
[player prepareToPlay];
It is about halfway down the page.
I've been using the following function to play sounds.
- (void) playFile:(NSString *)nameOfFile
{
NSString *tmpFileName = [[NSString alloc] initWithFormat:nameOfFile];
NSString *fileName = [[NSBundle mainBundle] pathForResource:tmpFileName
ofType:#"mp3"];
SystemSoundID soundID;
AudioServicesCreateSystemSoundID((__bridge_retained CFURLRef)
[NSURL fileURLWithPath:fileName], &soundID);
AudioServicesPlaySystemSound (soundID);
}
I've noticed that if the button that calls this is pressed again, the sound just plays over the top of the existing playing sound. How can I augment this code to stop sounds playing again and instead 'restart' the playing file? Should I play the sounds using a different API?
You can use AVAudioPlayer to do that, just allocate it in your init/viewdidload then when the button is pressed do something like:
[self.player stop]
self.player.currentTime=0;
[self.player play];