AVAudioPlayer有时会打断应用程序 [英] AVAudioPlayer hiccups the app sometimes

问题描述

我正在开发一个简单的游戏，每次触摸屏幕后，动画就会在一个小的UIImageView上发生，并且这种情况发生得很好，并且应用程序以CADisplayLink作为计时器运行得很顺利.

I am working on a simple game and after every screen touch, an animation is happening on a small UIImageView and this happen very well and the app is running smoothly with CADisplayLink as the timer.

我添加了一个mp3文件，每次触摸后持续1秒​​钟就可以播放，因为AVAudioPlayer可以想象这样的声音:Bip

I added an mp3 file to play after every touch with 1 second lengh as AVAudioPlayer imagine a sound like : Bip

因此，我第一次碰到屏幕第一次打h时，应用程序冻结了不到一秒钟，我可以说这没问题，因为这是声音第一次分配内存.

So the first time that I touch the screen first hiccup happens an the app freeze for less than a second that I can say it is ok coz it's the first time that the sound allocate memory.

如果您在3秒钟之前再次触摸屏幕，则稍后再发生问题，该应用不会打seconds，但是如果我等待4秒或更长时间，则每次触摸后该应用都会开始打h.

The problem happens later when u touch the screen again if I touch it earlier than 3 seconds, the app doesn't hiccups but if I wait 4 seconds and more, the app starts to hiccup after every touch.

每次我两次触摸之间的间隔时间都早于3秒时，该应用程序不会打h，但是两次触摸之间的4秒后，该应用程序就会打ic.

Every time if I touch again and again earlier than 3 seconds between touches, the app doesn't hiccups, but after 4 seconds between touches, the app hiccups.

有解决打h的主意吗?

这是一些需要的代码

@property (nonatomic, strong) AVAudioPlayer *mySound;

- (void)viewDidLoad {

NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:@"bip" ofType:@"mp3"];
NSURL *fileURL = [[NSURL alloc] initFileURLWithPath:soundFilePath];
AVAudioPlayer *newPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:fileURL error:nil];

self.mySound = newPlayer;

[mySound prepareToPlay];
[mySound setDelegate:self];
}

触摸发生后

-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [[event allTouches] anyObject];
CGPoint location = [touch locationInView:touch.view];
if (location.x < viewWidth/2) {
   [mySound play];
} else {
   [mySound play];
}
}

推荐答案

发出非常短的静音声音.使用您的计时器大约每秒(与另一个声音播放器)一起播放一次. —你看这里的主意；我们正在尝试使媒体服务器保持活动状态，以便在需要声音效果时可以使用它.既然您说3秒钟之前没有问题，那让我认为3秒钟之后媒体服务器便重新进入睡眠状态.我们的目标是保持发痒"，以免发生.

Make a very short silent sound. Use your timer to play that (with another sound player) every second or so. — You see what the idea is here; we are try to keep the media server alive so that it is ready to go when we want our sound effect. Since you say there's no problem before 3 seconds, that makes me think that after 3 seconds the media server has gone back to sleep. Our goal is to keep "tickling" it so that can't happen.

但是，总的来说，我的印象是AVAudioPlayer不适用于此类事情.您可能应该使用AVAudioEngine，它可以保持运行并播放声音而没有延迟.

In general, however, my impression is that AVAudioPlayer is not intended for this sort of thing. You should probably be using AVAudioEngine, which can be kept running and made to play sounds without latency.

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