将 Remoteio 与 AudioServicesPlaySystemSound 一起使用

发布于 2024-09-26 16:09:33 字数 738 浏览 7 评论 0 原文

我们正在尝试结合使用 Remoteio 进行录音使用 AudioServicesPlaySystemSound 函数进行音频播放。问题是，每当 Remoteio 运行时，播放音量就会下降显著地。似乎最终的混合是在幕后发生的，但我们不知道如何改变这种行为。

Remoteio的实现基于以下博客 http://atastypixel.com/blog/using-remoteio-audio-unit/

对于音频播放，我们只使用这样的代码，

NSString *sndPath = [[NSBundle mainBundle] pathForResource:@"test" ofType:@"wav" inDirectory:@"/"];
CFURLRef sndURL = (CFURLRef)[[NSURL alloc] initFileURLWithPath:sndPath];
SystemSoundID soundID;

int e = AudioServicesCreateSystemSoundID(sndURL, &soundID);
if (e) {
  NSLog(@"couldn't create sound");
  exit(0);
}
AudioServicesPlaySystemSound(soundID);

非常感谢您的帮助

原文

we are trying to use remoteio for audio recording in conjunction
with the AudioServicesPlaySystemSound function for audio playback. the problem is that whenever remoteio is running the playback volume drops
significantly. it seems like if some final mixing takes place behind the scene but we do not no how to change this behavior.

the implementation of the remoteio is based on the fallowing blog
http://atastypixel.com/blog/using-remoteio-audio-unit/

for audio playback we just use code like this one

NSString *sndPath = [[NSBundle mainBundle] pathForResource:@"test" ofType:@"wav" inDirectory:@"/"];
CFURLRef sndURL = (CFURLRef)[[NSURL alloc] initFileURLWithPath:sndPath];
SystemSoundID soundID;

int e = AudioServicesCreateSystemSoundID(sndURL, &soundID);
if (e) {
  NSLog(@"couldn't create sound");
  exit(0);
}
AudioServicesPlaySystemSound(soundID);

thanks a lot for any help

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