在iPhone模拟器中录制音频时出错

在使用AVFoundation在iPhone模拟器中录制音频时，我遇到以下错误。我的代码在设备上运行良好

有什么想法吗？提前谢谢

2012-09-15 17:51:39.592 MySpellings[538:3503]加载错误 /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn： dlopen/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn， 262:找不到符号：_CFObjCIsCollectable引用自： /System/Library/Frameworks/Security.framework/Versions/A/Security 预计在： /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation 在/System/Library/Frameworks/Security.framework/Versions/A/Security中 2012-09-15 17:51:39.598 MySpellings[538:3503]加载错误 /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn： dlopen/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn， 262:找不到符号：_CFObjCIsCollectable引用自： /System/Library/Frameworks/Security.framework/Versions/A/Security 预计在： /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation 在/System/Library/Frameworks/Security.framework/Versions/A/Security中 2012-09-15 17:51:39.607 MySpellings[538:3503]加载错误 /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn： dlopen/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn， 262:找不到符号：_CFObjCIsCollectable引用自： /System/Library/Frameworks/Security.framework/Versions/A/Security 预计在： /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation 在/System/Library/Frameworks/Security.framework/Versions/A/Security中 2012-09-15 17:51:39.612 MySpellings[538:3503]加载错误 /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn： dlopen/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn， 262:找不到符号：_CFObjCIsCollectable引用自： /System/Library/Frameworks/Security.framework/Versions/A/Security 预计在： /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation 在/System/Library/Frameworks/Security.framework/Versions/A/Security中 2012-09-15 17:51:40.932我的拼写[538:4907]aq@0xea13200: ConvertInput:AudioConverterFillComplexBuffer返回560226676， packetcount212012-09-1517:51:42.254我的拼写[538:c07]刷新 挂起的输入已终止-错误'！dat'

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当录制到m4a格式AVFormatIDKey=KAUDIOOFORMATMPEG4AAC时，我在模拟器中录制音频时也遇到问题。控制台日志中包含AudioConverterFillComplexBuffer的错误，未记录任何音频

但是，录制为.caf格式的kAudioFormatAppleIMA4确实有效，对于某些人来说，这可能是一个解决方案

recordSettings = [NSDictionary
                  dictionaryWithObjectsAndKeys:
                  [NSNumber numberWithInt:AVAudioQualityMin],
                  AVEncoderAudioQualityKey,
                  [NSNumber numberWithInt:16],
                  AVEncoderBitRateKey,
                  [NSNumber numberWithInt: 1],
                  AVNumberOfChannelsKey,
                  [NSNumber numberWithFloat:16000.0],
                  AVSampleRateKey,
                  [NSNumber numberWithInt: kAudioFormatAppleIMA4],
                  AVFormatIDKey,
                  nil];

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在我的例子中，显示该错误是因为我使用了错误的比特率：

我忘了我用的是Kbps，AvencoderBitatekey用的是bps。

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因此，在我将比特率乘以1000后，错误消失。

可能会在副本上复制“不确定”，我的应用程序不会崩溃，并显示不同的错误。这只是一个模拟器问题。不用担心…反正要修好它？我想将我的设备移动到iOS 6，并使用模拟器来测试iOS 5兼容性。这是因为从前面的消息中可以清楚地看到，有些人很难在模拟器上录制音频。