本文将带你了解IOS开发入门iOS获取音频设备信息，希望本文对大家学IOS有所帮助。

iOS获取音频设备信息。

方法1：

CFDictionaryRef   descDictRef = nil;

UInt32 refSize =   sizeof(descDictRef);

status = AudioSessionGetProperty(kAudioSessionProperty_AudioRouteDescription,   &refSize,   &descDictRef);

打印信息如下：

Printing   description of   dictRef:

{

"RouteDetailedDescription_Outputs"   = (

{

"RouteDetailedDescriptionKey_EndpointType"   =   Headphones;

"RouteDetailedDescription_ChannelDescriptions"   =   (

{

"ChannelDescription_Label" =   1;

"ChannelDescription_Name" = "AirPods   \U5de6";

},

{

"ChannelDescription_Label"   = 2;

"ChannelDescription_Name" = "AirPods   \U53f3";

}

);

"RouteDetailedDescription_ID"   = 486;

"RouteDetailedDescription_IsHeadphones" =   1;

"RouteDetailedDescription_IsVoiceProcessingSupported"   = 0;

"RouteDetailedDescription_Name" =   AirPods;

"RouteDetailedDescription_NumberOfChannels"   = 2;

"RouteDetailedDescription_PortType" =   BluetoothA2DPOutput;

"RouteDetailedDescription_UID"   =   "7C:04:D0:8A:43:33-tacl";

}

);

}

方法2：

NSArray*availableInputs=[[AVAudioSessionsharedInstance]availableInputs];

打印信息如下：

Printing   description of   availableInputs:

<__NSSingleObjectArrayI   0x17400cb30>(

)

如果是蓝牙设备，采集的时候采样率设置比较高，传输的时候可能会丢数据，可以采样率设置小一点，后面再做重采样处理。

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