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iOS获取音频设备信息

程序员文章站 2022-04-02 10:03:18
iOS获取音频设备信息。 方法1: CFDictionaryRef descDictRef = nil; UInt32 refSize = sizeof(descDictRe...

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。