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Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/1440371-audiounitsetproperty
Discussion. To clear an audio unit property value, set the inData parameter to NULL and set the inDataSize parameter to 0. Clearing properties works only for …
ios - AudioUnitSetProperty fails with -10868 when setting ...
https://stackoverflow.com/questions/11456068/audiounitsetproperty-fails-with-10868-when-setting-kaudiounitproperty-streamfor
As I understand, the go-to AudioUnit for this use-case is kAudioUnitType_FormatConverter, but when I want to set the ASBD Input Property for aac2pcm, AudioUnitSetProperty fails with -10868 (it also fails when I set …
Audio Unit详解 - 简书 - jianshu.com
https://www.jianshu.com/p/8ce865c9bbac
七、AudioUnitSetProperty配置audio unit. AudioUnitProperty是一个键值对。 ... I/O Without a Render Callback Function. 在Remote I/O unit的elements之间添加一个或多个其它audio unit，可以构建出更有用的应用，因为没有回调函数，则无法直接操作音频，限制了实用性。 ...
Core Audio deadlock (#253) · Issues · GStreamer / gst ...
https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/issues/253
E.g. a stop() call triggers a render_notify which will try to remove the callback and in turn calls into AudioUnitSetProperty. If currently a render callback was executing, then this will cause a deadlock in the way i tried to sketch above with my 1337 ascii drawing skills.
Bluetooth A2DP as output | Apple Developer Forums
https://developer.apple.com/forums/thread/5787
Just wanted to update this thread from awhile back and mention it is in fact possible (as of iOS 10) to use the iPhone Microphone as input and Bluetooth A2DP headset as audio output at the same time within a single App.
AudioUnit播放PCM文件(三) - 简书 - jianshu.com
https://www.jianshu.com/p/847734bec2c1
录制和播放音频:kAudioUnitSubType_RemoteIO,后面通过AudioUnitSetProperty()方法具体是访问麦克风还是扬声器 访问音频数据:kAudioUnitSubType_GenericOutput 4、kAudioUnitType_FormatConverter:提供音频格式转化功能,比如采样率转换，声道数转换，采样格式转化，panner到packet转换等等
Using RemoteIO audio unit - A Tasty Pixel » Blog
https://atastypixel.com/using-remoteio-audio-unit/
Enable IO for recording and possibly playback with AudioUnitSetProperty Describe the audio format in an AudioStreamBasicDescription structure, and apply the format using AudioUnitSetProperty Provide a callback for recording, and possibly playback, again using AudioUnitSetProperty
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