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ios - AudioUnitSetProperty fails with -10868 when setting ...
https://stackoverflow.com/questions/11456068/audiounitsetproperty-fails-with-10868-when-setting-kaudiounitproperty-streamfor
AudioUnitSetProperty fails with -10868 when setting kAudioUnitProperty_StreamFormat to AAC. Ask Question Asked 9 years, 6 months ago. Active 7 years, 9 months ago. Viewed 2k times 0 I want to use the to encode the output of a AUGraph as AAC (on iOS 5.1). The basic topology of the graph looks like this:
Connecting Audio Units Together. Without AU Graph or ...
https://medium.com/programming-for-music/connecting-audio-units-together-51ee30279434
We use the standard API function AudioUnitGetProperty() to get the value of the property kAudioUnitProperty_StreamFormat for the bus/element 0.
Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/1439840-audiounitgetproperty
Discussion. Some Core Audio property values are C types and others are Core Foundation objects. If you call this function to retrieve a value that is a Core Foundation object, then this function—despite the use of “Get” in its name—duplicates the object. You are responsible for releasing the object, as described in The Create Rule in ...
Edinburgh Speech Tools: audio/macosxaudio.cc Source File
http://festvox.org/docs/speech_tools-2.4.0/macosxaudio_8cc_source.html
170 err = AudioUnitGetProperty(outau, 171 kAudioUnitProperty_StreamFormat, 172 kAudioUnitScope_Output,
在AUHAL上设置采样率 - Javaer101
https://www.javaer101.com/article/77667294.html
//The default setting in my program CheckError(AudioUnitGetProperty(m_audCapUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, //the value is 0 inputBus, //the value is 1 &m_audCapUnitOutputStreamFormat, &propertySize), "Couldn't get OutputSample ASBD from input unit") ; //the inOutputSampleRate is 44100.0 m ...
coreaudio-examples/main.cpp at master · rweichler ...
https://github.com/rweichler/coreaudio-examples/blob/master/CH08_AUGraphInput/main.cpp
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AUFilePlayerDemo/PlayFile.cpp at master · aranm ... - GitHub
https://github.com/aranm/AUFilePlayerDemo/blob/master/iOSfilePlayer/PlayFile.cpp
err = AudioUnitGetPropertyInfo (fileAU, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 1, NULL, &isSetable); // set the properties for the final output err = AudioUnitSetProperty (remoteIOUnit,
Technical Note TN2091: Device input using the HAL Output ...
https://developer.apple.com/library/archive/technotes/tn2091/_index.html
For outputting data to an audio device the format is always expressed on the output scope of the AUHAL's Element 0. The audio device format can be obtained by using AudioUnitGetProperty with the constant kAudioUnitProperty_StreamFormat. Although this information can be obtained, it is NEVER writeable.
iOS: How to resample audio(PCM data) using Audio Unit at ...
https://www.py4u.net/discuss/75267
A converter audio unit will handle your sample rate conversions. I find the best way to deal with this is to adapt your chain to what the hardware is doing natively.
CoreAudio: ¿cambiar la frecuencia de muestreo del ...
https://ios.dokry.com/coreaudio-cambiar-la-frecuencia-de-muestreo-del-micrfono-y-get-datos-en-una-callback.html
La callback de procesamiento se utiliza como fuente para una unidad de audio. Si configura la propiedad kAudioOutputUnitProperty_SetInputCallback en la unidad remoteIO, debe llamar a AudioUnitRender desde la callback que proporciona, entonces tendría que hacer manualmente la conversión de frecuencia de muestreo, que es fea.
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