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Technical Note TN2091: Device input using the HAL …
https://developer.apple.com/library/archive/technotes/tn2091/_index.html
kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 1, &DeviceFormat, &size); //set the desired format to the device's sample rate: DesiredFormat.mSampleRate = DeviceFormat.mSampleRate; //set format to output scope: AudioUnitSetProperty(InputUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 1, &DesiredFormat, …
iphone - How to record sound produced by mixer unit …
https://stackoverflow.com/questions/7118429/how-to-record-sound-produced-by-mixer-unit-output-ios-core-audio-audio-graph
result = AudioUnitSetProperty(iOUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 1, // Input bus &iOStreamFormat, sizeof(iOStreamFormat)); if (noErr != result) {[self printErrorMessage: @"AudioUnitSetProperty StreamFormat" withStatus: result]; return;} result = AudioUnitSetProperty(iOUnit, kAudioUnitProperty_StreamFormat, …
coreaudio-examples/main.cpp at master · rweichler ...
https://github.com/rweichler/coreaudio-examples/blob/master/CH08_AUGraphInput/main.cpp
kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 1, &player-> streamFormat, propertySize), " Couldn't set stream format on mixer unit bus 1 "); // connections // mixer output scope / bus 0 to outputUnit input scope / bus 0 // mixer input scope / bus 0 to render callback (from ringbuffer, which in turn is from inputUnit) // mixer input scope / bus 1 to speech unit …
AVAudioEngineでエコキャン実装 (with ... - skyplace
https://soranoba.net/programming/voice-porocessing-with-avaudioengine
Bus 0 is used for the output side, bus 1 is used to get audio input (thus, on the iPhone, it works in a very similar way to the Remote I/O). This audio unit does signal processing on the incoming audio (taking out any of the audio that is played from …
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.
objective c - iOS)AudioUnitを用いてマイク入力にLPFをかける方 …
https://ja.stackoverflow.com/questions/11719/iosaudiounit%E3%82%92%E7%94%A8%E3%81%84%E3%81%A6%E3%83%9E%E3%82%A4%E3%82%AF%E5%85%A5%E5%8A%9B%E3%81%ABlpf%E3%82%92%E3%81%8B%E3%81%91%E3%82%8B%E6%96%B9%E6%B3%95%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6
AudioUnitを用いてマイク入力信号を色々編集するプログラムを書こうとしたのですが、一向に上手く行かないので質問させていただきます。 やりたいこと マイク入力信号→LPF→コールバック関数（ AUNode は二つになるのでしょうか？） 確認済なこと マイク入力信号→コールバック関数( AUNode は ...
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