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ios - OSStatus error -50 (paramErr) on AudioUnitRender ...
https://stackoverflow.com/questions/12254202/osstatus-error-50-paramerr-on-audiounitrender-call-on-device
OSStatus result = AudioUnitRender([THIS converterUnit], ioActionFlags, inTimeStamp, inBusNumber, inNumberFrames, &bufferList); ... I think -50 error means one of the parameters is wrong. The only parameters that can be wrong are [THIS converterUnit]and &bufferList, given that all the rest are handed to me as arguments.
Error -50 de AudioUnitRender Desarrollo de iOS
https://ios.dokry.com/error-50-de-audiounitrender.html
No se reproduce audio después de save el video con AVCaptureMovieFileOutput ¿Cómo fusionar dos files mp3 iOS? appendSampleBuffer con un audio AVAssetWriterInput "fugas" de memory hasta endSessionAtSourceTime
Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/1438430-audiounitrender
ioData. On input, the audio buffer list that the audio unit is to render into. On output, the audio data that was rendered by the audio unit. The AudioBufferList that you provide on input must match the topology for the current audio format for the given bus. The buffer list can be either of these two variants: If the mData pointers are non ...
CMSampleBufferSetDataBufferFromAud… | Apple …
https://developer.apple.com/forums/thread/11418
Answers. I poked around some more and notice that when my AudioBufferList right before AudioUnitRender runs looks like this: bufferList->mNumberBuffers = 2, bufferList->mBuffers [0].mNumberChannels = 1, bufferList->mBuffers [0].mDataByteSize = 2048. mDataByteSize is numberFrames*sizeof (SInt32), which is 512 * 4.
AudioUnit合并音频文件(七) - 简书
https://www.jianshu.com/p/8b1a7a22ff7f
分配AudioBufferList内存，注意对于planner格式和packet格式创建方式不一致，这个很重要，要配置对，否则会返回-50错误。 详细参考上面代码 第三部分： 索要数据OSStatus status = AudioUnitRender(_genericUnit,&flags,&inTimeStamp,0,framesPerRead,bufferlist); 第四部分： 释放 …
Decibel metering from an iPhone audio unit - Politepix
https://www.politepix.com/2010/06/18/decibel-metering-from-an-iphone-audio-unit/
Hello visitor! If Core Audio and iOS development is your cup of tea, you might also want to check out OpenEars, Politepix’s shared source library for continuous speech recognition and text-to-speech for iPhone and iPad development.It even has an API for defining rules-based recognition grammars dynamically as of version 1.7 – pretty neat! On to decibel metering:
リモートI / O、AudioUnitRender-50リターンコードを使用した録音
https://stackfinder.jp.net/questions/4374289/recording-with-remote-i-o-audiounitrender-50-return-code
InputCallbackメソッドでAudioUnitRenderを呼び出すと、戻りコード-50が返されます。これは、私のパラメータの1つが無効であることを意味すると思います。AudioBufferListだと思いますが、何が悪いのかわかりません。
chromium Git repositories - Git at Google
https://chromium.googlesource.com/chromium/src/media/+/master/audio/mac/audio_low_latency_input_mac.cc
// Copyright (c) 2012 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE ...
Core Audio in iOS 6 (CocoaConf Portland, Oct. '12)
https://www.slideshare.net/invalidname/core-audioios6portland
Core Audio gets a bunch of neat new tricks in iOS 6, particularly for developers working with Audio Units. New effect units include an improved ability to vary pitch and playback speed, a digital delay unit, and OS X's powerful matrix mixer. There's now a new place to use units too, as the Audio Queue now offers developers a way to "tap" into ...
リモートI / Oレンダリングコールバック関数の作成に問題があり …
https://stackfinder.jp.net/questions/12206875/trouble-writing-a-remote-i-o-render-callback-function
AudioUnitRenderそうしましたが、レンダーコールバックで関数を呼び出すと-50エラーが発生します。レンダリングコールバックでは何もしていないので、2つのオーディオユニット間でASBDが一致しない場合があると思います（以前はAUGraphが処理していました）。
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