it complains about a bad method call which, indeed, does not now exist:
inConverter = [[MTConversionBuffer alloc]
initWithSourceDescription:shtoomDescription
bufferFrames:inBufferSize
destinationDescription:[MTConversionBuffer descriptionForDevice:outputDevice forDirection:kMTCoreAudioDevicePlaybackDirection]
bufferFrames:ceil ( [outputDevice deviceMaxVariableBufferSizeInFrames] * SR_ERROR_ALLOWANCE )];
there is no such initializer, now.
so, i need to figure out how to translate everything in my allocConterer method to what MYConversionBuffer now expects.
my old code used a AudioStreamBasicDescription object to pass to the conversion buffer init. i see that initWithSourceSampleRate ends up creating such an object within itself, so that is my clue.
i will try to refactor my code to just pass in the params that method asks for.