iOS - Accessing generated signal from Audio Unit render callback -
i have ios/objective-c program uses single audio unit play generated signal when button pressed. i'd add functionality such that: a) when button first pressed, signal generated in kind of numeric array. b) audio begins, , render callback accesses (and plays) generated signal. given current code, feel these additions few lines, i'm having trouble syntax, variable types use, how track current sample, , on. i've included related code now: the button press: - (ibaction)startpressed:(id)sender { [self setupaudioplayer]; [self createsignal]; [self playaudio]; } a line setupaudioplayer: input.inputprocrefcon=&mysignal; // mysignal instance var the audio creation: -(void)createsignal{ int beeplength=0.020*fs; // fs sampling frequency float beepfrequency=440; // hz // declare kind of numeric array "mysignal", instance var. mysignal=...? // generate audio signal (pure tone) (int i=1; i<=beepl...
