void WavePlayBack(uint32_t AudioFreq)
{
/* note: these mallocs are NOT freed at the moment */
sp_create(&sp);
sp->sr = AudioFreq;
sp_ftbl_create(sp, &ft, 8192);
sp_gen_sine(sp, ft);
sp_osc_create(&osc);
sp_osc_init(sp, osc, ft, 0);
osc->freq = 0.2f;
osc->amp = 1.f;
uint32_t i;
for(i = 0; i < NOSCS; i++) {
sp_fosc_create(&fosc[i]);
sp_fosc_init(sp, fosc[i], ft);
fosc[i]->freq = sp_midi2cps(scale[i]);
fosc[i]->amp = 0.1f;
}
for(i = 0; i < MY_BUFSIZE; i++) {
buf0[i] = 0;
buf1[i] = 0;
}
sp_revsc_create(&revsc);
sp_revsc_init(sp, revsc);
/* Initialize wave player (Codec, DMA, I2C) */
WavePlayerInit(AudioFreq);
nextbuf = 1;
compute_buffer(buf1, MY_BUFSIZE);
Audio_MAL_Play((uint32_t)buf0, MY_BUFSIZE / 2);
EVAL_AUDIO_Mute(AUDIO_MUTE_ON);
while(1) {
while(nextbuf == 1);
if(please_play == 0) {
EVAL_AUDIO_Mute(AUDIO_MUTE_OFF);
please_play = 1;
}
compute_buffer(buf0, MY_BUFSIZE);
while(nextbuf == 0);
compute_buffer(buf1, MY_BUFSIZE);
};
}
void init(int channelCount, double inSampleRate) {
channels = channelCount;
sampleRate = float(inSampleRate);
sp_create(&sp);
sp->sr = sampleRate;
sp->nchan = channels;
sp_fosc_create(&fosc);
sp_fosc_init(sp, fosc, ftbl);
fosc->freq = 440;
fosc->car = 1.0;
fosc->mod = 1;
fosc->indx = 1;
fosc->amp = 1;
}
void init(int _channels, double _sampleRate) override {
AKSoundpipeKernel::init(_channels, _sampleRate);
sp_fosc_create(&fosc);
sp_fosc_init(sp, fosc, ftbl);
fosc->freq = 440;
fosc->car = 1.0;
fosc->mod = 1;
fosc->indx = 1;
fosc->amp = 1;
baseFrequencyRamper.init();
carrierMultiplierRamper.init();
modulatingMultiplierRamper.init();
modulationIndexRamper.init();
amplitudeRamper.init();
}
