Audio_Settings.cpp

#include "daisy_patch_sm.h"
#include "daisysp.h"

/** These are namespaces for the daisy libraries.
 *  These lines allow us to omit the "daisy::" and "daisysp::" before
 * referencing modules, and functions within the daisy libraries.
 */
using namespace daisy;
using namespace patch_sm;
using namespace daisysp;

/** Daisy patch sm object */
DaisyPatchSM patch;

/** Callback for processing and synthesizing audio
 *
 *  The default size is 48 samples per channel. This means the
 * callback is being called at 1kHz.
 *
 *   You can change this size by calling patch.SetAudioBlockSize(desired_size). 
 *  When running complex DSP it is more efficient to do the processing on larger chunks at a time.
 *
 */
void AudioCallback(AudioHandle::InputBuffer  in,
                   AudioHandle::OutputBuffer out,
                   size_t                    size)
{
    for(size_t i = 0; i < size; i++)
    {
        /** set the left output to the current left input */
        OUT_L[i] = IN_L[i];

        /** set the right output to the current right input */
        OUT_R[i] = IN_R[i];
    }
}

int main(void)
{
    /** Initialize the patch_sm object 
    * This sets the blocksize to its default of 48 samples.
    * This sets the samplerate to its default of 48kHz.
    */
    patch.Init();

    /** Set the samplerate to 96kHz */
    patch.SetAudioSampleRate(96000);

    /** Set the blocksize to 48 samples */
    patch.SetAudioBlockSize(48);

    /** Start the audio callback */
    patch.StartAudio(AudioCallback);

    /** Loop forever */
    while(1) {}
}