audio04.c

////////////////////////////////////////////////////////////////////////////////
//     
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//   / /_______________  ____  ___     / ____/
//  / __/ ___/ ___/ __ \/ __ \/ _ \   /___ )  
// / /_(__  ) /__/ /_/ / /_/ /  __/  ____/ /  
// \__/____/\___/\____/ .___/\___/  /_____/   
//                   /_/                      
//     
// audio04.c
// - Basic response timing example.
// - Use the software voice key as a response device.
////////////////////////////////////////////////////////////////////////////////


#include <tscope5.h>
#include <stdio.h>

#define MAXTIME 2.0

int main()
{
    // not too much logging
    ts5_set_log_level(TS5_LOGLEVEL_1);
    
    // install a display
    ts5_install_display();

    // set voice key parameters
    ts5_set_voicekey_treshold(0.2);
    // ts5_set_voicekey_rise_delay(0.2);
    // ts5_set_voicekey_drop_delay(0.2);
    
    // define voice onset as a response
    ts5_define_voicekey_button(1);
    
    // define voice offset as a response
    ts5_define_voicekey_button(-1);

    // define the escape key
    ts5_define_keyboard_button(TS5_KEY_ESCAPE);
    
    // start the audio recorder
    ts5_start_audio_recorder();


    // 5 trials, name the number
    int i;
    for (i = 0; i < 5; i++) {

        // some timing varables
        double t0, t1, error;
        int r;

        // allocate an audio sample
        TS5_SAMPLE *test = ts5_alloc_sample(MAXTIME);

        // fixation point
        ts5_printf(0.0, 0.0, "+");
        ts5_flip_display();
        ts5_wait(0.5);

        // blank
        ts5_clear_display();
        ts5_flip_display();
        ts5_wait(0.5);
        
        // set stimulus 
        ts5_clear_display();
        ts5_printf(0.0, 0.0, "%d", i);
        t0 = ts5_flip_display();
        
        // start recording
        ts5_flush_responses();  
        ts5_record_sample(test);
        
        // wait for maximum MAXTIME seconds
        while (ts5_get_time() - t0 < MAXTIME) {

            ts5_get_sample_fragments(test);
            ts5_detect_voice_onsets(test);
            r = ts5_check_response(&t1, &error);
            
            if (r) {
                printf("trial %d: %d %f %f\n", i, r, t1-t0, error);     
            }   
            
            if (r==3) {
                break;
            }
        }       

        // save the sample
        char fname[50];
        sprintf(fname, "trial%02d.wav", i);
        ts5_write_sample(fname, test);
        ts5_free_sample(test);
        
        // intertrial interval
        ts5_clear_display();
        ts5_flip_display();
        ts5_wait(0.5);      
    }

    // stop the audio recorder
    ts5_stop_audio_recorder();      
    
    return 0;
}