Kiyoteru Hayama / Mbed 2 deprecated VoiceRecorder

simple voice recorder. Pwoer up or reset, record voice for 5 sec. Press botton then voice out.

Dependencies:   mbed

/media/uploads/hayama/2014-08-11_20.21.54.jpg

main.cpp@0:00a8ac955304, 2014-08-14 (annotated)

Committer:
hayama
Date:
Thu Aug 14 09:45:57 2014 +0000
Revision:
0:00a8ac955304
simple voice recorder

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hayama 0:00a8ac955304 1 #include "mbed.h"
hayama 0:00a8ac955304 2 #define NUMDAT 15000
hayama 0:00a8ac955304 3 #define DLY 250
hayama 0:00a8ac955304 4
hayama 0:00a8ac955304 5 float micCB;
hayama 0:00a8ac955304 6 short dat[NUMDAT];
hayama 0:00a8ac955304 7 int i;
hayama 0:00a8ac955304 8
hayama 0:00a8ac955304 9 DigitalIn sw(p5);
hayama 0:00a8ac955304 10 AnalogIn micC(p16);
hayama 0:00a8ac955304 11 AnalogOut spOut(p18);
hayama 0:00a8ac955304 12 BusOut leds( LED4, LED3, LED2, LED1 );
hayama 0:00a8ac955304 13
hayama 0:00a8ac955304 14 void voiceOut(){
hayama 0:00a8ac955304 15 leds=2;
hayama 0:00a8ac955304 16 for(i=0;i<NUMDAT; i++){
hayama 0:00a8ac955304 17 spOut=((float)dat[i])/32768*10+0.5;
hayama 0:00a8ac955304 18 wait_us(DLY);
hayama 0:00a8ac955304 19 }
hayama 0:00a8ac955304 20 }
hayama 0:00a8ac955304 21
hayama 0:00a8ac955304 22 int main() {
hayama 0:00a8ac955304 23 leds=0;
hayama 0:00a8ac955304 24 wait(1);
hayama 0:00a8ac955304 25 micCB=0;
hayama 0:00a8ac955304 26 for(i=0;i<100;i++){ micCB+=micC; }
hayama 0:00a8ac955304 27 micCB/=100;
hayama 0:00a8ac955304 28 leds=1;
hayama 0:00a8ac955304 29
hayama 0:00a8ac955304 30 // record voice
hayama 0:00a8ac955304 31 for(i=0;i<NUMDAT; i++){
hayama 0:00a8ac955304 32 dat[i]=(int)((micC-micCB)*32768);
hayama 0:00a8ac955304 33 wait_us(DLY);
hayama 0:00a8ac955304 34 }
hayama 0:00a8ac955304 35
hayama 0:00a8ac955304 36 while(1){
hayama 0:00a8ac955304 37 leds=0;
hayama 0:00a8ac955304 38 if (sw==0) voiceOut();
hayama 0:00a8ac955304 39 }
hayama 0:00a8ac955304 40 }
hayama 0:00a8ac955304 41
hayama 0:00a8ac955304 42
hayama 0:00a8ac955304 43