Kiyoteru Hayama
voice changer, contains echo, change low voice and high voice.
condenser microphone connect to p16, audio amplifier and speaker connect to p18, and pull-upped switch connect to p5 for chage voice of low voice, high voice and ecoed voice.
test video-> http://youtu.be/z-7Hj0u6OlA
Diff: temp.cpp
- Revision:
- 0:f4cbe4a0f1be
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/temp.cpp Tue Aug 12 01:20:44 2014 +0000
@@ -0,0 +1,233 @@
+/*
+// normal voice
+#include "mbed.h"
+float micCB;
+float y;
+
+AnalogIn micC(p16);
+AnalogOut spOut(p18);
+BusOut leds( LED4, LED3, LED2, LED1 );
+
+int main() {
+ wait(2);
+
+ micCB=0;
+ for(int i=0;i<1000;i++){
+ micCB+=micC;
+ }
+ micCB/=1000;
+
+ while(1) {
+ y=micC-micCB;
+ spOut=y*10+0.5;
+ leds=abs(y*1000);
+ wait_us(20);
+ }
+}
+
+
+
+
+
+// y wo 2 kai syuuki de 0
+#include "mbed.h"
+float micCB;
+float y;
+int j;
+
+AnalogIn micC(p16);
+AnalogOut spOut(p18);
+BusOut leds( LED4, LED3, LED2, LED1 );
+
+int main() {
+ wait(2);
+
+ micCB=0;
+ for(int i=0;i<1000;i++){
+ micCB+=micC;
+ }
+ micCB/=1000;
+
+ while(1) {
+ j++; if(j>1) j=0;
+ if(j==0) y=micC-micCB; else y=0;
+ if (abs(y)>0.005) spOut=y*10+0.5;
+ leds=abs(y*1000);
+ wait_us(20);
+ }
+}
+
+
+
+
+// idouheikin
+#include "mbed.h"
+float micCB;
+float x1,x2,x3,x4;
+float y;
+int j;
+
+AnalogIn micC(p16);
+AnalogOut spOut(p18);
+BusOut leds( LED4, LED3, LED2, LED1 );
+
+int main() {
+ wait(2);
+
+ micCB=0;
+ for(int i=0;i<1000;i++){
+ micCB+=micC;
+ }
+ micCB/=1000;
+
+ while(1) {
+ y=x2+x1;
+ x2=x1;
+ x1=micC-micCB;
+ spOut=y*10+0.5;
+ leds=abs(y*1000);
+ wait_us(10);
+ }
+}
+
+
+
+
+// smoothing voice
+#include "mbed.h"
+float micCB;
+float x1,x2,x3,x4;
+float y;
+int j;
+
+AnalogIn micC(p16);
+AnalogOut spOut(p18);
+BusOut leds( LED4, LED3, LED2, LED1 );
+
+float smooth(float a, float b, float factor){
+ return(a*factor+b*(1-factor));
+}
+
+int main() {
+ wait(2);
+
+ micCB=0;
+ for(int i=0;i<1000;i++){
+ micCB+=micC;
+ }
+ micCB/=1000;
+
+ while(1) {
+ //y=x2+x1;
+ //x2=x1;
+ y=smooth(micC-micCB,y,0.05);
+ spOut=y*10+0.5;
+ leds=abs(y*1000);
+ wait_us(10);
+ }
+}
+
+
+
+
+// voice changer (low voice)
+#include "mbed.h"
+#define ARRAY 2000
+#define ARRAYM1 1999
+
+float micCB;
+float x[ARRAY];
+float y;
+int j=0,k=0,n=0;
+AnalogIn micC(p16);
+AnalogOut spOut(p18);
+BusOut leds( LED4, LED3, LED2, LED1 );
+
+int main() {
+ wait(2);
+ micCB=0;
+ for(int i=0;i<1000;i++){ micCB+=micC; }
+ micCB/=1000;
+
+ while(1) {
+ n++; if (n>1) n=0;
+ if (n==0){ k++; if (k>ARRAYM1) k=0; }
+ j++; if(j>ARRAYM1) j=0;
+ x[j]=micC-micCB;
+ y=x[k];
+ spOut=y*10+0.5;
+ leds=abs(y*1000);
+ wait_us(20);
+ }
+}
+
+
+// voice changer (high voice)
+#include "mbed.h"
+#define ARRAY 1000
+#define ARRAYM1 999
+
+float micCB;
+float x[ARRAY];
+float y;
+int j=0,k=0,n=0;
+AnalogIn micC(p16);
+AnalogOut spOut(p18);
+BusOut leds( LED4, LED3, LED2, LED1 );
+
+int main() {
+ wait(2);
+ micCB=0;
+ for(int i=0;i<1000;i++){ micCB+=micC; }
+ micCB/=1000;
+
+ while(1) {
+ n++; if (n>1) n=0;
+ if (n==0){ k++; if (k>ARRAYM1) k=0; }
+ j++; if(j>ARRAYM1) j=0;
+ x[k]=micC-micCB;
+ y=x[j];
+ spOut=y*10+0.5;
+ leds=abs(y*1000);
+ wait_us(10);
+ }
+}
+
+
+
+
+// voice changer (ECHO)
+#include "mbed.h"
+#define ARRAY 4000
+#define ARRAYM1 3999
+#define DELAYTIME 2000
+#define ECHOFACTOR 0.6
+
+float micCB;
+float x[ARRAY];
+float y;
+int j=0,k=0,n=0;
+AnalogIn micC(p16);
+AnalogOut spOut(p18);
+BusOut leds( LED4, LED3, LED2, LED1 );
+
+int main() {
+ wait(2);
+ micCB=0;
+ for(int i=0;i<1000;i++){ micCB+=micC; }
+ micCB/=1000;
+
+ k=DELAYTIME;
+ while(1) {
+ j++; if(j>ARRAYM1) j=0;
+ k++; if (k>ARRAYM1) k=0;
+ y=x[j]+=micC-micCB;
+ x[k]=x[j]*ECHOFACTOR;
+
+ spOut=y*10+0.5;
+ leds=abs(y*1000);
+ wait_us(50);
+ }
+}
+
+*/
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