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
Revision 0:f4cbe4a0f1be, committed 2014-08-12
- Comitter:
- hayama
- Date:
- Tue Aug 12 01:20:44 2014 +0000
- Commit message:
- voice changer, contains echo, change low voive and high voice.
Changed in this revision
diff -r 000000000000 -r f4cbe4a0f1be main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Aug 12 01:20:44 2014 +0000
@@ -0,0 +1,82 @@
+
+// voice changer all function
+#include "mbed.h"
+#define ARRAY 4000
+#define ARRAYLM1 1999
+#define ARRAYHM1 999
+#define ARRAYEM1 3999
+#define DELAYTIME 2000
+#define ECHOFACTOR 0.5
+
+float micCB;
+float x[ARRAY];
+float y;
+int j=0,k=0,n=0;
+int mode=0;
+
+DigitalIn sw(p5);
+AnalogIn micC(p16);
+AnalogOut spOut(p18);
+BusOut leds( LED4, LED3, LED2, LED1 );
+
+// voice changer (low voice)
+void lowVoice(){
+ while(sw) {
+ n++; if (n>1) n=0;
+ if (n==0){ k++; if (k>ARRAYLM1) k=0; }
+ j++; if(j>ARRAYLM1) 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)
+void highVoice() {
+ while(sw) {
+ n++; if (n>1) n=0;
+ if (n==0){ k++; if (k>ARRAYHM1) k=0; }
+ j++; if(j>ARRAYHM1) j=0;
+ x[k]=micC-micCB;
+ y=x[j];
+ spOut=y*10+0.5;
+ leds=abs(y*1000);
+ wait_us(10);
+ }
+}
+
+// voice changer (ECHO)
+void echoVoice() {
+ k=DELAYTIME;
+ while(sw) {
+ j++; if(j>ARRAYEM1) j=0;
+ k++; if (k>ARRAYEM1) k=0;
+ y=x[j]+=micC-micCB;
+ x[k]=x[j]*ECHOFACTOR;
+
+ spOut=y*10+0.5;
+ leds=abs(y*1000);
+ wait_us(50);
+ }
+}
+
+//------------------main-----------------------
+int main() {
+ wait(2);
+ micCB=0;
+ for(int i=0;i<1000;i++){ micCB+=micC; }
+ micCB/=1000;
+
+ while(1){
+ switch(mode){
+ case 0: lowVoice(); break;
+ case 1: highVoice(); break;
+ case 2: echoVoice(); break;
+ }
+ while(sw==0);
+ wait(0.5);
+ mode++; if (mode>2) mode=0;
+ }
+}
\ No newline at end of file
diff -r 000000000000 -r f4cbe4a0f1be mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Aug 12 01:20:44 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/04dd9b1680ae \ No newline at end of file
diff -r 000000000000 -r f4cbe4a0f1be temp.cpp
--- /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);
+ }
+}
+
+*/
\ No newline at end of file