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Solved. Thank you so much, it was the 16 bit encode I didn’t think on decoding it, used the 8 bit record and it works.
I will not disturbe you anymore, thank you again!Yes, I’m sure, it’s only a kind of debug, I only want to see if the values are all different between themselves, because now, I only get one or two values, like 5 and 230 that are switching always like 0, 230, 0 230…
When I get all values different I’m going to send them with xbee to the PC and use them in a neural network.Ok, thank you… Is my code correct? I want to record until memory is full and then show the values in serial, is that correct?
Thank you michael, I have it working now.
One last question, I have a code in C that transforms a wav file in an array with 18000 elements, because of sample rate, there is any way to get that 18000 elements with the audio hack shield?
I have another question, It seems like the ISR is not executed, because the monitor doesn’t show the address, how is the ISR executed?
#include
unsigned int sampleRate;
unsigned int timer1Start;
unsigned int address=0;
unsigned int chipAddress=0;
volatile int aux = 0;
void setup(){
Serial.begin(9600);
sampleRate=18000;
timer1Start = UINT16_MAX-(F_CPU/sampleRate);
AudioHacker.begin();
}
void loop(){
if(aux==1){
Serial.println("HOLA");
delay(3000);
}
}
ISR(TIMER1_OVF_vect){
TCNT1=timer1Start;
unsigned int signal;
signal=AudioHacker.readADC_8bit();
AudioHacker.writeSRAM(chipAddress,address,signal);
address++;
Serial.println(address);
if (address > 131071) {
if (chipAddress == 0) {
// proceed to the second SRAM chip
address = 0;
chipAddress = 1;
}
else {
aux=1;
}
}
}
pd: sorry for clumsiness, but I’m new to arduino and need to do this as fast as I can.
Ok, I’m trying to do this with the ISR.
I want to record 10s of audio aprox. (so I chose 18000hz sampleRate), and then use that audio in an artificial neural network.
#include
unsigned int sampleRate;
unsigned int timer1Start;
unsigned int address=0;
unsigned int chipAddress=0;
int aux=0;
void setup(){
Serial.begin(9600);
sampleRate=18000;
timer1Start = UINT16_MAX-(F_CPU/sampleRate);
AudioHacker.begin();
}
void loop(){
if(aux==1){
Serial.println("HOLA");
delay(3000);
}
}
ISR(TIMER1_OVF_vect){
TCNT1=timer1Start;
unsigned int signal;
signal=AudioHacker.readADC();
AudioHacker.writeSRAM(chipAddress,address,signal);
address++;
if (address > 131071) {
if (chipAddress == 0) {
// proceed to the second SRAM chip
address = 0;
chipAddress = 1;
}
else {
aux=1;
}
}
}
this is the code I have now, but it doesn’t work, it never shows ‘HOLA’ in the serial monitor.
Can you help me?
