Disabled analog inputs

Projects Programming
1

I downloaded a program for reading sound from a microphone connected to Analog port 0. Then I wanted to combine that code with a potentiometer that I connected to analog port 7 (on arduino nano). The problem is that the sound program seems to shut down the analog ports. I found that this part of code makes it impossible to read an analog input:

// Init ADC free-run mode; f = ( 16MHz/prescaler ) / 13 cycles/conversion
ADMUX = ADC_CHANNEL; // Channel sel, right-adj, use AREF pin
ADCSRA = _BV(ADEN) | // ADC enable
_BV(ADSC) | // ADC start
_BV(ADATE) | // Auto trigger
_BV(ADIE) | // Interrupt enable
_BV(ADPS2) | _BV(ADPS1) | _BV(ADPS0); // 128:1 / 13 = 9615 Hz
ADCSRB = 0; // Free run mode, no high MUX bit
DIDR0 = 1 << ADC_CHANNEL; // Turn off digital input for ADC pin
TIMSK0 = 0; // Timer0 off

sei(); // Enable interrupts

I wonder if there is any way to reconnect analog port 7 without destroying whatever this code is doing?

2

You could reconfigure the ADC so it worked normally - but you can't be reading the mic with that code and using the ADC for other purposes at the same time

3

I wonder if there is any way to reconnect analog port 7 without destroying whatever this code is doing?

There is ONE analog to digital converter on the Arduino. So, no, you can't have that code using the ADC one way and another pin using it a different way at the same time.