How to change the default ADC pin(GPIO34)

[lgherca]

Hello everyone! I am trying to do a 32 band spectrum analyzer using FFT and AudioTools but I cannot use a different analog input other than the default GPIO34.
The below code only works if AUDIO_IN_PIN is defined as 34. I have tried values of 32 and 36 based on my HW availability. What am I missing?

#include "Arduino.h"
#include "fft.h"
#include "AudioTools.h"
...
#define SAMPLING_FREQ 40000
#define AUDIO_IN_PIN 34

AnalogAudioStream adc;
...
void setup() {
// put your setup code here, to run once:
// put your setup code here, to run once:
Serial.begin(115200);
Serial.println("Booting");

//Setup FFT
real_fft_plan = fft_init(SAMPLES, FFT_REAL, FFT_FORWARD, NULL, NULL);

//Setup ADC
auto cfgRx = adc.defaultConfig(RX_MODE);
cfgRx.sample_rate = SAMPLING_FREQ;
cfgRx.channels = 1;
cfgRx.setInputPin1(AUDIO_IN_PIN);
adc.begin(cfgRx);

//Setup FastLED
FastLED.addLeds<CHIPSET, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalSMD5050);
FastLED.setMaxPowerInVoltsAndMilliamps(LED_VOLTS, MAX_MILLIAMPS);
FastLED.setBrightness(BRIGHTNESS_SETTINGS[1]);
FastLED.clear();
}

[pschatzmann]

I would expect that all pins from ADC1 should work.

[lgherca]

GPIO32 and GPIO36 belong to ADC1, so based on your expectation it should work. However, on my side it doesn't work. What could be the issue? Is this setup code ok?
auto cfgRx = adc.defaultConfig(RX_MODE);
cfgRx.sample_rate = SAMPLING_FREQ;
cfgRx.channels = 1;
cfgRx.setInputPin1(AUDIO_IN_PIN);
adc.begin(cfgRx);

[pschatzmann]

yes, this looks right to me...
I don't see what could be wrong.

[lgherca]

I tried other pins and in the end GPIO33 also worked(so at least I have 2 pins working). Probably there is an issue with my hardware. Thanks!