Guitar amp volume problem

[GodlikeGenius09]

Hi there.
I used your guitar effects as a start to my ESP32-A1S guitar amp project. I am still sort of early in the project so what I am working towards is being able to change the volume using a rotary encoder. the button system of it will act as a mute and when button pushed again, will go back to same volume as before muted. will work towards having treble, bass and gain knobs but first, I must get the volume. The bulk of the code is the same as the example of guitar effects that was given. My problem is that when am changing the volume on the knob, the serial monitor is saying that I am changing the volume variable but I there is no sound coming from the speakers. I know that it isn't the speakers or anything and that the problem is in the code. I will paste the below. Can you help me out with this? thanks.

#include <AudioTools.h> // Main audio library
#include <ESP32Encoder.h> // For rotary encoder

// Rotary Encoder Pins
#define ROTARY_CLK_PIN 18 // Must be interrupt-capable
#define ROTARY_DT_PIN 19
#define ROTARY_SW_PIN 21

// Audio Setup
I2SStream i2s;
VolumeStream volume(i2s);
StreamCopy copier(volume, i2s); // Handles audio

// Volume Control
ESP32Encoder encoder;
float current_volume = 0.5f; // Start at 50%
const float VOLUME_STEP = 0.01f; // 1% steps

void setup() {
Serial.begin(115200);

// Configure I2S - Update these pins for your board!
auto cfg = i2s.defaultConfig(RXTX_MODE);
cfg.sample_rate = 44100;
cfg.bits_per_sample = 16;
cfg.channels = 2;
cfg.buffer_size = 256;
cfg.pin_bck = 14; // Bit clock
cfg.pin_ws = 15; // Word select
cfg.pin_data = 22; // Data out
cfg.pin_data_rx = 32; // Data in (for guitar)

i2s.begin(cfg);
volume.begin(cfg);
volume.setVolume(current_volume);

// Rotary Encoder Setup
encoder.attachSingleEdge(ROTARY_DT_PIN, ROTARY_CLK_PIN);
encoder.setCount(50); // Start at 50%
pinMode(ROTARY_SW_PIN, INPUT_PULLUP);

Serial.println("System Ready - Turn knob to adjust volume");
}

void loop() {
// Handle volume changes
static int last_count = 0;
int current_count = encoder.getCount();

if (current_count != last_count) {
current_volume = constrain(current_count * VOLUME_STEP, 0.0f, 1.0f);
volume.setVolume(current_volume);
Serial.printf("Volume: %.0f%%\n", current_volume * 100);
last_count = current_count;
}

// Process audio
copier.copy();
}

[pschatzmann]

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