small sound sensor not detected

Question

The usecase of my project is when I hear the sound of clap then only the relay channel should get triggered. But in my case, the GPIO.input(SOUND_INPUT_PIN) is only giving me value 1(HIGH). The connection seems correct, though. Below is the configuration of my pi, relay and small sound sensor.

pin 2(5v) -> vcc of relay

pin 6(gnd) -> gnd of relay

pin 7(gpio) -> IN1 of relay

pin 4(5v) -> vcc of sound sensor

pin 14(gnd) -> gnd of sound sensor

pin 11(gpio) -> DO of sound sensor

Here is my code

#!/usr/bin/python
import RPi.GPIO as GPIO
import time

# telling pi we are not using the pin but BCM standard GPIO names for the pins
GPIO.setmode(GPIO.BCM)

BULB_OUTPUT_PIN = 4
SOUND_INPUT_PIN = 17

# as I am refering to the BCM mode instead of BOARD mode so the output pin is
# GPIO4 which is 7th pin in the pi when starting the first pin from left.
GPIO.setup(BULB_OUTPUT_PIN, GPIO.OUT)
GPIO.output(BULB_OUTPUT_PIN, GPIO.HIGH)

# for sound sensor
GPIO.setup(SOUND_INPUT_PIN, GPIO.IN)

SleepTime = 6

# main loop

try:
    while 1:
        print('#######GPIO INPUT PIN##### ', GPIO.input(SOUND_INPUT_PIN))
        if GPIO.input(SOUND_INPUT_PIN) == GPIO.LOW:
            print("##########Sound is sensed############")
            time.sleep(SleepTime)
            GPIO.output(BULB_OUTPUT_PIN, GPIO.LOW)
            print("#Relay is triggered in the switch 1########")
            time.sleep(SleepTime)
            GPIO.cleanup()
            print("Good bye!")
# End program cleanly with keyboard
except KeyboardInterrupt:
    print("Quit")

    # Reset GPIO settings
    GPIO.cleanup()

UPDATE

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Answer 1

You have given no details of the sound sensor you are using.

I assume it is a module with both an analogue and a digital output.

I assume you are using the digital output.

Sound modules with a digital output usually have a multi-turn potentiometer to set the threshold of the digital output. You will need to adjust the potentiometer to the level you want.