Water leakage detection system( ulttrasonic sensor HC-SR04 or microphones)

Projects General Guidance
1

hi eveyone can give some idea about create the water leakage detection system by using ultrasonic sensor or microphones.. It is possible? I need the sensor to detect the leak frequency from water pipe that help me to know that the water pipe is leak? I study about the Hc-sr04 sensor only can detect the distance, the microphone need amplifier to increase the signal sound, but i cannot find out the project related to the water leak detection system, hope someone can help me , give me opinion about it, thanks

2

You want to listen for leaks? Wouldn't detecting the leaking fluid be easier?

3

PaulS:
You want to listen for leaks? Wouldn't detecting the leaking fluid be easier?

thanks for reply, just want detect the value, no need listen for leak, cause i know the frequency/ acoustic signal from the leak water pipe has different of no leak water pipe. so, i need the sensor to detect this kind of frequency help me to differentiate them, any idea or suggestion? thanks for reply