Hello! My virgin post in this forum.
I am trying to interface a hydrophone (PHOD-1) with an Arduino. Any idea how I should go about this? The output signal from the hydrophone is AC coupled to the built in pre amp input with 6db attenuation. The output signal will start to clip at 8V peak to peak and about 2.8V RMS.
maybe any hints of what kind of circuitry i need to build before i connect them to the analog input of the Arduino.
Thanks
What do you want to do with it ?
That hydrophone is for the range 10Hz to 50kHz, and the Arduino is not very good with digital signal processing.
The maximum rate that the Arduino can sample an audio input is about 9.6 kHz with full 10 bit resolution and about 38 kHz with 8 bits resolution. That, plus the Nyquist criterion, limits audio signal processing to the highest audio frequencies of 4.8 kHz (10 bits) or 19 kHz (8 bits). Of course at those highest frequencies the sampling rate gives you the minimum possible representation of the input waveform, so with very low fidelity.