Hi Bioacoustic community,
We have been doing several experiments in fish tanks to identify fish sounds. However, the resonance degrades a lot the signal recorded with the hydrophone. The resonance frequencies depend on the dimension of the tank and can be dampen with anechoic panels. Our frequency range of interest is 0-1Khz (ideally 1-8kHz): this give us a guideline for the tank dimension. Besides, the size of our tank should be smaller than 1meter x 1m x1m. We will work both with sea water and fresh water.
I have been searching for some papers about how to design a tank for acoustic experiment and what material we should use. I found only information for rooms... Does somebody already made such a fish tank? Do you have any tips to calculate the resonance frequencies? Do you know what material we could use to dampen the resonance inside the tank? How could we isolate the tank from outside noise?
Any information would help! Thanks in advance.