Variation of Frequency of sound underwater

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The frequency of sound underwater is primarily determined by the sound source rather than the medium itself. However, the speed of sound in water does vary with temperature and depth, which can affect how sound propagates. The relationship between sound speed and temperature can be described by specific formulas, though the discussion did not provide them. To determine the best frequency of operation, one must consider the application and the characteristics of the sound source. Understanding these factors is crucial for effective underwater acoustics.
NPB777
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Hello,

I am very much interested to how frequency of sound varies in water. Also, how the frequency varies with temperature and depth? What are the different formulas related to this? Secondly, how can we determine the best frequency of operation? I would be very thankful if anyone could answer the above questions or point to materials explaining the above.

With regards
 
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It doesn't. The frequency depends on the source that produces the sound.
Maybe you mean the speed of sound. This indeed depends on temperature of the medium.
 
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