![]() A factor of 2 or 4 is probably the max, bringing the resolution to 7 or 8 bits. So I need to increase the effective resolution somehow, possibly by mechanically amplifying the wave height. If the water wave varies over a 1 foot range, that corresponds to about 1 ms of time, which at my recorder's max sample-rate (44,100 per sec) is about 44 samples. To accommodate larger water waves, I might need to lower the frequency (maybe to 100 Hz or so). The series of sampled time delays is used to generate an audio file.ĥ00 Hz provides about 2 mS for the reflection to occur before the next waveform arrives. Some software is used to analyze the varying time delay between the speaker's output and the returned echo. The sound reflects off the surface of the water and goes back toward the microphone. The tube is held vertically and other end of the tube dips into the water. A little further in, a microphone records the sound. The 555 drives a small loudspeaker at the end of a tube. The long term goal is to build two detectors to create a stereo audio waveform.įor this version, I plan to use a 555 as a fixed frequency squarewave generator, probably around 500 Hz. Some software can transform the audio signal back into the sequence of height measurements, and then that sequence can be sped up by a factor of about 100 to create a new audio file representing the water waves. What is required is some kind of transformation of slowly changing height measurements into an audio signal. A collection of the top 46 Waves Phone wallpapers and backgrounds available for download for free. I can't use a digital audio recorder directly for this, since the frequency is way too slow. ![]() So, in this new version, I'd like to substantially improve the sound quality.īasically it's a data recorder that can record water height at rather slow rates (around 1 Hz). I tried a little experiment a while ago and got this sound: - it shows promise, but it does not sound very good at all! Would waves formed by throwing something into a swimming pool, when sped up, sound like clapping your hands in an empty room? Or what? That would raise the frequency to around 100 Hz, which is in the range of human hearing. What would happen if you record the water height as a function of time, and then speed it up by a factor of around 100. The water waves appear to be generally in the frequency range of around 1 Hz, plus or minus. There are more than just one up and down motion of the surface, maybe anywhere from 5 to 10. If you experiment with throwing rocks into the water you can see the waves spread out and dissipate. The main functionality revolves around creating a gentle wave pattern using SVG and CSS. Water waves are the variation of water level over time. Download (5 KB) This code provides a mesmerizing water wave background animation effect for web pages. ![]() I will replace those when new photos are available.) (The current photos are of the original project.
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