Hz Frequency Sound Generator is a free sound wave generator and frequency oscillator for Android devices. It allows you to generate sine, square or saw-tooth sound waves with a frequency range of 1Hz to 22000Hz. This app is perfect for testing speakers and headphones, cleaning water from speakers, testing hearing capabilities, using as an instrument while playing or producing, and finding your tinnitus frequency.

The app is user-friendly, and you can easily change the sound wave and pick from a wide variety of notes. You can adjust the sound generating frequency by dragging the yellow dot clockwise or anticlockwise and control the volume of the generated sounds from 0-100%. The app also has several settings you can adjust to customize the behavior, including changing the frequency slider range, choosing between two slider scales, enabling low latency setting, enabling or disabling decimal precision, and changing the +/- button step.

It is worth noting that mobile devices are not always good quality audio sources, and the speakers provided in mobile devices differ in quality. Sometimes users can hear sounds at very low or high frequencies even beyond the scope of human hearing, which is not a sound of a given frequency but static or “parasite” noise generated by the mobile device. It is recommended to use good quality headphones for the best experience.