9700 hz triangle

Disclaimer: This video might NOT be the frequency stated. Reason is in the link below. Warning: Lower your volume to prevent damaging hearing or equipment.    • FLAW ANNOUNCEMENT   If you want to help:    • If you feel like giving back   Tags: hz hertz frequency sound music all chords sounds noise tone noises tones audio wave waves sin sine sinus sinoid rect rectangle square saw seesaw sawed-off triangle triangular triceps non-sinusoidal type periodic amplitude pulse pulses pulsar sound sounds heart heartbeat resonancy brave