Sine 4137Hz Audio Only

(2)

Speaker Sound Test 4137Hz

(1:1econd)

137 Hz Sine Tone Amplitude 1

(1:)

4137 hz

(1:3)

413 Hz Sine Tone Amplitude 1

(1:)

473 Hz Sine Tone Amplitude 1

(1:)

4137 hz triangle

(1:2)

432 Hertz Pure Sine Wave for Ten Hours

(10:1econd)

4137 hz square

(1:2)

Sine - What's On Your Mind? ‎ (em:t 3394 1994)

(10:26)

Sine 4136Hz Audio Only

(2)

13 Hz Sine Tone Amplitude 1

(1:)

Speaker Sound Test 3174Hz

(1:1econd)

Sine Curve and the Unit Circle

(27)

467 Hz Sine Tone Amplitude 1

(1:)

4K JET SCREEN #343434 and 160HZ Sine Sound

(1:)

187.4Hz Sine Wave Test Tone

(10:)