900 Hz Pure Tone - Black Screen - 12h

This video features a continuous 900 Hz sine wave tone on a black screen. This frequency is commonly used for audio equipment testing, speaker calibration, and frequency response verification.

900 Hz sits in the midrange part of the audio frequency spectrum, making it ideal for testing mid-frequency reproduction in speakers and headphones. The pure sine wave provides a clean, undistorted reference tone for audio professionals and enthusiasts.

⚠️ WARNING: Please adjust your volume to a comfortable level before playing. Prolonged exposure to loud tones may cause hearing discomfort.

Use cases:
Audio equipment testing
Speaker and headphone calibration
Frequency response testing
Sound system diagnostics


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Disclaimer:
The audio content on this channel is intended for relaxation and entertainment purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. If you are experiencing physical or mental health issues, please consult a qualified healthcare provider.
Do not listen to these frequencies if you have a medical condition that may be affected by sound stimulation (e.g. epilepsy, auditory sensitivity, or neurological disorders). Use responsibly and avoid listening while driving or operating heavy machinery.