Background
| SMPTE IMD Test Tone |
A dual frequency tone generator will help you design your own IMD tests or experience the beat of two oscillators.
A beat is an interference between two sounds of slightly different frequencies, perceived as periodic variations in volume whose rate is the difference between the two frequencies (e.g. 440 Hz + 442 Hz at the same level will produce a 2 Hz beat).
File Generator
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External Links
- Online Sine Tone Generator [with longer durations and sample rates up to 192kHz]
- Introduction to Electrical Waveforms
- The Sine Wave @ Wikipedia
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