Image:Harmonic distortion examples.ogg
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Harmonic_distortion_examples.ogg (Ogg Vorbis sound file, length 15s, 118kbps)
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This is only meant for a talk page, but might be useful elsewhere. It's three 5 second chunks of 100 Hz sine wave, with various distortion. They have each been enveloped with a smooth ADSR curve, to sound kind of "musical".
Before the envelopes were applied:
- The first, from 0 to 5 seconds, is just a 100 Hz sine wave
- The second, from 5 to 10 seconds, is a 100 Hz sine wave with additional harmonics at 200, 400, 600, and 800 Hz
- -6 dBFS RMS
- After notch filtering the fundamental, signal is at -16.9 dBFS = 10.9 dB THD+N = 28.5% THD+N
- The third, from 10 to 15 seconds, is a 100 Hz sine wave with additional harmonics at 300, 500, 700, and 900 Hz
- -6 dBFS RMS
- After notch filtering the fundamental, signal is at -17.8 dBFS = 11.8 dB THD+N = 25.7% THD+N
The envelope changed the levels, of course, but the distortion amount should be the same. The ogg formatting also changed the characteristics, but the distortion is exaggerated and still audible.
Source: Created by User:Omegatron using Adobe Audition
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File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 01:51, 3 June 2006 | 15s (217 KB) | Omegatron | (This is only meant for a talk page, but might be useful elsewhere. It's three chunks of sine wave, with distortion. The first is just a sine wave at 100 Hz, at -6 w:dBFS w:RMS) |
