File:TenPercentFM.PNG
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TenPercentFM.PNG (633 × 599 pixels, file size: 143 KB, MIME type: image/png)
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Summary
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| Description |
English: The figure shows the 10% frequency modulation of a "middle-C" note over a 10 second modulation-period, so that we can get a good look at the effects of frequency-change (vertical) on Fourier phase-drift (horizontal).
The "fat" solid color regions correspond to "central-coefficient" frequency crossings in the vertical direction at 21.5332 Hertz intervals in the sound-sampling system used here. When the frequency is above that central frequency within each coefficient, the color oscillates in the RGB direction. When the sound frequency is below that center-point, the oscillation is the the RBG direction. The dark lines mark the phase-inversion (vertically) in the direction of the nearest Fourier coefficient-boundary. They likely occur by rectangular (as distinct from polar) interpolation between opposing phases on log-frequency plots even when the amplitude itself is constant. |
| Date | |
| Source | Own work |
| Author | P. Fraundorf |
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I, the copyright holder of this work, hereby publish it under the following license:
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:43, 4 July 2015 | | 633 × 599 (143 KB) | Unitsphere (talk | contribs) | Improved right-side axis labels only. |
| 12:33, 15 June 2015 |  | 631 × 626 (176 KB) | Unitsphere (talk | contribs) | User created page with UploadWizard |
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