“Modal Processor Effects Inspired by Hammond Tonewheel Organs” — audio examples

This page includes audio examples that accompany “Modal Processor Effects Inspired by Hammond Tonewheel Organs” by Kurt James Werner and Jonathan S. Abel. If you want to hear the Hammondizer in action, skip to the audio for Figure 15–16. Figures 9–14 demonstrate specific aspects of the Hammondizer on very simple program material (sine waves).

Figure 9: (a) C3 sine wave input and (b) Hammondized version with five different registrations

Figure 9(a): C3 Input signal

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Figure 9(b): Hammondized, 5 registrations

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Figure 10: Showing range of Hammond tonewheels

Figure 10(a): C0–C8 input signal

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Figure 10(b): Hammondizer with “shoutin’ ” registration

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Figure 11: (a) Clarinet registration, various levels of crosstalk ∈ [-∞, -24, -18, -12, -6] dB and (b) Whistle stop registration, various levels of vibrato ∈ [0, 26, 50, 100, 1200] cents.

Figure 11(a): Various levels of crosstalk

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Figure 11(b): Various levels of vibrato

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Figure 12: Keyboard split demonstration.

Figure 12(a): C0–C5 input signal

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Figure 12(b): Driving keyboard split

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Figure 13: Decreasing amplitude interacting with distortion.

Figure 13(a): C3 input signal, various amplitudes

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Figure 13(b): Distorted

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Figure 14: Showing how the Hammondizer mode-wise distortion does not cause intermodulation distortion. (a) input signal; (b) Hammondizer with mide-wise distortion; and (c) Hammondizer with “global” distortion.

Figure 14(a): Input signal

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Figure 14(b): Mode-wise distortion

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Figure 14(c): Distortion applied outside

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Figure 15: Blues guitar lick, original and two different Hammondized settings.

Figure 15(a): Input signal

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Figure 15(b): Hammondized, “Jimmy Smith” registration

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Figure 15(c): Hammondized, “all out” registration

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Figure 16: Beginning of “El Cant dels Ocells”, original and two different Hammondized settings.

Figure 16(a): Input signal

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Figure 16(b): Hammondized, “bassoon” registration

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Figure 16(c): Hammondized, “clarinet” registration

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Conclusion

“Green Onions” played with only sine waves

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“Green Onions” processed with the Hammondizer, demonstrated that in addition to its use as a novel digital audio effect, it can be used as a makeshift Hammond organ syntheizer

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