User manual KURZWEIL ALGORITHMS1

[. . . ] is a registered trademark, and Kurzweil, K2500, and KDFX are trademarks of Young Chang Co. All other products and brand names are trademarks or registered trademarks of their respective companies. Product features and specications are subject to change without notice. Part Number: 910319 Rev. A FXAlg #1: MiniVerb FXAlg #2: Dual MiniVerb FXAlg #1: MiniVerb FXAlg #2: Dual MiniVerb Versatile, small stereo and dual mono reverbs Allocation Units: 1 for MiniVerb, 2 for Dual MiniVerb MiniVerb is a versatile stereo reverb which is found in many combination algorithms, but is equally useful on its own because of its small size. [. . . ] Positive diffusion settings will add diffusion while maintaining image integrity. Negative diffusion amounts will cause the feedback image to lose image integrity and become wide. Increasing Diff Delay will be more noticeable, and long delay settings will take on a ringy resonant quality. To disable the diffuser, both Diff Delay and Diff Amt should be set to zero. Two 1-pole 6dB/oct filtershipass and lowpassare also in the feedback path. The hipass filter roll-off frequency is controlled with LF Damping, and the lowpass filter roll-off frequency is controlled by HF Damping. The imager (found on PARAM2) shifts the stereo input image when fed through feedback. Small positive or negative values shift the image to the right or left respectively. Larger values shift the image so much that the image gets scrambled through each feedback generation. For an overview of shaper functionality, refer to the section on shapers in the K2500 Performance Guide. The Spectral Multi-Tap shapers offer 4 shaping loops as opposed to 8 found in the VAST shapers, but can allow up to 6. 00x intensity (Figure 2). Immediately following the shapers on taps 2 and above are resonant comb filters tuned in semitones. When a comb filter is in use, the shaper before it can be used to intensify these pitched qualities. 0 . 1 0 x 0 . 2 0 x 0. 50x 1 . 0 0 x 2 . 0 0 x 6 . 0 0 x Various shaper curves used in the Spectral Multi-Taps Algorithm Reference-45 FXAlg #135: Spectral 4-Tap FXAlg #136: Spectral 6-Tap Each tap also has separate balance and level controls. Since these are tempo based effects, tap delay values and feedback delay (labeled LoopLength on PARAM2) values are set relative to a beat. The tempo can be synced to the system clock by setting Tempo to System. The bts parameter is adjustable in increments of 1/24th of a beat, which is a useful fraction because it can divide beats into 2, 3, 4, 6, 8, or 12 parts. The length of a delay in seconds can be calculated as T = (beats/tempo) * 60. Parameters (Spectral 4-Tap): PAGE 1 Wet/Dry Fdbk Level HF Damping LF Damping PAGE 2 LoopLength Fdbk Image Tap1 Delay Tap1 Shapr Tap1 Level Tap1 Bal PAGE 3 Tap3 Delay Tap3 Shapr Tap3 Pitch Tap3 PtAmt Tap3 Level Tap3 Bal 0 to 32 bts 0. 10 to 6. 00 x C-1 to C8 0 to 100% 0 to 100% -100 to 100% Tap4 Delay Tap4 Shapr Tap4 Pitch Tap4 PtAmt Tap4 Level Tap4 Bal 0 to 32 bts 0. 10 to 6. 00 x C-1 to C8 0 to 100% 0 to 100% -100 to 100% On or Off -100 to 100% 0 to 32 bts 0. 10 to 6. 00 x 0 to 100% -100 to 100% Tap2 Delay Tap2 Shapr Tap2 Pitch Tap2 PtAmt Tap2 Level Tap2 Bal 0 to 32 bts 0. 10 to 6. 00 x C-1 to C8 0 to 100% 0 to 100% -100 to 100% 0 to 100% 0 to 100% 16 to 25088 Hz 16 to 25088 Hz Out Gain Tempo Diff Delay Diff Amt Off, -79. 0 to 24. 0 dB System, 0 to 255 BPM 0 to 20. 0 ms -100 to 100% Parameters (Spectral 6-Tap): PAGE 1 Wet/Dry Fdbk Level HF Damping LF Damping 0 to 100% 0 to 100% 16 to 25088 Hz 16 to 25088 Hz Out Gain Tempo Diff Delay Diff Amt Off, -79. 0 to 24. 0 dB System, 0 to 255 BPM 0 to 20. 0 ms -100 to 100% Algorithm Reference-46 FXAlg #135: Spectral 4-Tap FXAlg #136: Spectral 6-Tap PAGE 2 LoopLength Fdbk Image Tap1 Delay Tap1 Shapr Tap1 Level Tap1 Bal PAGE 3 Tap3 Delay Tap3 Shapr Tap3 Pitch Tap3 PtAmt Tap3 Level Tap3 Bal PAGE 4 Tap5 Delay Tap5 Shapr Tap5 Pitch Tap5 PtAmt Tap5 Level Tap5 Bal 0 to 32 bts 0. 10 to 6. 00 x C-1 to C8 0 to 100% 0 to 100% -100 to 100% Tap6 Delay Tap6 Shapr Tap6 Pitch Tap6 PtAmt Tap6 Level Tap6 Bal 0 to 32 bts 0. 10 to 6. 00 x C-1 to C8 0 to 100% 0 to 100% -100 to 100% 0 to 32 bts 0. 10 to 6. 00 x C-1 to C8 0 to 100% 0 to 100% -100 to 100% Tap4 Delay Tap4 Shapr Tap4 Pitch Tap4 PtAmt Tap4 Level Tap4 Bal 0 to 32 bts 0. 10 to 6. 00 x C-1 to C8 0 to 100% 0 to 100% -100 to 100% On or Off -100 to 100% 0 to 32 bts 0. 10 to 6. 00 x 0 to 100% -100 to 100% Tap2 Delay Tap2 Shapr Tap2 Pitch Tap2 PtAmt Tap2 Level Tap2 Bal 0 to 32 bts 0. 10 to 6. 00 x C-1 to C8 0 to 100% 0 to 100% -100 to 100% Wet/Dry The relative amount of input signal and effected signal that is to appear in the nal effect output mix. The amount of high-frequency content of the signal to the input of the delay. This control determines the cutoff frequency of the one-pole (-6dB/octave) lowpass lters. The amount of low-frequency content of the signal to the input of the delay. This control determines the cutoff frequency of the one-pole (-6dB/octave) hipass lters. [. . . ] Multiple Pitcher algorithms can be run (yes, it takes all of KDFX to get three) to produce chordal output. At extremely low Pitch settings, the effect begins to sound more like a multi-tap delay, but this can be pretty cool, too. A vocoder-like effect can be produced, although in some sense it works in exactly an opposite way to a real vocoder. A real vocoder will superimpose the spectrum of one signal (typically speech) onto a musical signal (which has only a small number of harmonically related spectral peaks). [. . . ]