ENSONIQ DP/4+ User Manual

Section 2 — Algorithms
ENSONIQ DP/4+ Reference Manual 105
roughly corresponds to the pitch of the microphone (vox) input. For example, it would be hard
to get good results if you are talking in a low pitched voice, but are playing high notes on the
keyboard.
Although the Input 1 (vox) is optimized for speech, any signal source can be used. The vocoder
will apply the spectrum of any Input 1 signal to the carrier signal, which can produce some
interesting timbres.
Vocoder Low
Vocoder Mid 1
Vocoder Mid 2
Vocoder High
Mix Range: 00 to 99
Controls the mix between the dry signal and the wet signal. Setting this parameter to 00 will
allow only the unprocessed signal to be heard, while a setting of 99 will eliminate the dry signal
completely, with only the wet (vocoded) portion remaining. We recommend high settings for
this parameter.
Volume Range: 00 to 99
Adjusts the output volume. Setting this to 00 will eliminate the signal, producing no sound.
Speech Gain Range: -48 to +48 dB
Adjusts the boost or cut applied to the Input 1 (vox) source, after the pre-emphasis. Higher levels
of pre-emphasis require higher speech gains, in general. Experiment with this level until it
sounds right.
Vocoder Sibilance Level Range: 00 to 99
Controls the level of high frequency sibilance sounds passed to the output. This filter will add all
vox frequencies above approximately 3500 Hz (see earlier diagram) directly to the synthesized
output. In general, higher values offer improved articulation. We recommend a setting of
approximately 20 on one unit (A, B, C, or D), or a setting of 5 on each of the four units.
Vocoder Response Time Range: Slow, Normal or Fast
Selects the rate at which the carrier will track the vox signal. A fast response time will analyze
and synthesize the signal quickly. A slow response time will analyze and synthesize the signal
more accurately. This parameter defaults to Normal.
Vocoder Pre-emphasis Range: 00 to 99
This parameter emphasizes the high frequencies of the vox signal (Input 1), and de-emphasizes
low frequencies. A setting of 99 gives the most emphasis, whereas a setting of 00 offers no
emphasis.
Mod1 Source Mod2 Source
Mod1 Destination Mod2 Destination
Mod1 Param Range Min Mod2 Param Range Min
Mod1 Param Range Max Mod2 Param Range Max
See the descriptions under the Algorithm Modulators, found in the beginning of this section.

ENSONIQ DP/4+ Specifications

General

Brand	ENSONIQ
Model	DP/4+
Category	Recording Equipment
Language	English