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Руководство по эксплуатации Страница: 50

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PCM96
Руководство по эксплуатации Страница: 50

Lexicon PCM96 — параметры реверберации и их влияние на звук [50/68]

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Lexicon PCM96 Руководство по эксплуатации онлайн [50/68] 758093

to bounce around. When the room size is small, the “walls” of this space are

closer together and the resultant reflection density increases. When the room

size is large, that density decreases. The most natural reverbs use room sizes

that vary from about 24 meters to 45 meters or so, but there are many useful

reverbs that are outside of this range.

There is a relationship between this parameter and the MidRT parameter.

Please see the MidRT parameter for clarification.

RtHC Damping

The damping parameter is closely tied to the RTHC parameter. It controls

the strength of the hi frequency absorption and has three values: Light,

Normal, and Heavy. The normal value gives filter response identical to previ-

ous Lexicon

reverbs. The other values should be self-descriptive.

Scale

This parameter is used to modify the overall time of the selected early

impulse. It is a multiplier that goes from 0.5x to 2.0x. The actual time of the

responses varies from response to response. The Early Scale parameter simply

scales that amount of time. It’s fair to describe this a “rubber-banding” the

impulse response.

Selected LFO

This parameter determines which of the available LFOs may be used to con-

trol a voice. The voice may use the LFO output or the inverted LFO output.

Shape (Early Shape)

The Shape parameter is closely tied to the Spread parameter. Shape controls

how energy is injected into the reverberator. A low value means that sound

enters the reverb at the beginning of the spread window. A high value means

that most sound moves into the reverb at the end of the spread window. A

value somewhere in the middle means that sound enters the reverb evenly

across the spread window.

Tip: Shape will not have this effect if spread is at its minimum value. But

even then, it can make a difference. In this case, it affects reverb tim-

bre and density. Higher values of shape will be both darker and denser,

although the effect is subtle.

Shelf

This parameter effects all filter types. It allows a certain amount of unfiltered

audio to be combined with the filtered audio. This effectively lowers the

effect of the filter. Another way of looking at it is that it lessens the normal

filter slope of 12 dB per octave. Unlike the traditional biquad filter, the shelf

is effective for all filter forms.

Signal Event Freq

Changes the rate of discreet signals from the signal generator. This only has

an effect when the signal type is set to sweep tones or pink click.

Signal Frequency

Changes the frequency of the signal generator sine wave. This only has an

effect when the signal type is set to sine wave.

Lexicon PCM96 — параметры реверберации и их влияние на звук [50/68]

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