DIGISYNTHETIC DS212 Manuel d'instruction - Page 8

Parcourez en ligne ou téléchargez le pdf Manuel d'instruction pour {nom_de_la_catégorie} DIGISYNTHETIC DS212. DIGISYNTHETIC DS212 13 pages. 24-bit dual engine automatic feedback destroyer/parameter eq

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Reconization & situation. In solely speech transmission, you may lower the feedback sensitivity to -9dB.

This will compress feedback speedily. On the other hand, increase in feedback sensitivity (e.g. -3dB) will be

More stabilize, but will be slower in detecting the feedback signal.

SINGLE mode in filtering process will analyze music signal automatically in order to detect feedback

frequencies. Once detected the feedback frequencies, filter will set its parameters to compress feedback

automatically. As filter is lock on detected feedback frequencies, thus these types of mode are very suitable

for compressing feedback with constant frequency. Effective application such as fixed located microphone

(e.g. inside a permanent installed conference room system). Although Filter will adjust automatically and

enter to a lock mode to fix the frequencies, but the octave band and depth of filter are still effective for

feedback frequencies. Once feedback frequencies move, there will be an increase in octave band range

resulting feedback in preference and decrease in gain till feedback repeated.

All moveable microphones are advice to work with AUTO mode for feedback control as they always have

changeable feedback frequencies. Under AUTO mode operation, filter will follow & compress feedback

frequencies even frequencies moved about. Filter will set its parameter as narrow band as possible and not

to affect musical signal.

3.4 Sequence Select

In order to store and save your favorable preset, DS212 consist of 10 USER program preset sequence and

shortcut preset sequence. All operated parameters are able to store in shortcut sequence manual for user to

select desire program. All data is good for 20 years and above storage memory. In shortcut preset (display

"0". It acts as user's basic sequence, NOT user's memory channel), all filter maintain at its parameter mode,

octave band will set at 1 time frequency range, frequency as 500Hz and 0dB gain.

3.4.1 Adjusting Sequence

After power is on, DS212 will display previously used preset value. Turning jog wheel to select your

desire preset value.

3.4.2 Program Sequence Select

Fig. 3.1 Displays all Filter mode program.

To alter filter mode: First, press FIL SEL (filter select) button and select filter from 1~12 by jog wheel. Use

CH (channel select) button not only to select left

Then press FILTER MODE (filter mode) button and turn rotary jog wheel to select filter mode.

If "LOCK" displays to indicate there is a filter from SINGLE mode already in processing with feedback situation.

You are not able to release this filtration by going back to SINGLE mode. Once discover new feedback point,

DS212 will immediately shirt the previous filter frequency to a new one. If you escape from AUTO & SINGLE

mode and entering parameter mode, filter will remain all parameters that have been set.

3.4.3 Adjusting Filter parameter

In order to adjust Filter setting, it must be set inside parametric EQ mode. Press jog wheel to select FREQ

(frequency) menu, turn jog wheel to select desire ISO frequency. In FINE (fine) Manual, user is able to

fine tune selected ISO frequency (in1/60-octave steps) within 1/3 octave band to display mathematics ratio

between value & confirmed frequency, and detect desire frequency speedily. At this moment, user may

adjust filter octave band from 2 times frequency range to 1/60 times frequency range by selecting BAND

Display

Operation Modes

OFF

PEQ

Parametric EQ

AUTO

SING

LOCK

Fig.3.1 DS212 Filter Operation Modes

right channel but also selection of both left

Disable

Automatic

Single

Lock

and

right channel.

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