User Manual
Table Of Contents
- Introduction
- Audio Components
- The Difference Between Mono, Stereo, and Multi
- How to Control Control Signals
- Acoustic Echo Canceller (AEC)
- Ambient Noise Compensator (ANC)
- Audio Detector
- Auto Gain Control (AGC)
- Combiner
- Room Combiner/Room Combiner plus Automixer
- ■ “Room Combiner” component editor/”Room Combiner plus Automixer” component editor
- ■ “Room Combiner” component editor/”Room Combiner plus Automixer” component editor
- Combiner parameter setting window (Room Combiner)
- Combiner parameter setting window (Room Combiner plus Automixer)
- Control
- Control
- Dugan Automixer window (Room Combiner plus Automixer)
- Room Combiner/Room Combiner plus Automixer
- DCA
- Delay
- Dynamics
- REV-X
- EQ
- Fader
- Feedback Suppressor
- Filter
- Input/Output
- Meter
- Mixer
- Oscillator
- Polarity
- Probe
- Router
- Source Selector
- Speaker Processor
- Control Components
- Control Methods for Control Components
- Trigger
- Button (Normalized Value)
- Button (Value)
- Radio Button (Normalized Value)
- Radio Button (Value)
- Fader (Normalized Value)
- Fader (Value)
- Processing
- Logic (Normalized Value)
- NOT (Normalized Value)
- Flip-Flop (Normalized Value)
- Invert (Normalized Value)
- Compare (Normalized Value)
- Difference (Normalized Value)
- Max/Min (Normalized Value)
- Negate (Value)
- Compare (Value)
- Multi Compare (Value)
- Difference (Value)
- Max/Min (Value)
- Delay
- External Events
- Suspend
- Router
- Other
- GPI In
- GPI Out
ProVisionaire Design DME7 Component Guide
69
Filter
A filter allows a specific frequency region to pass and attenuates other frequency regions.
The DME7 provides three types of filter: BPF (band-pass filter), HPF (high-pass filter), and
LPF (low-pass filter). Select either Mono, Stereo or Multi when you place this component in
the design sheet. The illustrations used in the following explanation are for the case of
Stereo.
The filter attenuation amount and type can be selected from the [HPF] list box and the [LPF]
list box in each component editor.
The filter attenuation amount can be set to [6dB/Oct], [12dB/Oct], [18dB/Oct], [24dB/Oct],
[36dB/Oct] or [48dB/Oct]. Lower values apply more gentle attenuation; higher values apply
steeper attenuation.
Each type of filter is described below.
• Thru
No filter will be applied. There will be no attenuation; the response will be the same at
all frequencies.
• AdjustGc (Adjustable Gc)
The Gc knob will appear when you select this.
Adjusts the Gc (gain at the cutoff frequency) in a range of –6 to +6 dB. Setting this to –
3 dB will produce a Butterworth filter, and setting this to –6 dB will produce a Linkwitz-
Riley filter.
• Butrwrth (Butterworth)
This is the most common response. The passed region is flat, and the gain at the cutoff
frequency is –3 dB.
• Bessel
This curve emphasizes the phase response; the attenuation is more gradual than
Butterworth, but the waveform will not be distorted when a square wave is passed
through it.
• Linkwitz (Linkwitz-Riley)
The order of this filter will be a power of two; the summed voltage of the LPF and HPF
outputs will produce a gain of 0 dB across the entire frequency range. The passed
region is flat, and the gain at the cutoff frequency is –6 dB.
Audio