User Manual
Table Of Contents
- ProVisionaire Design
- Contents
- 1. Introduction
- 2. Audio Components
- 2.1. The Difference Between Mono, Stereo, and Multi
- 2.2. How to Control Control Signals
- 2.3. Acoustic Echo Canceller (AEC)
- 2.4. Ambient Noise Compensator (ANC)
- 2.5. Audio Detector
- 2.6. Auto Gain Control (AGC)
- 2.7. Combiner: Room Combiner, Room Combiner plus Automixer
- 2.8. DCA
- 2.9. Delay
- 2.10. Dynamics: Compressor
- 2.11. Dynamics: Comp260
- 2.12. Dynamics: De-Esser
- 2.13. Dynamics: Ducker
- 2.14. Dynamics: Gate
- 2.15. Dynamics: Limiter
- 2.16. Dynamics: Paging Ducker
- 2.17. Dynamics: Program Ducker
- 2.18. Effect: Ping Pong Delay
- 2.19. Effect: REV-X
- 2.20. EQ: GEQ
- 2.21. EQ: PEQ
- 2.22. Fader
- 2.23. Feedback Suppressor: Notch FBS
- 2.24. Feedback Suppressor: Pitch Shift FBS
- 2.25. Filter: BPF
- 2.26. Filter: HPF
- 2.27. Filter: LPF
- 2.28. Input/Output: Dante In
- 2.29. Input/Output: USB In
- 2.30. Input/Output: Dante Out
- 2.31. Input/Output: USB Out
- 2.32. Input/Output: SD Card
- 2.33. Meter
- 2.34. Mixer: Delay Matrix, Matrix Mixer
- 2.35. Mixer: Dugan Automixer
- 2.36. Oscillator
- 2.37. Polarity
- 2.38. Probe
- 2.39. Router
- 2.40. Source Selector
- 2.41. Speaker Processor: Standard SPP
- 2.42. Speaker Processor: C-Series SPP (FIR)
- 3. Control Components
- 3.1. Control Methods for Control Components
- 3.2. Input (Normalized Value): Button
- 3.3. Input (Value): Button
- 3.4. Input (Normalized Value): Radio Button
- 3.5. Input (Value): Radio Button
- 3.6. Input (Normalized Value): Fader
- 3.7. Input (Value): Fader
- 3.8. Processing (Normalized Value): Logic
- 3.9. Processing (Normalized Value): NOT
- 3.10. Processing (Normalized Value): Flip-Flop
- 3.11. Processing (Normalized Value): Invert
- 3.12. Processing (Normalized Value): Compare
- 3.13. Processing (Normalized Value): Difference
- 3.14. Processing (Normalized Value): Max/Min
- 3.15. Processing (Value): Negate
- 3.16. Processing (Value): Compare
- 3.17. Processing (Value): Multi Compare
- 3.18. Processing (Value): Difference
- 3.19. Processing (Value): Max/Min
- 3.20. Processing: Delay
- 3.21. Processing: External Events
- 3.22. Processing: Suspend
- 3.23. Processing: Router
- 3.24. Controller: GPI In
- 3.25. Controller: GPI Out
- 3.26. Controller: Scheduler
- 3.27. Parameter Set
- 3.28. Snapshot
2.24. Feedback Suppressor: Pitch Shift FBS
The Feedback Suppressor (subsequently referred to as FBS) is a function that prevents the unpleasant
acoustic feedback that occurs when sound from a speaker is picked up by a mic and re-amplified. In
addition to being unpleasant, acoustic feedback places a strain on the speakers, and can damage them.
To prevent such feedback, place the speakers so that their sound will not be picked up by the mic and
amplified. If acoustic feedback still occurs, you can use FBS to improve the feedback margin.
Pitch Shift FBS slightly shifts the pitch of the frequency point that is feeding-back, thereby ending
the feedback loop.
2.24.1. “Pitch Shift FBS” component editor
① Pitch Shift FBS [ON] button
Switches the Pitch Shift FBS function between enabled and disabled. Pitch Shift FBS operation will
begin when you turn this on.
② Mode list box
Selects the type of input signal.
The modes are as follows.
•
Speech
Choose this if the input signal is speech.
•
Music
Choose this if the input signal is music.
③ [SUPPRESSION LEVEL] knob
Specifies the amount by which feedback is suppressed. Higher values produce a stronger effect.
④ [Cents]
Indicates the amount of pitch change applied by the effect, in units of cents.
2. Audio Components
ProVisionaire Design Component Guide | 71