Mackie Stereo and Mono Side chain Compressor Especificações

DigiRack™ Plug-insVersion 8.0

DigiRack Plug-ins Guide4Conventions Used in This GuideAll Digidesign guides use the following conven-tions to indicate menu choices and key com-mands:

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Chapter 19: Other AudioSuite Plug-ins 95chapter 19Other AudioSuite Plug-ins (AudioSuite Only)DC Offset RemovalThe DC Offset Removal plug-in removes DC

DigiRack Plug-ins Guide96To duplicate an audio selection:1 Select the audio you want to duplicate.2 Choose AudioSuite > Other > Duplicate.3 E

Chapter 19: Other AudioSuite Plug-ins 97NormalizeThe Normalize plug-in optimizes the volume level of an audio selection. Use it on material re-corded

DigiRack Plug-ins Guide98ReverseThe Reverse plug-in replaces the audio with a re-versed version of the selection. This is useful for creating reverse

Appendix A: DSP Requirements for TDM Plug-ins 99appendix aDSP Requirements for TDM Plug-insThe number of TDM plug-ins you can use at one time depends

DigiRack Plug-ins Guide100DSP RequirementsDSP requirements for DigiRack TDM plug-ins are provided on the following pages.Mono and Stereo DigiRack Plug

Appendix A: DSP Requirements for TDM Plug-ins 101Maximum instances are approximately half at 88.2 kHz and 96 kHz, and approximately a quarter at 176.4

DigiRack Plug-ins Guide102“Partial” indicates that a single instance of the multi-mono plug-in is sharing more than 1 DSP chip.* Instance counts are p

Appendix B: DSP Delays Incurred by TDM Plug-ins 103appendix bDSP Delays Incurred by TDM Plug-insVirtually all TDM plug-ins incur some amount of signal

Chapter 2: Click 5chapter 2Click(TDM and RTAS)The Click plug-in creates an audio click during session playback that you can use as a tempo ref-erence

DigiRack Plug-ins Guide104Mod Delay I/II (medium)4Mod Delay I/II (long)4Mod Delay II (extra long)4Dither4POW-r Dither4SansAmp PSA-13Signal Generator4S

Index 105Numerics7 Band, 2–4 Band, or 1 Band (EQ III) 35AAccuracy control 60, 84Algorithm control 16AudioSuiteInput Mode selector 91plug-ins 2Preview

DigiRack Plug-ins Guide106GGain control 10Gain plug-in 96HHall algorithm 16HD-series cardsDSP delays 103Hi Frequency Cut control 17High-Pass Filter co

Index 107PPan control 10Peak 77Peak + RMS 77peak hold 78Peak On All Tracks mode 97Peak On Each Track mode 97phase cancellation 80Phase Invert button 7

DigiRack Plug-ins Guide108Time Shift 85Audio Gain control 86Audio Mode pop-up menu 86Audio Range pop-up menu 86Audio section 86changing pitch 92changi

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Digidesign Legacy Plug-ins Guide6Creating a Click TrackTo create a click track with the Click plug-in:1 Ensure that the Options > Click is enabled

Chapter 3: DigiRack D-Fx Plug-ins 7chapter 3DigiRack D-Fx Plug-ins (AudioSuite Only)D-Fx provides four modules: •Chorus•Flanger•Multi-Tap Delay• Pin-P

DigiRack Plug-ins Guide8The range of the Low-Pass Filter is 20 Hz to 19.86 kHz, with a maximum value of Off (which effectively means bypass).Delay Set

Chapter 3: DigiRack D-Fx Plug-ins 9When the Sum Inputs button is selected, the LFO waveform on the right channel is phase in-verted to enhance the mon

DigiRack Plug-ins Guide10Gain Provides individual control of the input level for each of the four delay lines (or “taps”). Individually adjust the Gai

Chapter 3: DigiRack D-Fx Plug-ins 11The range of the Low-Pass Filter is 20 Hz to 19.86 kHz, with a maximum value of Off (which effectively means bypas

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Chapter 4: Dither 13chapter 4Dither(TDM and RTAS)The Dither plug-in minimizes quantization arti-facts when reducing the bit depth of an audio signal t

Legal NoticesThis guide is copyrighted ©2008 by Digidesign, a division of Avid Technology, Inc. (hereafter “Digidesign”), with all rights reserved. Un

DigiRack Plug-ins Guide14Dither ControlsBit ResolutionUse this pop-up menu to choose one of three possible resolutions for the Dither processing. Set

Chapter 5: D-Verb 15chapter 5D-Verb(TDM, RTAS, and AudioSuite)D-Verb is a studio-quality reverb provided in TDM, RTAS, and AudioSuite formats. D-Verb

DigiRack Plug-ins Guide16AlgorithmThis control selects one of seven reverb algo-rithms: Hall, Church, Plate, Room 1, Room 2, Ambience, or Nonlinear. S

Chapter 5: D-Verb 17Pre-DelayPre-Delay determines the amount of time that elapses between the original audio event and the onset of reverberation. Und

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Chapter 6: Dynamics III 19chapter 6Dynamics III(TDM, RTAS, and AudioSuite)Dynamics III provides three modules: • Compressor/Limiter• Expander/Gate•De-

DigiRack Plug-ins Guide20Input and Output MetersThe Input (In) and Output (Out) meters show peak signal levels before and after dynamics pro-cessing:G

Chapter 6: Dynamics III 21LFE Enable(Pro Tools HD and Pro Tools LE with Complete Production Toolkit Only)The LFE Enable button (located in the Options

DigiRack Plug-ins Guide22To indicate overshoots (when an incoming sig-nal peak is too fast for the current compression setting) the cursor temporarily

Chapter 6: Dynamics III 23About LimitingLimiting prevents signal peaks from ever ex-ceeding a chosen threshold, and is generally used to prevent short

Contents iiicontentsChapter 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DigiRack Plug-ins Guide24An orange arrow on the Input meter indicates the current threshold, and can also be dragged up or down to adjust the threshol

Chapter 6: Dynamics III 25KneeThe Knee control sets the rate at which the com-pressor reaches full compression once the threshold has been exceeded.As

DigiRack Plug-ins Guide26Expander/Gate IIIThe Expander/Gate plug-in applies expansion or gating to audio material, depending on the ratio setting. Abo

Chapter 6: Dynamics III 27ThresholdThe Threshold (Thresh) control sets the level be-low which an input signal must fall to trigger ex-pansion or gatin

DigiRack Plug-ins Guide28ReleaseThe Release control sets how long it takes for the gate to close after the input signal falls below the threshold leve

Chapter 6: Dynamics III 29Using De-Essing EffectivelyTo use de-essing most effectively, insert the De-Esser after compressor or limiter plug-ins.The F

DigiRack Plug-ins Guide30Gain Reduction MeterThe Gain Reduction meter indicates the amount the input signal is attenuated, in dB. This meter shows dif

Chapter 6: Dynamics III 31Using the Side-Chain Input in Dynamics III(Compressor/Limiter and Expander/Gate Only)Dynamics processors typically use the d

DigiRack Plug-ins Guide32HF and LF Filter Enable ButtonsThe HF Filter Enable and LF Filter Enable but-tons toggle the corresponding filter in or out o

Chapter 6: Dynamics III 33Using an External Key Input for Side-Chain ProcessingTo use a filtered or unfiltered external key input to trigger dynamics

DigiRack Plug-ins GuideivChapter 6. Dynamics III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Chapter 7: EQ III 35chapter 7EQ III(TDM, RTAS, and AudioSuite)The EQ III plug-in provides a high-quality 7 Band, 2–4 Band, or 1 Band EQ for adjusting

DigiRack Plug-ins Guide361 Band EQThe 1 Band EQ is available in TDM, RTAS, and AudioSuite formats.The 1 Band EQ has its own window, with six se-lectab

Chapter 7: EQ III 37Dragging in the Frequency Graph DisplayYou can adjust the following by dragging the control points directly in the Frequency Graph

DigiRack Plug-ins Guide38Q Sets the width of the narrow band of mid-range frequencies centered around the Fre-quency setting.To switch an EQ III contr

Chapter 7: EQ III 39EQ Band ControlsThe individual EQ bands on each EQ III config-uration have some combination of the follow-ing controls, as noted b

DigiRack Plug-ins Guide40Frequency Graph Display(7 Band EQ and 2–4 Band EQ Only)The Frequency Graph display in the 7 Band EQ and the 2–4 Band EQ shows

Chapter 7: EQ III 417 Band EQHigh-Pass/Low NotchThe 7 Band EQ has the following available bands: High-Pass/Low Notch, Low-Pass/High Notch, Low Shelf/L

DigiRack Plug-ins Guide42The High-Pass/Notch band is switchable be-tween high-pass filter and notch EQ functions. By default, this band is set to High

Chapter 7: EQ III 43Low Shelf/Low PeakThe Low Shelf/Peak band is switchable between low shelf EQ and low peak EQ functions. By de-fault, this band is

Contents vChapter 13. Signal Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71Signal Gener

DigiRack Plug-ins Guide44Low-Mid PeakThe Low-Mid Peak band boosts or cuts frequen-cies centered around the Frequency setting. The width of the band is

Chapter 7: EQ III 45High-Mid PeakThe High-Mid Peak band boosts or cuts frequen-cies centered around the Frequency setting. The width of the band is de

DigiRack Plug-ins Guide46The High Shelf and High Peak Gain controls and their corresponding graph elements are dis-played on-screen in blue. 2–4 Band

Chapter 7: EQ III 471 Band EQThe Frequency Graph display in the 1 Band EQ shows a control dot that indicates the center fre-quency (Peak, Shelf and No

DigiRack Plug-ins Guide48Notch FilterThe Notch Filter attenuates a narrow band of frequencies centered around the Frequency set-ting. No gain control

Chapter 7: EQ III 49Low-Pass FilterThe Low-Pass filter attenuates all frequencies above the cutoff frequency setting at the se-lected rate (6 dB, 12 d

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Chapter 8: Mod Delay II 51chapter 8Mod Delay II(TDM, RTAS, and AudioSuite)There are six different Mod Delay II plug-ins, ca-pable of different maximum

DigiRack Plug-ins Guide52LPF (Low-Pass Filter) Controls the cutoff fre-quency of the Low-Pass Filter. Use the LPF set-ting to attenuate the high frequ

Chapter 8: Mod Delay II 53Duration Specifies a desired delay from a musical perspective. Enter the desired delay by selecting appropriate note value (

DigiRack Plug-ins GuideviAppendix A. DSP Requirements for TDM Plug-ins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99DSP Requirements

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Chapter 9: Pitch 55chapter 9Pitch(TDM Only)The Pitch plug-in is designed for a variety of au-dio production applications ranging from pitch correction

DigiRack Plug-ins Guide56Mix Adjusts the ratio of dry signal to effected sig-nal in the output. In general, this control should be set to 100% wet, un

Chapter 9: Pitch 57In general, small, narrow-range pitch shifts re-quire longer crossfades and large shifts require smaller ones. The disadvantage of

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Chapter 10: Pitch Shift 59chapter 10Pitch Shift(AudioSuite Only)The Pitch Shift plug-in adjusts the pitch of any source audio file with or without a c

DigiRack Plug-ins Guide60Use the Crossfade slider to adjust and optimize crossfade times. For audio material with sharper attack transients, use small

Chapter 11: POW-r Dither 61chapter 11POW-r Dither(TDM and RTAS, Pro Tools HD and Pro Tools LE Only)The POW-r Dither plug-in is an advanced type of dit

DigiRack Plug-ins Guide62The POW-r Dither plug-in provides three types of noise shaping, each with its own characteris-tics. Try each noise shaping ty

Chapter 12: ReWire 63chapter 12ReWire(RTAS Only)Pro Tools supports ReWire version 2.0 technol-ogy developed by Propellerheads Software. Re-Wire is ava

Chapter 1: Introduction 1chapter 1IntroductionPlug-ins are special-purpose software compo-nents that provide additional signal processing and other fu

DigiRack Plug-ins Guide64Figure 1. Audio and MIDI signal flow between Pro Tools and a ReWire client application (Reason shown)Audio from ReWire clien

Chapter 12: ReWire 65ReWire RequirementsTo use the ReWire plug-in, you will need: • A Digidesign-qualified Pro Tools system• ReWire-compatible client

DigiRack Plug-ins Guide66Using ReWireThe ReWire plug-in is installed when you install Pro Tools. All inter-application communications between Pro Tool

Chapter 12: ReWire 67If your ReWire client application is a sequencer and you want to begin synchronized playback with Pro Tools, press the Spacebar o

DigiRack Plug-ins Guide686 Adjust the parameter for which you want to record MIDI CC data. Parameter changes are re-corded to the Pro Tools MIDI trac

Chapter 12: ReWire 69Tempo and Meter ChangesPro Tools transmits both Tempo and Meter data to ReWire client applications, allowing ReWire-compatible se

DigiRack Plug-ins Guide70Automating ReWire Input SwitchingReWire supports automation for switching in-puts during playback.To automate switching input

Chapter 13: Signal Generator 71chapter 13Signal Generator(TDM, RTAS, and AudioSuite)The Signal Generator plug-in produces audio test tones in a variet

DigiRack Plug-ins Guide72AudioSuite Processing with Signal GeneratorTo create an audio region using the Signal Generator plug-in:1 Make a selection i

Chapter 14: SignalTools 73chapter 14SignalTools(TDM and RTAS)DigiRack SignalTools metering plug-ins provide two metering modules: •SurroundScope •Phas

DigiRack Plug-ins Guide2• Other DigiRack AudioSuite Plug-ins•DC Offset Removal• Duplicate•Gain•Invert• Normalize• ReversePlug-in FormatsThere are thre

DigiRack Plug-ins Guide74Surround DisplaySurroundScope detects the multi-channel for-mat of the track and displays each channel in the signal in a cir

Chapter 14: SignalTools 75Lissajous Meter DisplayThe PhaseScope Lissajous Meter displays the re-lationship between the amplitude and phase of a stereo

DigiRack Plug-ins Guide76SurroundScope With SurroundScope you can se-lect the two channels to compare by clicking the channel buttons around the Surro

Chapter 14: SignalTools 77Auto Reset When enabled, causes the start time of the Leq(A) measurement window to be auto-matically reset whenever playback

DigiRack Plug-ins Guide78VENUE Provides Peak metering behavior with a meter scale calibrated specifically for Digidesign VENUE systems. Reference cali

Chapter 15: TimeAdjuster 79chapter 15TimeAdjuster(TDM and RTAS)The TimeAdjuster plug-in provides three func-tions: • Compensation for delays due to TD

DigiRack Plug-ins Guide80Delay Provides up to 8192 samples of delay com-pensation adjustment, or general adjustment of phase relationships of audio re

Chapter 15: TimeAdjuster 815 Change the polarity back to normal. 6 Save the TimeAdjuster setting for later use.Comb-Filter Effect CancellationAdjust

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Chapter 16: Time Compression/Expansion 83chapter 16Time Compression/Expansion(AudioSuite Only)The Time Compression/Expansion plug-in ad-justs the dura

Chapter 1: Introduction 3System Requirements and CompatibilityTo use DigiRack plug-ins you need any the fol-lowing:• A Digidesign-qualified Pro Tools

DigiRack Plug-ins Guide84Crossfade length affects the amount of smooth-ing performed on audio material. This prevents audio artifacts such as clicks f

Chapter 17: Time Shift 85chapter 17Time Shift(AudioSuite Only)Time Shift provides high quality time compres-sion and expansion (TCE) algorithms and fo

DigiRack Plug-ins Guide86AudioThe Audio section of Time Shift provides con-trols for specifying the type of audio you want to process and gain attenua

Chapter 17: Time Shift 87TimeThe Time section of Time Shift provides controls for specifying the amount of time compression or expansion as well as th

DigiRack Plug-ins Guide88by –24.00 semitones (–2 octaves) to +24.00 semi-tones (+2 octaves), with fine resolution in cents. Adjust the Formant Shift c

Chapter 17: Time Shift 89change its content quickly in time, as opposed to parts of the sound which are more sustained. Adjust the Threshold control o

DigiRack Plug-ins Guide90Post Production Pull Up and Pull Down TasksTable 1 on page 90 provides information on TCE settings for common post production

Chapter 17: Time Shift 91AudioSuite Input ModesTime Shift supports the Pro Tools AudioSuite Input Mode selector for use on mono or multi-input process

DigiRack Plug-ins Guide92Processing AudioTime Shift lets you change the time and pitch of selected audio independently or concurrently. To change the

Chapter 18: Trim 93chapter 18Trim(TDM and RTAS)The Trim plug-in can be used to attenuate an au-dio signal from –∞ (Infinity) dB to +6 dB or –∞ (Infini