dbx Pro QUANTUM 41, 4.12 Ambience, 4.13 TCM, 4.14 De-Esser

®

Detailed Parameters Section 4

QUANTUM

41

QUANTUM User Manual

Ambience uses a combination of gain and compression to enhance low level information.

Reverb tails and acoustic guitar finger picking are examples of sounds that can be enhanced by

using the Ambience effect.

Ambience On/Off

Sort of self explanatory by now.

Amount 1.0:1 to 5:1

This sets the amount of ambience.

Width 10 to 30 dB

This controls the portion of the signal that the ambience is applied to.

Thresh -60 to 0 dB

Sets the threshold of the ambience processor.

Transient Capture Mode or TCM™ was first seen in the dbx 172 Super Gate. Basically what it

does is delay the input of the VCA enough that the detector is able to read ahead in the signal.

With a long enough TCM™ time it is possible to have a gate start to open or compressor start

to compress before the signal hits the VCA. This can be used to achieve very intelligent limit-

ing and gating along with very smooth and transparent compression. Once the TCM™ is turned

on it works on the compressor, gate and limiter while in both multiband and broadband modes.

To keep the multiband dynamic elements phase coherent, there is only one TCM™ time for all

bands of the gate, compressor, and limiter.

TCM™ On/Off

This is a global control and turns the TCM™ on or off for all compressors, limiters, and gates.

Time 0 to 85 m Sec

This sets the amount of the TCM™ delay. The longer the time, the more time the unit has to

react to fast transient peaks. Care must be used however as a long TCM™ time coupled with a

fast release on the compressor or limiter can cause them to release before the peak even hits.

The De-Esser is only available in non-multiband chains, e.g., Stereo Broadband or Dual Mono.

A De-Esser is primarily used to remove the "S" or sibilant sounds in a vocal track.

Within the De-Esser menu the following parameters are user adjustable:

De-Esser On/Off

You guessed it. Turns the De-Esser on or off

Freq.800 Hz to 8.00 kHz

This is the center frequency the De-Esser uses when in Band Pass mode or the corner frequency

used when in High Pass mode.

4.14 De-Esser4.13 TCM™4.12 Ambience

Contents

Main IMPORTANT SAFETY INSTRUCTIONS WARNING FOR YOUR PROTECTION PLEASE READ THE FOLLOWING: SAFETY INSTRUCTIONS Normal Alt BLACK IMPORTANT SAFETY INSTRUCTIONS ELECTROMAGNETIC COMPATIBILITY DECLARATION OF CONFORMITY Introduction Section 1 - Getting Started Section 2 - Navigation Section 3 - Software Operations Section 4 - Detailed Parameters Figure Index Page Page INTRODUCTION Introduction 1.2 Service Contact Info iii 1.3 Warranty 1.1 What is QUANTUM? (cont.) Page Page 2 1.1 Rear Panel Connections 1.2 Front Panel 1.2 Front Panel (cont.) Analog Level Meters TSE Audio Level Meters LCD Display Data Wheel / Selector 4 1.2 Front Panel (cont.) 1.3 QUANTUM Wizard 1.4 Signal Path Getting Started Section 1 5 The Quantum is a Mastering Processor that has many features: 1.5 Mastering and the Quantum 6 1.5 Mastering and the Quantum (cont.) Page 8 4 All Bands 1 Navigating the"Multiband Compressor" NAVIGATION 2.1 Multiband Compressor 9 2.2 Broadband Compressor Navigating the "Broadband Compressor" 10 2.3 Multiband Gate Navigating the "Multiband Gate" 11 2.4 Broadband Gate Navigating the "Broadband Gate" 12 2.5 Multiband Limiter Navigating the "Multiband Limiter" Navigating the"Broadband Limiter" 14 2.7 EQ/XOver EQ XOver Navigating the "Multiband EQ/XOver" 15 2.8 EQ/SEQ The "EQ/SEQ" button toggles between EQ and SEQ. Depress once to access EQ and a second time for SEQ EQ SEQ Navigating the "Broadband EQ/SEQ" SChain On/Off Type 16 2.9 Norm/Output Normalize Output Navigating "Norm/Output" 17 2.10 Other Navigating "Other" 18 2.11 Utility Navigating "Utility" Page 20 Fig.3.1 3.1 FX Chains Dynamics SOFTWARE OPERATIONS 21 3.1 FX Chains (cont.) Fig 3.2 Chain Type: Stereo Broadband Dynamics 22 3.1 FX Chains (cont.) Chain Type: Mono Dynamics 23 3.2 Programs/Setups Program: 1 "Pop Master 1" Stereo Setup Library 24 3.3 Saving a Setup Program 3: "Pop Master 1" Mono Setup Library 3.2 Programs/Setups (cont.) 25 Replace Old: 3.4 Saving a Program Store New: Saving a program 26 BYPASS 3.6 Meters Analog Meters TSE Analog Meters 27 Digital Meters Meter Options Compressor Gain Reduction Meter Input/Output Curve 28 Limiter 3.7 Monitor Outputs Gate / Expander De-Esser Page 30 4.1 Multiband Compression Compressor LOC/On/Off Band 1 to 4 On/Off OverEasy 1-10 (per band or global) 31 4.1 Multiband Compression (cont.) Threshold -60 to 0 dB (per band or global) Ratio 0.75 to Inf:1 (per band or global) Gain -20 to +20 dB (per band or global) 32 4.2 Broadband Compression Compressor On/Off OverEasy 1-10 Auto On/Off 33 4.2 Broadband Compression (cont.) Gain -20 to +20 dB 4.3 Multiband Gate Attack 0.1 m Sec to 200 m Sec 34 4.3 Multiband Gate (cont.) 4.4 Broadband Gate 35 4.4 Broadband Gate (cont.) 4.5 Multiband Limiting 36 4.5 Multiband Limiting (cont.) Attack .01 to 200 m Sec (per band or global) 4.6 Broadband Limiting Release 360 to 5 dB / Sec (per band or global) 37 4.6 Broadband Limiting (cont.) Release 360 to 5 dB / Sec (per band or global) 4.7 EQ EQ On/Off 38 4.7 EQ (cont.) 4.8 XOver 39 4.9 SEQ 40 4.9 SEQ (cont.) 4.10 Type IV 4.11 Stereo Adjust 41 4.12 Ambience 4.13 TCM 4.14 De-Esser 42 4.14 De-Esser (cont.) Amount 0 to 100% 4.15 Normalization 4.16 Output Page Page Page Utilities 46 Section 5 QUANTUM UTILITIES 5.1 Input 5.2 Output CONNECTIONS 47 5.2 Output (cont.) SCMS 5.3 Digital Input Controls 5.4 MIDI CC Map Section 5 QUANTUM 5.6 MIDI Program Changes 5.7 SYSEX Dump 5.8 Setup SYSEX Data MIDI CH Page Page Page 52 6.1 Analog Mastering 53 6.2 Digital Mastering 54 6.3 DAW to DAT 55 6.4 Analog T racking CHANNEL TWO CHANNEL ONE 2. Change the CLOCK to INT96. 56 CHANNEL TWO CHANNEL ONE 2. Change the CLOCK to desired sample rate. 4. Set the Bits to match the digital recorders input format. 57 6.6 Analog Mixing 58 6.7 Digital Mixing 59 6.8 Analog to Digital Converter CHANNEL TWO CHANNEL ONE 2. Change the CLOCK to desired internal sample rate. 60 6.9 Sample Rate Converter Page Appendix A QUANTUM QUANTUM dbx Type IV Conversion System White Paper by Roger Johnson Page Page Appendix B QUANTUM Figure 3a - Signal Having Low and High Frequency Content Amplitude Time Amplitude } 68 MIDI Clock Info Appendix C QUANTUM C.1 Clock Modes Possible Clock Modes 1.Analog In 2.Digital in - AES Appendix C Miscellaneous Clock Info 69 C.2 QUANTUM Sync Input 70 Appendix C QUANTUM Sync Source A Quantum C Sync Source A Quantum C C.2 QUANTUM Sync Input (cont.) Daisy Chain Configuration Appendix D Hex Value Definition Procedures Request One Setup (02h) Receive One Setup (43h) Appendix D QUANTUM Request Bulk Dump (49h) Receive Bulk Dump (48h) Receive Key Scan Code (54h) Receive Key Accepted (56h) Appendix D 74 Appendix E QUANTUM 74 E.1 MIDI CC - MultiBand Chains Appendix E 75 E.1 MIDI CC - MultiBand Chains (cont.) E.2 MIDI CC - Stereo Non-MultiBand 76 Appendix E QUANTUM E.2 MIDI CC - Stereo Non-Multiband (cont.) E.3 MIDI CC - Dual Mono Chains Appendix E 77 E.3 MIDI CC - Dual Mono Chains (cont.) 78 Appendix F QUANTUM Factory Presets F.1 Factory Programs Appendix F 79 Stereo: Mono: F-2 Factory Setups Appendix G QUANTUM Specifications