digital audio weiss engineering ltd. Florastrasse 42, 8610 Uster, Switzerland +41 44 940 20 06 +41 44 940 22 14 http://www.weiss.ch / http://www.weiss-highend.com GAMBIT DS1-MK3 OPERATING MANUAL Software Version: 0S: 3.0, DSP: 3.
digital audio weiss engineering ltd. Florastrasse 42, 8610 Uster, Switzerland +41 44 940 20 06 +41 44 940 22 14 http://www.weiss.ch / http://www.weiss-highend.com Authors: Andor Bariska, Daniel Weiss, Weiss Engineering LTD. Weiss Engineering LTD. reserves the right to make changes to product specification or documentation without prior notice. Updated manuals and datasheets are available at our website for downloading. Weiss Engineering LTD.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 FRONT PANEL FRONT PANEL menu menu DS1-MK3 gambit series digital de-esser / compressor / limiter over over 11 2 2 bandwidth release delay attack release fast average release slow off bypass gain / data store recall A-B copy safe M/S ch1/ch2 ganged frequency soft-knee threshold ratio max. gain makeup monitor snapshots Graphic 1: Front Panel Elements Graphic 2: Display Elements Weiss Engineering Ltd.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 FRONT PANEL Front Panel Groups The front panel of the DS1-MK3 offers several control and display features. Control Refer to Graphic 1: Front Panel Elements - Menu- and softkeys p. 7 - Snapshot keys p. 19 - ganged / channel select keys p. 16 - Gain / Data controller p. 8 - Crossover controllers p. 12 - Envelope follower controllers p. 10 + - Non-linear transfer curve controllers p.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 INTRODUCTION INTRODUCTION Congratulations on purchasing the Weiss DS1-MK3 De-esser / Compressor ! This two channel digital De-esser / Compressor features linear-phase crossover filters covering the whole audio band. Thus the DS1-MK3 is not just a De-esser but can also be used as band selective or full band Compressor / Limiter. The controls for the two channels can be ganged or unganged (useful for M/S compression).
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 HISTORY UPDATE UPDATE HISTORY Update from DS1 to DS1MK2 v1.0 or v1.1 The main difference between these two versions is the ability of the DS1-MK2 to accept 88.2 / 96kHz input signals. Contrary to the DS1, where double sampling processing was only used in compressor mode, the DS1-MK2 now uses internal up- and downsampling stages and all processing is at 88.2 / 96 kHz.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 OPERATION OPERATION The following explanations assume that the de-esser/compressor is in power-up mode, i.e. no menu is active. If a menu is active, press the “menu” key repeatedly until the status display appears. Status Display Peak-Hold The numeric peak value is measured relative to 0dBFS (digital full scale). Use this value to set the optimum gain for a specific session. Reset it for every session by pressing key B twice.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 Snapshot Display (Key D) OPERATION Gain / Output Gain Bottom line in the status display. Refer to this for information on current workspace and snapshot. There are two workspaces (“A” and “B”) for quick comparison of two de-esser/compressor settings. A workspace can be stored to a snapshot for later use. The number of the last recalled snapshot will be displayed.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 OPERATION Compressor Parameters Following is a detailed description of all parameters that can be adjusted in the compressor stage. Guidelines are given for settings (see also the factory presets), but optimal settings are usually programme dependent, so experimenting and listening is inevitable for satisfying results.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 OPERATION change, audio is muted to avoid audio signal cuts. Graphic 6: System menu Graphic 9: Envelope Parameters Attack and Preview: The longer the attack time, the more will the leading edge of fast transients pass by the gain reduction circuit unaltered (as in Graphic 9 during attack phase). Very fast attack time settings such as 20µs, i.e. one sample period, do catch every transient, but may distort low frequencies.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 OPERATION the gain / data controller ( ) which opens this window: Graphic 10: Gain / Data Knob menu Hit Key B to assign the gain / data knob to the RMS detection timeconstant. The left endstop of this parameter switches the detection to peak mode, as used in all previous DS1 versions. Graphic 11: Timing 2 window Release Delay: Normally the release phase begins immediately after the programme material has fallen in level.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 OPERATION The applied gain reduction from the compressor section is displayed in . Signal Meters: The meters in show the level of the input (horizontally on top of the transfer curve graph) and output of the compressor stage (vertically to the right of the transfer curve). Refer to Graphic 16 and 17 to see the metering points. Graphic 13: Threshold, Ratio, Softknee Band Selective Mode vs.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 Note, the input and output meters on the transfer graph ( ) are connected after the crossover and before the adder. OPERATION Full Range Mode (Graphic 17): In this mode the compressor input meter is at the input of the DS1-MK3. The crossover controllers and the monitor key have no function. filter- band- centre type width frequency Input band stop + Delay Crossover monitor Output Gain Gain band pass X Comp.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 OPERATION Parallel Compressor before limiting. The DS1-MK3 can be used in parallel compression mode, where the compressed signal is added to the straight signal. Parallel band selective compression (Graphic 20): To add even more subtle compression, the compressed signal can be filtered before compression. Using the monitor function, one can listen to the filtered signal for optimal crossover setup.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 OPERATION Starting point for parallel compression: Set the threshold for -50 dBFS, ratio to 2.5:1, attack to the fastest (microseconds), release to mid, around 250-300 ms (adjust to taste if you hear breathing or pumping). The makeup gain governs the amount of compression. Graphic 21: effect of parallel compression Graphic 21 shows the effect of Parallel Compression on the transfer curve (upper graph).
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 Ganged /Unganged The DS1-MK3 allows for independent parameter settings in channels 1 and 2 ( ). If the ganged key is lit, both channels operate with the same parameter set. If the ganged key is not lit, the two channels can operate with different parameters. The CH1/CH2 / M/S key assigns the knobs and the display to the appropriate channel, i.e. key not lit assigns CH1 or M and key lit assigns CH2 or S.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 OPERATION Monitor Key In band selective mode pressing the “monitor” key allows you to listen directly to the processed band, ideal for zooming in on offending material and listening to the effect of the compressor stage. See Graphic 23 above for the Monitor output position. The Monitor output works as follows: DS1-MK3 in ganged mode: The stereo signal is fed forward to the output.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 OPERATION Factory Presets The DS1-MK3 has easily accessible factory presets for a quick setup which can then be refined and adapted to the programme being processed. These factory presets are grouped according to their function: De-Esser: Four applications for high-frequency transients removal. Adjust threshold and crossover frequency as required.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 Snapshots Snapshots are copies of the DS1-MK3 parameter settings. This allows recalling complete set-ups including all parameters and controls settings. Snapshots can be recalled from the front panel or by remote control (e.g. MIDI Program Change). Snapshot access keys are in . To see work- space status refer to the status display ( Status Display p. 7).
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 Backup Snapshots All 128 snapshots can be transferred to another internal non-volatile memory area for later reference. There is enough memory for two complete snapshot sets to be backed up. Press the “menu” key ( ) then choose the “Snapshots” and then the “Backup” option to arrive at the backup display (Graphic 28).
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 Meter Resolution The transfer graph and the compressor peak meters ( ) work with different resolutions to accommodate signals with a wide dynamic range. The resolution for the peak meters and transfer graph can be set in fixed steps of -20dB, -40dB and -80dB, or alternatively, to auto. In auto mode, the display switches to the next step as soon as the transfer graph falls below the current window.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 OPERATION Software Information Press the “menu” key ( ), then select the “System” and the “About” option. This displays a screen with all the relevant information on your DS1-MK3 and how to reach us. Have this page ready when you want to report a problem. Graphic 32: System menu Graphic 33: About screen Weiss Engineering Ltd., Florastr. 42, CH-8610 Uster +41 44 940 20 06 +41 44 940 22 14 http://www.weiss.ch weiss@weiss.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 TECHNICAL DATA TECHNICAL DATA AES/EBU Input Sampling Frequencies: Maximum Input Wordlength: Channel Status Data: Channel Status Bits forwarded to AES/EBU output: Connector: 44.1 kHz, 48.0 kHz, 88.2 kHz or 96kHz 24 Bits Input accepts professional or consumer format. see table below XLR female AES/EBU Output Sampling Frequencies: Output Wordlength: Connector: 44.1 kHz, 48.0 kHz, 88.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 TECHNICAL DATA Output selected: Professional format. Input: Professional format. Output: All bits fed forward (transparent), except for: Byte 2: Bits 0,1,2: 001 (max. sample length= 24bit) Bits 3,4,5: 101 (24 bit word length) Bits 6,7: 00 Input: Consumer format.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 TECHNICAL DATA Power Mains Voltage: Fuse rating: Power Consumption: 110 / 220 Volts with voltage selector 500 mA slow blow 40VA max Overload Number of consecutive over-samples to cause “over” display: 1..16 settable Peak Meters Peak meters timing for compressor input and output stage adhere to AES recommendations. Parameter Table Overall Gain All numbers in dB: -∞ ∞, -80.0, -75.0, -70.0, -65.0, -60.0, -55.0. -50.0, -45.0, -40.0, -35.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 TECHNICAL DATA Attack, Release Delay, Release Fast & Slow, Average, RMS, Preview (when applicable): All numbers are in seconds: 20µ, 40µ, 60µ, 80µ, 100µ, 125µ, 160µ, 200µ, 250µ, 315µ, 400µ, 500µ, 630µ, 800µ, 1m, 1.25m, 1.60m, 2.00m, 2.50m, 3.15m, 4.00m, 5.00m, 6.30m, 8.00m, 10.0m, 12.5m, 16.0m, 20.0m, 25.0m, 31.5m, 40.0m, 50.0m, 63.0m, 80.0m, 100m, 125m, 160m, 200m, 250m, 315m, 400m, 500m, 630m, 800m, 1, 1.25, 1.60, 2.00, 2.50, 3.15, 4.00, 5.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 TECHNICAL DATA Dither Dithering algorithm is implemented using the POW-R set of algorithms. Graph 34 shows the three algorithms at 44.1kHz and 88.2kHz sampling rates each. Graph 34: Output spectrum with 80dBFS / 1kHz sine wave, dithered to 16 Bits, using the three POW-R algorithms at 44.1kHz and 88.2kHz respectively Weiss Engineering Ltd., Florastr. 42, CH-8610 Uster +41 44 940 20 06 +41 44 940 22 14 http://www.weiss.ch weiss@weiss.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 TECHNICAL DATA Remote MIDI Implementation System Inclusive All band parameters plus the controls parameters are remote controllable. Each parameter has its corresponding MIDI controller number. According to the different parameters, the controllers are limited in their range. Invalid values are replaced by the maximum allowable value.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 Ratio 1 Control Change 1011 cccc TECHNICAL DATA 00001011 ($0B) (cccc) Channel No. 0vvv vvvv (vvvvvvv) New Value: 0 - 124 Threshold 1 Control Change 1011 cccc 00001100 ($0C) 0vvv vvvv (cccc) Channel No. (vvvvvvv) New Value: 0 - 60 Gain Makeup 1 Control Change 1011 cccc 00001101 ($0D) (cccc) Channel No. 0vvv vvvv (vvvvvvv) New Value: 0 - 126 Gain 1 Control Change 1011 cccc 00001110 ($0E) (cccc) Channel No.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 Soft Knee 2 Control Change 1011 cccc 00001001 ($1B) 0vvv vvvv TECHNICAL DATA (cccc) Channel No. (vvvvvvv) New Value: 0 - 10 Gain Makeup Mode 2 Control Change 1011 cccc 00001010 ($1C) 0vvv vvvv (cccc) Channel No. (vvvvvvv) New Value: 0= off, 1 = manual, 2= maximum Ratio 2 Control Change 1011 cccc 00001011 ($1D) (cccc) Channel No. 0vvv vvvv (vvvvvvv) New Value: 00001100 ($1E) (cccc) Channel No.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 Monitor Control Change 1011 cccc TECHNICAL DATA 00010100 ($2B) (cccc) Channel No.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 TECHNICAL DATA Version send: Bytecount Value Description 1 F0 Sysex 2 00 Manufacturer's ID 3 30 Manufacturer's ID 4 5A Manufacturer's ID 5 08 Model ID: $0C = Gambit DS1-MK3 6 0000nnnn Device ID: -> Midi channel number 7 00000100 message = send version Message Type 4 8 00000100 OS Version data 9 00000100 DSP Version 10 00000100 Scale Version 11 00000100 Coeff.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 TECHNICAL DATA Addendum to the Manuals of the Gambit Series DS1, DS1-MK2 and DS1-MK3 DeEsser / Compressor / Limiter The graphs on the pages below have been made to convey a better understanding of the dynamic parameters of the Gambit DS1 DeEsser/Compressor. Please also read the appropriate pages in the DS1/DS1-MK2/DS1-MK3 manual to have a proper understanding of the sidechain process.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 Fig. 1 TECHNICAL DATA Fig. 2 Fig. 1 Bypass, this is how the 50% dutycycle sinewave burst looks like. X-axis shows time in milliseconds, Y-axis shows linear level in percentage of full scale. Just like a scope. Fig. 2 A very short preview time combined with a long attack time cause an overshoot at the onstart of the burst.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 Fig. 5 TECHNICAL DATA Fig. 6 Figs. 5 and 6 The effect described in Fig. 4 can be eliminated with the Release Delay parameter. The release is delayed for a certain time and thus can not influence the end of the burst anymore. In Fig 5 the release delay is not quite long enough, while in Fig. 6 there is no release influence visible anymore. Fig. 7 Fig.
OPERATING INSTRUCTIONS FOR GAMBIT DE-ESSER/COMPRESSOR DS1-MK3 Fig. 9 TECHNICAL DATA Fig. 10 Fig. 9 The burst is even longer, causing a longer Release Slow portion. Fig. 10 Still longer burst, with even longer Release Slow portion. Fig. 11 Fig. 12 Figs. 11 to 14 For these figures the Average time is relatively short, causing the average measurement value to follow the peak measurement more quickly than with Fig. 7 to 10.
