Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Summary of Contents for Harrison Mixbus VBM
- Page 1 MANUAL VERSION: 1.5 DATE: 2 December 2021 NOTES: For VBM 1.2 release...
-
Page 2: Table Of Contents
MIXBUS VBM 2 December 2021 TABLE OF CONTENTS INTRODUCTION.............................6 ..............................6 REMISE OVERVIEW...............................7 ............................7 NPUT ECTION VBM C ..........................9 HANNEL TRIP 2.2.1 Name Plate............................12 2.2.2 Channel Redirect Section......................14 2.2.3 VBM Channel Strip - Signal Processing..................19 2.2.4 Program Bus Assign Buttons......................22 2.2.5 Lobby Assign Buttons........................25... - Page 3 MIXBUS VBM 2 December 2021 APPENDIX 2: INSTALLATION AND LICENSING................65 ...........................65 ETTING TARTED 7.1.1 Installing The Software.........................65 7.1.2 Checking Licensing Status......................66...
- Page 4 MIXBUS VBM 2 December 2021 LIST OF FIGURES 1: VBM CONTROL PANEL........................6 IGURE 2: VBM INPUT SECTION.........................8 IGURE 3: VBM STEREO CHANNEL STRIP......................10 IGURE 4: VBM MONO CHANNEL STRIP......................11 IGURE 5: CHANNEL NAME PLATE FUNCTIONS..................12 IGURE 6: CHANNEL COMMENT BOX......................12 IGURE 7: PLUGIN PIN CONFIGURATION WINDOW..................13...
- Page 5 MIXBUS VBM 2 December 2021 47: ACE IFB - ADD SIDECHAIN INPUT....................63 IGURE 48: ACE IFB SIDECHAIN INPUT CONNECTION................64 IGURE 49: ACCESSING VERSION AND LICENSING INFORMATION............66 IGURE 50: ABOUT WINDOW..........................67 IGURE...
-
Page 6: Introduction
Mixbus VBM runs on MAC, Linux and Windows platforms. 1.1 Premise Mixbus VBM is a computer based digital mixer for live broadcast mixing applications. It is tailored to applications that require multiple mix minus feeds and can provide multiple program outputs. -
Page 7: Overview
2.1 Input Section Figure 2 shows the input section of Mixbus VBM. The input section is comprised of several channel strips, the number of which is limited only by the amount of your computing power. Channel strips are added by creating Inputs or Contributors. -
Page 8: Figure 2: Vbm Input Section
MIXBUS VBM 2 December 2021 Figure 2 : VBM INPUT SECTION... -
Page 9: Vbm Channel Strip
MIXBUS VBM 2 December 2021 2.2 VBM Channel Strip Figure 3 shows a VBM channel strip. When a channel strip is created it can be chosen to be either stereo or mono. The channel strip in Figure 3 is a stereo channel strip. The mono channel... -
Page 10: Figure 3: Vbm Stereo Channel Strip
MIXBUS VBM 2 December 2021 Figure 3 : VBM STEREO CHANNEL STRIP... -
Page 11: Figure 4: Vbm Mono Channel Strip
MIXBUS VBM 2 December 2021 Figure 4 : VBM MONO CHANNEL STRIP... -
Page 12: Name Plate
MIXBUS VBM 2 December 2021 2.2.1 Name Plate The name plate has the name of the channel. Right OR left clicking on the name plate provides for renaming, changing colours and other controls. Figure 5 : CHANNEL NAME PLATE FUNCTIONS The "Comments"... -
Page 13: Figure 7: Plugin Pin Configuration Window
MIXBUS VBM 2 December 2021 "Pin Connections" brings up a window where the connections in and out of any plugins which are present can be seen and modified. An example of this window is shown in Figure 7 permits custom connections of the in and out ports to the plugins to be made, addition and connection of sidechain inputs, MIDI Controls (where available) and so on. -
Page 14: Channel Redirect Section
MIXBUS VBM 2 December 2021 "Protect Against Denormals" has to do with how computers process very small floating-point numbers. In normal operation, this mode should be turned off. If a 3rd party plugin is causing unusually high CPU load, checking the box may reduce the load. -
Page 15: Figure 8: Channel Redirect Section
MIXBUS VBM 2 December 2021 Figure 8 : CHANNEL REDIRECT SECTION Selecting the Plugin Selector allows insertion of a wide variety of built-in and user-installed 3rd party plugin processors. -
Page 16: Figure 9: Opening The Plugin Selector
filtering by type, for example effects, instruments or utilities filtering by format, for example VST3, LV2, etc is provided by selecting the pulldown filtering by creator, such as the Ardour Community, Harrison, etc by selecting the pulldown The Search facility provides for seaching a plugin by: ... -
Page 17: Figure 10: Plugin Selector
MIXBUS VBM 2 December 2021 Figure 10 : PLUGIN SELECTOR Selecting "New External Send" will bring up the routing tool. Using this tool the channel signal can be routed anywhere, to a bus or to an external output. Figure 11 shows the routing tool. -
Page 18: Figure 11: Channel External Send
MIXBUS VBM 2 December 2021 Figure 11 : CHANNEL EXTERNAL SEND... -
Page 19: Vbm Channel Strip - Signal Processing
MIXBUS VBM 2 December 2021 2.2.3 VBM Channel Strip - Signal Processing Each channel strip has a comprehensive set of signal processing tools. These are: 3-band EQ with highpass filter leveler de-esser de-noiser Single-clicking on the "VBM Strip" button above the program bus assign buttons opens the signal processing tools on all channel strips and output buses. -
Page 20: Figure 12: Signal Processing Access
MIXBUS VBM 2 December 2021 Figure 12 : SIGNAL PROCESSING ACCESS... - Page 21 MIXBUS VBM 2 December 2021 Figure 13 shows details of the channel strip signal processing section. Features of the processing section are as follows. Input gain trim: the slider on the right sets the input gain to the processing section, it has a range of –20 to +30 dB of gain.
-
Page 22: Program Bus Assign Buttons
MIXBUS VBM 2 December 2021 Figure 13 : CHANNEL STRIP PROCESSING 2.2.4 Program Bus Assign Buttons The program bus assign buttons do as their name implies, they assign the post-fader channel output to one or more of the 4 program buses. There is an option for additional dedicated gain trim and pan knob from each channel at the top of each bus strip, see Section 2.4.1.5. -
Page 23: Figure 14: Program Bus Assign Buttons
MIXBUS VBM 2 December 2021 Figure 14 : PROGRAM BUS ASSIGN BUTTONS... -
Page 24: Figure 15: Program Bus Buttons With Fader Open
MIXBUS VBM 2 December 2021 Figure 15 : PROGRAM BUS BUTTONS WITH FADER OPEN Program bus sends are interlinked with MixMinus bus sends. When a program bus is assigned, sends to the MixMinus buses are also enabled. When the fader is up, signal also goes to all MixMinus buses of channels assigned to the same program bus EXCEPT the one corresponding to this input strip (this is the "minus"... -
Page 25: Lobby Assign Buttons
MIXBUS VBM 2 December 2021 2.2.5 Lobby Assign Buttons Four "Lobby" assign buttons are provided to facilitate *off-air* conversation between principals. They are mutually exclusive, only one Lobby may be selected at a time. Lobby selections operate differently for Contributor channels than with regular input channels. -
Page 26: Contributor Operation
MIXBUS VBM 2 December 2021 Figure 17 : LOBBY-PROGRAM ACTIVENESS WITH FADER UP 2.2.5.1 Contributor Operation Normally, when the fader is up a Contributor channel strip's audio only goes to MixMinus buses corresponding to channels assigned to the same program bus. -
Page 27: Pan/Balance Control
MIXBUS VBM 2 December 2021 2.2.6 Pan/Balance Control As mentioned at the beginning of Section mono input channels have a Pan control and stereo input channels have a Balance control. The pan/balance control setting from the channel strip is common across all Program and MixMinus bus destinations. However the pan/balance at any particular bus can be unlinked in the Bus Sends section of Program or MixMinus buses. -
Page 28: Meter
MIXBUS VBM 2 December 2021 2.2.11 Meter The meter reads the signal level directly in dBFS. The metering point in the signal flow is selectable using the selector button at the bottom of the meter, explained in the next section. If the channel strip is mono (such as for a single microphone) there will be only one bargraph meter. -
Page 29: Group Assign Button
MIXBUS VBM 2 December 2021 Figure 19 : CUSTOM METERING POINT In the figure, the custom metering point is between the first two plugins before the fader. As with any plugin (or the fader itself), its position in the signal flow can be changed simply by dragging it up or down. -
Page 30: Vca Assign Button
MIXBUS VBM 2 December 2021 When a new Group is created, a menu is presented allowing selection of which functions are to be controlled together, as shown in Figure Figure 21 : CONTROL GROUPING OPTIONS Click "New" to create a new Group with the checked control options. -
Page 31: Figure 22: Vca S
MIXBUS VBM 2 December 2021 Figure 22 : VCAs Clicking on the VCA assign button will allow additions or changes to VCA assignments, as shown in Figure 23. VCA assignments or deassignments are made by clicking in the check boxes. The "Unassign All" option simultaneously disconnects the channel or bus master from all VCA masters it is assigned to, and does not appear when the channel is not assigned to any VCA master. -
Page 32: Vca Masters
MIXBUS VBM 2 December 2021 Figure 23 : CHANNEL ASSIGNMENT TO VCA MASTER 2.3 VCA Masters Figure 24 shows a VCA master. VCA masters are created by clicking on the "Add VCA" button at the top of the input section, as was shown in Figure 2. -
Page 33: Figure 24: Vca Master
MIXBUS VBM 2 December 2021 Figure 24 : VCA MASTER... -
Page 34: Figure 25: Vca Master Name Plate
MIXBUS VBM 2 December 2021 The Name Plate provides some options for the VCA master, such as renaming or removing assignments from it, as shown in Figure Figure 25 : VCA MASTER NAME PLATE Channels or bus masters may be assigned to a VCA master by selecting the channel or bus (clicking on it) and selecting "Assign Selected Channels". -
Page 35: Buses
MIXBUS VBM 2 December 2021 Figure 26 : MASTER MUTE FROM VCA MASTER 2.4 Buses Figure 27 shows the VBM bus masters. There are two types of buses: Program buses MixMinus buses There are 4 Program buses available. The number of MixMinus buses is variable,... -
Page 36: Figure 27: Vbm Bus Masters
MIXBUS VBM 2 December 2021 Figure 27 : VBM BUS MASTERS... -
Page 37: Program Buses
MIXBUS VBM 2 December 2021 2.4.1 Program Buses A Program bus master is shown in Figure 28. There are 4 basic sections to the Program bus, the Redirect/Plugins section, the signal processing section (accessed by the "VBM Strip" button), and the fader-meter section at the bottom. The 4th section, the Sends section, is not shown by... -
Page 38: Figure 28: Program Bus Master
MIXBUS VBM 2 December 2021 Figure 28 : PROGRAM BUS MASTER... -
Page 39: Program Bus Nameplate
MIXBUS VBM 2 December 2021 2.4.1.1 Program Bus Nameplate The Program Bus nameplate is shown in Figure 29 and may be selected by either left or right clicking. The available options have the identical functions as for an Input strip, as presented in Section 2.2.1. -
Page 40: Redirect Section
MIXBUS VBM 2 December 2021 2.4.1.2 Redirect Section The Redirect section provides for inserting processing plugins and additional sends out of the bus strip. The functioning of this section is identical to that in the Input channel strip, as covered in Section 2.2.2. -
Page 41: Lower Section
MIXBUS VBM 2 December 2021 2.4.1.4 Lower Section The lower section of the Program bus strip is identical to that of the Channel strip, and all indicators and controls operate identically to those on the Input channel strip. These are: ... -
Page 42: Figure 31: Program Bus Master Showing Sends Section
MIXBUS VBM 2 December 2021 Figure 31 : PROGRAM BUS MASTER SHOWING SENDS SECTION... -
Page 43: Figure 32: Program Bus Sends Section
MIXBUS VBM 2 December 2021 The Sends section is shown in detail in Figure 32. This section has the controls and indicators related to audio sends from the channel strips. the Slider Bar will appear when the number of Input channels exceeds the available display height. -
Page 44: Figure 33: Channel Sends Controls
MIXBUS VBM 2 December 2021 Figure 33 : CHANNEL SENDS CONTROLS The Pan/Balance knob can operate in 2 different modes. In Figure 34 note the position of the panner on input "GVC F" and on the "GVC F" send on program bus P2. The pan/balance knob on P2 is gray in colour indicating it is linked to the panner on "GVC F", indicating 71% Left and 29%... -
Page 45: Figure 35: Bus Pans Unlinked
MIXBUS VBM 2 December 2021 Right clicking on the pan/balance knob on the "GVC F" send on program bus P2 will change its colour to red, indicating the panning of this input is now uncoupled from the panner on the channel strip. -
Page 46: Mixminus Buses
MIXBUS VBM 2 December 2021 2.4.2 MixMinus Buses A MixMinus bus master is shown in Figure 36. As with the Program bus master it has 4 basic sections, the Sends section at the top, the Redirect/Plugins section, the signal processing section, and the fader-meter section at the bottom. -
Page 47: Figure 36: Mix Minus Bus Master
MIXBUS VBM 2 December 2021 Figure 36 : MIX MINUS BUS MASTER... -
Page 48: Sends Section
MIXBUS VBM 2 December 2021 2.4.2.1 Sends Section The Sends section is identical to the Sends section on the Program buses. The only differences are in the operations of the bus under certain bus assignment conditions as follows: the send from the corresponding Contributor channel is NOT PRESENT, to prevent a feedback loop. -
Page 49: Redirect Section
MIXBUS VBM 2 December 2021 2.4.2.3 Redirect Section The Redirect section on the MixMinus bus operates identically to the corresponding sections on the Input channel and the Program buses, and provides for inserting processing plugins and additional sends out of the bus strip. The functioning of this section is identical to that in the Input channel strip, as covered in Section 2.2.2. -
Page 50: Monitor Strip
MIXBUS VBM 2 December 2021 Review Sections 2.2.7 through 2.2.14 for details on the operation of this section of the MixMinus bus strip. 2.5 Monitor Strip The VBM Monitor strip is shown in Figure 38. The monitor strip typically feeds the broadcast... -
Page 51: Figure 38: Vbm Monitor Strip
MIXBUS VBM 2 December 2021 Figure 38 : VBM MONITOR STRIP... - Page 52 MIXBUS VBM 2 December 2021 Indicators and controls are as follows: Monitor Selector – this selects where the Monitor Strip is monitoring from. Monitoring point can be set to anywhere in the VBM, as shown in Figure Solo Indicator/button – this button flashes whenever there is an active solo as shown Figure 40.
-
Page 53: Figure 39: Monitor Selector
MIXBUS VBM 2 December 2021 Figure 39 : MONITOR SELECTOR... -
Page 54: Figure 40: Monitor Strip In Solo
MIXBUS VBM 2 December 2021 Figure 40 : MONITOR STRIP IN SOLO... -
Page 55: Routing Tool
MIXBUS VBM 2 December 2021 3.0 Routing Tool The Routing Tool manages all of the audio connections hidden beneath the control window of VBM. It is accessed from selecting "Audio Connections" from the "Window" pulldown as shown in Figure Figure 41 : ROUTING TOOL ACCESS... -
Page 56: Figure 42: Routing Tool
MIXBUS VBM 2 December 2021 Figure 42 : ROUTING TOOL... -
Page 57: Figure 43: Showing A Program Bus To Program Bus Connection
MIXBUS VBM 2 December 2021 Figure 43 : SHOWING A PROGRAM BUS TO PROGRAM BUS CONNECTION... -
Page 58: Figure 44: Monitor Strip Connection To External Interface
MIXBUS VBM 2 December 2021 Figure 44 : MONITOR STRIP CONNECTION TO EXTERNAL INTERFACE... -
Page 59: Summary
MIXBUS VBM 2 December 2021 Summary This document has presented an overview of the features of the Harrison Mixbus VBM virtual broadcast mixer. This document will be refined and updated as additional features and capabilities are added to Mixbus VBM. -
Page 60: References
MIXBUS VBM 2 December 2021 5.0 References 1. Harrison Mixbus 32C v7 online manual. 2. Harrison Mixbus 32C v6 online manual. -
Page 61: Appendix 1: Ace Ifb Plugin
MIXBUS VBM 2 December 2021 6.0 Appendix 1: ACE IFB Plugin 6.1 Description The ACE IFB plugin is automatically inserted on all MixMinus buses when they are created. This plugin is the mechanism to provide talkback audio to the contributor. The plugin itself is a 4in x 2out mixer/ducker. -
Page 62: Figure 45: Ace Ifb Plugin Control Panel
MIXBUS VBM 2 December 2021 Figure 45 : ACE IFB PLUGIN CONTROL PANEL Figure 46 : ACE IFB PIN CONNECTIONS WINDOW... -
Page 63: Figure 47: Ace Ifb - Add Sidechain Input
MIXBUS VBM 2 December 2021 Figure 47 : ACE IFB - ADD SIDECHAIN INPUT The actual sidechain connection is made by simply clicking on the sidechain source arrow on the right, and dragging the connection to one of the sidechain inputs. -
Page 64: Figure 48: Ace Ifb Sidechain Input Connection
MIXBUS VBM 2 December 2021 Figure 48 : ACE IFB SIDECHAIN INPUT CONNECTION... - Page 65 MIXBUS VBM 2 December 2021 7.0 Appendix 2: Installation and Licensing Mixbus VBM is a licensed product. In order for VBM to operate the license file must be resident in your computer's HOME folder. 7.1 Getting Started Follow these steps to install the VBM program and its license file on your computer.
-
Page 66: Figure 49: Accessing Version And Licensing Information
7.1.2 Checking Licensing Status Information about the Mixbus VBM version, licensing status and license owner can be viewed from the "Help -> About" pulldown at the top of the Mixbus VBM window, as shown in Figure Figure 49 : ACCESSING VERSION AND LICENSING INFORMATION... -
Page 67: Figure 50: About Window
MIXBUS VBM 2 December 2021 Figure 50 : ABOUT WINDOW ************************************** END OF VBM USER MANUAL **************************************...
Need help?
Do you have a question about the Mixbus VBM and is the answer not in the manual?
Questions and answers