VMIX and VMODE - FAQ and more details

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Bruce Wilkinson
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Joined: Wed Jun 06, 2007 6:17 pm

VMIX and VMODE - FAQ and more details

Post by Bruce Wilkinson »

VMIX Migration Instructions

Starting with Element 2.x and Engine 2.4.8w3, it is possible (and usually desirable) to have all VMIX control and configuration reside within the Engine. The Element no longer plays any role in VMIX. Depending on the existing configuration, here are the instructions for migration from the old scheme with SPLit VMIX control (Element and Engine) to the new Engine-only scheme. There are three cases.

Case 1. A user is already using VMIX with control via Element.

It is possible to continue doing so. For that mode it is only necessary to enable the VMIX control from Element on the Engine ID page. Now a reboot of Element is required to initiate transfer of the VMIX settings from Element to engine. After that all will continue working as it was before.

Case 2. A user is utilizing VMIX for the 1st time - it has not been used in the legacy split Element/Engine configuration..

Set the control from Element disabled on the Engine ID page, and enter all settings via the engine VMIX web page.

Case 3. A user has started using VMIX with control via Element, and wants to now migrate to the engine local control.

It is possible to automatically transfer all the existing settings from Element to engine. Once you have documented your existing VMIX settings (just in case), it can be done by means of the following sequence of steps:
  • 1. Set the control from Element (enabled on the Engine ID page)
    2. Make sure Element has a working connection to engine, and you have the wanted VMIX settings in Element
    3. Reboot Element, while engine continues to operate. At restart, the Element will set all VMIX operative controls in the engine to the state as saved in Element.
    4. Press button "Save V-Mixer settings to config" on the Engine ID page. Now all the operative settings will be saved in engine's non-volatile config data.
    5. Set the control from Element disabled on the Engine ID page and continue working from the engine locally
    6. Check the new VMIX settings to make sure they all correspond to the documentation made before starting this process
NOTE: Pathfinder Stacking Events that control any VMIX will have to be "re-pointed" at the Engine instead of the Element since after this migration, the Element no longer controls VMIX. Pathfinder Server 4.19 or newer is required for support of this new VMIX scheme.


VMODE Combine Option - more details

Details of how the "combine" feature works:
- All V-Mode modules are grouped in pairs: 1-2, 3-4, 5-6, 7-8
- All combine options use the two inputs of the corresponding pair, and they never work across two pairs.
- You can set each of the modules of a pair to a different combine option, but the possible output content choices are always the same for these two, as they are determined by the two input connections.

The most typical use was expected to be taking L from the first input of a pair and L from the second input of a pair, and combining them into a dual-mono stream. You can use any one of the two, or the both outputs of the pair to generate the combined stream, or you can have different contents in the two outputs as well - say L,L in the first and R,R in the second output.

Technically, it looks like this (for stereo operation):

If In1 and In2 are the first and the second inputs of the pair:
Combine Left,Left: In1:L --> Out:L, In2:L --> Out:R
Combine Left,Right: In1:L --> Out:L, In2:R --> Out:R
Combine Right,Left: In1:R --> Out:L, In2:L --> Out:R
Combine Right,Right: In1:R --> Out:L, In2:R --> Out:R

Examples:

V-Mode[5] = "Combine Left, Left" will result in:
- Take L from the first input of the pair - in this example it will actually be input of V-Mode[5]
- Take L from the second input of the pair - in this example it will actually be input of V-Mode[6]
- Combine them into the output of V-Mode[5]

V-Mode[6] = "Combine Left, Left" will result in:
- Take L from the first input of the pair - in this example it will actually be input of V-Mode[5]
- Take L from the second input of the pair - in this example it will actually be input of V-Mode[6]
- Combine them into the output of V-Mode[6]

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