Using VSTHost in a VTPO Overview VST, Virtual Studio Technology

Using VSTHost in a VTPO
VST, Virtual Studio Technology, was originally developed by Steinberg for use in
its’ Cubase Digital Audio Workstation software. It consists of host software and
applications called plug-ins. These plug-ins can be instruments, VSTi or effects,
VST. There are thousands of VST plug-ins both free and commercially sold.
VSTHost is a free program written by Herman Seib that allows you to use any
VSTi or VST. It handles multiple audio and midi channels. VSTHost will also
record and playback the audio or midi passing through it among other utilities. It
can handle multi-channel soundcards.
This program is for Windows or Wine under Linux. It works on 32 and 64 bit
systems. ASIO audio driver is recommended for minimum latency. If you use a
built-in soundcard, install ASIO4ALL use version 2.10.
To use it with Hauptwerk, the Audio Output device under General Settings, Audio
Outputs, must be set to “Hauptwerk VST Link”. For a 2 channel setup, Device
channels 1 and 2 should be set to “01/02[L]” and “01/02[R]”. Consult the
Hauptwerk manual, the Hauptwerk Forum or the VTPO group for assistance with
multi-channel configurations.
To use VSTs with Soundfont Organs such as jOrgan, Grand Orgue, and Miditzer
please refer to the excellent pages at
Windows Installation
VSTHost is available in 32bit and 64 bit versions. While the 32 bit version can be
used with both 32 and 64 bit OSs, I recommend the 64 bit versions on 64bit OS.
The 64 bit VSTHost has a built-in bridge so it can use any VST/VSTi. Download
VSTHost . There is no installation program. Unzip the entire file. Open the
unzipped folder, right click on “vsthost.exe”. Left-click on “create shortcut”.
Copy this shortcut to your Desktop.
Initial Setup
1. Start VSTHost by clicking on the shortcut you created. Click the “File”
menu, then unclick “PlugIn Auto-Connect”. In the same menu click “Set
PlugIn Path”. Click the three dot box and navigate to the place where
you have or will have your plugins stored. Typically this is c:\Program
Files (x86)\Steinberg\VstPlugins. (note that the (x86) only exists in
Windows 7 64 bit systems.) List alternate locations on separate lines.
Click “File” then “Rescan PlugIns”.
2. Click on “Devices”, then “Wave”. Select your ASIO output port. Set the
Sample Rate to 48000 and the Buffer to 128 to get started. Use the same
sample rate as your Soundcard ASIO driver. Click OK.
4. Click “Devices”, then ASIO Channel Selection. “Load all Output Paths”
should be ticked.
5. Click on “Engine”, then “Configure”. Click the “Assign Output Channels”.
You should see all the available outputs. Make a list of the
output/channel numbers.
Loading & Connecting VSTs
Click “File”, then “Plugin”. Select the Hauptwerk VSTLink. (64 bit link with 64 bit
VST host, etc.) Repeat the process inserting the reverb plugin you want.
The above configuration includes rear surround channels. Note that you can use
different reverbs for each channel pair. You can also chain reverb effects, i.e., to
simulate chambers that feed into a large hall.
To draw the connections you can either click and drag between two blue dots, or
click the “links of chain” on the top left corner of the box.
Note that each box has a unique number that distinguishes it from another.
Clicking on the linked chains on box #2, in this case Freeverb3, displays the
above. That box number also appears in the now opened dialogue. The
dialogue box is entitled “Chain After”. Note that Freeverb3 is chained after the
Hauptwerk VST link. Make sure only one item is checked.
In the example above if you clicked the linked chains on Engine Output box #1
the two reverbs would be checked. Now you can tell VSTHost which channels to
use for each reverb. To do that, click on the small speaker icon located above
the “db” on the reverb you want to assign. Engine Output #1 corresponds to
the left main channel on my soundcard. Using the three dot box, “…” the
output from Freeverb3 was routed to the left and right channels of the sound
card. Any Source from Engine Outputs 3 and 4 was removed.
Clicking on the second instance of Freeverb (#4) in the Engine Output, then the
small speaker icon, the following dialog appears:
For rear channels note that the first two outputs have no inputs while 3 and 4
outputs are connected to the second reverb. Even though the names are the
same there are two distinctly separate instances of Freeverb Impulser in use,
each one using either a copy of the same IR file or a different one. Different
reverbs can similarly and simultaneously be used.
Notice too, that there are sliding controls for each reverb. These act as mixer
volume controls.
Multiple effects can be combined, i.e., chambers.
Sub-mixes can be created to combine multi-channel into two for separate reverb
Storing Your Settings
Once you have tinkered and found some basic settings that work, you will want
to save it. “File”, “Save Performance” then name it. The box underneath the
File, PlugIn… menu bar has the performance name. You can store dozens of
performances. VSTHost remembers and load the last setup you used.
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