PART II - AUDIOMULCH CONNECTIONS

The WIGWARE AMBISONICS DECODER, in this illustration, is placed in the VST folder within Audiomulch along with the chosen Ambisonic B-Format panners. This illustration will demonstrate a basic 5.1 conversion from mono feed material. The decoder is inserted as a VST contraption within the patcher window of Audiomulch.

In the following examples both the first-order and the second-order versions of the decoder are used with the Layout parameter set to ITU and ITU 1 2o respectively; The second-order version incorporates a central output channel, the first-order version does not. The LFE channel will be derived from the b-format omnidirectional encoder channel (W) in a later illustration.

AudiomulchBasicOutputITU.JPG


In the patcher window the inputs and outputs are expressed when the mouse is rolled over. The inputs conform to the b-format W, X, Y, and Z labels (the tool tips show up in Audiomulch by hovering the mouse over an input or an output port):

AudiomulchBasicInput01.JPGAudiomulchBasicInput02.JPGAudiomulchBasicInput03.JPGAudiomulchBasicInput04.JPG
The output labels are arranged as follows:

AudiomulchBasicOutput01.JPGAudiomulchBasicOutput02.JPGAudiomulchBasicOutput03.JPGAudiomulchBasicOutput04.JPGAudiomulchBasicOutput05.JPG
A fundamental connection with a mono audio feed (in this case a WAV file loop) may be achieved as follows:

AudiomulchBasicInputConnect.JPG
AudiomulchBasicInputConnect02.JPG

The outputs at the bottom of the image have been mapped to the physical outputs EDIROL UA-101. The following example uses the 2nd order panner and decoder with the addition of a centre channel:

Basic00.JPG
Basic02.JPG

The bass can be managed, by using a LP filter on the W (omni channel) to feed the LFE output as follows:


LFE2.JPG

BassManage.JPG

Note that the default names for the Sound Out, Aux Out 1 and Aux Out 2 contraptions have been renamed to show the channels they represent.

Multiple Panner contraptions are required to manage multiple inputs:

MultiInput.JPG

Note: the multiple W channel feeds to the LFE channel.

A bus reverb effect can be patched in as follows:

Reverb.JPG

The patcher can be configured to accommodate multiple output senarios by using a router matrix:

MultiOutput01.JPG MultiOutput02.JPG


MultiOutput.JPG
PART III - REAROUTE