ICST AmbiDecoder 2.3

General

One plug-in per Ambisonics-Order.

[AmbiDecoder_o1_64ch.vst3 -> AmbiDecoder_o7_64ch]

Input

The number of input signals equals to the number of ambisonics channels of the order of the plug-in.

Requirements:

• ACN channel order Ambisonic Channels
• SN3D normalization

Note: The following Coordinate system of type Navigation (clockwise angle) is assumed. The AmbiX cartesian coordinate system (Right = +X, Front = +Y, Top = +Z).

Output

• The number of processed output channels corresponds to the number of defined speakers in the plug-in.
• A maximum of 64 channels is supported.

Radar Interaction

see Radar Interaction

AmbiDecoder Viewing-Layers

• Edit mode: Shows the speaker placements.
• Standard mode: Shows all movements and placements from all connected AmbiEncoder-Plugin.

AmbiDecoder Parameter-Editor

Speakers

• Edit mode: Toggle between speaker edit mode and source display mode
• Presets
  • drop down list: choose existing preset
  • button save: store current settings as preset
  • button manage: import/export/reset/delete presets
  • button manage filters: import/export/reset/delete speaker filter presets
• Speaker list
  • Individual speaker coordinates [XYZ] and [AED]
  • Distance metered from the center of the room/hall [meters]
  • Delay [ms]: total sound delay from speaker to center
  • Delay compensation [ms]: Automatic Delay compensation for the speaker position in milliseconds
  • Color: color of the speaker in the radar view
  • Mute: individual mute for each speaker
  • Gain [dB]: An individual gain for each speaker can be applied.
  • Speaker audio tester: White noise generator for each individual channels
  • Filter: shows if any filter is active, a click on the check box opens the detailled filter setting dialog
  • Test all speakers sends a white noise signal [clockwise] to the speakers.
  • CSV: import/export speaker settings list from/into a CSV file.
  • Scaling: allows to proportionally stretch/shrink the existing speaker placements in all 3 dimensions (X/Y/Z)
• Filter (can be individually configured for each speaker)
  • Types:
    • Low pass
    • High Pass
    • Band Pass
    • Low Pass 1st order
    • High Pass 1st order
    • Notch
    • Low Shelf
    • High Shelf
    • Peak
  • Frequency [Hz]: Cut-off/Center-Frequency for the filter
  • Q-Value: used for all filters, except 1st order low/high pass
  • Gain factor: used for notch, peak, low/high shelf filters
  • Graph: The filter curve is precalculated and displayed in the graph
  • Presets: Settings can be loaded from presets, or saved to a new preset

Ambisonics

• Channel weights: The following weightings can be selected:
  • In-phase: The weighting of ambisonics channels is based on the order of the channels. calculate in phase
  • Max-rE: same with slightly different algorithm
  • Basic: Sets all weights to 1
  • Manual: The weights of each ambisonics-dimension can be individually changed using the sliders

OSC

• Enable/Disable OSC receiving
• OSC-Port: Defines the OSC-Port for receiving OSC messages from AmbiEncoders. (default: 50000)
• Timeout [ms]: Timeout interval between the OSC-messages (default: 1000 ms). Sources will disappear if no updated position within this time frame is received.