README.md

Ambisonics in KMH studios and Lilla salen

About the compiled decoders

Is changed

All decoders use ACN channel order (see Component order) and SN3D normalization (see Normalisation) and are dual-band, max-rE/rV.

A guide to the file names

For efficiency file names use the following format

1. The space (KMHLS_AE)
2. Speaker configuration (FullSetup)
3. Order (7H7P)
4. Redundant speaker configuration (full)
5. Type of decoder according to:

• (1) AllRad mixed order (4/3)

  Mixed order ambisonics decoder.

• (2) Decoding with the pseudoinverse

  Pinv decoders in 1st, 3rd order.

• (4) Same as (2) but with a blend coefficient for inversion variants (energy limited/mode matching 50%)

  1st and 3rd and 6th order.

• (5) Spherical slepian decoders

  SSF decoders in 1st, 3rd and 6th order (6th order is here only as VST, but I can compile the other formats if needed.)

• (6) All-round decoders

  AllRAD decoders in 1st, 3rd, 5th and 7th order.

Formats

1. VST
2. Max/MSP (as package with help file to be put in ~/Documents/Max 7/Packages)
3. Pd (bang left most input to get parameter names)
4. SuperCollider (put all .sc and .scx in ~/Library/Application Support/SuperCollider/Extensions (supernova is of course optional)
5. Ambix config file

Speakers

In Klangkupolen the channel order from the mixer is channel 1-29 for the regular dome. The lower ring starts at channel 33-48 and the subs are at 49-52. This is the reason that in the decoder the names for the sixteen floor speakers start at 33.

Comments

• (1) AllRad mixed order (4/3)

  Mixed order ambisonics decoder

• (2) Decoding with the pseudoinverse

  Pinv decoders in 1st and 3rd.

• (4) Same as (2) but with a blend coefficient for inversion variants (energy limited/mode matching 50%)

  Up to 3rd.

• (5) Spherical slepian decoders

  SSF decoders in 1st, 3rd and 5th order (up to 6th).

• (6) All-round decoders

  AllRAD decoders in 1st, 3rd, 5th and 7th order.