| class CavernizeUpmixer | Creates height information for ground sources with the Cavernize filter. |
| class DisassemblerUpmixer | Uses SpectralDisassemblers to create a better quality upmix than matrixing. |
| class NearestUpmixer | Upmixes channels with interpolated positions between sources. |
| class PairBasedUpmixer | An Upmixer that recreates intermediate points between pairs of input sources. |
| class Remapper | Convert any standard multichannel audio stream to the channel layout set for Cavern. |
| class SurroundUpmixer | Creates 5.1 or 7.1 mixes from any legacy stream by matrix upmixing. Keeps any additional channels. |
| class Upmixer | Creates new, intermediate sources of an existing channel-based render. |