1 Version
V2.1
2 Functions
- Receives Spherical Harmonic Decomposition Coefficients, Transform Speech, Audio Scene Geometry, and Source Model KB info.
- Eliminates background noise and reverberation which reduce the audio quality, acting as a Passthrough AIM if environmental conditions do not substantially add ambient noise to the desired speech.
- Produces Denoised Transform Speech
3 Reference Model

4 Input/Output Data
| Input data | Semantics |
| Spherical Harmonics Decomposition Coefficients | Result of the transformation of Transform Multichannel Audio into the spherical frequency domain. |
| Transform Audio | |
| Audio Scene Geometry | |
| Source Model KB info | Discrete-time and discrete-valued simple acoustic source models used in source separation. |
| Output data | Semantics |
| Enhanced Transform Speech | Transform Speech whose noise level has been reduced. |
5 SubAIMs
No SubAIMs.
6 JSON Metadata
https://schemas.mpai.community/CAE/V2.1/AIMs/NoiseCancellationModule.json