Reverberation de-noising for spherical harmonic (SH) spatial / directional room impulse responses (SRIRs / DRIRs).
The proposed method utilizes a directional (multi-slope) parameterization of the reverberation tail and replaces parts that are estimated to be dominated by noise.
More information can be found in the publication http://dx.doi.org/10.17743/jaes.2022.0017
Quickstart by having a look at the DEMO_* script.
First, clone and checkout the git repository and its submodule
git submodule update --init --recursive
After this, the submodule 'DecayFitNet' should be at commit '33a5a546'.
Please make sure to meet the dependencies/requirements of the submodule DecayFitNet.
From this room impulse response with directional energy:
To this directional EDC estimation and restoration (i.e. denoising):
Resulting in a denoised output:
