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low reverb normal reverb closer spaced low reverb closely spaced normal reverb overlapping critical distances

Setup

For this example, we have a 3x4x3 m room. The reverberation time is 0.3sec. We also have a version of the same room with more reverberant walls in the fourth example Room

Mod-MFCC Based Clusters

CLUSTER 1
CLUSTER 2
BACKGROUND CLUSTER
Mod-MFCC-based Clusters image
Mod-MFCC-based Clusters image
Mod-MFCC-based Clusters image
cluster reference microphone masked reference signal DSB signal
1


2


Speaker Embedding Clusters

CLUSTER 1
CLUSTER 2
BACKGROUND CLUSTER
SpVer Clusters image
SpVer Clusters image
SpVer Clusters image
cluster reference microphone masked reference signal DSB signal
1


2


Discussion

Here both Mod-MFCC based features and the speaker embeding features give good cluster allocations. Note however that the speaker embedding features do result in a bigger cluster for source 1.