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icefall-asr-alimeeting-pruned-transducer-stateless7

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metadata
datasets:
  - AliMeeting
language:
  - zh
license: apache-2.0
metrics:
  - name: IHM test CER
    type: cer
    value: 11.53
  - name: SDM test CER
    type: cer
    value: 25.85
  - name: GSS test CER
    type: cer
    value: 14.22
tags:
  - k2
  - icefall

AliMeeting

This is an ASR recipe for the AliMeeting corpus. AliMeeting provides recordings from the speaker's headset microphones and an 8-channel microphone array. We pool data in the following 4 ways and train a single model on the pooled data:

(i) individual headset microphone (IHM) (ii) IHM with simulated reverb (iii) Single distant microphone (SDM) (iv) GSS-enhanced array microphones

Speed perturbation and MUSAN noise augmentation are additionally performed on the pooled data.

Performance Record

pruned_transducer_stateless7

The following are decoded using modified_beam_search:

Evaluation set eval CER test CER
IHM 9.58 11.53
SDM 23.37 25.85
MDM (GSS-enhanced) 11.82 14.22

See the recipe for details.