Search Results for author: Markus Kitza

Found 3 papers, 1 papers with code

The RWTH ASR System for TED-LIUM Release 2: Improving Hybrid HMM with SpecAugment

no code implementations2 Apr 2020 Wei Zhou, Wilfried Michel, Kazuki Irie, Markus Kitza, Ralf Schlüter, Hermann Ney

We present a complete training pipeline to build a state-of-the-art hybrid HMM-based ASR system on the 2nd release of the TED-LIUM corpus.

Data Augmentation

Cumulative Adaptation for BLSTM Acoustic Models

no code implementations14 Jun 2019 Markus Kitza, Pavel Golik, Ralf Schlüter, Hermann Ney

Further, i-vectors were used as an input to the neural network to perform instantaneous speaker and environment adaptation, providing 8\% relative improvement in word error rate on the NIST Hub5 2000 evaluation test set.

Acoustic Modelling Automatic Speech Recognition +4

RWTH ASR Systems for LibriSpeech: Hybrid vs Attention -- w/o Data Augmentation

2 code implementations8 May 2019 Christoph Lüscher, Eugen Beck, Kazuki Irie, Markus Kitza, Wilfried Michel, Albert Zeyer, Ralf Schlüter, Hermann Ney

To the best knowledge of the authors, the results obtained when training on the full LibriSpeech training set, are the best published currently, both for the hybrid DNN/HMM and the attention-based systems.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +2

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