BROWSE
Detail
Conference Paper
A Dual-Staged Context Aggregation Method towards Efficient End-to-End Speech Enhancement
Cited 4 time in 
Share 
Share
- Authors
- Kai Zhen, Mi Suk Lee, Minje Kim
- Issue Date
- 2020-05
- Citation
- International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2020, pp.366-370
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- In speech enhancement, an end-to-end deep neural network converts a noisy speech signal to a clean speech directly in the time domain without time-frequency transformation or mask estimation. However, aggregating contextual information from a high-resolution time domain signal with an affordable model complexity still remains challenging. In this paper, we propose a densely connected convolutional and recurrent network (DCCRN), a hybrid architecture, to enable dual-staged temporal context aggregation. With the dense connectivity and cross-component identical shortcut, DCCRN consistently outperforms competing convolutional baselines with an average STOI improvement of 0.23 and PESQ of 1.38 at three SNR levels. The proposed method is computationally efficient with only 1.38 million parameters. The generalizability performance on the unseen noise types is still decent considering its low complexity, although it is relatively weaker comparing to Wave-U-Net with 7.25 times more parameters.
- KSP Keywords
- Clean speech, Computationally Efficient, Contextual information, Deep neural network(DNN), End to End(E2E), High-resolution, Hybrid architecture, Noisy speech signal, Recurrent network, Resolution time, Time-Frequency Transformation