Residual Noise Control for Coherence Based Dual Microphone Speech Enhancement
- Resource Type
- Conference
- Authors
- Zamani, Behzad; Rahmani, Mohsen; Akbari, Ahmad
- Source
- 2008 International Conference on Computer and Electrical Engineering Computer and Electrical Engineering, 2008. ICCEE 2008. International Conference on. :601-605 Dec, 2008
- Subject
- Computing and Processing
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Microphones
Speech enhancement
Noise reduction
Working environment noise
Filters
Costs
Distortion
Frequency
Background noise
Noise cancellation
Residual Noise Control
Dual Microphone Speech Enhancement
Cross Power Spectral Subtraction
Priori SNR
- Language
Among various enhancement methods, dual microphone methods are utilized for their low cost implementation and use of spatial noise reduction. In this paper, we present a double microphone noise reduction method for nearby microphones. Our method is based on a modified coherence based filter which reduces correlated noises using cross spectral subtraction. In our proposed method the amount of noise reduction is controlled in order to achieve an acceptable compromise between residual noise and speech distortion. The performance of the enhancement technique is carried out using PESQ measure. Obtained results confirm the ability of the proposed approach to reduce distortion of signal.