Title
A Fixed-Point Neural Network Architecture for Speech Applications on Resource Constrained Hardware.
Abstract
Speech recognition and keyword detection are becoming increasingly popular applications for mobile systems. These applications have large memory and compute resource requirements, making their implementation on a mobile device quite challenging. In this paper, we design low cost neural network architectures for keyword detection and speech recognition. Wepresent techniques to reduce memory requirement by scaling down the precision of weight and biases without compromising on the detection/recognition performance. Experiments conducted on the Resource Management (RM) database show that for the keyword detection neural network, representing the weights by 5 bits results in a 6 fold reduction in memory compared to a floating point implementation with very little loss in performance. Similarly, for the speech recognition neural network, representing the weights by 6 bits results in a 5 fold reduction in memory while maintaining an error rate similar to a floating point implementation. Preliminary results in 40nm TSMC technology show that the networks have fairly small power consumption: 11.12mW for the keyword detection network and 51.96mW for the speech recognition network, making these designs suitable for mobile devices.
Year
DOI
Venue
2018
https://doi.org/10.1007/s11265-016-1202-x
Signal Processing Systems
Keywords
Field
DocType
Speech recognition,Keyword detection,Deep neural networks,Memory compression,Fixed-point architecture
Resource management,Computer science,Floating point,Voice activity detection,Word error rate,Parallel computing,Mobile device,Time delay neural network,Artificial intelligence,Fixed point,Artificial neural network,Machine learning
Journal
Volume
Issue
ISSN
90
5
1939-8018
Citations 
PageRank 
References 
0
0.34
15
Authors
8
Name
Order
Citations
PageRank
Mohit Shah1273.11
Sairam Arunachalam220.71
Jingcheng Wang325932.34
David Blaauw48916823.47
Dennis Sylvester55295535.53
Hun-Seok Kim629427.15
Jae-sun Seo753656.32
Chaitali Chakrabarti81978184.17