Error-Diffusion Based Speech Feature Quantization for Small-Footprint Keyword Spotting.
Mengjie LuoDingyi WangXiaoqin WangShushan QiaoYumei ZhouPublished in: IEEE Signal Process. Lett. (2022)
Keyphrases
- keyword spotting
- error diffusion
- quantization error
- speech recognition
- speech processing
- gray scale
- image quality
- hidden markov models
- quantization noise
- blue noise
- automatic speech recognition
- printed documents
- speech signal
- gray level
- human visual system
- inverse halftoning
- signal processing
- natural language processing
- color quantization
- halftone images
- low level
- feature vectors
- handwritten documents