Low-Frequency Ultrasonic Communication for Speech Broadcasting in Public Transportation.
Kwang Myung JeonNam Kyun KimChan Woong KwakJung Min MoonHong Kook KimPublished in: INTERSPEECH (2017)
Keyphrases
- low frequency
- high frequency
- public transportation
- frequency domain
- wavelet transform
- discrete wavelet transform
- subband
- frequency band
- wavelet coefficients
- strategic planning
- speech recognition
- public transport
- original images
- electromagnetic fields
- high frequency components
- speech signal
- low and high frequency
- fusion rules
- dct coefficients
- image compression
- multiresolution
- image segmentation
- genetic algorithm
- audio visual
- benchmark problems
- simulated annealing
- search space