Speech quality significantly affects the performance of speech dependent systems. Noise in background lowers clarity and intelligibility speech. The augmentation can increase its quality. We propose a single-channel improvement framework that combines particle swarm optimization (PSO), gravitational search algorithm (GSA), harmonic regeneration noise reduction (HRNR) to minimize signal intellig...

The main difference in topology of a boost bridgeamplifier and state-of-the-art class-D amplifier is in theconnection of a loudspeaker between a power supply and aswitching bridge. The boost bridge amplifier provides fourtimes higher peak power at the loudspeaker than the power,which can be achieved by a class-D amplifier from the samepower supply. Total harmonic distort...