Cooling mechanism for an audio speaker

Cordless digital audio headphone

Core cap for loudspeaker

Core cap for loudspeaker

Correcting apparatus of sound signal distortion by way of audio

Correction circuit and method for improving the transient behavi

Correction circuit and method for improving the transient behavi

Correction control circuit for AM stereophonic receivers

Correlated active attenuation system with error and correction s

Cosmetically disguised hearing aid

Coupled dual cone velocity driver speaker

Coupling structure of signal converting apparatus

Courtesy announcement system and method of using

Cover device for hearing aids

Cover for behind-the-ear type hearing aids and methods of making

Creating digital signal processing (DSP) filters to improve...

Cross fader for editing audio signals

Cross-over frequency selection and optimization of response...

Crossover network

Crossover system