Patient controlled master hearing aid

Pattern matching apparatus

Personal hearing evaluator

Phase polarity test instrument and method

Pitch frequency generation system in a speech synthesis system

POLARITY DETERMINING CIRCUIT FOR LOUDSPEAKERS, AN AUDIO...

Probe microphone

Process for controlling a programmable or program-controlled hea

Process for the visualization of hearing ability

Processing device for speech synthesis by addition overlapping o

Processing signals representative of sound based on the...

Programmable calculator with verbal indications of stored progra

Programmable interface for fitting hearing devices

Programmable interface for fitting hearing devices

Programmable sound circuit for electronic games

Programming device for hearing aids and/or hearing aid component

Providing audio-guided deployment of data processing systems