A4.1 - THE SMALLEST ELECTRET MICROPHONE WITH GOOD PERFORMANCE

A. Van Halteren, D. De Roo & L. Evers
In the field of Hearing Aids the most important parameter for a microphone is performance versus size. This is not a simple parameter like Signal to Noise ratio - versus volume, but the size is strongly connected to the overall space used in the Hearing Instrument. Especially because in most hearing aids two microphones are used, in a matched pair configuration, to create directionality. Power consumption is always a limiting factor in these kinds of...