NEW MICROPHONE TEST SOFTWARE
This TDS based software was developed to test microphone or capsule prototypes under development and also to test production microphones to see whether they meet tolerances for sensitivity, frequency response, and off-axis attenuation. "Mictest" gives Manufacturers and consultants the tools to define and implement standards in an ordinary room without the cost of a conventional anechoic chamber, or costly vibration isolated rooms.

In addition to the traditional TDS measurements. the program has added many of the functions previously only available in Speaker Test, including customized envelopes for Pass/Fail production testing. Up to 3 separate envelopes are available to grade microphones based on the microphone response. For production test you create and save the production tolerances (envelopes) for a particular models frequency response, sensitivity, off axis attenuation and set up the production test sequence.

In the Test Sequence (Measurement Sequence) the computer will load frequency-response and sensitivity envelopes, run a TDS sweep, and show a prompt such as PASS, FAIL, or other user defined prompts.

The New microphone test software for the TEF has a cost of $1200 dollars. Given that a traditional testing room can easily cost $50,000 or more, and that the pass fail program can be operated by production staff, the system is highly cost effective.

Minimum requirements for this program:
*IBM compatible PC with MS-DOS 6.0 or higher
*486 processor with a math coprocessor
*8 MB memory
*hard drive
*1.44 MB floppy drive
*VGA monitor
*mouse
*TEF-HI card

Time Delay Spectrometry is a valid new way of testing microphones with several advantages over anechoic-chamber methods. TDS testing has been used successfully for 14 years by a microphone manufacturer for prototype and production testing.