The NEC1 is a dream come true. Finally there is a cost effective, reliable, and accurate means of noise suppression and echo cancellation for intercoms and audio systems.

The NEC1 is an adaptive module which constantly monitors and compares the audio signals passing though it. Using neurochip technology, it analyses the audio signal for speech patterns and using algorithmic techniques removes the background noise which in not part of the speech pattern. This neurochip based module is so fast the signal is delayed by only 20ms during its processing.

The NEC1 also includes echo cancellation. The incoming signal, e.g. in an intercom system passes through the NEC1, and then on to the loudspeaker. The NEC1 system removes this signal from the intercom microphone so there is no echo or feedback.

A stand alone module in either one or two channels.

Rack Mounting or Freestanding Versions.

Fixed intercom systems.

Custom systems developed by KEL.

Technical Specifications (module only)...

Product Name: NEC1

System Clock: 12.3MHz/16.9MHz

Sampling Rate: 8 KHz/11.025 KHz

Echo Delay Time: Up To 125 ms/90 ms

Signal Delay: 32 ms/24 ms

Resolution: 16bit

Noise Reduction: Up To 20dB

Echo Cancelling: Up To 24dB

Power Consumption: 0.2w

Power Supply: 3.3v or 12v

Temperature Rage: -40˚ Up To 85˚

Interfaces: 1x Line Input

1x Line Output

2x Serial Port (I²S)