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Clear communication for Icom radio users

Clear communication for Icom radio users

Digital signal processing noise cancellation specialist bhi have launched a noise cancellation module for the Icom range of commercial radios.

The product, a tiny plug-in module, can be installed without complicated programming or soldering in a variety of Icom handheld radios, mobiles and repeaters – nine series of products in all. A 28-page fitting guide, produced in collaboration with Icom, covers all these models.

The modules can be used to improve the intelligibility of speech communications in a variety of noisy environments including construction sites, motorsport, airports, pubs and clubs, factories and dockyards.

If an Icom radio fitted with the module is used at the receiving end, the noise is removed and the user can hear clearly what is being said.

The module uses an innovative process of noise reduction and works by splitting the received audio into sub-bands. Within each sub-band, it works out whether the signal has speech or noise characteristics. If the signal has noise characteristics, the noise portion is removed from this sub-band, depending on the filter level selected. If no noise is identified, the speech passes through unchanged. The system is fully adaptive and adjusts itself continuously to changing conditions.

For more details about this product go to http://www.bhinstrumentation.co.uk/html/nntdsp_icom_module.html

Graham Somerville - graham@bhinstrumentation.co.uk

26/07/2004
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