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Widex Senso Plus CIC Technical Guide by Hearing Planet
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Searched and founda 70 acoustic amplifiers anti distortion filter anti hum filter attenuator attenuators battery eliminator battery eliminator circuit comfort guide compass software widex crossover crossovers ddd digital amplifiers small dsp guide spacing hearing aid batteries hearing aid batteries hearing planet hearing aid service hearing filter hi pro how much importance of speech linear amplifier linear amplifiers linear guide linear guides lp2 meaning of speech process mpos noah noah hi pro senso cic shell case signal to noise ratio ski speech compressor speech enhancement algorithm speech processor technical analysis widex widex battery widex cic widex compass software widex filter widex filter cic widex hearing aid widex senso widex senso cic widex senso plus
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fully digital cic · 3 channel dsp with · loudness mapping · sound stabilizertm · speech enhancement · speech intensification systemtm · in-situ sensogram fitting system · automatic feedback management recommended for · mild to moderate-to-severe hearing losses · all configurations of hearing loss including ski-slope sloping flat and reverse slope losses · people who desire a fully automatic aid with no manual controls suggested fitting range the senso cic is a 100 digital hearing aid with a dedicated dsp digital signal processor utilizing over 20 bit representation of the signal maximum bit depth is 32 bits and 32 khz sampling frequency senso cic offers all the senso advantages · 3 channel compression with adjustable crossover frequencies to maximize fitting flexibility · loudness mapping to compensate for
| recruitment · sound stabilizertm for smooth gain transition · in-situ sensogram fitting to increase accuracy of fit · automatic feedback manager to minimize feedback · speech enhancement algorithm to increase listening comfort and ease in noise · speech intensification systemtm offers additional focus on speech signals in noisy environments · expansion processing to minimize microphone noise · extended input dynamic range to allow input levels of up to 100 db spl without saturation/distortion · automatic output control aoc to ensure low distortion at high output levels · highly efficient ddd digital output amplifier to achieve long battery life 125 hours from a size 10 battery and high mpo 110 db spl · low battery beep-tone indicator to alert battery replacement is needed separate a/d converter for inductive input to allow equalization for microphone response and adjustable sensitivity · anti-hum filter to minimize line noise i.e 60hz interference · high immunity against interference
| the advanced signal processing algorithms used in senso make results of direct conventional measurements variable and difficult to interpret special considerations are necessary in making these measurements for quality control and service purposes a special test mode has been defined that allows inspection of the electroacoustic integrity of the hearing aid s components the test mode can be accessed from both the lp2 programmer and the compass software loudness mapping loudness mapping uses an advanced automatic volume control function to provide audibility and comfort for most sounds compared to linear hearing aids soft sounds are amplified more providing a lower aided threshold and loud sounds are amplified less reducing listening strain the widest possible range of sound is preserved within the wearer narrow dynamic s range unlike typical wdrc systems which use fast regulation time to achieve a nonlinear gain function loudness mapping uses long adaptive regulation time and allows
| initially this process is described in our programming manuals speech enhancement one of the main difficulties for hearing aid wearers is understanding speech in noise the speech enhancement algorithm uses a patented speech detection function which performs a statistical analysis of the incoming signal in each of the three frequency channels with the speech enhancement algorithm senso emphasizes the frequency regions which hold the most speech and attenuates the frequencies dominated by noise speech intensification systemtm this system further increases the focus on speech reproduction in the most difficult listening situations by adding cross-channel analysis to the results of the speech enhancement algorithm this means that the final output of the hearing aid will not only depend on the signal-to-noise ratio in each channel alone but also across the 3 channels and their relative importance to speech understanding the total sound spectrum is considered in the adjustment of each channe
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