CROS/ BICROS Fitting Accessory
This Quick Guide is intended to give a brief explanation on how to fit CROS and BiCROS type hearing aids. The instructions in this guide have been adapted from the methods stated by Hayes (2006) and Pumford (2005), links to these articles are provided at the bottom of this document.The following points of instruction apply to the whole of this document and will aid understanding as to what is being measured in the different conditions: The probe microphone is always placed in the aidable or normal hearing ear, never in the unaidable ear. The patient will move position so that the loudspeaker is within the range of -90° through 0° to +90° relative to the front of the client at different stages in the procedure. Images have been used below to aid your understanding of this. The reference microphone is always located on the same side of the head as the loudspeaker.
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