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Hi Mike, I assume you mean some vocalisations, no intelligible speech? Graham from MERU posted about a voice switch on the AAC forum [1] - I guess that'd work nicely with a throat mic. There is also the 'good old' sound switch that ?QED sell. I have found this a bit sensitive before. I assume that the client can not puff? Also, might be worth trying an Impulse switch to pickup jaw clench or other movement - a better (IMHO) version of the EMG switch Geoff mentioned. Hope this is of some help. Cheers simon [1] http://groups.google.com/group/cm-aac-forum/browse_thread/thread/aca8a1ca8b1b4cf -----Original Message----- From: A discussion list for Assistive Technology professionals. [mailto:[log in to unmask]] On Behalf Of Broadhurst, Mike Sent: Wednesday, May 19, 2010 11:26 AM To: [log in to unmask] Subject: Throat microphone Hi Any ideas please - a high level spinal injury patient needs access to a nurse call system. He doesn't have a reliable switch site but does have some voice. Does anyone know of a throat or lip microphone operated, switch output device? If we can source this we can interface it to the nurse call system. Thanks Mike Broadhurst mailto:[log in to unmask] Michael Broadhurst Head of Bioengineering Regional Medical Physics Department Newcastle General Hospital Newcastle upon Tyne NE4 6BE Tel: 0191 233 6161 ext 22192 This email and any files transmitted with it are confidential and intended solely for the use of the individual to whom they are addressed. If you are not the intended recipient please delete this e-mail and any attachments immediately and notify the sender. The views expressed by the sender may not be the views of the Regional Medical Physics Department. Please note that any email correspondence identifying clients will be filed in the client record. ******************************************************************************************************************** This message may contain confidential information. If you are not the intended recipient please inform the sender that you have received the message in error before deleting it. Please do not disclose, copy or distribute information in this e-mail or take any action in reliance on its contents: to do so is strictly prohibited and may be unlawful. Thank you for your co-operation. NHSmail is the secure email and directory service available for all NHS staff in England and Scotland NHSmail is approved for exchanging patient data and other sensitive information with NHSmail and GSI recipients NHSmail provides an email address for your career in the NHS and can be accessed anywhere For more information and to find out how you can switch, visit www.connectingforhealth.nhs.uk/nhsmail ********************************************************************************************************************