Subject: Re: Hearing aids power consumption From: "Harriet B. Jacobster, AuD" <hjacobster@xxxxxxxx> Date: Wed, 17 Dec 2008 16:17:00 -0500 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>--------------090402010000040306040206 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Although I have no numbers on percentages, the majority of the power consumption is by the digital circuity. I don't know if there are actual percentages or even how they would be calculated. ~~~~~~~~~~~~~~~~~~~~~ Harriet B. Jacobster, Au.D. Board Certified in Audiology hjacobster@xxxxxxxx Yi-Wen Liu wrote: > Dear all, > > We all know that hearing-aid batteries run out quickly. I am wondering > whether the battery power is mainly consumed by the digital > signal-processing circuitry, or by the analog amplifier and receiver? > Does anybody know an approximate percentage, say 60% DSP and 40% > analog (just my random guess)? > > Best regards, > Yi-Wen Liu > Boys Town National Research Hospital --------------090402010000040306040206 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> <title></title> </head> <body bgcolor="#ccffff" text="#000066"> Although I have no numbers on percentages, the majority of the power consumption is by the digital circuity. I don't know if there are actual percentages or even how they would be calculated. <br> <br> ~~~~~~~~~~~~~~~~~~~~~<br> Harriet B. Jacobster, Au.D.<br> Board Certified in Audiology<br> <a class="moz-txt-link-abbreviated" href="mailto:hjacobster@xxxxxxxx">hjacobster@xxxxxxxx</a><br> <br> <br> <br> Yi-Wen Liu wrote: <blockquote cite="mid:20081217211121.0B9384F31@xxxxxxxx" type="cite">Dear all, <br> <br> We all know that hearing-aid batteries run out quickly. I am wondering whether the battery power is mainly consumed by the digital signal-processing circuitry, or by the analog amplifier and receiver? Does anybody know an approximate percentage, say 60% DSP and 40% analog (just my random guess)? <br> <br> Best regards, <br> Yi-Wen Liu <br> Boys Town National Research Hospital </blockquote> <br> </body> </html> --------------090402010000040306040206--