Subject: [AUDITORY] ER7C probe microphone repair/replacement options From: Skyler Jennings <Skyler.Jennings@xxxxxxxx> Date: Thu, 6 Feb 2025 22:17:34 +0000--_000_PH0PR11MB7168CD87740127C9E5FA4AEDD6F62PH0PR11MB7168namp_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Dear list, We use an ER7C probe microphone system to measure ear canal SPL from partic= ipants during our human ECochG recordings. This microphone system consists = of a small barrel-shaped microphone with a stainless steel nipple that conn= ect to a silicone probe tube for placement in the ear canal. Yesterday, I d= iscovered that the microphone has failed after 10+ years of operation. The = preamplifier seems to be in working order, though. Etymotic no longer sells= this system and I doubt they support it in terms of repairs. Do any of you have suggestions on how I might get the microphone repaired o= r purchase a second-hand replacement ER7C? Also, any thoughts on an alterna= tive probe microphone system from a different manufacturer? Crucially, I ne= ed a system that uses silicone probe tubes which can be threaded through a = bore of a standard ER3C foam insert. I have considered the AudioScan - Veri= fit probe module; however, I have not found a suitable stand-alone preampli= fier for this probe module. Many thanks for your help and advice! Skyler -- Skyler G. Jennings, Ph.D., Au.D. CCC-A Associate Professor Ph.D. Program Director Department of Communication Sciences and Disorders College of Health University of Utah 390 South 1530 East Suite 1201 BEHS Salt Lake City, UT 84112 skyler.jennings@xxxxxxxx<mailto:skyler.jennings@xxxxxxxx> --_000_PH0PR11MB7168CD87740127C9E5FA4AEDD6F62PH0PR11MB7168namp_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micr= osoft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:= //www.w3.org/TR/REC-html40"> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"= > <meta name=3D"Generator" content=3D"Microsoft Word 15 (filtered medium)"> <style><!-- /* Font Definitions */ @xxxxxxxx {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4;} @xxxxxxxx {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in; margin-bottom:.0001pt; font-size:11.0pt; font-family:"Calibri",sans-serif;} a:link, span.MsoHyperlink {mso-style-priority:99; color:#0563C1; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {mso-style-priority:99; color:#954F72; text-decoration:underline;} span.EmailStyle17 {mso-style-type:personal-compose; font-family:"Calibri",sans-serif; color:windowtext;} .MsoChpDefault {mso-style-type:export-only; font-family:"Calibri",sans-serif;} @xxxxxxxx WordSection1 {size:8.5in 11.0in; margin:1.0in 1.0in 1.0in 1.0in;} div.WordSection1 {page:WordSection1;} --></style><!--[if gte mso 9]><xml> <o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" /> </xml><![endif]--><!--[if gte mso 9]><xml> <o:shapelayout v:ext=3D"edit"> <o:idmap v:ext=3D"edit" data=3D"1" /> </o:shapelayout></xml><![endif]--> </head> <body lang=3D"EN-US" link=3D"#0563C1" vlink=3D"#954F72"> <div class=3D"WordSection1"> <p class=3D"MsoNormal">Dear list, <o:p></o:p></p> <p class=3D"MsoNormal"><o:p> </o:p></p> <p class=3D"MsoNormal">We use an ER7C probe microphone system to measure ea= r canal SPL from participants during our human ECochG recordings. This micr= ophone system consists of a small barrel-shaped microphone with a stainless= steel nipple that connect to a silicone probe tube for placement in the ear canal. Yesterday, I discovered that th= e microphone has failed after 10+ years of operation. The preamplifier seem= s to be in working order, though. Etymotic no longer sells this system and = I doubt they support it in terms of repairs. <o:p></o:p></p> <p class=3D"MsoNormal"><o:p> </o:p></p> <p class=3D"MsoNormal">Do any of you have suggestions on how I might get th= e microphone repaired or purchase a second-hand replacement ER7C? Also, any= thoughts on an alternative probe microphone system from a different manufa= cturer? Crucially, I need a system that uses silicone probe tubes which can be threaded through a bore of a s= tandard ER3C foam insert. I have considered the AudioScan – Verifit p= robe module; however, I have not found a suitable stand-alone preamplifier = for this probe module.<o:p></o:p></p> <p class=3D"MsoNormal"><o:p> </o:p></p> <p class=3D"MsoNormal">Many thanks for your help and advice!<o:p></o:p></p> <p class=3D"MsoNormal"><o:p> </o:p></p> <p class=3D"MsoNormal">Skyler <o:p></o:p></p> <p class=3D"MsoNormal"><o:p> </o:p></p> <p class=3D"MsoNormal" style=3D"mso-line-height-alt:.75pt"><span style=3D"c= olor:#1F4E79">--</span><span style=3D"color:white"><o:p></o:p></span></p> <p class=3D"MsoNormal" style=3D"mso-line-height-alt:.75pt"><span style=3D"c= olor:#1F4E79">Skyler G. Jennings, Ph.D., Au.D. CCC-A</span><span style=3D"c= olor:white"><o:p></o:p></span></p> <p class=3D"MsoNormal" style=3D"mso-line-height-alt:.75pt"><span style=3D"c= olor:#1F4E79">Associate Professor</span><span style=3D"color:white"><o:p></= o:p></span></p> <p class=3D"MsoNormal" style=3D"mso-line-height-alt:.75pt"><span style=3D"c= olor:#1F4E79">Ph.D. Program Director</span><span style=3D"color:white"><o:p= ></o:p></span></p> <p class=3D"MsoNormal" style=3D"mso-line-height-alt:.75pt"><span style=3D"c= olor:#1F4E79">Department of Communication Sciences and Disorders </span><span style=3D"color:white"><o:p></o:p></span></p> <p class=3D"MsoNormal" style=3D"mso-line-height-alt:.75pt"><span style=3D"c= olor:#1F4E79">College of Health University of Utah</span><span style=3D"col= or:white"><o:p></o:p></span></p> <p class=3D"MsoNormal" style=3D"mso-line-height-alt:.75pt"><span style=3D"c= olor:#1F4E79">390 South 1530 East</span><span style=3D"color:white"><o:p></= o:p></span></p> <p class=3D"MsoNormal" style=3D"mso-line-height-alt:.75pt"><span style=3D"c= olor:#1F4E79">Suite 1201 BEHS</span><span style=3D"color:white"><o:p></o:p>= </span></p> <p class=3D"MsoNormal" style=3D"mso-line-height-alt:.75pt"><span style=3D"c= olor:#1F4E79">Salt Lake City, UT 84112</span><span style=3D"color:white"><o= :p></o:p></span></p> <p class=3D"MsoNormal" style=3D"mso-line-height-alt:.75pt"><span style=3D"c= olor:#1F4E79"><a href=3D"mailto:skyler.jennings@xxxxxxxx"><span style= =3D"color:#1F4E79">skyler.jennings@xxxxxxxx</span></a></span><span styl= e=3D"color:white"><o:p></o:p></span></p> <p class=3D"MsoNormal"><o:p> </o:p></p> </div> </body> </html> --_000_PH0PR11MB7168CD87740127C9E5FA4AEDD6F62PH0PR11MB7168namp_--