Subject: [AUDITORY] Request for Recommendations: Power Supply and Preamp for Knowles FG-23329 Microphone From: Sathish Kumar <sathish.sreeni58@xxxxxxxx> Date: Thu, 24 Jul 2025 16:22:12 +0530--000000000000d30428063aaa9ee2 Content-Type: text/plain; charset="UTF-8" Dear List, I am currently working on a research project that involves capturing the HRTF of test subjects. Based on a review of the literature, I found that the Knowles FG-23329 microphone is commonly used for this purpose. However, I am having difficulty identifying compatible power supply options and suitable preamplifiers for this microphone. I would greatly appreciate any recommendations or suggestions for compatible power supplies, preamplifiers, or alternative microphone solutions that could serve a similar purpose. Thank you Kind regards, -- Sathish Kumar PhD Research Scholar Department of Audiology and SLP Kasturba Medical College (MAHE), Mangalore Mob: 9789447666 || E-mail: sathish.sreeni58@xxxxxxxx <https://www.linkedin.com/in/sathish-kumar-0815121a9/> <https://www.researchgate.net/profile/Sathish-Kumar-163> <https://github.com/SATHish64103> --000000000000d30428063aaa9ee2 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div><p style=3D"color:rgb(0,0,0)">Dear List,</p><p style= =3D"color:rgb(0,0,0)">I am currently working on a research project that inv= olves capturing the HRTF of test subjects. Based on a review of the literat= ure, I found that the Knowles FG-23329 microphone is commonly used for this= purpose. However, I am having difficulty identifying compatible power supp= ly options and suitable preamplifiers for this microphone.</p><p style=3D"c= olor:rgb(0,0,0)">I would greatly appreciate any recommendations or suggesti= ons for compatible power supplies, preamplifiers, or alternative microphone= solutions that could serve a similar purpose.</p></div><div>Thank you</div= ><div><br></div><div>Kind regards,</div><span class=3D"gmail_signature_pref= ix">-- </span><br><div dir=3D"ltr" class=3D"gmail_signature" data-smartmail= =3D"gmail_signature"><div dir=3D"ltr"><span style=3D"color:rgb(0,0,0)"><p d= ir=3D"ltr" style=3D"line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span= style=3D"color:rgb(32,33,36);background-color:rgb(255,255,255);font-weight= :700;font-style:normal;text-decoration:none;vertical-align:baseline;white-s= pace:pre-wrap"><font face=3D"arial, sans-serif">Sathish Kumar</font></span>= </p><p dir=3D"ltr" style=3D"line-height:1.2;background-color:rgb(255,255,25= 5);margin-top:0pt;margin-bottom:0pt"><span style=3D"color:rgb(32,33,36);bac= kground-color:transparent;font-weight:400;font-style:normal;text-decoration= :none;vertical-align:baseline;white-space:pre-wrap"><font face=3D"arial, sa= ns-serif">PhD Research Scholar</font></span></p><p dir=3D"ltr" style=3D"lin= e-height:1.2;background-color:rgb(255,255,255);margin-top:0pt;margin-bottom= :0pt"><span style=3D"color:rgb(32,33,36);background-color:transparent;font-= weight:400;font-style:normal;text-decoration:none;vertical-align:baseline;w= hite-space:pre-wrap"><font face=3D"arial, sans-serif">Department of Audiolo= gy and SLP</font></span></p><p dir=3D"ltr" style=3D"line-height:1.2;backgro= und-color:rgb(255,255,255);margin-top:0pt;margin-bottom:0pt"><span style=3D= "color:rgb(32,33,36);background-color:transparent;font-weight:400;font-styl= e:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"= ><font face=3D"arial, sans-serif">Kasturba Medical College (MAHE), Mangalor= e</font></span></p><p style=3D"line-height:1.2;background-color:rgb(255,255= ,255);margin-top:0pt;margin-bottom:0pt"><span style=3D"color:rgb(32,33,36);= background-color:transparent;font-weight:400;font-style:normal;text-decorat= ion:none;vertical-align:baseline;white-space:pre-wrap"><font face=3D"arial,= sans-serif">Mob: 9789447666 || E-mail: <a href=3D"mailto:sathish.sreeni58@xxxxxxxx= gmail.com" target=3D"_blank">sathish.sreeni58@xxxxxxxx</a></font></span></= p><p dir=3D"ltr" style=3D"line-height:1.2;background-color:rgb(255,255,255)= ;margin-top:0pt;margin-bottom:0pt"><br></p><p dir=3D"ltr" style=3D"line-hei= ght:1.2;margin-top:0pt;margin-bottom:0pt"><span><span style=3D"font-size:11= pt;font-family:Arial,sans-serif;vertical-align:baseline;white-space:pre-wra= p"><span style=3D"border:medium;display:inline-block;overflow:hidden;width:= 38px;height:38px"><a href=3D"https://www.linkedin.com/in/sathish-kumar-0815= 121a9/" target=3D"_blank"><img src=3D"https://lh6.googleusercontent.com/5by= XAEkLcmDiDEuMoWneEZQdjIKw6iXHjfmLsRbz0FYhcx20eR5fkDLbv6Pea9afWwT5tctVYd0IA6= YZG3DjVnpO5wv6bekCzl0jnN0rHbUDj_i0_ltWn5DcTWV_d3VZUj0vee8E3Sn4M_fstbBxj8Q" = width=3D"38" height=3D"38" style=3D"margin-left:0px;margin-top:0px"></a></s= pan></span><span style=3D"font-size:11pt;font-family:Arial,sans-serif;verti= cal-align:baseline;white-space:pre-wrap"> =C2=A0 </span><span style=3D"font= -size:11pt;font-family:Arial,sans-serif;vertical-align:baseline;white-space= :pre-wrap"><span style=3D"border:medium;display:inline-block;overflow:hidde= n;width:38px;height:38px"><a href=3D"https://www.researchgate.net/profile/S= athish-Kumar-163" target=3D"_blank"><img src=3D"https://lh5.googleuserconte= nt.com/xK4xzers236Zr7hl6kTXCcf28ETM6L4XYqRBNoIyXKXLTMavTMfvDdDVpQZC_uarIITz= hAVe-L36vaHFM-9zalrKP9vk45O-eCzHcQdE7pQ4hbJUEqYILghXvWrhlqGbOL6obnonsC7O-CD= SXgVcxQk" width=3D"38" height=3D"38" style=3D"margin-left:0px;margin-top:0p= x"></a></span></span><span style=3D"font-size:11pt;font-family:Arial,sans-s= erif;vertical-align:baseline;white-space:pre-wrap">=C2=A0=C2=A0=C2=A0</span= ><span style=3D"font-size:11pt;font-family:Arial,sans-serif;vertical-align:= baseline;white-space:pre-wrap"><span style=3D"border:medium;display:inline-= block;overflow:hidden;width:38px;height:38px"><a href=3D"https://github.com= /SATHish64103" target=3D"_blank"><img src=3D"https://lh5.googleusercontent.= com/TeW5o2pJsNEw0t-KL4RMnHMeyOjtzL8-GjpsM26pbcbFdR9wKh8FfouojMU57VaePdryTPy= W8Y9jXgwUVNfqHDvlrn_gUM8HwlgzD_pa06vUm0Tw9gfRYz1Pi7PZqRQe32_q9S7Gc0c9DR_Yzt= A2C20" width=3D"38" height=3D"38" style=3D"margin-left:0px;margin-top:0px">= </a></span></span></span><br></p></span></div></div></div> --000000000000d30428063aaa9ee2--