Subject: Re: [AUDITORY] Request for Recommendations: Power Supply and Preamp for Knowles FG-23329 Microphone From: Sathish Kumar <sathish.sreeni58@xxxxxxxx> Date: Sat, 26 Jul 2025 23:37:50 +0530--000000000000727bd8063ad8f0d0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Dear Lorenzo, Thank you very much for your suggestion and for sharing the reference. I noticed that the stepped-down output voltage of the RODE VXLR+ is slightly higher (3 - 5V) than the recommended voltage for the Knowles FG-23329 microphone (1.3 - 3V). Is it safe to use it as is? Kind regards, Sathish Kumar. On Fri, Jul 25, 2025 at 2:35=E2=80=AFPM Picinali, Lorenzo <l.picinali@xxxxxxxx= ial.ac.uk> wrote: > Hello Sathish, > > you can use the power supply from RODE - you can find more infomation > about it in our SONICOM HRTF dataset paper - https://*doi* > .org/10.17743/jaes.2022.0066 > > Best > Lorenzo > > -- > Lorenzo Picinali > Professor in Spatial Acoustics and Immersive Audio > Dyson School of Design Engineering > Imperial College London > Dyson Building > Imperial College Road > South Kensington, SW7 2DB, London > E: l.picinali@xxxxxxxx > > https://profiles.imperial.ac.uk/l.picinali > https://www.axdesign.co.uk/ > https://www.sonicom.eu/ > ------------------------------ > *From:* AUDITORY - Research in Auditory Perception < > AUDITORY@xxxxxxxx> on behalf of Sathish Kumar < > sathish.sreeni58@xxxxxxxx> > *Sent:* 24 July 2025 11:52 AM > *To:* AUDITORY@xxxxxxxx <AUDITORY@xxxxxxxx> > *Subject:* [AUDITORY] Request for Recommendations: Power Supply and > Preamp for Knowles FG-23329 Microphone > > > 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. Howeve= r, > 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> > --000000000000727bd8063ad8f0d0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr">Dear Lorenzo,<div><span style=3D"color:rgb(0,0,0)">Thank y= ou very much for your suggestion and for sharing the reference.=C2=A0</span= ></div><div><span style=3D"color:rgb(0,0,0)">I noticed that the stepped-dow= n output voltage of the RODE VXLR+=C2=A0is slightly higher (3 - 5V) than th= e recommended voltage for the Knowles=C2=A0</span><span style=3D"color:rgb(= 0,0,0)">FG-23329=C2=A0</span><span style=3D"color:rgb(0,0,0)">microphone (1= .3 - 3V). Is it safe to use it as is?</span></div><div><span style=3D"color= :rgb(0,0,0)"><br></span></div><div><span style=3D"color:rgb(0,0,0)">Kind re= gards,</span></div><div><span style=3D"color:rgb(0,0,0)">Sathish Kumar.</sp= an></div></div><br><div class=3D"gmail_quote gmail_quote_container"><div di= r=3D"ltr" class=3D"gmail_attr">On Fri, Jul 25, 2025 at 2:35=E2=80=AFPM Pici= nali, Lorenzo <<a href=3D"mailto:l.picinali@xxxxxxxx">l.picinali@xxxxxxxx= mperial.ac.uk</a>> wrote:<br></div><blockquote class=3D"gmail_quote" sty= le=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:soli= d;border-left-color:rgb(204,204,204);padding-left:1ex"><div class=3D"msg522= 1893040893241657"> <div dir=3D"ltr"> <div style=3D"font-family:"Times New Roman",Times,serif;font-size= :12pt;color:rgb(0,0,0)"> Hello Sathish,</div> <div style=3D"font-family:"Times New Roman",Times,serif;font-size= :12pt;color:rgb(0,0,0)"> <br> </div> <div style=3D"font-family:"Times New Roman",Times,serif;font-size= :12pt;color:rgb(0,0,0)"> you can use the power supply from RODE - you can find more infomation about= it in our SONICOM HRTF dataset paper - https://<i>doi</i>.org/10.17743/jae= s.2022.0066</div> <div style=3D"font-family:"Times New Roman",Times,serif;font-size= :12pt;color:rgb(0,0,0)"> <br> </div> <div style=3D"font-family:"Times New Roman",Times,serif;font-size= :12pt;color:rgb(0,0,0)"> Best</div> <div style=3D"font-family:"Times New Roman",Times,serif;font-size= :12pt;color:rgb(0,0,0)"> Lorenzo</div> <div id=3D"m_5221893040893241657Signature"> <div style=3D"font-family:"Times New Roman",Times,serif;font-size= :12pt;color:rgb(0,0,0)"> <br> </div> <div style=3D"font-family:Tahoma;font-size:10pt">--<br> Lorenzo Picinali<br> Professor in Spatial<span style=3D"color:rgb(0,0,0)">=C2=A0Acoustics and Im= mersive Audio</span><br> Dyson School of Design Engineering<br> Imperial College London<br> Dyson Building<br> Imperial College Road<br> South Kensington, SW7 2DB, London<br> E: <a href=3D"mailto:l.picinali@xxxxxxxx" target=3D"_blank">l.picinal= i@xxxxxxxx</a><br> <u><br> </u><span style=3D"color:rgb(0,0,0)"><a href=3D"https://profiles.imperial.a= c.uk/l.picinali" target=3D"_blank">https://profiles.imperial.ac.uk/l.picina= li</a></span><br> <a rel=3D"noopener noreferrer" href=3D"https://www.axdesign.co.uk/" target= =3D"_blank">https://www.axdesign.co.uk/</a></div> <div style=3D"font-family:Tahoma;font-size:10pt"><a rel=3D"noopener norefer= rer" href=3D"https://www.sonicom.eu/" target=3D"_blank">https://www.sonicom= .eu/</a></div> </div> <div id=3D"m_5221893040893241657appendonsend"></div> <hr style=3D"display:inline-block;width:98%"> <div id=3D"m_5221893040893241657divRplyFwdMsg" dir=3D"ltr"><font face=3D"Ca= libri, sans-serif" style=3D"font-size:11pt" color=3D"#000000"><b>From:</b> = AUDITORY - Research in Auditory Perception <<a href=3D"mailto:AUDITORY@xxxxxxxx= ISTS.MCGILL.CA" target=3D"_blank">AUDITORY@xxxxxxxx</a>> on behal= f of Sathish Kumar <<a href=3D"mailto:sathish.sreeni58@xxxxxxxx" target= =3D"_blank">sathish.sreeni58@xxxxxxxx</a>><br> <b>Sent:</b> 24 July 2025 11:52 AM<br> <b>To:</b> <a href=3D"mailto:AUDITORY@xxxxxxxx" target=3D"_blank">AU= DITORY@xxxxxxxx</a> <<a href=3D"mailto:AUDITORY@xxxxxxxx" = target=3D"_blank">AUDITORY@xxxxxxxx</a>><br> <b>Subject:</b> [AUDITORY] Request for Recommendations: Power Supply and Pr= eamp for Knowles FG-23329 Microphone</font> <div>=C2=A0</div> </div> <div> <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 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 preamp= lifiers for this microphone.</p> <p style=3D"color:rgb(0,0,0)">I would greatly appreciate any recommendation= s or suggestions for compatible power supplies, preamplifiers, or alternati= ve microphone solutions that could serve a similar purpose.</p> </div> <div>Thank you</div> <div><br> </div> <div>Kind regards,</div> <span>-- </span><br> <div dir=3D"ltr"> <div dir=3D"ltr"><span style=3D"color:rgb(0,0,0)"> <p dir=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-we= ight:700;font-style:normal;text-decoration:none;vertical-align:baseline;whi= te-space: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(255,255,255);m= argin-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;white-s= pace:pre-wrap"><font face=3D"arial, sans-serif">PhD Research Scholar</font>= </span></p> <p dir=3D"ltr" style=3D"line-height:1.2;background-color:rgb(255,255,255);m= argin-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;white-s= pace:pre-wrap"><font face=3D"arial, sans-serif">Department of Audiology and= SLP</font></span></p> <p dir=3D"ltr" style=3D"line-height:1.2;background-color:rgb(255,255,255);m= argin-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;white-s= pace:pre-wrap"><font face=3D"arial, sans-serif">Kasturba Medical College (M= AHE), Mangalore</font></span></p> <p style=3D"line-height:1.2;background-color:rgb(255,255,255);margin-top:0p= t;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;white-s= pace:pre-wrap"><font face=3D"arial, sans-serif">Mob: 9789447666 || E-mail: <a href=3D"mailto:sathish.sreeni58@xxxxxxxx" target=3D"_blank">sathish.sre= eni58@xxxxxxxx</a></font></span></p> <p dir=3D"ltr" style=3D"line-height:1.2;background-color:rgb(255,255,255);m= argin-top:0pt;margin-bottom:0pt"> <br> </p> <p dir=3D"ltr" style=3D"line-height:1.2;margin-top:0pt;margin-bottom:0pt"><= span><span style=3D"font-size:11pt;font-family:Arial,sans-serif;vertical-al= ign:baseline;white-space:pre-wrap"><span style=3D"border:medium;display:inl= ine-block;overflow:hidden;width:38px;height:38px"><a href=3D"https://www.li= nkedin.com/in/sathish-kumar-0815121a9/" target=3D"_blank"><img width=3D"38"= height=3D"38" style=3D"margin-left: 0px; margin-top: 0px;" src=3D"https://= lh6.googleusercontent.com/5byXAEkLcmDiDEuMoWneEZQdjIKw6iXHjfmLsRbz0FYhcx20e= R5fkDLbv6Pea9afWwT5tctVYd0IA6YZG3DjVnpO5wv6bekCzl0jnN0rHbUDj_i0_ltWn5DcTWV_= d3VZUj0vee8E3Sn4M_fstbBxj8Q"></a></span></span><span style=3D"font-size:11p= t;font-family:Arial,sans-serif;vertical-align:baseline;white-space:pre-wrap= "> =C2=A0 </span><span style=3D"font-size:11pt;font-family:Arial,sans-serif;v= ertical-align:baseline;white-space:pre-wrap"><span style=3D"border:medium;d= isplay:inline-block;overflow:hidden;width:38px;height:38px"><a href=3D"http= s://www.researchgate.net/profile/Sathish-Kumar-163" target=3D"_blank"><img = width=3D"38" height=3D"38" style=3D"margin-left: 0px; margin-top: 0px;" src= =3D"https://lh5.googleusercontent.com/xK4xzers236Zr7hl6kTXCcf28ETM6L4XYqRBN= oIyXKXLTMavTMfvDdDVpQZC_uarIITzhAVe-L36vaHFM-9zalrKP9vk45O-eCzHcQdE7pQ4hbJU= EqYILghXvWrhlqGbOL6obnonsC7O-CDSXgVcxQk"></a></span></span><span style=3D"f= ont-size:11pt;font-family:Arial,sans-serif;vertical-align:baseline;white-sp= ace:pre-wrap">=C2=A0=C2=A0=C2=A0</span><span style=3D"font-size:11pt;font-f= amily:Arial,sans-serif;vertical-align:baseline;white-space:pre-wrap"><span = style=3D"border:medium;display:inline-block;overflow:hidden;width:38px;heig= ht:38px"><a href=3D"https://github.com/SATHish64103" target=3D"_blank"><img= width=3D"38" height=3D"38" style=3D"margin-left: 0px; margin-top: 0px;" sr= c=3D"https://lh5.googleusercontent.com/TeW5o2pJsNEw0t-KL4RMnHMeyOjtzL8-Gjps= M26pbcbFdR9wKh8FfouojMU57VaePdryTPyW8Y9jXgwUVNfqHDvlrn_gUM8HwlgzD_pa06vUm0T= w9gfRYz1Pi7PZqRQe32_q9S7Gc0c9DR_YztA2C20"></a></span></span></span><br> </p> </span></div> </div> </div> </div> </div> </div></blockquote></div> --000000000000727bd8063ad8f0d0--