[AUDITORY] Recommendations for microphone ("penman.t@xxxxxxxx Gmail" )

Subject: [AUDITORY] Recommendations for microphone From: "penman.t@xxxxxxxx Gmail" <penman.t@xxxxxxxx> Date: Sun, 21 Apr 2019 18:16:09 -0700 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY> --Apple-Mail-3A64B458-1086-46FE-9B78-433AA5BDC568 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Dear Friends and Colleagues of the Auditory Listserv, =20 Thank you for your ongoing contributions to auditory research. My colleagues= want to collect language samples that can accurately analyze fundamental fr= equency, pitch range, and other acoustic properties. They are looking to pur= chase a microphone, pre-amp, and decibel meter that work well in tandem. Fur= thermore, the microphone must meet these guidelines at the minimum: =20 * There should be a flat frequency response (i.e., variation of less than 2 d= B) across the frequency range between the lowest expected f0 of voice and th= e highest spectral component of interest (approximately 50=E2=80=938000 Hz) =20 * Noise level should be at least 15 dB lower than the sound level of the qui= etest vocal sound =20 * The upper limit of the dynamic range should be above the sound level of th= e loudest phonations (i.e., can record the loudest voice production without s= aturation/clipping) =20 *Head-mounted, omnidirectional condenser microphone =20 Evidence that guided the criteria above: 1. Patel, R. R., Awan, S. N., Barkmeier-Kraemer, J., Courey, M., Deliyski, D= ., Eadie, T., Paul, D., =C5=A0vec, J. G., & Hillman, R. (2018). Recommended P= rotocols for Instrumental Assessment of Voice: American Speech-Language-Hear= ing Association Expert Panel to Develop a Protocol for Instrumental Assessme= nt of Vocal Function. American Journal of Speech-Language Pathology, 27(3), 8= 87=E2=80=93905. https://doi.org/10.1044/2018_AJSLP-17-0009 =20 2. =C5=A0vec, J. G. & Granqvist, S. (2010). Guidelines for selecting microph= ones for human voice production research. American Journal of Speech-Languag= e Pathology, 19(4), 356=E2=80=93368. https://doi.org/10.1044/1058-0360(2010/= 09-0091) =20 3. =C5=A0r=C3=A1mkov=C3=A1, H., Granqvist, S., Herbst, C. T., & =C5=A0vec, J= . G. (2015). The softest sound levels of the human voice in normal subjects.= The Journal of the Acoustical Society of America, 137(1), 407=E2=80=93418. h= ttps://doi.org/10.1121/1.4904538 Thank you for your recommendations. Regards, Tina Penman =20 --Apple-Mail-3A64B458-1086-46FE-9B78-433AA5BDC568 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D= utf-8"></head><body dir=3D"auto">Dear Friends and Colleagues of the Auditory Listserv,</sp= an> <= /span>Than= k you for your ongoing contributions to auditory research. My colleagues wan= t to collect language samples that can accurately analyze fundamental freque= ncy, pitch range, and other acoustic properties. They are looking to purchas= e a microphone, pre-amp, and decibel meter that work well in tandem. Further= more, the microphone must meet these guidelines at the minimum:<p= class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; line-height: normal;= "> </p= >* There shoul= d be a flat frequency response (i.e., variation of less than 2= dB) across the frequency range between the lowest expected f0 of = voice and the highest spectral component of interest (approximately 50=E2= =80=938000 Hz) * Noise level should be at least 15 dB lower than the sound lev= el of the quietest vocal sound * The upper limit of the dynamic range sho= uld be above the sound level of the loudest phonations (i.e., can recor= d the loudest voice production without saturation/clipping)<s= pan style=3D"background-color: rgba(255, 255, 255, 0);"> = *Head-mounted, omn= idirectional condenser microphone Evidence that guided the criteria above:</spa= n>1.=  Patel, R. R., Awan, S. N., Barkmeier-Kraemer, J., Courey, M., Deliyski= , D., Eadie, T., Paul, D., =C5=A0vec, J. G., & Hillman, R. (2018). Recom= mended Protocols for Instrumental Assessment of Voice: American Speech-Langu= age-Hearing Association Expert Panel to Develop a Protocol for Instrumental A= ssessment of Vocal Function. American Journal of Speech-Language Pat= hology, 27(3), 887=E2=80=93905. <a href=3D"https://doi.= org/10.1044/2018_AJSLP-17-0009">https://doi.org/10.1044/2018_AJSLP-17-0009</= a>&= nbsp;2. =C5=A0vec, J. G. & Granqvist, S. (2010). Guidelines for s= electing microphones for human voice production research. American J= ournal of Speech-Language Pathology, 19(4), 356=E2=80=93368.=  <a href=3D"https://doi.org/10.1044/1058-0360(2010/09-0091)">https://do= i.org/10.1044/1058-0360(2010/09-0091)</a> 3. =C5=A0r=C3=A1mkov=C3=A1= , H., Granqvist, S., Herbst, C. T., & =C5=A0vec, J. G. (2015). The softe= st sound levels of the human voice in normal subjects. The Journal o= f the Acoustical Society of America, 137(1), 407=E2=80=93418= . <a href=3D"https://doi.org/10.1121/1.4904538">https://doi.org/10.1121= /1.4904538</a> Thank you for your reco= mmendations. Regards,Tina Penma= n </sp= an><div dir=3D"ltr"></div></body></html>= --Apple-Mail-3A64B458-1086-46FE-9B78-433AA5BDC568--

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DAn Ellis <dpwe@ee.columbia.edu>
Electrical Engineering Dept., Columbia University