Subject: [AUDITORY] External class compliant sound cards From: Kamil Adiloglu <kamil.adiloglu@xxxxxxxx> Date: Wed, 29 May 2019 11:59:10 +0200 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>--000000000000d82a2d058a03d57a Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Dear list, I am compiling a list of suitable sound cards for a mobile real-time experimental setup. There are some criteria that such sound card should fulfil: - External sound card: We have a mini PC with an on-board sound chip. We want to use an external sound card with a decent sound quality. Our mini PC has USB-2, USB-3, USB-C (Thunderbolt 3) connections. - Class compliance: We have a real-time signal processing platform, which runs on Linux (Actually it also supports Windows and Mac, but we prefer Linux). Therefore we need a sound card, which Linux can operate. Manufacturers usually do not officially support Linux, but there are some, which run under Linux, because they are class compliant and do not require a dedicated driver. - At least 4 (preferably 6) analog (identical) inputs and at least 2 analog (identical) outputs - Lower sampling rates: As we will do real-time signal processing, we prefer lower sampling rates for the sake of computational complexity. Therefore, ideally we would like to have a sound card, which supports even 16kHz, but 32kHz also OK. I know that these criteria are now easy to fulfil. So far, I couldn't find any sound card, which fulfils all the requirements. In the worst case, we can sacrifice the last requirement and downsample our sound input before processing, but it is a good-to-have one. We would appreciate any suggestion. Thank you in advance. Best Regards, Kamil Adiloglu --=20 Dr. Kamil Adilo=C4=9Flu Forschung und Entwicklung H=C3=B6rTech gGmbH Marie-Curie-Str. 2 D-26129 Oldenburg Germany Phone: +49 441 2172-215 Fax: +49 441 2172-250 Email: k.adiloglu@xxxxxxxx www.hoertech.de HRB 5035, AG Oldenburg, Gesch=C3=A4ftsf=C3=BChrer: Sebastian Quirandt ---------------------------------------------------------------------------= ----- H=C3=B6rTech gGmbH ist zertifiziert nach DIN EN ISO 13485 ---------------------------------------------------------------------------= ----- H=C3=B6rTech gGmbH ist Partner im Exzellenzcluster Hearing4all www.hearing4= all.eu ---------------------------------------------------------------------------= ----- Der Inhalt dieser E-Mail ist ausschlie=C3=9Flich f=C3=BCr den/die bezeichne= ten Adressaten bestimmt. Wenn Sie nicht der vorgesehene Adressat dieser E-Mail oder dessen Vertreter sein sollten, beachten Sie bitte, dass jede Form der Kenntnisnahme, Ver=C3=B6ffentlichung, Vervielf=C3=A4ltigung oder Weitergabe des Inhalts dieser E-Mail unzul=C3=A4ssig ist. Bitte setzen Sie sich in diesem Fall mit dem Absender der E-Mail in Verbindung. --000000000000d82a2d058a03d57a Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div dir=3D"ltr">Dear list,<div>I am compiling a list of s= uitable sound cards for a mobile real-time experimental setup. There are so= me criteria that such sound card should fulfil:</div><div>- External sound = card: We have a mini PC with an on-board sound chip. We want to use an exte= rnal sound card with a decent sound quality. Our mini PC has USB-2, USB-3, = USB-C (Thunderbolt 3) connections.</div><div><br></div><div>- Class complia= nce: We have a real-time signal processing platform, which runs on Linux (A= ctually it also supports Windows and Mac, but we prefer Linux). Therefore w= e need a sound card, which Linux can operate. Manufacturers usually do not = officially support Linux, but there are some, which run under Linux, becaus= e they are class compliant and do not require a dedicated driver.</div><div= ><br></div><div>- At least 4 (preferably 6) analog (identical) inputs and a= t least 2 analog (identical) outputs</div><div><br></div><div>- Lower sampl= ing rates: As we will do real-time signal processing, we prefer lower sampl= ing rates for the sake of computational complexity. Therefore, ideally we w= ould like to have a sound card, which supports even 16kHz, but 32kHz also O= K.</div><div><br></div><div>I know that these criteria are now easy to fulf= il. So far, I couldn't find any sound card, which fulfils all the requi= rements. In the worst case, we can sacrifice the last requirement and downs= ample our sound input before processing, but it is a good-to-have one.</div= ><div><br></div><div>We would appreciate any suggestion. Thank you in advan= ce.</div><div><br></div><div>Best Regards,</div><div>Kamil Adiloglu</div><d= iv><br></div><div><br></div><div><pre class=3D"gmail-moz-signature" cols=3D= "72" style=3D"color:rgb(0,0,0)">--=20 Dr. Kamil Adilo=C4=9Flu Forschung und Entwicklung H=C3=B6rTech gGmbH Marie-Curie-Str. 2 D-26129 Oldenburg Germany Phone: +49 441 2172-215 Fax: +49 441 2172-250 Email: <a href=3D"mailto:k.adiloglu@xxxxxxxx">k.adiloglu@xxxxxxxx</a> <a href=3D"http://www.hoertech.de">www.hoertech.de</a> HRB 5035, AG Oldenburg, Gesch=C3=A4ftsf=C3=BChrer: Sebastian Quirandt ---------------------------------------------------------------------------= ----- H=C3=B6rTech gGmbH ist zertifiziert nach DIN EN ISO 13485 ---------------------------------------------------------------------------= ----- H=C3=B6rTech gGmbH ist Partner im Exzellenzcluster Hearing4all=20 <a href=3D"http://www.hearing4all.eu">www.hearing4all.eu</a> ---------------------------------------------------------------------------= ----- Der Inhalt dieser E-Mail ist ausschlie=C3=9Flich f=C3=BCr den/die bezeichne= ten Adressaten bestimmt. Wenn Sie nicht der vorgesehene Adressat dieser E-Mail oder dessen Vertreter= sein sollten, beachten Sie bitte, dass jede Form der Kenntnisnahme, Ver=C3=B6ffentlichung= , Vervielf=C3=A4ltigung oder Weitergabe des Inhalts dieser E-Mail unzul=C3=A4ssig ist. Bitte setzen= Sie sich in diesem Fall mit dem Absender der E-Mail in Verbindung.</pre></div></div></div> --000000000000d82a2d058a03d57a--