Re: Wireless Audio for Research (Brian FG Katz )


Subject: Re: Wireless Audio for Research
From:    Brian FG Katz  <brian.katz@xxxxxxxx>
Date:    Sun, 7 Dec 2014 11:41:57 +0100
List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

This is a multipart message in MIME format. ------=_NextPart_000_0A89_01D01212.CDF82F50 Content-Type: multipart/alternative; boundary="----=_NextPart_001_0A8A_01D01212.CDF82F50" ------=_NextPart_001_0A8A_01D01212.CDF82F50 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable I would agree with Dimitris on this. My preference would be to have a = separate machine wired to the audio system, and the tablet acts as a = mere controller or interface, connected via WiFi. This should be = possible on most platforms, using basic OSC protocol to a machine = running Max or PD, or just a remote desktop interface.=20 =20 If there needs to be some processing on the tablet, one approach we have = used for telepresence/remote sensing is to send the audio via WiFi = network to the remote machine connected to the audio hardware. We used = the netsend~ project which functions well under Win and OSX in Max and = PD. You can stream the raw audio, or there are compression options, = which I think include flac. The code is available for = modifications=E2=80=A6=20 =20 One key issue is the importance of latency in your experiment. Using the = tablet as a remote controller would I think induce the lease latency, = relative to these wireless audio streaming solutions.=20 =20 Just my 2 cents. =20 -Brian =20 -- Brian FG Katz, Ph.D, HDR Audio & Acoustique LIMSI-CNRS Rue John von Neumann Campus Universitaire d'Orsay B=C3=A2t 508 91405 Orsay cedex=20 France tel. (+33) 01 69 85 81 55 fax. (+33) 01.69.85.80.88 e-mail Brian.Katz@xxxxxxxx <mailto:Brian.Katz@xxxxxxxx> web_theme: <http://www.limsi.fr/Scientifique/aa/thmsonesp/> = http://www.limsi.fr/Scientifique/aa/thmsonesp/ web_group: <http://www.limsi.fr/Scientifique/aa/> = http://www.limsi.fr/Scientifique/aa/ =20 De : AUDITORY - Research in Auditory Perception = [mailto:AUDITORY@xxxxxxxx De la part de Dimitris Kosmidis Envoy=C3=A9 : dimanche 7 d=C3=A9cembre 2014 09:05 =C3=80 : AUDITORY@xxxxxxxx Objet : Re: Wireless Audio for Research =20 Hi David, I don't have experience with streaming audio wirelessly. But in case you = want to avoid any problems altogether you could try having a device = wired to the loudspeakers outputting sound, and a remote interface (e.g. = your tablet) controlling the first device. Regards, Dimitris =20 On Sat, Dec 6, 2014 at 7:43 PM, Landsberger, David = <David.Landsberger@xxxxxxxx> wrote: Hi All, I was wondering if anyone had thoughts about wireless audio connections for research. We are running our spectral resolution task (SMRT; smrt.tigerspeech.com) on a small windows 8.1 tablet. It would be nice for the audio to be transferred wireless to the speakers. I am considered about degrading the signal quality. Any suggestions on how to do this without adding signal noise or lossy data compression? I understand bluetooth is not acceptable. What about using airplay, miracast, or chromecast? Has anyone had luck / experience with these technologies for wireless PC audio streaming of quality acceptable for psychoacoustic research? Thanks, David -- David Landsberger, Ph.D. Assistant Professor Department of Otolaryngology NYU School of Medicine 550 1st Avenue NBV 5E5 New York, NY 10016 =20 ------=_NextPart_001_0A8A_01D01212.CDF82F50 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" = xmlns:o=3D"urn:schemas-microsoft-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=3DContent-Type content=3D"text/html; charset=3Dutf-8"><meta = name=3DGenerator content=3D"Microsoft Word 14 (filtered = medium)"><style><!-- /* Font Definitions */ @xxxxxxxx {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} @xxxxxxxx {font-family:Tahoma; panose-1:2 11 6 4 3 5 4 4 2 4;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0cm; margin-bottom:.0001pt; font-size:12.0pt; font-family:"Times New Roman","serif";} a:link, span.MsoHyperlink {mso-style-priority:99; color:blue; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {mso-style-priority:99; color:purple; text-decoration:underline;} span.EmailStyle17 {mso-style-type:personal-reply; font-family:"Calibri","sans-serif"; color:#1F497D;} .MsoChpDefault {mso-style-type:export-only; font-family:"Calibri","sans-serif"; mso-fareast-language:EN-US;} @xxxxxxxx WordSection1 {size:612.0pt 792.0pt; margin:70.85pt 70.85pt 70.85pt 70.85pt;} 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=3DFR link=3Dblue = vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span = lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>I would agree with Dimitris on this. My preference would be to have a = separate machine wired to the audio system, and the tablet acts as a = mere controller or interface, connected via WiFi. This should be = possible on most platforms, using basic OSC protocol to a machine = running Max or PD, or just a remote desktop interface. = <o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>If there needs to be some processing on the tablet, one approach we = have used for telepresence/remote sensing is to send the audio via WiFi = network to the remote machine connected to the audio hardware. We used = the netsend~ project which functions well under Win and OSX in Max and = PD. You can stream the raw audio, or there are compression options, = which I think include flac. The code is available for = modifications=E2=80=A6 <o:p></o:p></span></p><p class=3DMsoNormal><span = lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>One key issue is the importance of latency in your experiment. Using = the tablet as a remote controller would I think induce the lease = latency, relative to these wireless audio streaming solutions. = <o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>Just my 2 cents.<o:p></o:p></span></p><p class=3DMsoNormal><span = lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>-Brian<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>--<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>Brian FG Katz, Ph.D, HDR<o:p></o:p></span></p><p = class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>Audio &amp; Acoustique<o:p></o:p></span></p><p = class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>LIMSI-CNRS<o:p></o:p></span></p><p class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>Rue John von Neumann<br>Campus Universitaire d'Orsay<br>B=C3=A2t = 508<br>91405 Orsay cedex</span><span = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'> <o:p></o:p></span></p><p class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>France<o:p></o:p></span></p><p class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>tel. (+33) 01 69 85 81 55<o:p></o:p></span></p><p = class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>fax. (+33) 01.69.85.80.88<o:p></o:p></span></p><p = class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>e-mail <a href=3D"mailto:Brian.Katz@xxxxxxxx">Brian.Katz@xxxxxxxx</a> = &lt;<a = href=3D"mailto:Brian.Katz@xxxxxxxx">mailto:Brian.Katz@xxxxxxxx</a>&gt;<o:= p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>web_theme: </span><span = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'><a href=3D"http://www.limsi.fr/Scientifique/aa/thmsonesp/"><span = lang=3DEN-GB>http://www.limsi.fr/Scientifique/aa/thmsonesp/</span></a></s= pan><span lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'><o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>web_group: </span><span = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'><a href=3D"http://www.limsi.fr/Scientifique/aa/"><span = lang=3DEN-GB>http://www.limsi.fr/Scientifique/aa/</span></a></span><span = lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'><o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-GB = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><b><span = style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>De&nbsp;:</s= pan></b><span = style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> AUDITORY - = Research in Auditory Perception [mailto:AUDITORY@xxxxxxxx <b>De = la part de</b> Dimitris Kosmidis<br><b>Envoy=C3=A9&nbsp;:</b> dimanche 7 = d=C3=A9cembre 2014 09:05<br><b>=C3=80&nbsp;:</b> = AUDITORY@xxxxxxxx<br><b>Objet&nbsp;:</b> Re: Wireless Audio for = Research<o:p></o:p></span></p><p = class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><div><div><p = class=3DMsoNormal style=3D'margin-bottom:12.0pt'>Hi = David,<o:p></o:p></p></div><p class=3DMsoNormal = style=3D'margin-bottom:12.0pt'>I don't have experience with streaming = audio wirelessly. But in case you want to avoid any problems altogether = you could try having a device wired to the loudspeakers outputting = sound, and a remote interface (e.g. your tablet) controlling the first = device.<o:p></o:p></p></div><div><p class=3DMsoNormal>Regards,<br = clear=3Dall><o:p></o:p></p><div><div><div><p class=3DMsoNormal = style=3D'margin-bottom:12.0pt'>Dimitris<o:p></o:p></p></div></div></div><= p class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><p class=3DMsoNormal>On = Sat, Dec 6, 2014 at 7:43 PM, Landsberger, David &lt;<a = href=3D"mailto:David.Landsberger@xxxxxxxx" = target=3D"_blank">David.Landsberger@xxxxxxxx</a>&gt; = wrote:<o:p></o:p></p><p class=3DMsoNormal = style=3D'margin-bottom:12.0pt'>Hi All,<br><br>I was wondering if anyone = had thoughts about wireless audio connections<br>for research.&nbsp; We = are running our spectral resolution task (SMRT;<br><a = href=3D"http://smrt.tigerspeech.com" = target=3D"_blank">smrt.tigerspeech.com</a>) on a small windows 8.1 = tablet.&nbsp; It would be nice<br>for the audio to be transferred = wireless to the speakers.&nbsp; I am<br>considered about degrading the = signal quality.<br><br>Any suggestions on how to do this without adding = signal noise or lossy<br>data compression?&nbsp; I understand bluetooth = is not acceptable.&nbsp; What<br>about&nbsp; using airplay, miracast, or = chromecast?&nbsp; Has anyone had luck /<br>experience with these = technologies for wireless PC audio streaming of<br>quality acceptable = for psychoacoustic research?<br><br>Thanks,<br>David<br><span = style=3D'color:#888888'><br>--<br>David Landsberger, Ph.D.<br>Assistant = Professor<br>Department of Otolaryngology<br>NYU School of = Medicine<br>550 1st Avenue NBV 5E5<br>New York, NY = 10016</span><o:p></o:p></p></div><p = class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></div></div></body></html> ------=_NextPart_001_0A8A_01D01212.CDF82F50-- ------=_NextPart_000_0A89_01D01212.CDF82F50 Content-Type: application/pkcs7-signature; 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http://www.auditory.org/postings/2014/
maintained by:
DAn Ellis <dpwe@ee.columbia.edu>
Electrical Engineering Dept., Columbia University