Subject: psychoacoustic model for speech From: "Pinaki S. Chanda" <cpinaki@xxxxxxxx> Date: Wed, 13 Sep 2006 02:28:26 -0000This is a multipart mime message --Next_1158114506---0-202.54.124.151-20581 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Dear all,=0A I am looking for a psychoacoustic model at 8000 Hz samp= ling =0Afrequency intended for speech signal. =0A=0A Can anyone dire= ct me to some publication/standards/open source=0Acode regarding this ?=0A= =0AThanks and regards,=0APinaki=0A=0A=0AOn Thu, 07 Sep 2006 Stefan Kerber w= rote :=0A>A simple way to measure output volume is to measure the voltage a= t the input=0A>of the headphones (for a defined signal, like a 1kHz sine) a= nd calculate=0A>sound pressure level using the headphones' transfer functio= n. Doing it this=0A>way should also make it easy to change the headphones b= etween different=0A>locations.=0A>=0A>Greetings=0A>Stefan=0A>=0A>-----Urspr= ungliche Nachricht-----=0A>Von: AUDITORY Research in Auditory Perception=0A= >[mailto:AUDITORY@xxxxxxxx Auftrag von Robbin Miranda=0A>Gesendet= : Mittwoch, 6. September 2006 21:11=0A>An: AUDITORY@xxxxxxxx=0A>Betr= eff: measuring output volume from headphones=0A>=0A>=0A>Hello,=0A>Can any o= f you recommend a way to measure the output volume/decibel level=0A> from h= eadphones? We will be testing participants using auditory music and=0A>spe= ech stimuli on two different computers (depending on availability of the=0A= >two testing rooms) and would like to make sure that the output volume leve= l=0A>is equivalent at both locations. We do have a decibel meter (from Rad= io=0A>Shack), but this doesn't seem feasible to use with headphones.=0A>=0A= >Thanks,=0A>Robbin=0A>=0A>Robbin Miranda=0A>Interdisciplinary Program in Ne= uroscience=0A>Georgetown University=0A>3900 Reservoir Rd., NW=0A>Washington= DC 20007=0A>(202) 687-8449=0A --Next_1158114506---0-202.54.124.151-20581 Content-type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline <P>=0ADear all,<BR>=0A I am looking for a psycho= acoustic model at 8000 Hz sampling <BR>=0Afrequency intended for speech sig= nal. <BR>=0A<BR>=0A Can anyone direct me to some= publication/standards/open source<BR>=0Acode regarding this ?<BR>=0A<BR>= =0AThanks and regards,<BR>=0APinaki<BR>=0A<BR>=0A<BR>=0AOn Thu, 07 Sep 2006= Stefan Kerber wrote :<BR>=0A>A simple way to measure output volume is t= o measure the voltage at the input<BR>=0A>of the headphones (for a defin= ed signal, like a 1kHz sine) and calculate<BR>=0A>sound pressure level u= sing the headphones' transfer function. Doing it this<BR>=0A>way should = also make it easy to change the headphones between different<BR>=0A>loca= tions.<BR>=0A><BR>=0A>Greetings<BR>=0A>Stefan<BR>=0A><BR>=0A>= ;-----Ursprungliche Nachricht-----<BR>=0A>Von: AUDITORY Research in Audi= tory Perception<BR>=0A>[mailto:AUDITORY@xxxxxxxx Auftrag von R= obbin Miranda<BR>=0A>Gesendet: Mittwoch, 6. September 2006 21:11<BR>=0A&= gt;An: AUDITORY@xxxxxxxx<BR>=0A>Betreff: measuring output volume = from headphones<BR>=0A><BR>=0A><BR>=0A>Hello,<BR>=0A>Can any of= you recommend a way to measure the output volume/decibel level<BR>=0A> = from headphones? We will be testing participants using auditory music= and<BR>=0A>speech stimuli on two different computers (depending on avai= lability of the<BR>=0A>two testing rooms) and would like to make sure th= at the output volume level<BR>=0A>is equivalent at both locations. = We do have a decibel meter (from Radio<BR>=0A>Shack), but this doesn't = seem feasible to use with headphones.<BR>=0A><BR>=0A>Thanks,<BR>=0A&g= t;Robbin<BR>=0A><BR>=0A>Robbin Miranda<BR>=0A>Interdisciplinary Pr= ogram in Neuroscience<BR>=0A>Georgetown University<BR>=0A>3900 Reserv= oir Rd., NW<BR>=0A>Washington DC 20007<BR>=0A>(202) 687-8449<BR>=0A= =0A</P>=0A<br><br>=0A<a href=3D"http://adworks.rediff.com/cgi-bin/AdWorks/s= igclick.cgi/www.rediff.com/signature-home.htm/1507191490@xxxxxxxx?PARTNER=3D= 3"><IMG SRC=3D"http://adworks.rediff.com/cgi-bin/AdWorks/sigimpress.cgi/www= .rediff.com/signature-home.htm/1963059423@xxxxxxxx?OAS_query=3Dnull&PARTNER= =3D3" BORDER=3D0 VSPACE=3D0 HSPACE=3D0></a>=0A --Next_1158114506---0-202.54.124.151-20581--