Subject: Re: otoacoustic emission recordings From: Matt Flax <flatmax(at)IEEE.ORG> Date: Fri, 28 Feb 2003 02:11:26 +1100Oh - OK, Thanks for the suggestion that I re-submit, D.M. I have been writing about the Lateral OC projections and their interaction with the afferents higher then the IHC. I know a majority of the work relating to OAEs has been with the Medial OC projections and their interactions with the OHC, however I believe that due to the innervation of the LOC efferents at the spiral ganglion, it is possible that response signals are shifted in frequency (which I believe happens with SOAEs and perhaps other OAEs ?). My point is this ... it is possible that the signal generated by the IHC/LOC interaction may be fed into the MOC and back to the OoCorti/Basilar system. Consequently I would like to check this theory with some OAE audio recordings. I assume recordings come in pairs of input and output, where the output represents the recorded OAEs and the input represents the stimulus signal presented to the ear. I have only read a few papers by Zwicker and others which mention these OAEs ... I don't have the resources to set these experiments up 'cause I am a PhD candidate towards the end of my course. guidance / signals appreciated, and thanks too ! Matt On Thu, Feb 27, 2003 at 08:07:20AM -0600, D. McFadden wrote: > greetings > > i take it that you mean you want to study the OAEs collected by someone > else, not that you want to collect OAEs > correct? > > further, i presume that you mean SOAEs, not CEOAEs > correct? > > well, yes, we do have spectra for a large number of ears > and those could be transformed back into time waveforms > > i suppose the primary question is what you plan to do with these SOAE waveforms > perhaps part of the answer would be for you to give me some idea of what > you have done in the past > perhaps you could send some reprints? > > > dm > > > Dennis McFadden > Ashbel Smith Professor Department of Psychology > in Experimental Psychology Seay Building > (512) 471-4324 1 University Station A8000 > FAX: (512) 471-5935 University of Texas > MCFADDEN(at)PSY.UTEXAS.EDU Austin, TX 78712-0187 > > > ============ > > >Hello, > > > >I am interested in looking at OAEs. > >I was wondering whether anyone had available input/output audio files > >for some OAEs ? > > > >thanks > >Matt > > > >-- > >http://mffm.darktech.org > > > >WSOLA TimeScale Audio Mod : http://mffmtimescale.sourceforge.net/ > >FFTw C++ : http://mffmfftwrapper.sourceforge.net/ > >Vector Bass : http://mffmvectorbass.sourceforge.net/ > >Multimedia Time Code : http://mffmtimecode.sourceforge.net/ > > -- http://mffm.darktech.org WSOLA TimeScale Audio Mod : http://mffmtimescale.sourceforge.net/ FFTw C++ : http://mffmfftwrapper.sourceforge.net/ Vector Bass : http://mffmvectorbass.sourceforge.net/ Multimedia Time Code : http://mffmtimecode.sourceforge.net/