[Sursound] TetraMic help (re cal files)
Greetings Everyone, First, thanks to all who read or responded my previous posts--everyone's help and insight was appreciated. Second, as I continue my cochlear implant research, and creating virtual listening environments for 'real-world' testing of hearing-impaired listeners, I have made recordings of various places using my Core-Sound TetraMic. Now I have recordings using the TetraMic along with a TASCAM DR-680 and an Earthworks calibration mic (for analyzing levels and spectral content), but I've encountered a problem using the VVMic software. Len M. (of Core Sound) has been good to respond, but the problem is vexing. I've tried contacting David M. of VVMic fame, but no luck thus far getting a reply from him. The software works fine with A- (raw) or B-format files as long as I don't use the calibration files supplied with my TetraMic (these are the *.IIR files). I am hoping someone will look at the numbers below and compare them to their TetraMic cal files. I realize the files are unique to a given microphone, but if numbers are missing or far from what appears normal, this would suggest a problem with the cal files and not the software. Not all of the columns or rows are filled in, but that's the way they appear in VVMic for TetraMic. I could manually enter these numbers in the EQ settings, but I'm not sure whether that would fix the problem because the numbers may be outside of normal ranges. When using the cal files, the processing is quite slow, and the resulting wav files, when viewed in a basic DAW (time-amplitude window), show a wild, exponential-looking function that shoots off of the window. Note: The wave file doesn't appear like a clipped signal. Many thanks for any help here (or maybe somebody knows how to get in touch with David McGriffy?). Best regards, Eric Cal values shown below (and I hope the formatting stays intact when viewed in email): LFU RFD LBD RBU Gain W 1.6 1.6 0.0 1.8 Gain X 0.0 2.5 2.0 2.8 Gain Y 0.0 2.5 2.0 2.8 Gain Z 0.0 2.5 2.0 2.8 EQ F 4500 1 1 1 EQ W 1.5 15.9 15.9 15.9 EQ G 4.5 4.0 2.0 5.0 W -5.0 X 0.0 Y 0.5 Z 0.0 -- next part -- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20120317/bd94f3d7/attachment.html> ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] TetraMic help (re cal files)
Eric, Here's my TetraMic cal: sens 0.50.30 0.4 ; W capsule sens vsens 0.20.50 0 ; XYZ EQ 0.70 0.40 ; cap EQ EQfreq 120 0 160 0 EQbw 300 0 200 0 W -8.3 ; cardioids -7.7dB Mk4 -14dB X Y 0 Z I have no idea what the numbers represent but your EQ F, W and G are way different to mine. Without knowing what they represent there's no way to know if it is significant. Bill On 17/03/12 10:40 a.m., Eric Carmichel wrote: Greetings Everyone, First, thanks to all who read or responded my previous posts--everyone's help and insight was appreciated. Second, as I continue my cochlear implant research, and creating virtual listening environments for 'real-world' testing of hearing-impaired listeners, I have made recordings of various places using my Core-Sound TetraMic. Now I have recordings using the TetraMic along with a TASCAM DR-680 and an Earthworks calibration mic (for analyzing levels and spectral content), but I've encountered a problem using the VVMic software. Len M. (of Core Sound) has been good to respond, but the problem is vexing. I've tried contacting David M. of VVMic fame, but no luck thus far getting a reply from him. The software works fine with A- (raw) or B-format files as long as I don't use the calibration files supplied with my TetraMic (these are the *.IIR files). I am hoping someone will look at the numbers below and compare them to their TetraMic cal files. I realize the files are unique to a given microphone, but if numbers are missing or far from what appears normal, this would suggest a problem with the cal files and not the software. Not all of the columns or rows are filled in, but that's the way they appear in VVMic for TetraMic. I could manually enter these numbers in the EQ settings, but I'm not sure whether that would fix the problem because the numbers may be outside of normal ranges. When using the cal files, the processing is quite slow, and the resulting wav files, when viewed in a basic DAW (time-amplitude window), show a wild, exponential-looking function that shoots off of the window. Note: The wave file doesn't appear like a clipped signal. Many thanks for any help here (or maybe somebody knows how to get in touch with David McGriffy?). Best regards, Eric Cal values shown below (and I hope the formatting stays intact when viewed in email): LFU RFD LBD RBU Gain W 1.6 1.6 0.0 1.8 Gain X0.0 2.5 2.0 2.8 Gain Y0.0 2.5 2.0 2.8 Gain Z0.0 2.5 2.0 2.8 EQ F4500 11 1 EQ W1.515.9 15.915.9 EQ G 4.5 4.0 2.0 5.0 W -5.0 X 0.0 Y 0.5 Z 0.0 -- next part -- An HTML attachment was scrubbed... URL:<https://mail.music.vt.edu/mailman/private/sursound/attachments/20120317/bd94f3d7/attachment.html> ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] TetraMic help (re cal files)
I'm copying my calibration file below - I notice that mine makes explicit reference to the .iir files, whereas the one you copied does not - maybe that's it? cheers, j ; Settings for TetraMic SN2180 sens5 2 0 1.5 ; W capsule sens vsens 4.5 2.3 0 0.2 ; XYZ EQ 3 0 0 2 ; cap EQ EQfreq 1 0 0 4000 EQbw200 0 0 3000 W -8.7; cardiods -7.7dB Mk4 -14dB X Y Z ; EQ LF 25 250 ; pole zero Shelf below 120 to 25Hz W48 W48.iir ; the A-B IIR filters W44 W44.iir W88 W88.iir W96 W96.iir Vel48 Vel48.iir Vel44 Vel44.iir Vel88 Vel88.iir Vel96 Vel96.iir On Mar 17, 2012, at 1:40 PM, Eric Carmichel wrote: > Greetings Everyone, > First, thanks to all who read or responded my previous posts--everyone's help > and insight was appreciated. > Second, as I continue my cochlear implant research, and creating virtual > listening environments for 'real-world' testing of hearing-impaired > listeners, I have made recordings of various places using my Core-Sound > TetraMic. Now I have recordings using the TetraMic along with a TASCAM DR-680 > and an Earthworks calibration mic (for analyzing levels and spectral > content), but I've encountered a problem using the VVMic software. Len M. (of > Core Sound) has been good to respond, but the problem is vexing. I've tried > contacting David M. of VVMic fame, but no luck thus far getting a reply from > him. The software works fine with A- (raw) or B-format files as long as I > don't use the calibration files supplied with my TetraMic (these are the > *.IIR files). I am hoping someone will look at the numbers below and compare > them to their TetraMic cal files. I realize the files are unique to a given > microphone, but if numbers are missing or far from what appears normal, this > would suggest a problem with the cal files and not the software. Not all of > the columns or rows are filled in, but that's the way they appear in VVMic > for TetraMic. I could manually enter these numbers in the EQ settings, but > I'm not sure whether that would fix the problem because the numbers may be > outside of normal ranges. When using the cal files, the processing is quite > slow, and the resulting wav files, when viewed in a basic DAW (time-amplitude > window), show a wild, exponential-looking function that shoots off of the > window. Note: The wave file doesn't appear like a clipped signal. > Many thanks for any help here (or maybe somebody knows how to get in touch > with David McGriffy?). > Best regards, > Eric > Cal values shown below (and I hope the formatting stays intact when viewed in > email): > > LFU RFD LBD RBU > Gain W 1.6 1.6 0.0 1.8 > Gain X0.0 2.5 2.0 2.8 > Gain Y0.0 2.5 2.0 2.8 > Gain Z0.0 2.5 2.0 2.8 > EQ F4500 11 1 > EQ W1.515.9 15.915.9 > EQ G 4.5 4.0 2.0 5.0 > W -5.0 > X 0.0 > Y 0.5 > Z 0.0 > -- next part -- > An HTML attachment was scrubbed... > URL: > <https://mail.music.vt.edu/mailman/private/sursound/attachments/20120317/bd94f3d7/attachment.html> > ___ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound > ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] TetraMic help (re cal files)
--On 17 March 2012 16:35 -0400 Jascha Narveson wrote: I'm copying my calibration file below - I notice that mine makes explicit reference to the .iir files, whereas the one you copied does not - maybe that's it? The difference is that you are showing the contents of the file, whereas the original message shows what VVMic displays in the "grid" display (which has to be selected as an alternative to the "graph" display of the parameters). My calibration information looks generally similar to those posted. Paul -- Paul Hodges ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] TetraMic help (re cal files)
Right - Eric corrected me about that a little bit ago. I just sent him a list of the parameter settings from my VVTetraVST plug-in set to my calibration file - if it's of interest to anyone else on this list, I can post it here, too. cheers, j On Mar 17, 2012, at 5:14 PM, Paul Hodges wrote: > --On 17 March 2012 16:35 -0400 Jascha Narveson wrote: > >> I'm copying my calibration file below - I notice that mine makes explicit >> reference to the .iir files, whereas the one you copied does not - maybe >> that's it? > > The difference is that you are showing the contents of the file, whereas the > original message shows what VVMic displays in the "grid" display (which has > to be selected as an alternative to the "graph" display of the parameters). > My calibration information looks generally similar to those posted. > > Paul > > -- > Paul Hodges > > > ___ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound > ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
