On Fri 13 January 2006 01:57, P Floding wrote: > JJZolx Wrote: > > I've added the following comment to bug/request #1976. Hopefully it > > would cover all needs in this issue: > > > > > > If it's important to you, then vote for the bug. Don't just CC > > yourself. By voting you automatically get CC'd with all new comments > > and changes to the bug. > > > > http://bugs.slimdevices.com/show_bug.cgi?id=1976 > > JJZolx, thanks for your addition! I will vote for it, of course! > > Regarding some of the other comments above: > > Yes, I'm talking about absolute phase, not phase error between left and > right channel -if you can't heat that, you have a seriously poor system, > or hearing, as that totally defocusses voices, for example!
There is a school of thought that says that the fact that the inversion of a some steady state non-symmetric signals being audibly different (which appears to be the most common proof of absolute phase being important) is proof that loudspeakers are not quite as linear and symetrical as they should be so maybe with a "perfect system" it would be a different story? (I jest slightly) > About the comment on instruments being pointed downwards: It doesn't > matter for this issue at all, since the microphone would be positioned > in the direction the listener would be, and hence the microphone will > receive the polarity that the listener would receive. > > For close-micked multimicrophone recordings, polarity switching may not > make any difference. However, I have noticed that even on some studio > recordings it can still make a difference. Perhaps all tracks were > recorded correctly, but some late stage in the mixing/mastering inverts > the ready-mixed signal inadvertently. I would be amazed if any multi-microphone recording (even so-called time-aligned multi-mic classical recordings) came anywhere close enough to be phase coherent in themselves so any improvement would be due to chance psycho-accoustic affects rather than any "absolute correctness". > It is true that you system has to be pretty good to hear the > difference. I had difficulty hearing it before i got the TacT RCS. I > imagine headphones would do the job at a lower cost, however. Just out of interest - are you switching your phase before you go into the TacT or after (ie on the room corrected signal)? Do you have an option on this? I would be very interested to know if there is a difference on your system. I could imagine that the room specific processing that the TacT performs on the digital signal would be much more sensitive to absolute phase than the signal from the source that is being fed into the processor. Alex _______________________________________________ Discuss mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/discuss
