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Post by billmac on Mar 23, 2012 16:54:15 GMT -5
The essence of Matt's response to me on that question: Hi Gil, "It is my understanding that this is exactly how the bass management will work with the XMC-1. However, because it is still in development this is subject to change". So there will be analog bass management and a DSP based bass management as well? Bill
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jamrock
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Post by jamrock on Mar 23, 2012 16:58:48 GMT -5
^^ Just responding to Bill's portion of that post. There will be auto and manual calibration options. You will also have the option of making manual adjustments to the auto calibration. You just can't beat that!
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Post by roadster on Mar 23, 2012 17:02:41 GMT -5
^^^^ Making "On the fly" adjustements of the sub is a MUST on any modern processor today, so many sources of music require different settings. It is a BIG plus and I already use it all the time on my Marantz.
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jamrock
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Post by jamrock on Mar 23, 2012 17:13:50 GMT -5
^^^^ Making "On the fly" adjustements of the sub is a MUST on any modern processor today, so many sources of music require different settings. It is a BIG plus and I already use it all the time on my Marantz. I don't think that TacT makes correction to the sub and the rest of the system separately. My reading (and I could be wrong) has lead me to believe that it makes a 20hz - 20KHz correction of the mains and subs as a whole. However, this is the first home theater implementation of TacT. Therefore, it could be implemented to work similar to Audyssey . BTW, where is that frigging White Paper that Emo promised?
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Pauly
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Post by Pauly on Mar 23, 2012 17:18:48 GMT -5
Yep, on the fly level adjustments definitely is a must for every pre/pro that buy from now on. It's one of the most useful features that you can have imo.
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Post by billmac on Mar 23, 2012 18:08:24 GMT -5
^^ Just responding to Bill's portion of that post. There will be auto and manual calibration options. You will also have the option of making manual adjustments to the auto calibration. You just can't beat that! Hey jam, My question about bass management was due to a response from an earlier post. Someone asked "Can I get the sub to play if I use analog inputs of the XMC-1, without going through an A/D conversion?" Someone had replied that yes they could. So that is why I'm asking if the XMC-1 will have analog bass management. Becuase if the XMC-1 does not have analog bass management (like the USP-1) then an A/D conversion will be needed to perform BM. I could be wrong in this assumption though . It would be great if the XMC-1 did in fact have analog BM which would be like the USP-1 if one wants a straight analog pathway. But I think I would be more interested in using TacT than being worried about additional A/D conversions. Bill
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Post by billmac on Mar 23, 2012 18:12:31 GMT -5
^^^^ Making "On the fly" adjustements of the sub is a MUST on any modern processor today, so many sources of music require different settings. It is a BIG plus and I already use it all the time on my Marantz. roadster, When you say on the fly adjustments do you mean the subs volume level? I do this quite often with my 886. I don't mess with any EQ settings as we know Audyssey does not allow that. Just as well as I would screw it up for sure . Bill
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Post by roadster on Mar 23, 2012 18:24:17 GMT -5
^^^^ Yes, only the sub volume level.
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jamrock
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Post by jamrock on Mar 23, 2012 18:30:56 GMT -5
I don't know that any sub correction allows for changes on the fly of EQ settings. Any change made will need to be 'saved' before it takes effect. So I think you are on the right track Bill that any 'on the fly" adjustment will be limited to the volume changes only. I'm only going from memory and the XMC-1 promises to have some surprises. So you never really know until we have the product in our racks ;D.
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Deleted
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Post by Deleted on Mar 23, 2012 18:55:28 GMT -5
I believe that the Velodyne Room Correction System allows for such on-the-fly corrections. And Velodyne are a very conscientious company and forward-thinking company. Whcih also brings to my mind: JUST WHERE IN THE HELL ARE THE WAAAAAYYYYYY OVERDUE EMO SUBS WITH THEIR VELODYNE-KILLING DSP FIRMWARE/SOFTWARE??? Those subs were promised over 3 years ago and since then Emo hasn't said d!ck about them. PLEASE stop over-promising and under-delivering....
C'mon, Big Dan, man-up and give us the straight scoop on these elusive little barkers - are you guys really doing them or are you just pulling our chains yet again??? WTF??
-RW- Don't make me get up out of this chair, son...
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jamrock
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Post by jamrock on Mar 23, 2012 19:20:32 GMT -5
Come to think of it, EQ corrections on the fly is an overkill for lack of a better term. Whether bass correction or room correction, the intention is to derive the best frequency response for the accoustic space (room). This should be a one time change for all sources. We can then adjust bass and/or treble in accordance with our musical taste. The idea that we change RCS per source is ridiculous and seems like "tweaking gone wild"
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Post by roadster on Mar 23, 2012 19:26:15 GMT -5
Come to think of it, EQ corrections on the fly is an overkill for lack of a better term. Whether bass correction or room correction, the intention is to derive the best frequency response for the accoustic space (room). This should be a one time change for all sources. We can then adjust bass and/or treble in accordance with our musical taste. The idea that we change RCS per source is ridiculous and seems like "tweaking gone wild" I totally agree, volume control is all that's needed, nothing more.
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Post by Tip on Mar 23, 2012 23:26:12 GMT -5
I don't think that TacT makes correction to the sub and the rest of the system separately. My reading (and I could be wrong) has lead me to believe that it makes a 20hz - 20KHz correction of the mains and subs as a whole. However, this is the first home theater implementation of TacT. The TacT TCS (Theater Correction System) has been in production for several years -- the current model is the TCS Mk 3. TacT measures each speaker and subwoofer separately, and then computes a correction filter for each that incorporates the crossover filter (low-pass for the subs, high-pass for the mains.) Since octaves are logarithmic, the lower frequencies need a greater frequency resolution than the higher frequencies. For example, 20 to 40 Hz is an octave and 2000 to 4000 Hz is an octave. So for 20 to 40 Hz the resolution needs to be a couple of Hz, while for 2000 to 4000 Hz the resolution can be an order of magnitude higher. The correction filter has a limited number of "taps", or coefficients in the FIR filter equation (i.e. number of frequency points it can alter.) Thus the pulses used to measure the low frequencies (subs) produce a filter with a higher frequency resolution, while the pulses used to measure the higher frequencies (mains) produce a filter with a lower frequency resolution for the limited number of taps. The mains measurement uses three pulses, one each for the high, mid, and low frequencies ("tick, tick, pop".) But only a single pulse is used for the lower frequencies of the subwoofers ("pop".)
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Post by roadster on Mar 24, 2012 7:46:10 GMT -5
^^^^ sounds simple enough to me....lol!
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Post by moparmudder on Mar 24, 2012 8:46:47 GMT -5
I think that eveyone is forgetting this is an "Emo Version" of Tact, so I would guess a greatly stripped down version when looking at the price of the XMC -vrs- the price of the Tact system. Just thinking people at setting them self up for a big let down thinking this will be a full blown Tact system.
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Post by G-Man on Mar 24, 2012 9:06:34 GMT -5
+1
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jamrock
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Post by jamrock on Mar 24, 2012 9:26:16 GMT -5
The Emo version of TacT DRC seems to be a matter of how it is implemented compared to how it is done in Lyngdorf's components. Not its effectiveness.
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Post by Tip on Mar 24, 2012 10:38:31 GMT -5
Just to clarity: TacT's room correction is not used in Lyngdorf components. Lyngdorf's room correction is "RoomPerfect" and operates more like Audyssey. Also TacT has copyrighted the acronym "DRC" as "Dynamic Room Correction" (similar to Dolby's "Dynamic Range Control"), not "Digital Room Correction". Confusing, yes?
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jamrock
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Post by jamrock on Mar 24, 2012 16:27:55 GMT -5
Just to clarity: TacT's room correction is not used in Lyngdorf components. Lyngdorf's room correction is "RoomPerfect" and operates more like Audyssey. Also TacT has copyrighted the acronym "DRC" as "Dynamic Room Correction" (similar to Dolby's "Dynamic Range Control"), not "Digital Room Correction". Confusing, yes? Doesn't Audyssey also uses the term dynamic room correction? Also, the point that I was trying to make rergarding the TacT version for Emo, based on Dan's description of what it will do, is exactly how it is described in the literature. So, it is simply implementing the system in a 7.1 component, not a watered down version as was implied. Otherwise, it would require a remake of a lesser version.
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Post by Dan Laufman on Mar 24, 2012 16:56:42 GMT -5
Hi all, The TacT 3e Theater Dynamic Room correction will be editable "on the fly". That is, you can modify the results of the TacT correction curve if you want to tweak it. You literally drag the EQ curve, via your tablet or computer interface, where you want it to go! Very cool.
You will also have "on the fly" sub level trim adjustments, along with the usual center and surround trims.
The correction in the XMC-1 is very powerful, and we believe it will be a real improvement over competing systems. Cheers, Dan
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