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Junior Varsity
X32 Discussion
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<blockquote data-quote="Simon Eves" data-source="post: 117910" data-attributes="member: 4463"><p>Dual-Channel Analyzer Setup with X32?</p><p></p><p>So I asked this question in a post with several other questions a few weeks ago, but I don't think anyone picked up on it, so I'm asking again.</p><p></p><p>I am using my X32 Firewire interface for SMAART (just the demo for now) for tuning the PA for my upcoming musical theatre production.</p><p></p><p>I have the board set up with simple LR mixing, routing L to Matrix 1, R to Matrix 2, and L+R to Matrix 3 (nominally for front fill, if it turns out I have room for those speakers) and the Matrixes routed to Analog Outs 14-16 and thence to the speakers, with the intention of doing the room and speaker corrective EQ in the Matrices.</p><p></p><p>For measurement purposes I would probably patch Main L to all three Matrixes, one at a time.</p><p></p><p>I bring the measurement mic into a spare channel and then send the pre-everything direct out of that channel to Card Out and select that computer input as Channel 1 of the Analyzer.</p><p></p><p>Presumably I need to send the plain pre-Matrix (and hence pre-corrective-EQ) Main L to Channel 2 of the Analyzer, but...</p><p> </p><p>Is it correct to simply route this directly and digitally (via a P16 out to get it into a sensible place on the Card Outs)...?</p><p> </p><p>Or should I route Main L to a spare Analog Out and loop that back into another spare channel (and then route that channel to Card Out, the same as the measurement mic one) with a (short) XLR.</p><p></p><p>Intuitively, I am thinking that the latter is more correct, since it will include the mixer's analog I/O (D/A, pre-amp, A/D) in the reference path, which will cancel out their (presumably equal but unknown) effect on the physical speaker output and (presumably more critically) the measurement mic input.</p><p></p><p>I'm also sure it will make very little difference which method I choose, certainly not enough to improve the results, but the engineer in me just wants to know! <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile :)" data-smilie="1"data-shortname=":)" /></p><p></p><p>Thoughts, please.</p></blockquote><p></p>
[QUOTE="Simon Eves, post: 117910, member: 4463"] Dual-Channel Analyzer Setup with X32? So I asked this question in a post with several other questions a few weeks ago, but I don't think anyone picked up on it, so I'm asking again. I am using my X32 Firewire interface for SMAART (just the demo for now) for tuning the PA for my upcoming musical theatre production. I have the board set up with simple LR mixing, routing L to Matrix 1, R to Matrix 2, and L+R to Matrix 3 (nominally for front fill, if it turns out I have room for those speakers) and the Matrixes routed to Analog Outs 14-16 and thence to the speakers, with the intention of doing the room and speaker corrective EQ in the Matrices. For measurement purposes I would probably patch Main L to all three Matrixes, one at a time. I bring the measurement mic into a spare channel and then send the pre-everything direct out of that channel to Card Out and select that computer input as Channel 1 of the Analyzer. Presumably I need to send the plain pre-Matrix (and hence pre-corrective-EQ) Main L to Channel 2 of the Analyzer, but... Is it correct to simply route this directly and digitally (via a P16 out to get it into a sensible place on the Card Outs)...? Or should I route Main L to a spare Analog Out and loop that back into another spare channel (and then route that channel to Card Out, the same as the measurement mic one) with a (short) XLR. Intuitively, I am thinking that the latter is more correct, since it will include the mixer's analog I/O (D/A, pre-amp, A/D) in the reference path, which will cancel out their (presumably equal but unknown) effect on the physical speaker output and (presumably more critically) the measurement mic input. I'm also sure it will make very little difference which method I choose, certainly not enough to improve the results, but the engineer in me just wants to know! :) Thoughts, please. [/QUOTE]
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