Sound check came and went without any need for PA adjustment and we took dinner. We listened to some multitrack show audio previously recorded with Reaper to check our system tuning.
#Truerta impulse delay test Pc
TrueRTA turns your PC into a powerful audio test system normally seen only in. Since the entire band is on IEMs, there was no monitor mixes to measure and correct. ARTA impulse response measurement, for real-time spectrum analysis and. This is the complimentary EQ curves for the Mains, Front Fills and Delays. We reduced that frequency area a bit more in the Main L/R processing to balance out the response on the floor and the balc. Note that all 3 measurements show too much LM content in the 150hz to 400hz range. This trace includes (3) measurements with the mic at the balcony rail, mid way up in the seating and another at the back of the balcony. With plenty of time left, I placed a second mic in the balcony to see if the changes we made to the mains to correct the response on the floor were satisfactory upstairs. We actually muted the Main L side and unplugged one of the front fills. We used the impulse response measurement to set the delay time between the front fills and the main L/R. We also did a bit of complimentary EQ to the front fills but I didn’t save a snapshot for that measurement. Next we EQed the underbalc delay speakers. We made a few more adjustments after the measurement. Note there is an abundance of LM content between 150hz and 250hz. When we combined the Main L/R and the subs we got this trace. The second trace was after a reduction at the send to the subs to balance them out with the mains. what time delay occurs through the BFD1100P The 8024 takes about 1.6ms (from memory) to process the signal so the bass arrives 1.6ms late - like moving the woofer back 0.6m or so I think I worked out. Notice the LF level was quite a bit above the 0db line.
#Truerta impulse delay test pro
Good links on aliasing - thanks But I was referring to the test signal digitally generated by Audacity at 192 kHz and imported into Pro Tools at 96 kHz for playback' on the first track. Next we measured the subs (all 8 of them). its unlike the ringing associated with imperfect impulse responses or acoustic resonance. I forgot to take any snapshots during this process. We did some complimentary EQ to the mains and moved the mic around a bit to make sure the change helped universally.
We started out my measuring the Main R array on axis. Subs – (8) Sound Bridge Xyon subs (4) double 18″ cabinets PER SIDEĭelay row 1 – (2) EV boxes just behind FOH mix positionĭelay row 2 – (4) EV boxes further under balconyįront Fills – (2) EV XW-12 wedges on end cross firing Main R – (8) box Sound Bridge Xyon 7208 XY array Main L – (8) box Sound Bridge Xyon 7208 XY array Note that there is more processing inherent to the amps that we didn’t touch: The house audio engineer Coy provided us with the following inputs into the house sound system and the house EQs were flattened so we could make all adjustments at the X32 console.
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