- #RATIONAL ACOUSTICS SMAART 7 QUICK START GUIDE SOFTWARE#
- #RATIONAL ACOUSTICS SMAART 7 QUICK START GUIDE WINDOWS#
Low frequency boundary effects, sub alignment. Review of earlier stuff, if necessary, before moving on Session 8. Magnitude threshold and coherence blanking. Basic transfer function measurements.įurther transfer function measurements. Getting up and running, input level metering. Single channel, dual channel, multichannel. In this particular instance we are in Live IR Mode, so Smaart added a third window at the top of the screen with amplitude versus time difference between the two channels.Course itinerary - subject to change. The bottom also shows "Coherence" in red a discussion of coherence is beyond the scope of this article, but it points toward reliability of accumulated data. The middle trace green shows frequency versus phase difference while the bottom window shows magnitude green versus frequency difference between reference and measurement mic. Smaart has an automatic delay finder that calculates delay, even while you are moving the mic around the room. To maintain accuracy, there must be compensation for the delay. This comparison involves a delay between the two signals the Reference signal does not travel through the air, and therefore reaches Smaart faster. This was measured by generating pink noise from Smaart's signal generatorsplitting it and sending it directly into Smaart on the Reference channel and also to the monitors.Ī measurement mic picked was connected to the Measurement channel.
Smaart's Transfer Function allows comparison between a reference signal and the post-process version of that signal in an audio system, measurements which reveal interesting traits.Īn example is shown in figure 4, the Transfer Function of a monitor system in a small control room. It's a very useful tool, especially in venues where the neighbors make noise complaints. A "logging" feature creates a text file of these measurements showing minimum and maximum SPL as well as the actual SPL at a given date and time. Īll of the screens look great and are easy to read, but one thing I did not like is that when you zoom in or out, the scale of the screen changes, but the resolution of the grid does not i. Note that the Control Strip on the right detailed in figure 2 displays the averaging but not the weighting, which I consider essential. One of the few gripes I have with Smaart is that weighting is neither displayed nor accessible from the Control Strip, though it is indicated in the trace area.
#RATIONAL ACOUSTICS SMAART 7 QUICK START GUIDE WINDOWS#
It'd be nice if you could tile the screen into separate windows for each trace e. Active channels are viewed "overlay" style clicking on an input in the Control Strip brings its trace to the front of a window. Inputs are organized and added into Groups under the Group Manager, where you'll find parameters including averaging and weighting. Smaart played very well with my Digi R at sample rates of Sometimes Smaart would recognize the Traveler, and other times - typically after changing the sample rate - it would not. You can then set sample rate, bit-depth 16 or 24 and apply your own names to the inputs and outputs nice for managing multi-channel systems. Smaart's primary modes Real Time and Impulse Response include time and frequency domain measurements, but first you need to set up your hardware in the audio dialogue. A major change is that this version supports simultaneous measurement of multiple channels. Rational Acoustics incorporated many improvements to the interface of Smaart v7. Reading these documents while following along with your system can cut down the learning curve, and since there's a lot to learn about Smaart, this idea is… well… smart. If you've never used Smaart, it's worthwhile reviewing the resources available from the Rational Acoustics web site, particularly the PowerPoint presentation and basic setup guide. The latest revision of Rational Acoustics' Smaart is v7.
#RATIONAL ACOUSTICS SMAART 7 QUICK START GUIDE SOFTWARE#
Editor's Note: Steve submitted this as his regular "On the Digital Edge" column for the January issue of FOH but, as it is a pretty extensive look at the nuts and bolts of a much-used software program, we are running it as a Road Test instead.