In many circumstances, a measurement setup need only be a straightforward, simple, two-channel configuration using only one microphone and making only one Transfer Function measurement at a time. Because Di can be quickly configured and everything can be controlled or monitored from the top level of the GUI, it is a quick and easy go-to tool for both experienced Smaart users as well as beginners. The RTA, Spectrograph, Transfer Function (Magnitude, Phase and Coherence) and delay/live Impulse Response measurements in Di provide all the measurement capabilities and power needed on a day-to-day basis.
Time domain filtering/input calibrationįor a large percentage of Smaart users, the capabilities and feature set of Smaart Di encompass virtually everything needed from Smaart as a tool. Access any 2 connected inputs at a time. Dual Sine Wave (independently user adjustable freq. Broadband or user-defined band-limiting. Integrated Dual-Mono Measurement Signal Generator Option to “break out” SPL meter into standalone, modeless, scale-able window. Built-In hardware device control for the Smaart IO USB interface. SPL, Leq, and Full Scale monitoring of any two connected inputs. Display data Linearly, Logarithmically, or as ETC (Energy Time Curve). Delay Tracking automatically measures and adjusts TF delay for every measurement cycle. Coherence weighted stored data averaging. Up to 1/48 th octave smoothing for both Phase and Magnitude plot displays. MTW (Multi-Time-Window) FFT provides better than 48 th octave resolution from 60Hz up and 1Hz resolution up to 140 Hz. One TF engine, configured based on the input pairs (Measurement / Reference). Real-Time Mode: Transfer Function (Frequency Response) 
Spectrum-over-Time with amplitude represented by color. Show Peak-Holds, Target Curves, display THD and calibrated plots. “Line-Over-Bands” view of RTA displays both raw and banded data. Fractional-Octave banding, up to 1/48 th octave resolution. While Smaart Di can access multichannel devices, it is designed to control and display only two standard Spectrum engines at any given time. Di is perfect for quick and precise measurements without the demands of Smaart v8’s multi-measurement, multi-mode, and multi-window complexity. In the spirit of simplicity, Di does not include a separate Impulse Response Mode. As you would expect, Smaart Di’s Spectrum and Transfer Function engines have all the same power and capabilities as those in the flagship version of Smaart. 
Now in its second generation, Smaart Di provides a nimble and quickly adaptable measurement environment with all critical configuration and control parameters accessible from a single intuitive user interface. Smaart Di ( Dual-Channel Interface) is the Two Channel Version of the Industry Leading, Dual Platform (Mac & PC), FFT Based Audio Analysis Software.
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