Measurement and Application

What is MTW+?

What is MTW+? ------------------------- Introduced in Smaart v8.5.0, MTW+ is a supercharged version of MTW that uses more FFTs across the measured frequency range and reduces gaps in the MTW calculation pipeline that may result in missing rapid transient events. MTW+ uses a Hamming data window, while MTW uses a Hann window. At this time, it is not possible to average MTW+ traces with traces derived from MTW/power-of-2 FFTs. This option is only available for Transfer Function measurements. M...

Can I transfer my saved configuration to another device/operating system?

Can I transfer my saved configuration to another device/operating system? ------------------------- Short answer: No While you can save your current settings to a configuration file (https://downloads.rationalacoustics.com/documentation/smaart-v8/Smaart-v8-User-Guide.pdf#page=64) to be recalled later, this file cannot be reliably transferred between devices or across operating systems. Some of the settings that are saved contain environment-specific variables relating to the system that Sma...

How to automatically launch Smaart on a schedule in macOS

How to automatically launch Smaart on a schedule in macOS? ------------------------- In some circumstances you may want to automate launching Smaart at a certain time on a schedule. One example would be that you need to log SPL starting at a certain time. If logging is enabled when Smaart is closed it will automatically start again on the next launch. For the computer savvy there are numerous ways to automate launching or quitting apps, but here’s a simple way to automate launching Smaa...

Does Smaart still work with Lake/Labgruppen/Lake Controller?

Does Smaart still work with Lake/Labgruppen/Lake Controller? ------------------------- SmaartLive 5.4 and the Analyzer Bridge The Dolby® Lake® Analyzer Bridge was a piece of software that allowed intercommunication between SmaartLive 5.4 and the Dolby Lake Controller. Analyzer traces from Smaart could be plotted in Lake Controller and various controls from LC could be displayed/manipulated in Smaart. Lake Controller v5.8 was the last version to support the old Analyzer Bridge. Smaa...

The RTA420 microphone is "pin 3 hot"; what does that mean?

The RTA 420 is "pin 3 hot"; what does that mean? ------------------------- The Rational Acoustics RTA 420 microphone (listed on our store here (https://www.rationalacoustics.com/products/ra-rta-420)) is Pin 3 hot. This means that the polarity of the microphone is reversed compared to other microphone standards. If you are using a single microphone, this should not cause any differences in your measurement. However, if you will be comparing a microphone that is not pin 3 hot to the RTA 420,...