TrueRTA

TrueRTA provides you with a clear and real-time picture on everything you hear. This feature-rich spectrum analyzer gives you the possibility of setting up your very own audio measurement system. It works with all sorts of microphones and other audio equipment and it provides high quality readings on any audio signals. It is an excellent tool to have around, for anyone, from musicians to sound technicians.

Although a more powerful version of TrueRTA is available at a cost, the free version provides you with everything you need to get a good idea on how it works. The software is compatible with all popular Windows platforms and it doesn't have any special requirements.

The spectrum analyzer itself takes up most of the user interface and you can find various options all around it. If you have a microphone plugged in, you can simply click a "Go" button and the software will immediately display the sound frequencies in real time. Sounds can be measured across a large spectrum, from 10 Hz to 50 kHz and from -160 dB to 20 dB, at least with the free version.

If you are interesting in analyzing sounds in a specific range, you can increase or decrease the high and low limits of both frequency and amplitude. Additionally, you can change the RTA resolution to one or more octaves, change the speed tradeoff and make other fine tweaks. Another useful feature is the possibility of generating different waves, like sine, square, triangle, saw and others.

By default, the software displays an RTA spectrum analyzer, but you can switch to an oscilloscope mode if you want to. It is also possible to display the analyzer for the right, left or both channels. There are numerous options to explore, which is enough proof that TrueRTA can be a valuable asset to any sound engineer.

With TrueRTA on your computer, you can be well on your way to creating your own professional acoustic test setup.