The screen shot below shows TrueRTA evaluating the performance of the E-MU 0404 USB sound system with a 1kHz sine wave where the 1 kHz distortion components are seen to be below -100 dB (i.e., less than 0.001%). The latter settings are appropriate for highly accurate frequency response measurements. Longer samples provide increased low frequency resolution with the tradeoff of slower updates. The size of the waveform sample is variable so that shorter samples can be used where a high frame rate is required, as in sampling live music.
Plus, you can easily generate various types of signals including Pink noise signal. Then add a measurement microphone and USB interface and you have a full audio/acoustic test setup. In this software, you can view a graph of what signal you are hearing in real-time. TrueRTA Downloads Create your own audio measurement system starting with TrueRTA software and your Windows PC.
#Truerta download generator#
The audio spectrum analyzer shows the changing spectrum of live input signals up to 48kHz (half the maximum sampling frequency). TrueRTA is a free Pink noise generator as well as a spectrum analyzer software for Windows. TrueRTA’s audio spectrum analyzer software shows you a detailed picture of what you’re hearing in real-time, that is, as it happens.
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