… display to help pinpoint specific problems such as clipped words or dropouts. Additional results show average delay, delay vs. time, and the reference and the acquired waveforms.
The PESQ/POLQA Average…
… 2 and 1 ohm loads. If in doubt, run the measurement without them first.
Results: This tab will show the measurement data after running the Power Cube measurement. From this page, you may export the data…
… used.
The spectrum of a signal containing discrete tones combined with band-limited noise is shown in Figures 1 and 2. In Figure 1, the spectrum was measured without an FFT window (window = None). Note…
… card would be connected directly to an FM modulator/RF generator instead of the waveform recorder shown in Figure 2.
Figure 2. Block diagram illustrating the process to create an RDS encoded…
… YouTube Channel
Video Description: In this brief video, Eric Schultheis introduces APx500 Flex, showcasing how it enables budget-friendly audio testing for speakers, microphones, wired headphones, and…
… Name dialog.
Next, the utility will prompt you to select and configure a turntable (Figure 4). As shown, a simulated turntable is available for demonstration purposes.
Figure 4. Turntable configuration…
Using version 5.0.1 of APx500 software (released April 2, 2019), users can configure the analog generator to stay in a fixed output range. This is especially useful for testing acoustic devices, and
… RMS level of a signal from the FFT by integrating the power spectral density. This equation is shown as (2), below.
(2)
where L = RMS level pi = power spectral density of FFT bin i n = the total…
