… and de-emphasis on playback, established by the Recording Industry Association of America. Figure 1 shows the RIAA equalization curve for playback of vinyl records. To test a phonograph preamplifier, you would…
… builders.
Adding a .NET operation to the VEE program.
A simple sample program written in VEE is shown below. It does the following:
Opens APx500 with the application window visible.
Turns off the…
… 48 kHz.
Once the .wav file is created, you can import it into the DigitalGenerator of the SYS-2722 as shown in the figures below.
Figure 1 Importing an arbitrary waveform into the digital generator.
Figure…
…e graph (Figure 4). It displays results for each of the analog input channels enabled in the APx software. As shown, it also retrieves the channel labels from the system (in this case, “Left” and “Right”).
Figure 4.…
… can use the LabVIEW Path to String function to convert a LabVIEW file path to the necessary string, as shown in the modified version of your VI below. The modified example also uses the LabVIEW File Dialog VI to…
… used to set arbitrary decibel reference values. For example, you could set dBrA to 1.0 μV, as shown below and then select dBrA as the units in the Analyzer meter or Function meter. In the figure…
… that can be invoked by the command line, the process can easily be automated.
In the example shown in Figure 2, we are using a third party program called Goldwave to play a .wav file containing an audio…
… players and their associated headphones, according to British Standard / European Norm 50332. Also shown is how to use the APx Portable Audio Player / Portable Headphone Test...
… APx585/586, the simplest way to add the external resistor is by inserting a BNC-Tee and adapters as shown in Figure 1. For improved noise shielding, a metal shell tied to the connector shield should enclose…
