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Import any audio file into JRiver and click play. Ensure audio is working.
With audio playing, go to Player->DSP Studio->Vividizer to open Vividizer interface.
While audio is playing, click “L” or “R” in the Vividizer interface. This will start playing tuning noise on the left or right speaker respectively. [Note: audio must be playing to allow pink tuning noise to start. The tuning noise will override the audio playing from the selected track.]
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