I created a stereo tone, shown below. It does not look like the screen you had, which was red. I clicked Save As, but the window says it is a Mono file. I created it in Stereo. I changed it to Stereo and clicked OK. I clicked File, New, Audio File, Mono. A window opened but there is no signal. It did not give me the chance to select a frequency or anything else. So, the same thing happened as before. There is no signal generated, no duration. So, it is still no sale.
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