FFT Channel Colours?

[petewilson]

I have recorded some test tones from a test LP from my turntable - to assist in setup.

I gave a file of a 1KHz stereo tone to WavePad (192K/24) and had it FFT a portion.

Worked fine.

The levels at 1KHz are closely matched (< 1 dB)

There's a substantial difference at 2KHz - a distortion product. It's 5dB. This is probably due to anti-skating force being set wrong.

So the question is - which of the red and blue traces is left and which is right? Blue is always lower in amplitude than red.

Many thanks!