Hi Roger,

On the contrary, that is indeed the explanation, you're a star, many thanks!

I finished that project (day 3 of a 14-day walking holiday) last night, but I loaded it up following your post. Here's what the mixer looked like:

And here's the detail of track 4:

That gave me pause, as I'm about -99 dB on the audio know-how scale and confess to never using the mixer in all these years! But the obvious solution was the Reset button, which fixed the problem.

I went back to see if I could work out why that central circle was curiously labelled 'L' instead of 'C' as I'd expect. After all, that's the speaker through which I was hearing that track. But I dragged things around and discovered 'C' was directly behind that central 'L'. I've no idea how track 4 was set differently to all the others, but should I interpret that setting as meaning all the sound that should have gone to LC was going to Centre?

Anyway, puzzle solved and I've learned something totally new, thanks.

Terry, East Grinstead, UK

Hi Terry

Greetings from Wales.

. . . . But I dragged things around and discovered 'C' was directly behind that central 'L'. . . . .

In 5.1 Surround sound L = the LFE speaker and C = the Centre speaker, they 'share' the same stereo channel and the same physical position on the sound stage ie depending on the speaker system, if they have both LFE and Centre speakers, they are either in the same box or two separate boxes positioned side by side or one above the other placed centre front between F R & L.

HTH

John EB

Hi John,

Thanks, understood. I’d have thought a different symbol to that ambiguous ‘L’ would have been better. Maybe ‘s’ for sub-woofer?