[LAD] crosstalk between jack clients/ports?

[Gordonjcp]

On Wed, May 27, 2015 at 10:32:01AM +0200, Vaclav Mach wrote:

> I want to avoid the echo and I have two ideas where the problem can be:
> 1) there is a crosstalk between jack ports/clients
> 2) there is a crosstalk in my HW (mainboard sound device with
> intel_hda driver)

Most likely the latter.  Check you haven't got the mix parameter turned up.

Try a different (external?) soundcard.

-- 
Gordonjcp MM0YEQ