[Translators] what is the sense of "clean effects" in audio menu ?

[Christophe Mutricy]

On Thu, Dec 31, 09 at 20:32 +0200, Cristian Secară wrote:
> I receive a DVB-C program (Universal) which contains two audio
> streams. The text under the Audio menu -> Audio Tracks has three
> positions:
>   Disable
>   clean effects - [Polski]
>   clean effects - [Română]
> For for a reason I don't know, what on other programs is shown as
> "Track x" here is called "clean effects".
> 
> I don't really care about the reason, but I am not sure what is the
> correct sense on this menu:
> - is this an action ? i.e. something like "click this in order to
> clean the effects" (what effects ?)
> - is this a status report ? i.e. something like "these are some clean
> effects" (again, what effects ?)
> 
> This string is in the .po file and I am not sure if I have translated
> correctly.