Re: Dolby Digital's DRC

Hi, Thank you a lot for your reply.

> > Is possible to apply it with sox?
> Try something like
> -43,-37,-31,-31,-26,-26,-16,-21,0,-20.25
> for the transfer function. You can also use the --plot option to visualize it.
I didn't understood that compand can use more than two pair of in-out points. --plot also helped a lot. :)

This seems to me the correct compand
compand 0,0 -47,-43,-35,-35,-30,-25,-20,-21,0,-20 0 -100 6

> > Cut Range: -16 to +4 dB (20:1 ratio) > I suppose -20..0 dbfs
> No, the ratio means that an increase by 1 dB corresponds to an increase by 0.05 dB on the output side.
I meant that -16..+4db would be -20..0 dbfs, so each db pair in my post should be decreased by 4 to get the dbfs.

> mcompand is for applying different compression to various frequency bands, which is not what you want > to do here.
Now I understand that isn't what I need. Thank you again.

>Ulrich

Regards,
            Stefano