Re: [SoX-users] sinc/bandreject questions

[Erich E. <er...@ec...>]

Hi,

it looks, like sinc does something, however, the rolloff is too flat to
notice. Try

sox -n -n synth 3 sine 500 stat sinc 600-400 stat

You can see, that the rms amplitude decreases.
One should be able to increase the attenuation by giving a larger value
via "-a", however this didnt' work for me for values except 120 (the
standard) :-/

greetings,
Erich

Am 01.07.2015 um 05:23 schrieb forget color:
> I'm confused by the results of the sinc command. For example, when
> trying to implement a bandreject effect:
> 
>   play -n synth 3 sine 500 sinc 600-400
> 
> I hear a tone. But if I use bandreject directly:
> 
>   play -n synth 3 sine 500 bandreject 500 100
> 
> I hear nothing (except the attack). Why isn't sinc working?
> 
> Thanks!
> 
> 
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