Re: [SoX-users] ladpsa plugins with more than one audio input

[Peter P. <pet...@fa...>]

Hi list,

* Peter P. <pet...@fa...> [2015-12-17 22:38]:
> Hi list,
> 
> I tried to use Sox's ladspa effect, and am getting the message
> 	sox FAIL ladspa: can't use a plugin with more than one audio input port
> which corresponds with the manpage of SoX v14.4.1 telling me that 
> 	Only plugins with at most one audio input and one audio output port can be used.
> What could be a good way to determine which ladspa plugins lie within
> that restriction, other than trial and error?
> 
> Is there a specific reason why only plugins with at most one audio input
> and one audio output port are supported? Possibly because otherwise
> routing might become ambiguous?
I am answering this one to myself. It seems that Eric Wong worked on
multiport support for sox in 2012, according to this thread:
http://sourceforge.net/p/sox/mailman/message/29302146/

I am curious if these changes made it into the main SoX branch at some
point, and into which version? I suppose it must be v14.4.2, which is
not yet available in Debian testing.

thanks for any comments on this one,
P