Re: [ecasound] cascading LADSPA plugins with ecasound

--- On Mon, 7/21/08, Jeremy Hall <jehall@email-addr-hidden> wrote:

> From: Jeremy Hall <jehall@email-addr-hidden>
> Subject: Re: [ecasound] cascading LADSPA plugins with ecasound
> To: ecasound-list@email-addr-hidden, sergstesh@email-addr-hidden
> Date: Monday, July 21, 2008, 6:25 AM
> if I understand you correctly, you want the loop device.
> Beware this MAY cost you one period, so make sure that your
> buffer size is small. I don't know if this restriction
> has been relaxed, but at one time it was true.
>
> _J
>
> >>> Sergei Steshenko <sergstesh@email-addr-hidden>
> 7/21/2008 8:29 AM >>>
> Hello All,
>
> ecasound manual gives an example of LADSPA plugin usage,
> however, if I am
> not missing something, it's an example with a single
> plugin.
>
> Suppose I have two LADSPA plugins with the following data
> inputs and outputs:
>
> 1) plugin_1:
>
> in1_L, in1_R,
> out1_1L, out1_2L, out1_1R, out1_2R
>
>
> 2) plugin_2:
>
> in2_1L, in2_2L, in2_1R, in2_2R,
> out2_L, out2_R.
>
> The plugins are meant to be connected this way:
>
> out1_1L -> in2_1L,
> out1_2L -> in2_2L,
> out1_1R -> in2_1R,
> out1_2R -> in2_2R.
>
> in1_L, in1_R are meant to be the two inputs (left, right)
> inputs of
> the resulting cascaded plugin, out2_L, out2_R are meant to
> be the two
> outputs (left, right) of the resulting cascaded plugin.
>
> Is it possible to do such a thing with ecasound ?
>
> Thanks,
> Sergei.
>

Thanks, I'll check the loop device.

I am going to use ecasound only as LADSPA host, not for realtime recording,
but just for listening, so I probably don't care about that one period.

To avoid xruns I'll set buffer to be 4096 samples anyway.

Regards,
  Sergei.

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Received on Mon Jul 21 20:15:02 2008