> convoLV2 is an LV2 plugin to convolve audio signals without additional
> latency.
>
>
https://github.com/x42/convoLV2
>
https://github.com/x42/convoLV2/tarball/v0.2
>
> convoLV2 is in an early stage of development and is not yet suitable for
> users. However, it serves as a working example of an LV2 plugin with
> block length restrictions, in this case:
>
> * Maximum block length must be passed as an instantiate option
> * Block length must always be a power of 2 (a required feature)
>
> See the links in the README and on the github page for details about
> these features. The first should be trivial to implement in any host,
> which is highly recommended. The second may be difficult or impossible,
> though it is trivial in hosts that run plugins directly on the Jack
> cycle[1] or process files with fixed parameters.
>
> This plugin is intended to provide latency-free synchronous convolution,
> which inherently requires these restrictions. It does not, and will not
> ever, do latent audio buffering in the plugin itself (though a generic
> wrapper to do so is a good idea...)
>
> This release is known to work in Jalv 1.2.0. If you're feeling
> adventurous and remove the power of 2 feature requirement from the data,
> it will also work in Ardour3. Sometimes. Maybe.
>
> convoLV2 is jointly developed by Robin Gareus (who wrote the entire
> plugin before LV2 could properly support it) and David Robillard (who
> invented/implemented the missing LV2 pieces).
>
> We hope that convoLV2 will eventually be as fully-featured as IR.lv2
> without resorting to kludges that violate the LV2 specification.