[LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution Reverb

Giuseppe Zompatori siliconjoe at gmail.com
Sun Feb 27 04:03:57 UTC 2011


2011/2/26 Stefano D'Angelo <zanga.mail at gmail.com>:
> 2011/2/26 Olivier Guilyardi <list at samalyse.com>:
>> On 02/26/2011 06:45 PM, Stefano D'Angelo wrote:
>>
>>>> Something like 100k-200K could be fine in my case, at the condition that adding
>>>> LV2 support provides a real benefit in terms of functionality.
>>>
>>> This depends on what you are using it for and how. Being decentralized
>>> & extensible, you could also use it to make coffee. :-)
>>
>> Heh :) Well, right now, I'm more wondering about what ui:AndroidUi could be.
>>
>> Aside, in the ui ext docs there's this example which contains ui:binary, but I
>> can't find any reference documentation about this binary property on the page:
>> http://lv2plug.in/ns/extensions/ui/
>
> Good catch, that ought to be fixed.
>
>>>> I don't want to wake up old trolls, but last fall, when I had a sound engineer
>>>> intern working on the topic, we ended up thinking that integrating LADSPA would
>>>> really be straightforward. No such overhead, great portability, and plenty of
>>>> plugins.
>>>
>>>> So most logically, when time comes to add plugin support, I will start with
>>>> LADSPA. LV2 will maybe come afterwards. But this could change if there suddenly
>>>> is a enthusiastic mood about LV2 on Android, and that LV2 plugin packages arrive
>>>> on the Android Market.
>>>
>>> I respect your choice and understand the rationale. Also, all of this
>>> changes won't happen by tomorrow (my guess is 2/3 months, based on
>>> feeling more than facts), so if you "need effects soon", you should
>>> probably go that route.
>>
>> Effects are not the top priority. I've done quite a lot of research on it
>> because it was a good topic for my intern to work on. I have other basic
>> features to add first. And the schedule that you mention makes sense to me.
>
> Hopefully it makes sense also to Dave as well, since everything else
> that's needed is his stuff.
>
>>> However, in the long run, I would avoid LADSPA for two reasons: 1.
>>> lack of extensibility, etc., 2. LADSPA plugins can run into LV2 hosts
>>> without explicit support through the NASPRO bridges (which will be
>>> able to work by default with SLV2 starting from the next SLV2 release,
>>> otherwise you can grab the current svn SLV2 already).
>>
>> Hmm, I've been wandering in google yesterday about such LV2-LADSPA bridge.
>>
>> I am discovering the NASPRO project. That's interesting. It seems like it may
>> consume a lot of brain-time diving into all this when compared to LADSPA. But
>> I'm nevertheless a bit worried about adding support for LADSPA, as it's getting
>> old and somehow obsolete. But IIUC correctly you are about to add some sort of
>> LADSPA backward compatibility, which in any case, sounds very good and was
>> clearly missing.
>
> It's already there if you want, the 0.2.0 release is from the last
> year but should still work if you use a recent svn version of SLV2.
>
>>> So it turns out it depends on how long you want to wait, or rather if
>>> you would consider giving some help, and what you want to do with LV2.
>>
>> What kind of help would you need?
>
> There are several departments. :-)
>
> I've enumerated above the stuff missing from NASPRO core, then SLV2
> should use it, and that would probably be a good part of the work
> already.
>
>> Also, are you/is there anyone on the list who is interested in releasing audio
>> plugins for Android? Feel free to write me personally if needed.
>
> I plan to develop a DSP language and compiler that generates LV2
> plugins. Also in this case, a prototype is already in place (look for
> "Permafrost" on the NASPRO website - no easy-to-read language
> documentation yet, and both the syntax and the compiler have to be
> redone, but I may get resources - time and moeny - to do this pretty
> soon).
>
> Then, there are some plugins I more or less did (but not released
> yet). It's guitar fx stuff, however, so I don't know how they could be
> used in Android (ideas?).
>

Ciao Stefano,

With a small impedance matching device connected to the mic-in of the
phone, the way IK Multimedia's guitar amp sims work on iPhone?

http://www.ikmultimedia.com/Main.html?iphone/index.php&fenderiphone

-Giuseppe

> Stefano
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