Tanu Kaskinen <tanuk at iki.fi> writes: Hi Tanu, > On Fri, 2012-07-20 at 17:32 -0300, Flavio Ceolin wrote: >> Tanu Kaskinen <tanuk at iki.fi> writes: >> > There were problems with the code. I don't remember what exactly was >> > broken, though. But at least I didn't like the concurrency handling: I >> > really dislike doing inter-thread communication by using shared >> > variables. Instead, message passing should be used, in my opinion. >> >> I'll investigate how to solve it. Btw, do you think it's better start >> from the scratch or it's ok start from this code ? > > I really don't know. I'm not familiar enough with the code to know how > much of it needs rewriting. > > I know that Jaska Uimonen has been working with volume envelopes too, > and asked him yesterday about the status. He said he will post the code > to the mailing list on Monday. I haven't seen the code, but if it's > good, then it might be a good starting point too (Jaska said that it's > lacking multichannel support, so work will be needed). > It's really good to heard it. >> >> 2) How an application should use this code, AFAIK this code is not being >> >> exported. >> > >> > What's your use case? If we are talking about sink volume ramping, I >> > don't see the need for a client interface at all, because it should be >> > done automatically by the server. >> >> Basically I want to set an envelope which apply a filter changing the >> sound balance and/or the volume, it's easier demonstrating an idea of an >> envelope: > > But what's the use case (user-visible feature) that you're interested > in? My answer to the "how an application should use this code" depends > on the use case. I want make possible an application associate an action with an audio effect. For example, a dialog pops up and you want to keep that sample pattern playing but you want to "fade it out" so its really quiet. So over 2 seconds you fade it out. Another example would be you shift balance to the left or right according with the mobile phone (or whatever you want) position. Regards, Flavio Ceolin
