On Fri, Jun 03, 2011 at 09:11:35AM -0300, Iain Mott wrote: > I would like to know what jack compatible systems are available on Linux > to spatialise a moving mono source in realtime with ambisonics > (including distance attenuation) that also provide some reverberation > cues. > > I've tried spat3d in csound with a GUI - and while this spatialises the > source very well, I've not been so happy with the sound of simulated > room reflections - perhaps it's the way I am setting it up. I'm also > looking at the SoundScape Renderer (SSR) which is very nice - but > doesn't seem to have an implementation of reverberation for moving > sources. > > Is convolution reverb a possibility for a moving source - eg. is it > possible to cross-fade between the inputs of ambisonic IRs set up in > jconvolver recorded at various angular locations? This would be ideal > for my application which involves the spatialisation of an actress' > voice within a room - so that she appears to be walking (and talking) > through the space in relation to a seated listener.
I assume you are AKA 'acousmetre' ? Sorry for the delay, I've been quite busy the last week - having to move home at very short notice (within 2 weeks actually, and I haven't found a new one yet ...) Using a set of different ER with the same reverb tail works well with static sources, but I've never used it with moving ones. I've no idea if crossfading ERs for a moving source will work. If you want to try it, the way to do it is use e.g. 3rd order AMB panning for the reverb send, decode it to e.g. an octagon and use the decoder outputs to drive the inputs of the convolver. OTOH I'm surprised about your results with spat3d, it's assumed to be one of the most advanced tools available. For your project, how important is the _distance_ of the virtual source w.r.t. the listener ? Is the actress supposed to move very close ? Ciao, -- FA _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
