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The question was already discussed a few times in the past: You will probably need dedicated hardware like a Roland GR-33 to get something really playable.
AUBIO PLUGINS NOT LOADING IN SONIC VISUALISER HOW TO
I’m definitely open to ideas for how to make SV more useful in conjunction with other tools – the more generic (and easier to implement!) the better, of course.I'm also interested in the matter, but I don't think a software only solution can currently provide good enough performance and accuracy (at least in the current state of technology). Also, SV has no way to merge Ardour’s one-per-channel audio files. You could load recorded files from your Ardour session into SV and sync the two with JACK transport, but only if the recordings are aligned with frame zero in Ardour (SV has no way to set an offset for the start of an audio clip, although that might not be hard to add, or else it could be made to apply an offset as part of the JACK transport sync support). Vamp plugins are almost by definition not real-time safe (strictly speaking there’s no reason an actual plugin can’t be, but it’s seldom practical for significant plugins and in any case the C++ wrapper in the SDK is not RT safe) and SV expects to operate on audio file data. What’s much less likely to happen in the near future is real-time analysis or recording. Sonic Visualiser will probably get JACK transport support pretty soon – it would be a handy feature generally. Vamp has documentation and a C++ SDK, and I’d be happy to help out in any way if you’re interested in using it. colours or curves based on timbral content), key estimation, etc. Natural applications for Vamp plugins in Ardour would include things like beat and onset detection, audio-to-MIDI, alternatives to waveforms for visualisation (e.g. (Sonic Visualiser’s own spectrogram view does not use a plugin.) It is possible to write a spectrogram Vamp plugin (you can get one from the Mazurka project), but it isn’t terribly efficient. note onset points, pitch tracking curves, tonal histograms). a high-resolution spectrogram) from audio, but more appropriate to lower volume slightly structured data (e.g. Vamp is not a format for “visualisation plugins”, in the sense that the plugins themselves don’t get to draw anything – they just return data that the host determines how to display.Īlso, the format is aimed at analysis more than visualisation in the sense that it’s far from optimal for extracting large quantities of data (e.g. two or three dimensional irregularly sampled floating point data. The outputs can be moderately complex, e.g. Vamp is an API for non-realtime plugins in C or C++ that take audio as input and return something other than audio as output. It’s not 'bout recording … It’s 'bout freezing time … Why reinvent the wheel, do you think is there someway to embed this as the “Analize” function in ardour2? perhaps another Idea would be to add support for VAMP plugins for waveform views and analysis views, it just have to be seen how is their performance.Īn idea I saw in this visualizer that shouldn’be that difficult to add in ardour is the possibility of annotate the waveforms … I mean metadata as you’re editing is not that bad, isn’t it? doesn’t the WAVE format support this in a kind of metadata chunk? This has the greatest FFT views I’ve ever seen and also a plugin architecture for Visualizing plugins (VAMP), and there are a bunch of ready-to-go visualizing plugins already, spectral views, note name views, etc. I’ve just got to finally compile Ardour2 on my gentoo (for Gentoo users a Hint: emerge dev-libs/glib-2.10.3, get also the pro-audio layman repository, easy as a cake) and tried the FFT view, nonethless is a work in progress it seems quite useful to me … anyway, as the developer wanted ideas … well, there’s this guy who has wrote the greatest analysis program I’ve ever seen: