2020-09-30 16:06:35 -04:00
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ardour { ["type"] = "dsp", name = "Lua FIR Convolver", license = "MIT", author = "Ardour Team", description = [[Another simple DSP example]] }
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2020-02-01 09:58:34 -05:00
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function dsp_ioconfig () return
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{
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{ audio_in = 1, audio_out = 1},
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}
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end
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local conv
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function dsp_configure (ins, outs)
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conv = ARDOUR.DSP.Convolution (Session, ins:n_audio (), outs:n_audio ())
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local cmem = ARDOUR.DSP.DspShm (4)
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cmem:clear ()
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local d = cmem:to_float (0):array()
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d[1] = .5
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d[2] = .5
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local ar = ARDOUR.AudioRom.new_rom (cmem:to_float (0), 4)
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conv:add_impdata (0, 0, ar, 1.0, 0, 0, 0, 0)
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cmem:to_float (0):set_table({1, -1, 0, 0}, 4)
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ar = ARDOUR.AudioRom.new_rom (cmem:to_float (0), 3)
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conv:add_impdata (0, 0, ar, 1.0, 0, 0, 0, 0)
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conv:restart ()
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collectgarbage ()
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end
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function dsp_latency ()
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return conv:latency()
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end
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function dsp_runmap (bufs, in_map, out_map, n_samples, offset)
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conv:run (bufs, in_map, out_map, n_samples, offset)
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end
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