65 lines
2.5 KiB
Rust
65 lines
2.5 KiB
Rust
// Copyright (c) 2021 Weird Constructor <weirdconstructor@gmail.com>
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// This file is a part of HexoDSP. Released under GPL-3.0-or-later.
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// See README.md and COPYING for details.
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mod common;
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use common::*;
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#[test]
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fn check_node_allp() {
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let (node_conf, mut node_exec) = new_node_engine();
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let mut matrix = Matrix::new(node_conf, 4, 4);
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let test = NodeId::Test(0);
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let ap = NodeId::AllP(0);
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let out = NodeId::Out(0);
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matrix.place(0, 0, Cell::empty(test)
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.out(None, None, test.out("tsig")));
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matrix.place(0, 1, Cell::empty(ap)
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.input(ap.inp("inp"), None, None)
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.out(None, None, ap.out("sig")));
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matrix.place(0, 2, Cell::empty(out)
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.input(out.inp("ch1"), None, None)
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.out(None, None, None));
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matrix.place(1, 0, Cell::empty(test)
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.out(None, None, test.out("tsig")));
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matrix.place(1, 1, Cell::empty(out)
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.input(out.inp("ch2"), None, None)
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.out(None, None, None));
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pset_d(&mut matrix, ap, "time", 3.0);
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matrix.sync().unwrap();
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pset_s(&mut matrix, test, "trig", 1);
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let res = run_for_ms(&mut node_exec, 20.0);
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// the original signal on ch2: 2ms trigger up:
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let mut v = vec![1.0; (2.0 * 44.1_f32).ceil() as usize];
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v.append(&mut vec![0.0; (18.0 * 44.1_f32).ceil() as usize]);
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assert_vec_feq!(res.1, v);
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// now signal on ch1 from the allpass:
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// starts with original signal * -0.7
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let mut v = vec![-0.7; (2.0 * 44.1_f32).ceil() as usize];
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// silence for 1ms, which is the internal delay of the allpass
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v.append(&mut vec![0.0; (1.0 * 44.1_f32).floor() as usize - 3]);
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// allpass feedback of the original signal for 2ms:
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// XXX: the smearing before and after the allpass is due to the
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// cubic interpolation!
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v.append(&mut vec![-0.03150302, 0.25802, 1.0735]);
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v.append(&mut vec![1.0; (2.0 * 44.1_f32).ceil() as usize - 3]);
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v.append(&mut vec![1.0315, 0.7419, -0.0735]);
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// 1ms allpass silence like before:
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v.append(&mut vec![0.0; (1.0 * 44.1_f32).floor() as usize - 6]);
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// 2ms the previous 1.0 * 0.7 fed back into the filter,
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// including even more smearing due to cubic interpolation:
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v.append(&mut vec![0.0006, -0.0120, 0.0106, 0.3444, 0.7801, 0.6962]);
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v.append(&mut vec![0.7; (2.0 * 44.1_f32).floor() as usize - 5]);
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v.append(&mut vec![0.6993, 0.712, 0.6893, 0.3555, -0.0801, 0.0037]);
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//d// println!("res={:?}", res.1);
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assert_vec_feq!(res.0, v);
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}
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