diff options
| author | Robin Gareus <robin@gareus.org> | 2014-01-20 21:42:47 +0100 |
|---|---|---|
| committer | Robin Gareus <robin@gareus.org> | 2014-01-22 15:30:38 +0100 |
| commit | 114997b7e65c4c4fdab7870d6bac411752f6875a (patch) | |
| tree | bcdf92ebc5ba9479fab65a6694045b1e7c99b7b7 /libs/plugins/reasonablesynth.lv2 | |
| parent | 224b44c6e225a683a6ba18eef85e2798fdda514e (diff) | |
tweak reasonable synth:
* prevent denormals / cut low volume
* reduce default amplitude of fundamental
Diffstat (limited to 'libs/plugins/reasonablesynth.lv2')
| -rw-r--r-- | libs/plugins/reasonablesynth.lv2/rsynth.c | 37 |
1 files changed, 20 insertions, 17 deletions
diff --git a/libs/plugins/reasonablesynth.lv2/rsynth.c b/libs/plugins/reasonablesynth.lv2/rsynth.c index a6c74aa26c..3f3db579b8 100644 --- a/libs/plugins/reasonablesynth.lv2/rsynth.c +++ b/libs/plugins/reasonablesynth.lv2/rsynth.c @@ -185,23 +185,26 @@ static void synthesize_sineP (RSSynthChannel* sc, for (i=0; i < n_samples; ++i) { float env = adsr_env(sc, note); if (sc->adsr_cnt[note] == 0) break; - const float amp = vol * env; - - left[i] += amp * sinf(2.0 * M_PI * phase); - left[i] += .300 * amp * sinf(2.0 * M_PI * phase * 2.0); - left[i] += .150 * amp * sinf(2.0 * M_PI * phase * 3.0); - left[i] += .080 * amp * sinf(2.0 * M_PI * phase * 4.0); - //left[i] -= .007 * amp * sinf(2.0 * M_PI * phase * 5.0); - //left[i] += .010 * amp * sinf(2.0 * M_PI * phase * 6.0); - left[i] += .020 * amp * sinf(2.0 * M_PI * phase * 7.0); - phase += fq; - right[i] += amp * sinf(2.0 * M_PI * phase); - right[i] += .300 * amp * sinf(2.0 * M_PI * phase * 2.0); - right[i] += .150 * amp * sinf(2.0 * M_PI * phase * 3.0); - right[i] -= .080 * amp * sinf(2.0 * M_PI * phase * 4.0); - //right[i] += .007 * amp * sinf(2.0 * M_PI * phase * 5.0); - //right[i] += .010 * amp * sinf(2.0 * M_PI * phase * 6.0); - right[i] -= .020 * amp * sinf(2.0 * M_PI * phase * 7.0); + const float amp = vol * env * .6; + if (amp > 1e-10) { + left[i] += amp * sinf(2.0 * M_PI * phase); + left[i] += .300 * amp * sinf(2.0 * M_PI * phase * 2.0); + left[i] += .150 * amp * sinf(2.0 * M_PI * phase * 3.0); + left[i] += .080 * amp * sinf(2.0 * M_PI * phase * 4.0); + //left[i] -= .007 * amp * sinf(2.0 * M_PI * phase * 5.0); + //left[i] += .010 * amp * sinf(2.0 * M_PI * phase * 6.0); + left[i] += .020 * amp * sinf(2.0 * M_PI * phase * 7.0); + phase += fq; + right[i] += amp * sinf(2.0 * M_PI * phase); + right[i] += .300 * amp * sinf(2.0 * M_PI * phase * 2.0); + right[i] += .150 * amp * sinf(2.0 * M_PI * phase * 3.0); + right[i] -= .080 * amp * sinf(2.0 * M_PI * phase * 4.0); + //right[i] += .007 * amp * sinf(2.0 * M_PI * phase * 5.0); + //right[i] += .010 * amp * sinf(2.0 * M_PI * phase * 6.0); + right[i] -= .020 * amp * sinf(2.0 * M_PI * phase * 7.0); + } else { + phase += fq; + } if (phase > 1.0) phase -= 2.0; } sc->phase[note] = phase; |