From 230afc09ffca2560f28e68d2028cc12d3a25ab9b Mon Sep 17 00:00:00 2001 From: Paul Davis Date: Wed, 26 Feb 2014 18:44:54 -0500 Subject: increase number of steps in xfade curves (where applicable) from about 9 to 32 --- libs/ardour/audioregion.cc | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'libs/ardour/audioregion.cc') diff --git a/libs/ardour/audioregion.cc b/libs/ardour/audioregion.cc index 331de043cd..436f94a8b6 100644 --- a/libs/ardour/audioregion.cc +++ b/libs/ardour/audioregion.cc @@ -987,6 +987,8 @@ AudioRegion::set_fade_in (FadeShape shape, framecnt_t len) boost::shared_ptr c2 (new Evoral::ControlList (FadeInAutomation)); boost::shared_ptr c3 (new Evoral::ControlList (FadeInAutomation)); + const int num_steps = min ((framecnt_t) 64, len); + _fade_in->freeze (); _fade_in->clear (); _inverse_fade_in->clear (); @@ -999,15 +1001,15 @@ AudioRegion::set_fade_in (FadeShape shape, framecnt_t len) break; case FadeFast: - generate_db_fade (_fade_in.val(), len, 10, -60); + generate_db_fade (_fade_in.val(), len, num_steps, -60); reverse_curve (c1, _fade_in.val()); _fade_in->copy_events (*c1); generate_inverse_power_curve (_inverse_fade_in.val(), _fade_in.val()); break; case FadeSlow: - generate_db_fade (c1, len, 10, -1); // start off with a slow fade - generate_db_fade (c2, len, 10, -80); // end with a fast fade + generate_db_fade (c1, len, num_steps/2, -1); // start off with a slow fade + generate_db_fade (c2, len, num_steps/2, -80); // end with a fast fade merge_curves (_fade_in.val(), c1, c2); reverse_curve (c3, _fade_in.val()); _fade_in->copy_events (*c3); @@ -1015,8 +1017,8 @@ AudioRegion::set_fade_in (FadeShape shape, framecnt_t len) break; case FadeConstantPower: - for (int i = 0; i < 9; ++i) { - float dist = (float) i / 10.0f; + for (int i = 0; i < num_steps; ++i) { + float dist = (float) i / (num_steps+1.0); _fade_in->fast_simple_add (len*dist, sin (dist*M_PI/2)); } _fade_in->fast_simple_add (len, 1.0); @@ -1029,7 +1031,6 @@ AudioRegion::set_fade_in (FadeShape shape, framecnt_t len) _fade_in->fast_simple_add (0.5*len, 0.6); //now generate a fade-out curve by successively applying a gain drop const float breakpoint = 0.7; //linear for first 70% - const int num_steps = 9; for (int i = 2; i < num_steps; i++) { float coeff = (1.0-breakpoint); for (int j = 0; j < i; j++) { -- cgit v1.2.3