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changeset 324:ce2b123fc2de tonioni

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Merge
author Rachel Bittner <rmb456@nyu.edu>
date Thu, 16 Jan 2014 15:49:26 -0500
parents 5c69d40a0e30 (current diff) 4fdf70be6671 (diff)
children 7bdfbaa8d93f
files
diffstat 2 files changed, 21 insertions(+), 6 deletions(-) [+]
line wrap: on
line diff
--- a/audioio/ClipMixer.cpp	Sun Jan 12 05:12:08 2014 -0500
+++ b/audioio/ClipMixer.cpp	Thu Jan 16 15:49:26 2014 -0500
@@ -122,7 +122,10 @@
                std::vector<NoteEnd> endingNotes)
 {
     foreach (NoteStart note, newNotes) {
-        m_playing.push_back(note);
+        if (note.frequency > 20 && 
+            note.frequency < 5000) {
+            m_playing.push_back(note);
+        }
     }
 
     std::vector<NoteStart> remaining;
@@ -167,7 +170,8 @@
                         note.frequency,
                         start < 0 ? -start : 0,
                         start > 0 ?  start : 0,
-                        durationHere);
+                        durationHere,
+                        ending);
             }
         }
 
@@ -189,13 +193,19 @@
                    float frequency,
                    int sourceOffset,
                    int targetOffset,
-                   int sampleCount)
+                   int sampleCount,
+                   bool isEnd)
 {
     if (!m_clipData) return;
 
     float ratio = getResampleRatioFor(frequency);
     
-    //!!! todo: release time
+    float releaseTime = 0.01;
+    int releaseSampleCount = round(releaseTime * m_sampleRate);
+    if (releaseSampleCount > sampleCount) {
+        releaseSampleCount = sampleCount;
+    }
+    float releaseFraction = 1.f/releaseSampleCount;
 
     for (int i = 0; i < sampleCount; ++i) {
 
@@ -214,7 +224,11 @@
         if (osi + 1 < m_clipLength) {
             value += (m_clipData[osi + 1] - m_clipData[osi]) * (os - osi);
         }
-        
+         
+        if (isEnd && i + releaseSampleCount > sampleCount) {
+            value *= releaseFraction * (sampleCount - i); // linear ramp for release
+        }
+
         for (int c = 0; c < m_channels; ++c) {
             toBuffers[c][targetOffset + i] += levels[c] * value;
         }
--- a/audioio/ClipMixer.h	Sun Jan 12 05:12:08 2014 -0500
+++ b/audioio/ClipMixer.h	Thu Jan 16 15:49:26 2014 -0500
@@ -81,7 +81,8 @@
                  float frequency,
                  int sourceOffset, // within resampled note
                  int targetOffset, // within target buffer
-                 int sampleCount);
+                 int sampleCount,
+                 bool isEnd);
 };