From d619fb2f4d56979b45d4a87e6a04845058f8859b Mon Sep 17 00:00:00 2001
From: Matt Jenkins <matt@majenko.co.uk>
Date: Sat, 7 Sep 2019 20:34:02 +0100
Subject: [PATCH] Added playback speed option

---
 .../audiobookrecorder/AudiobookRecorder.java  |  8 ++++++--
 .../audiobookrecorder/MainToolBar.java        | 20 +++++++++++++++++++
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/src/uk/co/majenko/audiobookrecorder/AudiobookRecorder.java b/src/uk/co/majenko/audiobookrecorder/AudiobookRecorder.java
index aa5cb19..fb9a8a5 100644
--- a/src/uk/co/majenko/audiobookrecorder/AudiobookRecorder.java
+++ b/src/uk/co/majenko/audiobookrecorder/AudiobookRecorder.java
@@ -2183,7 +2183,9 @@ public class AudiobookRecorder extends JFrame {
                 try {
 
                     AudioFormat sampleformat = s.getAudioFormat();
-                    AudioFormat format = new AudioFormat(sampleformat.getSampleRate(), 16, 2, true, false);
+                    float sampleRate = sampleformat.getSampleRate();
+                    sampleRate *= toolBar.getPlaybackSpeed();
+                    AudioFormat format = new AudioFormat(sampleRate, 16, 2, true, false);
             
                     play = AudioSystem.getSourceDataLine(format, Options.getPlaybackMixer());
                     play.open(format);
@@ -2421,7 +2423,9 @@ public class AudiobookRecorder extends JFrame {
                 try {
 
                     AudioFormat sampleformat = s.getAudioFormat();
-                    AudioFormat format = new AudioFormat(sampleformat.getSampleRate(), 16, 2, true, false);
+                    float sampleRate = sampleformat.getSampleRate();
+                    sampleRate *= toolBar.getPlaybackSpeed();
+                    AudioFormat format = new AudioFormat(sampleRate, 16, 2, true, false);
                     play = AudioSystem.getSourceDataLine(format, Options.getPlaybackMixer());
                     play.open(format);
                     play.start();
diff --git a/src/uk/co/majenko/audiobookrecorder/MainToolBar.java b/src/uk/co/majenko/audiobookrecorder/MainToolBar.java
index c78740e..0653c05 100644
--- a/src/uk/co/majenko/audiobookrecorder/MainToolBar.java
+++ b/src/uk/co/majenko/audiobookrecorder/MainToolBar.java
@@ -19,6 +19,8 @@ public class MainToolBar extends JToolBar {
     JButtonSpacePlay eq;
     JToggleButtonSpacePlay mic;
 
+    JComboBox<String> playbackSpeed;
+
     JToggleButtonSpacePlay disableEffects;
 
     AudiobookRecorder root;
@@ -128,6 +130,7 @@ public class MainToolBar extends JToolBar {
                 }
             }
         });
+
         
         add(mic);
 
@@ -152,7 +155,19 @@ public class MainToolBar extends JToolBar {
 
         add(disableEffects);
 
+        addSeparator();
 
+        add(new JLabel("Playback speed: "));
+        playbackSpeed = new JComboBox<String>(new String[] {
+            "0.75x",
+            "1.00x",
+            "1.25x",
+            "1.50x",
+            "1.75x"
+        });
+
+        playbackSpeed.setSelectedIndex(1);
+        add(playbackSpeed);
 
         setFloatable(false);
     }
@@ -161,4 +176,9 @@ public class MainToolBar extends JToolBar {
         playtoSentence.setEnabled(b);
     }
 
+    public float getPlaybackSpeed() {
+        int v = playbackSpeed.getSelectedIndex();
+        return 0.75f + (0.25f * v);
+    }
+
 }