Remove changes to frequency

src/source/sine.rs

@@ -1,11 +1,11 @@
 use std::time::Duration;
 use Source;
 
-const PI_2: f32 = std::f32::consts::PI * 2.0;
+const PI_2 = std::f32::consts::PI * 2.0f32;
 
 /// An infinite source that produces a sine.
 ///
-/// Always has a rate of 44.1kHz and one channel.
+/// Always has a rate of 48kHz and one channel.
 #[derive(Clone, Debug)]
 pub struct SineWave {
     freq: f32,
@@ -28,7 +28,7 @@ impl Iterator for SineWave {
 
     #[inline]
     fn next(&mut self) -> Option<f32> {
-        self.cur_val += PI_2 * self.freq / 44100.0;
+        self.cur_val += PI_2 * self.freq / 48000.0;
         if self.cur_val > PI_2  {
             self.cur_val -= PI_2;
         }