diff --git a/src/fmt.rs b/src/fmt.rs
index 9dc6d76..e18326c 100644
--- a/src/fmt.rs
+++ b/src/fmt.rs
@@ -379,49 +379,4 @@ impl WaveFmt {
             x => panic!("Channel count ({}) was illegal!", x),
         }
     }
-}
-
-trait ReadWavAudioData {
-    fn read_i32_frames(&mut self, format: WaveFmt, into: &mut [i32]) -> Result<usize,std::io::Error>;
-    fn read_f32_frames(&mut self, format: WaveFmt, into: &mut [f32]) -> Result<usize,std::io::Error>;
-}
-
-impl<T> ReadWavAudioData for T where T: std::io::Read {
-
-    fn read_i32_frames(&mut self, format: WaveFmt, into: &mut [i32]) -> Result<usize, std::io::Error> { 
-        assert!(into.len() % format.channel_count as usize == 0);
-
-        for n in 0..(into.len()) {
-            into[n] = match (format.valid_bits_per_sample(), format.bits_per_sample) {
-                (0..=8,8) => self.read_u8().unwrap() as i32 - 0x80_i32, // EBU 3285 §A2.2
-                (9..=16,16) => self.read_i16::<LittleEndian>().unwrap() as i32,
-                (10..=24,24) => self.read_i24::<LittleEndian>().unwrap(),
-                (25..=32,32) => self.read_i32::<LittleEndian>().unwrap(),
-                (b,_)=> panic!("Unrecognized integer format, bits per sample {}, channels {}, block_alignment {}", 
-                    b, format.channel_count, format.block_alignment)
-            }
-        }
-
-        todo!()
-    }
-    fn read_f32_frames(&mut self, format: WaveFmt, into: &mut [f32]) -> Result<usize, std::io::Error> { 
-        assert!(into.len() % format.channel_count as usize == 0);
-        todo!()
-    }
-
-}
-
-trait WriteWavAudioData {
-    fn write_i32_frames(&mut self, format: WaveFmt, from: &[i32]) -> Result<usize, std::io::Error>;
-    fn write_f32_frames(&mut self, format: WaveFmt, from: &[f32]) -> Result<usize, std::io::Error>;
-}
-
-impl<T> WriteWavAudioData for T where T: std::io::Write {
-
-    fn write_i32_frames(&mut self, format: WaveFmt, _: &[i32]) -> Result<usize, std::io::Error> { 
-        todo!() 
-    }
-    fn write_f32_frames(&mut self, format: WaveFmt, _: &[f32]) -> Result<usize, std::io::Error> { 
-        todo!() 
-    }
 }
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