diff --git a/examples/audio_midi.rs b/examples/audio_midi.rs
index 3fff087..aa1ac7e 100644
--- a/examples/audio_midi.rs
+++ b/examples/audio_midi.rs
@@ -57,7 +57,7 @@ fn main() -> ! {
     let mut midi_parser = instrument::midi::Parser::new();
     let midi_note_clone = Arc::clone(&midi_note);
 
-    let midi_interface = midi_interface.start(move |byte| {
+    let midi_interface = midi_interface.spawn(move |byte| {
         midi_parser.rx(byte, |_channel, message| {
             if let instrument::midi::Message::NoteOn { note, velocity: _ } = message {
                 loggit!("note_on: {:?}", note);
@@ -69,7 +69,7 @@ fn main() -> ! {
 
     // - audio callback -------------------------------------------------------
 
-    let audio_interface = audio_interface.start(move |fs, block| {
+    let audio_interface = audio_interface.spawn(move |fs, block| {
         let midi_note = midi_note.load(Ordering::Relaxed);
         let frequency = instrument::midi::to_hz(midi_note);
         osc.dx = (1. / fs) * frequency;
diff --git a/examples/audio_passthrough.rs b/examples/audio_passthrough.rs
index 4feb0e1..848c9cd 100644
--- a/examples/audio_passthrough.rs
+++ b/examples/audio_passthrough.rs
@@ -73,12 +73,12 @@ fn main() -> ! {
             }
         }
 
-        audio_interface.start(callback).unwrap()
+        audio_interface.spawn(callback).unwrap()
     };
 
     // handle callback with closure (needs alloc)
     #[cfg(any(feature = "alloc"))]
-    let audio_interface = audio_interface.start(|_fs, block| {
+    let audio_interface = audio_interface.spawn(|_fs, block| {
         for frame in block {
             let (left, right) = *frame;
             *frame = (left, right);
diff --git a/examples/audio_testsignal.rs b/examples/audio_testsignal.rs
index e0c4cca..afa1043 100644
--- a/examples/audio_testsignal.rs
+++ b/examples/audio_testsignal.rs
@@ -94,7 +94,7 @@ fn main() -> ! {
         let mut osc_1: osc::Wavetable = osc::Wavetable::new(osc::Shape::Sin);
         let mut osc_2: osc::Wavetable = osc::Wavetable::new(osc::Shape::Saw);
 
-        audio_interface.start(move |fs, block| {
+        audio_interface.spawn(move |fs, block| {
             osc_1.dx = (1. / fs) * 110.00;
             osc_2.dx = (1. / fs) * 110.00;
             for frame in block {
diff --git a/src/audio.rs b/src/audio.rs
index 80f5c9d..229e10a 100644
--- a/src/audio.rs
+++ b/src/audio.rs
@@ -170,22 +170,22 @@ impl<'a> Interface<'a> {
 
     /// assign function pointer for interrupt callback and start audio
     #[cfg(not(feature = "alloc"))]
-    pub fn start(mut self, function_ptr:fn (f32, &mut Block)) -> Result<Self, Error> {
+    pub fn spawn(mut self, function_ptr:fn (f32, &mut Block)) -> Result<Self, Error> {
         self.function_ptr = Some(function_ptr);
-        self.start_audio()?;
+        self.start()?;
         Ok(self) // TODO type state for started audio interface
     }
 
     /// assign closure for interrupt callback and start audio
     #[cfg(any(feature = "alloc"))]
-    pub fn start<F: FnMut(f32, &mut Block) + Send + Sync + 'a>(mut self, closure: F) -> Result<Self, Error> {
+    pub fn spawn<F: FnMut(f32, &mut Block) + Send + Sync + 'a>(mut self, closure: F) -> Result<Self, Error> {
         self.closure = Some(Box::new(closure));
-        self.start_audio()?;
+        self.start()?;
         Ok(self) // TODO type state for started audio interface
     }
 
 
-    fn start_audio(&mut self) -> Result<(), Error> {
+    fn start(&mut self) -> Result<(), Error> {
         // - AK4556 -----------------------------------------------------------
 
         let ak4556_reset = self.ak4556_reset.as_mut().unwrap();
diff --git a/src/midi.rs b/src/midi.rs
index 096432a..2884a43 100644
--- a/src/midi.rs
+++ b/src/midi.rs
@@ -61,7 +61,7 @@ impl<'a> Interface<'a> {
 
     /// assign function pointer for interrupt callback and start interface
     #[cfg(not(feature = "alloc"))]
-    pub fn start(mut self, function_ptr:fn (u8)) -> Result<Self, Error> {
+    pub fn spawn(mut self, function_ptr:fn (u8)) -> Result<Self, Error> {
         self.function_ptr = Some(function_ptr);
         unsafe { pac::NVIC::unmask(pac::Interrupt::USART1); }
         Ok(self)
@@ -69,7 +69,7 @@ impl<'a> Interface<'a> {
 
     /// assign closure for interrupt callback and start interface
     #[cfg(any(feature = "alloc"))]
-    pub fn start<F: FnMut(u8) + Send + 'a>(mut self, closure: F) -> Result<Self, Error> {
+    pub fn spawn<F: FnMut(u8) + Send + 'a>(mut self, closure: F) -> Result<Self, Error> {
         self.closure = Some(Box::new(closure));
         unsafe { pac::NVIC::unmask(pac::Interrupt::USART1); }
         Ok(self)