diff --git a/src/dsp/helpers.rs b/src/dsp/helpers.rs
index 44ef44a..52a7043 100644
--- a/src/dsp/helpers.rs
+++ b/src/dsp/helpers.rs
@@ -829,9 +829,16 @@ macro_rules! fc {
     ($F: ident, $e: expr) => { F::from_f64($e).unwrap() }
 }
 
+#[allow(dead_code)]
 #[inline]
 fn f<F: Flt>(x: f64) -> F { F::from_f64(x).unwrap() }
+
+#[allow(dead_code)]
+#[inline]
 fn fclamp<F: Flt>(x: F, mi: F, mx: F) -> F { x.max(mi).min(mx) }
+
+#[allow(dead_code)]
+#[inline]
 fn fclampc<F: Flt>(x: F, mi: f64, mx: f64) -> F { x.max(f(mi)).min(f(mx)) }
 
 #[derive(Debug, Clone, Default)]
diff --git a/src/dsp/node_pverb.rs b/src/dsp/node_pverb.rs
index 5371f7e..24334b4 100644
--- a/src/dsp/node_pverb.rs
+++ b/src/dsp/node_pverb.rs
@@ -233,7 +233,7 @@ impl DspNode for PVerb {
         let out_l = &mut out_l[0];
         let out_r = &mut out_r[0];
 
-        let mut verb = &mut *self.verb;
+        let verb = &mut *self.verb;
 
         for frame in 0..ctx.nframes() {
             let (i_l, i_r) = (in_l.read(frame), in_r.read(frame));
diff --git a/src/dsp/node_rndwk.rs b/src/dsp/node_rndwk.rs
index e97a8af..f0f01a1 100644
--- a/src/dsp/node_rndwk.rs
+++ b/src/dsp/node_rndwk.rs
@@ -6,7 +6,6 @@ use crate::nodes::{NodeAudioContext, NodeExecContext};
 use crate::dsp::helpers::{Rng, Trigger, SlewValue};
 use crate::dsp::{
     NodeId, SAtom, ProcBuf, DspNode, LedPhaseVals, NodeContext,
-    GraphAtomData, GraphFun,
 };
 
 /// A triggered random walker
@@ -106,7 +105,7 @@ impl DspNode for RndWk {
         _atoms: &[SAtom], inputs: &[ProcBuf],
         outputs: &mut [ProcBuf], ctx_vals: LedPhaseVals)
     {
-        use crate::dsp::{out, inp, denorm, denorm_offs, at};
+        use crate::dsp::{out, inp, denorm};
 
         let trig    = inp::RndWk::trig(inputs);
         let step    = inp::RndWk::step(inputs);
diff --git a/src/dsp/node_tslfo.rs b/src/dsp/node_tslfo.rs
index 549245b..436f600 100644
--- a/src/dsp/node_tslfo.rs
+++ b/src/dsp/node_tslfo.rs
@@ -70,7 +70,7 @@ impl DspNode for TsLFO {
     fn process<T: NodeAudioContext>(
         &mut self, ctx: &mut T, _ectx: &mut NodeExecContext,
         _nctx: &NodeContext,
-        atoms: &[SAtom], inputs: &[ProcBuf],
+        _atoms: &[SAtom], inputs: &[ProcBuf],
         outputs: &mut [ProcBuf], ctx_vals: LedPhaseVals)
     {
         use crate::dsp::{out, inp, denorm};
@@ -80,7 +80,7 @@ impl DspNode for TsLFO {
         let rev  = inp::TsLFO::rev(inputs);
         let out  = out::TsLFO::sig(outputs);
 
-        let mut lfo = &mut *self.lfo;
+        let lfo = &mut *self.lfo;
 
         for frame in 0..ctx.nframes() {
             if self.trig.check_trigger(denorm::TsLFO::trig(trig, frame)) {
@@ -103,7 +103,7 @@ impl DspNode for TsLFO {
         let mut lfo = TriSawLFO::new();
         lfo.set_sample_rate(160.0);
 
-        Some(Box::new(move |gd: &dyn GraphAtomData, init: bool, _x: f32, xn: f32| -> f32 {
+        Some(Box::new(move |gd: &dyn GraphAtomData, init: bool, _x: f32, _xn: f32| -> f32 {
             if init {
                 lfo.reset();
                 let time_idx = NodeId::TsLFO(0).inp_param("time").unwrap().inp();
diff --git a/src/dsp/node_vosc.rs b/src/dsp/node_vosc.rs
index 1433c62..f492cb6 100644
--- a/src/dsp/node_vosc.rs
+++ b/src/dsp/node_vosc.rs
@@ -131,7 +131,7 @@ impl DspNode for VOsc {
         let dist       = dist.i() as u8;
         let oversample = ovrsmpl.i() == 1;
 
-        let mut osc = &mut self.osc;
+        let osc = &mut self.osc;
 
         if oversample {
             for frame in 0..ctx.nframes() {
diff --git a/tests/node_pverb.rs b/tests/node_pverb.rs
index cfa43a5..94ad8d2 100644
--- a/tests/node_pverb.rs
+++ b/tests/node_pverb.rs
@@ -44,7 +44,6 @@ fn setup_pverb(matrix: &mut Matrix) {
 fn check_node_pverb_dcy_1() {
     init_test!(matrix, node_exec, 3);
 
-    let ad_1    = NodeId::Ad(0);
     let pverb_1 = NodeId::PVerb(0);
 
     setup_pverb(matrix);