diff --git a/crates/device/src/meter.rs b/crates/device/src/meter.rs
index 81416bd0..e791aefc 100644
--- a/crates/device/src/meter.rs
+++ b/crates/device/src/meter.rs
@@ -15,7 +15,7 @@ render!(TuiOut: |self: Meter, to| {
     let signal = 100.0 - f32::max(0.0, f32::min(100.0, self.0.abs()));
     let v = (signal * h as f32 / 100.0).ceil() as u16;
     let y2 = y + h;
-    //to.blit(&format!("\r{v} {} {signal}", self.0), x * 20, y, None);
+    //to.blit(&format!("\r{v} {} {signal}", self.0), x * 30, y, Some(Style::default()));
     for y in y..(y + v) {
         for x in x..(x + w) {
             to.blit(&"▌", x, y2 - y, Some(Style::default().green()));
@@ -23,14 +23,16 @@ render!(TuiOut: |self: Meter, to| {
     }
 });
 
-pub fn to_rms (samples: &[u32]) -> f32 {
-    let sum: usize = samples.iter()
-        .map(|s|*s as usize)
+pub fn to_rms (samples: &[f32]) -> f32 {
+    let sum = samples.iter()
+        .map(|s|*s)
         .reduce(|sum, sample|sum + sample)
-        .unwrap_or(0);
-    (sum as f32 / samples.len() as f32).sqrt()
+        .unwrap_or(0.0);
+    (sum / samples.len() as f32).sqrt()
 }
 
-pub fn to_log10 (samples: &[u32]) -> f32 {
-    0.0
+pub fn to_log10 (samples: &[f32]) -> f32 {
+    let total: f32 = samples.iter().map(|x|x.abs()).sum();
+    let count = samples.len() as f32;
+    10. * (total / count).log10()
 }
diff --git a/crates/device/src/sampler/sampler_audio.rs b/crates/device/src/sampler/sampler_audio.rs
index cfbe7b6e..64c7ba82 100644
--- a/crates/device/src/sampler/sampler_audio.rs
+++ b/crates/device/src/sampler/sampler_audio.rs
@@ -41,9 +41,7 @@ impl Sampler {
         for ((input, meter), channel) in samples_with_meters {
             let slice = input.port().as_slice(scope);
             length = length.max(slice.len());
-            let total: f32 = slice.iter().map(|x|x.abs()).sum();
-            let count = slice.len() as f32;
-            *meter = 10. * (total / count).log10();
+            *meter = to_log10(slice);
             channel.extend_from_slice(slice);
         }
         sample.end += length;
@@ -53,9 +51,7 @@ impl Sampler {
     fn update_input_meters (&mut self, scope: &ProcessScope) {
         for (input, meter) in self.audio_ins.iter().zip(self.input_meters.iter_mut()) {
             let slice = input.port().as_slice(scope);
-            let total: f32 = slice.iter().map(|x|x.abs()).sum();
-            let count = slice.len() as f32;
-            *meter = 10. * (total / count).log10();
+            *meter = to_log10(slice);
         }
     }