diff --git a/src/detector/analysis.rs b/src/detector/analysis.rs
index b0d1c1d..0d8f972 100644
--- a/src/detector/analysis.rs
+++ b/src/detector/analysis.rs
@@ -13,13 +13,13 @@ pub(super) fn analyse_buffer_by_stepped_windows(
     let mut total = 0u32;
     let mut len = 0u32;
 
-    for window in buf.windows(CHUNK_SIZE).step_by(CHUNK_STEP) {
+    for (i, window) in buf.windows(CHUNK_SIZE).enumerate().step_by(CHUNK_STEP) {
         let window_total = window.iter().copied().sum::<u16>();
         let window_avg = window_total / CHUNK_SIZE as u16;
         let diff = average.saturating_sub(window_avg);
 
         if diff > BLIP_THRESHOLD {
-            peaks.push(diff);
+            peaks.push(i as u16);
         } else {
             total += window_total as u32;
             len += CHUNK_SIZE as u32;