diff --git a/src/components/video-editor/timeline/AudioWaveform.tsx b/src/components/video-editor/timeline/AudioWaveform.tsx
index ebb4696e..5c809768 100644
--- a/src/components/video-editor/timeline/AudioWaveform.tsx
+++ b/src/components/video-editor/timeline/AudioWaveform.tsx
@@ -1,6 +1,6 @@
 import { useTimelineContext } from "dnd-timeline";
 import { memo, useCallback, useEffect, useRef, useState } from "react";
-import type { AudioPeaksData } from "./useAudioPeaks";
+import type { AudioPeaksData } from "./core/timelineTypes";
 
 interface AudioWaveformProps {
 	peaks: AudioPeaksData;
diff --git a/src/components/video-editor/timeline/components/viewport/TimelineCanvas.tsx b/src/components/video-editor/timeline/components/viewport/TimelineCanvas.tsx
index e02dfb1c..c268322b 100644
--- a/src/components/video-editor/timeline/components/viewport/TimelineCanvas.tsx
+++ b/src/components/video-editor/timeline/components/viewport/TimelineCanvas.tsx
@@ -7,8 +7,7 @@ import {
 	getTimelineViewportStretchFactor,
 	TIMELINE_AXIS_HEIGHT_PX,
 } from "../../timelineLayout";
-import type { AudioPeaksData } from "../../useAudioPeaks";
-import type { TimelineRenderItem } from "../../core/timelineTypes";
+import type { AudioPeaksData, TimelineRenderItem } from "../../core/timelineTypes";
 import { isAnnotationTrackRowId, isAudioTrackRowId } from "../../core/rows";
 import TimelineAxis from "../axis/TimelineAxis";
 import PlaybackCursor from "../playhead/PlaybackCursor";
diff --git a/src/components/video-editor/timeline/components/viewport/TimelineCanvasRows.tsx b/src/components/video-editor/timeline/components/viewport/TimelineCanvasRows.tsx
index 2e79633f..1acafc15 100644
--- a/src/components/video-editor/timeline/components/viewport/TimelineCanvasRows.tsx
+++ b/src/components/video-editor/timeline/components/viewport/TimelineCanvasRows.tsx
@@ -6,7 +6,7 @@ import glassStyles from "../../ItemGlass.module.css";
 import Item from "../../Item";
 import Row from "../../Row";
 import { CLIP_ROW_ID, ZOOM_ROW_ID } from "../../core/constants";
-import type { TimelineRenderItem } from "../../core/timelineTypes";
+import type { AudioPeaksData, TimelineRenderItem } from "../../core/timelineTypes";
 import {
 	getAnnotationTrackIndex,
 	getAnnotationTrackRowId,
@@ -15,7 +15,6 @@ import {
 	isAnnotationTrackRowId,
 	isAudioTrackRowId,
 } from "../../core/rows";
-import type { AudioPeaksData } from "../../useAudioPeaks";
 import ClipMarkerOverlay from "../overlays/ClipMarkerOverlay";
 
 const HINT_CLIP = "Press C to split clip";
diff --git a/src/components/video-editor/timeline/core/timelineTypes.ts b/src/components/video-editor/timeline/core/timelineTypes.ts
index ae5b1da8..2222f7cc 100644
--- a/src/components/video-editor/timeline/core/timelineTypes.ts
+++ b/src/components/video-editor/timeline/core/timelineTypes.ts
@@ -37,3 +37,8 @@ export interface TimelineRenderItem {
 	speedValue?: number;
 	variant: "zoom" | "trim" | "clip" | "annotation" | "speed" | "audio";
 }
+
+export interface AudioPeaksData {
+	durationMs: number;
+	peaks: Float32Array;
+}
diff --git a/src/components/video-editor/timeline/useAudioPeaks.ts b/src/components/video-editor/timeline/useAudioPeaks.ts
index 587659fd..9f6dfc29 100644
--- a/src/components/video-editor/timeline/useAudioPeaks.ts
+++ b/src/components/video-editor/timeline/useAudioPeaks.ts
@@ -1,15 +1,9 @@
 import { useEffect, useRef, useState } from "react";
+import type { AudioPeaksData } from "./core/timelineTypes";
 
 /** Number of peak bins to produce — enough for smooth display at any zoom. */
 const TARGET_PEAK_COUNT = 2048;
 
-export interface AudioPeaksData {
-	/** One normalised amplitude value (0–1) per bin, covering the full duration. */
-	peaks: Float32Array;
-	/** Total duration of the decoded audio in milliseconds. */
-	durationMs: number;
-}
-
 /**
  * Decode audio from a media file URL and produce a fixed-length array of peak
  * amplitudes suitable for waveform visualisation.