diff --git a/packages/producer/scripts/integration-tests.json b/packages/producer/scripts/integration-tests.json
index 3a91aeccc2..1c5a9be944 100644
--- a/packages/producer/scripts/integration-tests.json
+++ b/packages/producer/scripts/integration-tests.json
@@ -28,6 +28,7 @@
   "src/services/htmlCompiler.probeCount.test.ts",
   "src/services/htmlCompiler.variableMedia.test.ts",
   "src/services/render/audioPadTrim.integration.test.ts",
+  "src/services/render/audioTruePeak.test.ts",
   "src/services/render/deliveryRender.integration.test.ts",
   "src/services/render/firstFrameStartingState.integration.test.ts",
   "src/services/render/hlsRender.integration.test.ts",
diff --git a/packages/producer/src/services/render/audioTruePeak.fakeFfmpeg.test.ts b/packages/producer/src/services/render/audioTruePeak.fakeFfmpeg.test.ts
index 4d2ee4618c..790f711509 100644
--- a/packages/producer/src/services/render/audioTruePeak.fakeFfmpeg.test.ts
+++ b/packages/producer/src/services/render/audioTruePeak.fakeFfmpeg.test.ts
@@ -104,9 +104,14 @@ describe("a local render's audio pad/trim", () => {
     expect(result.success).toBe(true);
     expect(scanFilters()).toEqual([
       "atrim=start_sample=0:end_sample=2880000,ebur128=peak=true",
-      "atrim=start_sample=2875200:end_sample=5760000,ebur128=peak=true",
-      "atrim=start_sample=5755200,ebur128=peak=true",
+      "atrim=start_sample=91200:end_sample=2976000,ebur128=peak=true",
+      "atrim=start_sample=91200,ebur128=peak=true",
     ]);
+    const seeks = vi
+      .mocked(runFfmpeg)
+      .mock.calls.filter(([args]) => args.some((arg) => arg.includes("ebur128")))
+      .map(([args]) => (args[0] === "-ss" ? args[1] : null));
+    expect(seeks).toEqual([null, "58", "118"]);
   });
 });
 
diff --git a/packages/producer/src/services/render/audioTruePeak.test.ts b/packages/producer/src/services/render/audioTruePeak.test.ts
index 0d5d4ccd31..8e3f45e8f9 100644
--- a/packages/producer/src/services/render/audioTruePeak.test.ts
+++ b/packages/producer/src/services/render/audioTruePeak.test.ts
@@ -74,6 +74,22 @@ describe.skipIf(!hasFfmpeg)("measureTruePeakDbfs in segments", () => {
     60_000,
   );
 
+  it.each([
+    ["ends on a segment cut", CUT - BURST.length],
+    ["starts where the last segment's scan starts", 2 * CUT - BLOCK],
+  ])(
+    "reads an AAC peak that %s exactly as one whole-file pass",
+    async (_, at) => {
+      const wav = monoWav(`aac-burst-${at}`, at);
+      const aac = wav.replace(/\.wav$/, ".m4a");
+      execFileSync(getFfmpegBinary(), ["-nostdin", "-v", "error", "-i", wav, "-c:a", "aac", aac]);
+      const [whole, segmented] = await bothWays(aac);
+      expect(whole).toBeGreaterThan(-10);
+      expect(segmented).toBe(whole);
+    },
+    60_000,
+  );
+
   it("reads silence as -inf", async () => {
     expect(await bothWays(monoWav("silence"))).toEqual([
       Number.NEGATIVE_INFINITY,
diff --git a/packages/producer/src/services/render/audioTruePeak.ts b/packages/producer/src/services/render/audioTruePeak.ts
index 9eec1f9014..2a10923355 100644
--- a/packages/producer/src/services/render/audioTruePeak.ts
+++ b/packages/producer/src/services/render/audioTruePeak.ts
@@ -28,6 +28,7 @@ async function scanTruePeak(
   trim: string,
   timeoutMs: number,
   signal?: AbortSignal,
+  seekSeconds = 0,
 ): Promise<TruePeakScan> {
   let firstBlock: number | undefined;
   let laterBlocks = Number.NEGATIVE_INFINITY;
@@ -45,7 +46,21 @@ async function scanTruePeak(
     }
   };
   const result = await runFfmpeg(
-    ["-i", audioPath, "-map", "0:a:0", "-vn", "-af", `${trim}ebur128=peak=true`, "-f", "null", "-"],
+    [
+      ...(seekSeconds > 0 ? ["-ss", String(seekSeconds)] : []),
+      ...[
+        "-i",
+        audioPath,
+        "-map",
+        "0:a:0",
+        "-vn",
+        "-af",
+        `${trim}ebur128=peak=true`,
+        "-f",
+        "null",
+        "-",
+      ],
+    ],
     { signal, timeout: timeoutMs, onStderr: readLines },
   );
   if (!result.success) {
@@ -87,12 +102,17 @@ export async function measureTruePeakDbfs(
       // A later segment starts one block early and drops that block: its oversampler starts
       // from mirrored history there, and the previous segment stops 16 samples short.
       const start = k === 0 ? 0 : cut(k) - block;
-      const end = k === count - 1 ? "" : `:end_sample=${cut(k + 1)}`;
+      // Decoding from the top costs a segment everything before it: seek to a whole second (an exact
+      // sample) one second early, so the AAC decoder has settled before the segment's first sample.
+      const seekSeconds = Math.max(0, Math.floor(start / sampleRate) - 1);
+      const skipped = seekSeconds * sampleRate;
+      const end = k === count - 1 ? "" : `:end_sample=${cut(k + 1) - skipped}`;
       return scanTruePeak(
         audioPath,
-        `atrim=start_sample=${start}${end},`,
+        `atrim=start_sample=${start - skipped}${end},`,
         timeoutMs,
         segmentSignal,
+        seekSeconds,
       );
     }),
   ).catch((error: unknown) => {