From 63496d05a2f78b061f6d848fd00ece223acd7514 Mon Sep 17 00:00:00 2001
From: kcfancher <keli@keisi.co>
Date: Sat, 28 Mar 2026 14:06:40 -0400
Subject: Fix transcription sample-rate handling (#740)

Fix for #703.

Adds an optional sampleRate parameter to the decodeAudioToFloat32() function. The caption transcriber passes in a value of 16000 to prepare audio in the format Whisper expects.
---
 apps/web/src/lib/media/audio.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'apps/web/src/lib/media')

diff --git a/apps/web/src/lib/media/audio.ts b/apps/web/src/lib/media/audio.ts
index 6f789301..e96f158b 100644
--- a/apps/web/src/lib/media/audio.ts
+++ b/apps/web/src/lib/media/audio.ts
@@ -34,10 +34,12 @@ export interface DecodedAudio {
 
 export async function decodeAudioToFloat32({
 	audioBlob,
+	sampleRate,
 }: {
 	audioBlob: Blob;
+	sampleRate?: number;
 }): Promise<DecodedAudio> {
-	const audioContext = createAudioContext();
+	const audioContext = createAudioContext({ sampleRate });
 	const arrayBuffer = await audioBlob.arrayBuffer();
 	const audioBuffer = await audioContext.decodeAudioData(arrayBuffer);
 
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