From e8a2d1f2c9fe013cec1815f3621bd21b7931ec2a Mon Sep 17 00:00:00 2001
From: Scott Nonnenberg <scott@signal.org>
Date: Tue, 7 Dec 2021 00:21:55 -0800
Subject: [PATCH] Tell Chromium not to change gain during recording

---
 ts/services/audioRecorder.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ts/services/audioRecorder.ts b/ts/services/audioRecorder.ts
index 3a8c70dc5d07..eda90b743627 100644
--- a/ts/services/audioRecorder.ts
+++ b/ts/services/audioRecorder.ts
@@ -68,7 +68,10 @@ export class RecorderClass {
     this.recorder.onError = this.onError.bind(this);
 
     try {
-      const stream = await navigator.mediaDevices.getUserMedia({ audio: true });
+      const stream = await navigator.mediaDevices.getUserMedia({
+        // @ts-expect-error Typescript doesn't know about these important options
+        audio: { mandatory: { googAutoGainControl: false } },
+      });
       if (!this.context || !this.input) {
         const err = new Error(
           'Recorder/getUserMedia/stream: Missing context or input!'