Revert "fix(audio): use device defaults"

This reverts commit 9c3834e.

Author: BreadGenie

frontend/src/composables/useMeetingLogic.js

@@ -308,7 +308,11 @@ export function useMeetingLogic(meetingState, meetingId, options = {}) {
 	const buildMediaConstraints = async (videoEnabled, audioEnabled) => {
 		const constraints = {};
 
-		const audioConstraints = {};
+		const audioConstraints = {
+			echoCancellation: true,
+			noiseSuppression: true,
+			autoGainControl: true,
+		};
 
 		if (videoEnabled) {
 			constraints.video = {