fix: ignore empty buffers

src/modules/audioStreams.ts

@@ -97,12 +97,14 @@ export class MixedStream {
 		completion: Promise<void>;
 		stop: () => void;
 	} {
+		let stopCallback: () => void = () => { };
+		const completion = new Promise<void>((resolve) => {
+			if (source.readableLength <= 0) { return; }
+			
 			if (this.player.state.status === AudioPlayerStatus.Idle) {
 				this.setupPipeline();
 			}
 
-		let stopCallback: () => void = () => {};
-		const completion = new Promise<void>((resolve) => {
 			const mixerInput = this.mixer.createAudioInput({
 				channels: 2,
 				sampleRate: 48000,