diff --git a/src/components/views/rooms/VoiceRecordComposerTile.tsx b/src/components/views/rooms/VoiceRecordComposerTile.tsx
index 05beb3a0ca..9b7f0da472 100644
--- a/src/components/views/rooms/VoiceRecordComposerTile.tsx
+++ b/src/components/views/rooms/VoiceRecordComposerTile.tsx
@@ -53,11 +53,11 @@ export default class VoiceRecordComposerTile extends React.PureComponent<IProps,
             await this.state.recorder.stop();
             const mxc = await this.state.recorder.upload();
             MatrixClientPeg.get().sendMessage(this.props.room.roomId, {
-                body: "Voice message",
-                msgtype: "org.matrix.msc2516.voice",
-                //msgtype: MsgType.Audio,
-                url: mxc,
-                info: {
+                "body": "Voice message",
+                "msgtype": "org.matrix.msc2516.voice",
+                //"msgtype": MsgType.Audio,
+                "url": mxc,
+                "info": {
                     duration: Math.round(this.state.recorder.durationSeconds * 1000),
                     mimetype: this.state.recorder.contentType,
                     size: this.state.recorder.contentLength,
diff --git a/src/voice/RecorderWorklet.ts b/src/voice/RecorderWorklet.ts
index 8d6f1e9627..eab6bc5f21 100644
--- a/src/voice/RecorderWorklet.ts
+++ b/src/voice/RecorderWorklet.ts
@@ -19,8 +19,8 @@ import {percentageOf} from "../utils/numbers";
 
 // from AudioWorkletGlobalScope: https://developer.mozilla.org/en-US/docs/Web/API/AudioWorkletGlobalScope
 declare const currentTime: number;
-declare const currentFrame: number;
-declare const sampleRate: number;
+// declare const currentFrame: number;
+// declare const sampleRate: number;
 
 class MxVoiceWorklet extends AudioWorkletProcessor {
     private nextAmplitudeSecond = 0;
diff --git a/src/voice/VoiceRecording.ts b/src/voice/VoiceRecording.ts
index 716936f636..b0cc3cd407 100644
--- a/src/voice/VoiceRecording.ts
+++ b/src/voice/VoiceRecording.ts
@@ -116,7 +116,7 @@ export class VoiceRecording extends EventEmitter implements IDestroyable {
 
         // Dev note: we can't use `addEventListener` for some reason. It just doesn't work.
         this.recorderWorklet.port.onmessage = (ev) => {
-            switch(ev.data['ev']) {
+            switch (ev.data['ev']) {
                 case PayloadEvent.Timekeep:
                     this.processAudioUpdate(ev.data['timeSeconds']);
                     break;