Update index.js

index.js

@@ -293,9 +293,9 @@ async function ytAPI(url) {
           let videoStream = await ytdl(ID, { filter: 'audioandvideo', quality: 'highestvideo' });
           let audioStream = await ytdl(ID, {filter: "audioandvideo", quality:"lowest"})
           let video = await ytdl(ID, { filter: 'videoonly', quality: 'highestvideo' })
-          let audio = await ytdl(ID, { filter: 'audioonly', quality: 'lowestaudio' })
+          let audio = await ytdl(ID, { filter: 'audioandvideo', quality: 'lowestaudio' })
           video = await streamToBuffer(video)
-          audio = await streamToBuffer(audio)
+          audio = await convertMp4ToAudio(await streamToBuffer(audio))
           let buffmerge = await mergeVideoAndAudio(video, audio)
           buffmerge = await fileDitch(buffmerge)
           let buffermp4 = await streamToBuffer(videoStream)