My exported video has unwanted reverb/echo, why?

[Laurie27968258q04l]

My export settings have not changed since yesterday when it worked properly and there is no reverb when I listen in Premiere. 

But when I export video now, it has unwanted reverb. Why? I can find other posts here with the same problem reported and no solutions offered.

If anyone can help me out, I'd appreciate it. Thanks.

[Arthur35861522emq7]

Hi, Laurie! I just faced this error and I managed to fix it. I'm not a professional, just trying to help. The unwated reverb/echo might be caused by:

1. The audio in your Premiere is MONO, but you exported it in STEREO with 2 channels, and perhaps the bitrate is related to the issue (This was my case and I think it's yours!)

2. The CONSTANT POWER between the audios. I'm not sure, but I noticed that the echo in my exported video was more powerful, especially in the sections where I used constant power;

3. It could also be an issue with your computer during rendering. I always try to close everything while exporting because, for some reason, using 100% of the memory and CPU can cause problems in the final video, especially affecting its quality.