UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36

Steps to reproduce the problem:
1. Load original file into an <Audio> object
2. Adjust tempo using JS .playbackRate parameter to 1.01
3. Play resulting audio

What is the expected behavior?
The audio is expected to play without distortion. Samples of output generated via Chrome, and the same output generated via firefox are included for reference.

What went wrong?
Distortion is introduced, when audio is played back with a playbackRate set to 1.01 (or any other). Each of the samples files are about 43 seconds in length, representing the same musical selection. The distortion can be detected at the following timings in the chrome example:
1) 0:08s
2) 0:20s
3) 0:23s
4) 0:31s
5) 0:36s
6) 0:41s 

Did this work before? N/A 

Does this work in other browsers? Yes

Chrome version: 71.0.3578.98  Channel: stable
OS Version: Windows10
Flash Version: none

In addition to firefox  ver: 64.0 (64-bit) This was tested without exhibiting the distortion, on Safari Version 12.0.2 (14606.3.4) and Edgge (Windows 10)  44.17763.1.0

The problematic distortion can also be observed in Chrome for mac versions 71.0.3578.98  and (Chrome Canary) Version 73.0.3665.0
 

Deleted: 1_original_file_100percent_tempo.mp3 679 KB

1_original_file_100percent_tempo.mp3 679 KB Download

Deleted: 2_chrome_audio_bug_101percent.mp3 1.0 MB

2_chrome_audio_bug_101percent.mp3 1.0 MB Download

Deleted: 3_firefox_version_no_bug_101percent.mp3 1.0 MB

3_firefox_version_no_bug_101percent.mp3 1.0 MB Download