Midori HDMI Audio Break-Up via ADSL & 3G

[pi-dabbler]

I have a very peculiar situation when I use Midori browser 0.4.3 (Jessie OS) to run a website that plays a WAV file every 60 seconds. The WAV file consists of 5 beeps interspersed with short silence, total duration 3 seconds, 536kbyte file size, 1411kbps bit rate.

The website is deployed on the customer LAN, but is also accessible via ADSL and 3G via a secure VPN link.

When I have the RPi connected to a 100M LAN the WAV file works fine - it plays the 5 beeps without a problem. However when I connect via 3G VPN, the 5 beeps breaks up - eventually only 1 beep or maybe 1.5 beeps are played. Via ADSL, only the first beep is played.

Any idea why the link type seems to be causing issues playing back the WAV file?

Thank you

[pi-dabbler]

When I test with Chromium 48 behind an ADSL line, I hear 4 of the 5 beeps.

[pi-dabbler]

I changed the following in Midori preferences:

- enabled local cache storage for HTML5
- disabled the proxy
- increased Midori's local cache from 100M to 200M

So now at least 3 of the 5 beeps would play.

[pi-dabbler]

The beep file was converted from WAV to MP3, now at least 4 of the 5 beeps play via ADSL line, which is acceptable. Bandwidth utilisation dropped from about 80kbps to 12kbps.