Sound · The Blog of Boban Acimovic

Akrapovič sport exhaust installation on BMW K 1600 GT

Is Akrapovič sport exhaust just a nice add-on for BMW K 1600 GT or does it do something more? What kind of sound does it make? Does it change the behavior of the bike? It was quite difficult to find these information online but I still decided to give it a try. Hence, let’s share some more information about it.

Exhausts are packed flawlessly. I haven’t checked if they are really 3.3kg lighter than the factory ones, but I could feel the difference by lifting them. Titanium and carbon finish are mint, simply Akrapovič quality.

alpine

Test of Alpine MotoSafe and Quies Moto earplugs

Alpine MotoSafe Tour and Race

Alpine Hearing Protection is founded 1994 in Netherlands as a producer of customized earplugs for professional applications. They claim their motorcyclists earplugs are the best for the motorway and racing circuit. Their earplugs have special filter which reduces wind noise while keeping the sound or the engine and helmet communicator.

Their main products are MotoSafe Tour (with black filter) and Race (with red filter) which provide 17dB and 20dB noise reduction respectively. MotoSafePro that you can see on the pictures is actually a set of both of these earplugs with included carrying bag, insertion stick and cleaning spray. Further, Alpine sponsors MotoGP so they have a special edition of MotoSafe Race with MotoGP branding (black earplugs with red filter).

linux

Firefox audio crackling and popping on Linux Mint

This problem was bugging me for quite a while and today I finally decided to address it. There are lot of advices online to try to run Firefox in safe mode and see if that fixes the problem, so I tried that first but it didn’t help. Safe mode actually just turns off extensions, but in my case it didn’t help.

I found out that the easiest way to reproduce the problem was to run YouTube video in one window and after that open another window with eBay. After few seconds crackling and popping always started. I run audio mainly via HDMI to my monitor, but as I have external DAC I decided to try that audio output and yes, it worked without problems. So, it seemed something was wrong with PulseAudio over HDMI.