Two Service Worker & Push Notification GOTCHAs

I have spent my day diving into Service Workers and Push Notifications since I wanted my webapp STQ (a German Star Trek trivia quiz app) to send out push messages to users. This has probably been the most wanted feature ever since. Addy Osmani’s guide on PWAs and this codelab by Sam Dutton on implementing push notifications are… Continue reading Two Service Worker & Push Notification GOTCHAs

Der Ton beim Tatort ist NICHT schlecht! Er ist zu gut!

Im Netz mehren sich die Beschwerden bezüglich einer vermeintlich schlechten Tonqualität beim Tatort: Nun fordert Prof. Ingo Kock, Dekan der Fakultät Ton an der Filmuniversität Potsdam-Babelsberg, dass 70-Jährige den Tatort-Ton abmischen. Dabei gibt es auch andere Lösungen.

Uni Köln Campus with VR View

Boris Smus and Google have released another great little helper for putting VR content on the web: VR View. VR Views allow you to embed 360 degree VR media into websites on desktop and mobile, and native apps on Android and iOS. Source: I tried it out today during a coffee break. I captured a “photosphere”… Continue reading Uni Köln Campus with VR View

SonicSphere – my first Gear VR App

I finally got my very first VR headset this weekend, a Gear VR. Since I needed a new cellphone and liked Samsung’s idea of getting a Gear VR with your Galaxy S7 for free, I decided to go for it.

Categorized as C#, Unity, VR

Should your web audio app have a limiter?

Did you come across digital clipping in web audio apps? I certainly did several times (mostly in my own apps though). This undesired effect occurs when you play several sound sources at the same time, which results in a signal that is louder than the maximum of 0 dBFS. Since a digital system is unable to… Continue reading Should your web audio app have a limiter?


I just wanted to mention that I did this thing called Beatsketch last year. It lets you make music on the web without having to know much about making music. BeatSketch from Sebastian Zimmer is a collaborative music production tool that Sebastian developed for his Master’s degree in Computer Science. A song consists of multiple… Continue reading Beatsketch

Emoji Piano

Has anybody created an emoji keyboard that’s actually a piano keyboard for writing musical notation? Wanted a quick way to tweet a melody. — AudioGrains (@AudioGrainsBlog) 5. Januar 2016 Inspired by @AudioGrains tweet, I made this little Emoji Piano. Emoji Piano lets you create simple melodies and encodes them with Unicode emojis which you can… Continue reading Emoji Piano