Category Archives: General

In the beginning of December, Frederik was born. He’s growing up nicely. At the end of December, I succesfully defended my PhD thesis (see earlier post) and was awarded a PhD for my research titled “Notch signaling in forebrain neurogenesis”. … Continue reading →

The latest addition to our little sprouting family: Frederik Jie Bultje. Born December 12th, 2010 in New York.

Jason does a great job explaining what we did and how we did it.

Now that the hype is over, let’s talk the real deal. How good is Google’s VP8 video codec? Since “multiple independent implementations help a standard mature quicker and become more useful to its users”, me and others (David for the … Continue reading →

I previously posted about my ongoing studies on the WMA Voice codec. A basic implementation of the actual codec was submitted and accepted/applied into FFmpeg SVN. Speech codecs work at ultra-low bitrates (~10kbps and lower) and suffer from obvious encoding … Continue reading →

I blogged about it before, but let’s remind all students that you can work on FFmpeg this summer, and earn money ($5000) while doing so. The deadline is this Friday, the 9th. Google’s Summer-of-Code is a yearly recurring event where … Continue reading →

It’s that time again – the time where Google will announce their Summer of Code! In the summer of code, students can work on free software projects during their summer break, and make $4500 while they’re at it. FFmpeg has … Continue reading →

Since my last post,I’ve completed my first version of a free (as in speech) WMA-Voice/Speech codec. The patch is available on the FFmpeg mailinglist. As described previously, the codec has some very interesting behaviour, e.g. related to integer rounding. At … Continue reading →

I’ve recently become interested in codecs. We all know the brilliant FFmpeg project, which has provided free (as per FSF definition) implementations of a variety of popular codecs, such as Windows Media or MPEG/H.26x. I’ve started to study one member … Continue reading →

In daily life, I’m a Ph.D. student studying the development of the central nervous system. A few months ago, the first paper was released with my name on it (as a second author), and just yesterday, I received notification of … Continue reading →