grh's blog

New project: auphonic

Currently I am working on the auphonic project, which involves machine learning, audio signal processing, web development, open-source technologies and much more.

So don't expect many updates on my page, I will write about new things on the auphonic blog. You can subscribe to the auphonic feed or follow @auphonic on twitter.

Android 2.2 on an old HTC Magic (32B)

Because of the bad weather I tried to update my old HTC Magic phone to the new Android 2.2 today: I wanted to have the latest and greatest Android features Wink. However, some tweaks were necessary to get a real nice performance. One has to go through long forum posts to optimize the system etc., therefore here is a short summary. (These tips might be also helpful on other old phones, like the G1)
But it's worth the hassle: now the HTC Magic feels like an expensive, recent Desire phone !

Installing the system

How to become a Pure Data / GEM Professional

These are materials from a lecture about realtime audio and video programming (using GEM and Pure Data) at the University of Applied Science, FH Joanneum, for the master programme Media and Interaction Design.

Chaos Communication Congress in Eibiswald

Der Chaos Communication Congress 26C3 ist ein mehrtägiges Treffen der internationalen Hackerszene, organisiert vom Chaos Computer Club. Der Kongress findet heuer vom 27. bis 30. Dezember in Berlin statt und widmet sich in zahlreichen Vorträgen und Workshops technischen und gesellschaftspolitischen Themen.

Tethering Script for Android Phones and Gnome

Update: If you want to use _real_ tethering (without proxy), install CyanogenMod - a tutorial is in the Wiki !

Just a small shell script to get an internet connection on a standard gnome desktop (e.g. Ubuntu) via a proxy on an android phone (no root access needed!).

Advanced Psychoacoustics 2: Silent Subliminals

Do you want to influence a humans behavior ?
Or maybe induce some thoughts in the brain of all people listening to a specific radio channel ?
Then you found the right blog entry, which will present you a Pure Data program to change the attitude of your desired audience ... Wink

Alternative Suchmaschinen: nützliche Helfer neben Google

Nachdem der Standard einen Artikel über Suchmaschinen (siehe Coole Suchmaschinen abseits von Kaiser Google) von Wired kopiert hat (siehe Cool Search Engines That Are Not Google), habe ich mir auch mal die Mühe gemacht, einige nützliche weitere Suchhelfer hier vorzustellen. Es gibt nämlich eine Vielzahl von kleinen Helfern, welche Google sicher lange nicht ersetzen werden, jedoch aber in speziellen Bere

Matrix Library Benchmark Follow-Up

It seems that many people start using the flens C++ matrix library for scientific computation because of my Sparse Matrix Library Benchmark article. This blog post should be a small add on and discusses possible difficulties with flens.

UPDATE: flens changed very much in 2012 - see comment #3 by Michael Lehn! Now it is also header only like Eigen, so everything which is written here should be re-evaluated!

Problems with flens

Welcome to the new homepage

As a first blog entry I want to welcome everyone to my new webpage !

It took me quite some time to convert all the content from my old, static side to a real content management system (drupal in this case). However, the last week was very rainy and therefore it was more easy to work on the computer Wink.

So, first I want to give a small introduction into the structure of the new page.

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