Monday, July 20, 2015

app-free miniatures for mobiles?

Earlier this year, the radio aporee app was blocked on iTunes because I've missed to pay the developer fee, and on Google Play, because I've missed to confirm some longish changes in some terms of service. I'm not a fan of apps anyway, I tend to think web, networking and open standards... But this accidents made me angry. I'd love to escape both of these app-ecosystems, and leave app-stores etc. behind.

So, after this experience I've started to look into HTML5, whether it could replace the aporee app at all. The answer is yes and no... Web apps cannot access local storage beyond some (low) limits, which is bad since cost-saving WiFi syncronisation of sounds before a walk is not possible. Further, IOS safari does not autoplay sounds unless you install the URL as desktop app (didn't know before). IOS also prohibits volume control from programs. But has great HTML5 performance. On Android, all that works, but it sucks performance-wise, at least on older phones, older Androids, and whatever.

So I decided to find the lowest common denominator:
  • pure online mode, i.e. all sounds will be loaded over the net
  • no fade-in, fade-out, or crossfade, as implemented within the app, only off/on
  • stripped down user interface with very few functions
This works, but fails when the network is slow, your phone is old, and for some unclear reasons. But I've made some walks in front of my door, which where promising, sounds loaded quickly over 3G, a few little delays didn't stop the show, GPS worked fine most of the time. After all, I'll decided to continue with the app-store-free web app for the miniatures.

Try it out at and let me know if it works for you.

SELECT nearby miniatures

PLAY selected miniature while walking

Tuesday, May 12, 2015

non-geographic topographic maps

75x75 map, 100 learning epoches
On radio aporee, I'm researching the possibility to create non-geographical topographic maps out of the sounds and their meta data. Since it is impossible to create an exact 2-D image of n-dimensional data, we rather try to find tendencies, proximity and clusters of similarity. Distance implies difference, but nearness does not necessarily imply resemblance. Lines and structures between areas indicate divergence, like rivers and mountains separate nearby areas in real landscapes. How meaningful these maps can be depends on the pattern we choose for comparision. Read more...

Friday, February 20, 2015

distant readings

distant reading - excerpt of a spontaneous live session on radio aporee, by OR poiesis (Maribor, Slovenia) & unosonic (Berlin, Germany). Sounds and texts were not synchronized nor negotiated in advance, it's more or less a result of moods, atmosphere amd the very moment. to be continued. The track consists of 2 live sources (OR poiesis and I, from our respective locations) and a background from radio aporee's playlist. So it's actually a toposonic mix of 3 layers. Since we experience up to 30 sec of buffering, i.e. delay between the sending source and its audibility on the radio, it's quite difficult to perform just in time. Anyway, I'd say it works nice.

Sunday, November 23, 2014

Ringo Cafe

Sanderstr., Berlin, April 2008,

The sea has passed, to plot is possible, given detachment and a careful angle, all destinations are predictable. And given too, the confidence of distance, strangers may take a hundred neural journeys [...] And even though, on any printed landscape, directions never tell you where to go, maps are an evening comfort to the traveller, a pencil line can quickly take him home.

Some places matter. When they go missing, threads and fragments of ephemeral interwoven biographies may tear away. Without: who knows what's hidden in this word? 

a quiet monday, 5.10.2009

public viewing, 20.9.2009

ventilation pipe, men's toilet, 22.11.2014

last coffee, familiar sounds, 22.11.2014

Tuesday, August 12, 2014

colabo radio aporee

Tonight, Tuesday August 12, from 7pm to 6am Berlin time, radio aporee is on air on FM 88.4 (Berlin) and 90.7 MHz (Potsdam),  and of course online on radio aporee.

As some already know, the permanent radio of radio aporee plays random selections of sounds from the global map -- unless listeners tune in. then a bunch of "agents" start working backstage, bringing back sounds from listener's locations, scanning open microphones (from the locusonus project and others), creating mixes based on text searches, phones calls etc. pp.
 In a way, this radio "listens" to its listeners, their activities, locations, various events, sensors, and so on. recently, "live" has become important, i.e. entering the more or less archive-based stream with ad-hoc performances, sonic interventions from daily situations, or just a few minutes of actual ambience. some are doing that for a few month now, see the log of some past sessions at (the radio has an archival function which can record a session to automatically).

although that all is unstable media, and highly experimental, it has proven to work quite nice. so, the idea in mind is a participative radio, created by and shared among interested persons and parties, in between live and archive, sites and situations. it's not about the usual forms and formats of radio production, rather the transient, ephemeral and unexpected. Tune in tonight and get an idea!

Wednesday, July 16, 2014

World Listening Day 2014

"Listen To You"

radio aporee participates in the 5th World Listening Day.
read more about the WLD at the World Listening Project's website

you are invited to participate, please send your audio recording to radio aporee, and help creating a sonic snapshot of the world, on July 18, 2014:

Monday, May 12, 2014

mobile streaming continued

a bit of tech info today...

while the raspberry PI (see older posts below) is a nice, rather inexpensive and portable solution for mobile radio streaming, it has shown some problems during daily use. first, it sometimes crashes for no obvious reason, leaving the system in a unusable state. may have been a problem of the SD-card in use, not sure. anyway, it's good to backup a working configuration and have a second card at hand, otherwise the session may be over. second, since it has no display or keyboard, and has to be controlled from a phone app over the internet, it can be quite confusing because of drops and delays, depending on the available network. I think a PI based setup is fine for semi-/stationary audio broadcasts, but for true mobile performances, something else is needed.

so, I've digged into the matter a bit deeper, and this is the best option I've found so far:

studio in a pocket
it's a used iphone 4s, a tascam IXJ2 preamp, and a pair of DIY microphones based on Primo EM172 capsules. the koalaSan streaming app has proven to work stable and reliable. the whole thing can be controlled from the phone's browser, with the radio aporee web app.

metada editor for live sessions
control streaming from html5 web app
since a while, i'm using it often for short live sessions on radio aporee. I'm quite pleased with the results and overall handling. the connection between phone and preamp is a bit fragile, maybe it'd be better to use a cable or fix it with something.

if you like, you can always find a log of some of the most recent sessions at

anyway, now that some of the tech problems are adressed, i'll try to concentrate on what all this is meant for. new radio... stay tuned...