tags: digital

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radio (2), WAMU (1), response (1), math (1), broadcast flag (1), user interface (1), network (1), humanitarian (1), touch (1), Galois (1), instrument (1), music (1), NPR (1),

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DHN | Leveraging digital networks for humanitarian response

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The purpose of the Digital Humanitarian Network (DHN) is to leverage digital volunteers in support of 21st century humanitarian response. More specifically, the aim of this network-of-networks is to form a consortium of Volunteer & Technical Communities (V&TCs) and to provide an interface between formal, professional humanitarian organizations and informal yet skilled-and-agile volunteer & technical networks.

url: http://digitalhumanitarians.com/

type: unknown, format: page

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Audiopad

hands on Audiopad Audiopad is a composition and performance instrument for electronic music which tracks the positions of objects on a tabletop surface and converts their motion into music. One can pull sounds from a giant set of samples, juxtapose archived recordings against warm synthetic melodies, cut between drum loops to create new beats, and apply digital processing all at the same time on the same table.

url: http://www.jamespatten.com/audiopad/

type: project, format: page

Digital Audio Broadcasting

The member newsletter from WAMU brings to my attention that the FCC has authorized digital audio broadcasting (DAB).

It's about time. I've been wondering about this for a while.

Also they ignore the broadcast flag issue.

In other news the Copyright Royalty Board has set rates for Internet simulcasts which will affect non-commercial radio such as SomaFM.

Thankfully NPR is fighting back.

What About Digital Radio

I was just thinking the other day. We are moving from an analog world to a digital one. Here are some examples: type writing to word processing, cellphones, television, LPs to CDs, circuit switched to packet switched networks, voice to VOIP. So why is it that AM/FM radio is still analog?

With error correcting algorithms i think the reception of radio would be much clearer. (Error detection is not good enough, since the radio will never ask the broadcaster for a retransmit.)

Error detection and correction is based on the work of Galois [1], who invented finite fields and branch of abstract algebra. Here's a good worksheet.

  1. Did you know that Galois died at the age of 20 in a duel?