April 2005
Intermediate to advanced
270 pages
7h 13m
English
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Podcasting Weather Forecasts
The podcasting technique described in Chapter 4 is a hotbed of development at the moment. One idea put forward was to use it to deliver weather forecasts via a web service and a text-to-speech application.
Jorge
Velázquez put together a script to do just that. Released
at http://www.jorgev.com/archives/000115.html,
it requires an account with weather.com and an installation of
Lame
(from http://lame.sourceforge.net/) and
text2wave on the server.
How to Use It
The URL accepts two parameters,
locid
and
unit
.
The locid is the weather.com location identifier
for the city you require. For U.S. cities, this can be a zip code,
and for non-U.S. cities, it is a special weather.com code. (e.g.,
92126 for San Diego, CA, or ITXX0067 for Rome, Italy). The unit
parameter is optional and can be either m for
metric or s for imperial measurements. It defaults
to imperial.
The location code for Florence, Italy, is ITXX0028, so the URL for the feed would be http://www.example.com/cgi-bin/weather.cgi?locid=ITXX0028. Simple.
The Code Itself
Jorge’s code is, in his own words, very simple. This is how he describes it:
A brief explanation of how the script works, it’s actually quite simple: I first call into weather.com’s XML Data Feed. Then I use XPath to extract the data in which I am interested. I format this information into a text file, which I then pass onto the text2wave utility which performs the text-to-speech conversion. Finally, since wav files are so huge, I convert ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.