Monday June 29, 2009

Online-Workshop: Besserer Klang mit wenig Aufwand von der niche09

This post is in German because it's about a Podcasting workshop in German language. If you want this workshop to be in English, feel free to gather a bunch of people and invite me to do it for you.

Am 20.6.2009 fand in München das Podcamp München statt, besser bekannt als niche09. An diesem Samstag trafen sich über 100 Podcast-Begeisterte in München und tauschten sich zu verschiedenen Themen rund um's Podcasting aus. Das Programm bot einen schönen Querschnitt durch das Thema und im http://www.niche09.de/">niche09-Blog kann man sich die Workshops noch in Form von verschiedenen Aufzeichnungen auch nachträglich und online kostenlos zu Gemüte führen. An dieser Stelle vielen Dank an Alex Wunschel, die Sponsoren und die vielen Helfer, die diese wirklich schöne Konferenz zustande gebracht haben!

Alex war auch so nett, mich einen Workshop zum Thema "Besserer Klang mit wenig Aufwand: Tipps & Tricks beim Podcast-Produzieren" moderieren zu lassen. Ein Audio-Mitschnitt samt synchroner Folien ist nun als Video erhältlich, in der Hoffnung, dass dieser Workshop auch online vielen Leuten bei der Produktion ihrer Podcasts helfen möge:

Den Workshop könnt Ihr unten direkt anschauen, als Quicktime-Video für den Rechner oder als iPhone-Video herunterladen, sowie Euch die Folien zum Workshop anschauen.

Hier noch ein paar Links, Anmerkungen und Korrekturen zum Workshop. Keine Angst, ich bekomme von keinem der genannten Hersteller irgendwas, sondern spreche nur aus eigener Erfahrung bzw. verlässlichen Quellen.

• Nicht wundern, der "halbstündige Workshop" ist nur ein Witz, weil die Konferenz mit ca. 30 Min. Verspätung angefangen hat. Der Workshop war von vornherein auf 1 Stunde angelegt :).
• Für mobile Aufnahmen ist das Zoom H2 und sein größerer Bruder Zoom H4 von Samson sehr beliebt. Für vergleichsweise wenig Geld erhält man eine sehr gute Aufnahme-Qualität und eine praktische, mobile Handhabung. Darüber hinaus kann das Gerät kann auch als gutes USB-Mikrofon dienen.Im Workshop lobte jemand auch den Audio-Recorder von Olympus (nicht sicher, ob dieses Modell gemeint war).
• Die USB-Audio-Interfaces von M-Audio sind gut und günstig und für den Einstieg sehr empfehlenswert. Nach einiger Zeit bin ich jedoch aufgrund eines Tests im Professional Audio-Magazin zum Native Instruments Audio Kontrol 1 gewechselt, das mich durch sehr gute, rauschfreie Audio-Qualität sowohl bei der Aufnahme als auch bei der Ausgabe über Kopfhörer und Aktivboxen beeindruckt hat.
• Tim Pritlove vom Chaos Radio Express und MobileMacs empfahl uns die Beyerdynamic DT 297 Headsets für die stressfreie Aufnahme von mehreren Podcastern auf einmal, da die Mikros guten Klang bieten, man jede Stimme einzeln aufnehmen kann und die Kopfhörer präzises Feedback für die Sprecher erlauben. Alleine das richtige Audio-Interface/Mischpult/Vorschaltgerät, das jedem einzelnen seinen eigenen Feedback-Kanal gönnt und gleichzeitig eine getrennte Aufnahme ermöglicht, scheint noch ein ungelöstes Problem zu sein. Vielleicht hilft ein eigener Mehrkanal-Kopfhörerverstärker?
• Im MacCast 2009.04.14 gibt es ein schönes Interview mit Heroes-Star David H. Lawrence XVII, der u.a. auch ein eigenes Studio betreibt und vom Radio kommend zum Podcaster geworden ist. Er hat viele nützliche Tipps parat und empfiehlt u.a. das Audio-Technica AT2020, insbesondere die USB-Variante AT2020 USB. Im Workshop hatte ich leider "Audio-Technica" mit "Behringer" als Hersteller verwechselt, ich bitte um Entschuldigung für die Verwirrung...
• Auch in unserem HELDENFunk-Podcast verwenden wir das Audio-Technica AT2020, sowie ein paar Røde NT5 und können diese sehr empfehlen. Mehr Details gibt es in einem eigenen HELDENFunk behind the Scenes-Artikel. Inzwischen haben wir unser Setup um ein Mark of the Unicorn (MOTU) 8pre 8-Fach Firewire Audio-Interface erweitert, das wir ebenfalls sehr empfehlen können.

Ich hoffe, dieser Workshop ist trotz der Länge von 1 Stunde für Euch nützlich. Schickt mir Euer Feedback, Fragen und Anregungen, bei der nächsten Konferenz (niche10?) bin ich gerne wieder dabei!

"Online-Workshop: Besserer Klang mit wenig Aufwand von der niche09" has been brought to you by Constantin's Blooog.
This entry was created on 2009-06-29 14:24:44.0 PST and is associated with the following tags:
audio german klang niche09 podcasting presentation produktion qualität ton
You're welcome to use this Permalink , add a comment below or send your feedback to constantin at sun dot com.
Comments [5]

Tuesday June 16, 2009

Paris in the Clouds: A CloudCamp Paris report

Last week, Eric Bezille invited me to Paris for a couple of Cloud Computing related meetings and to help out with CloudCamp Paris. Paris in the clouds, what a nice experience!

This was also a great opportunity to try out the audio recording features of my LiveScribe Pulse pen. This pen not only can record what you write (on special dot paper), it can also record what has been said while you write, creating links between the words you write and the points in time of the audio recording. Very cool. You can then tap on the words in your notebook and the pen will play back the associated audio. Great for conferences, and I wish I had had this pen during my university times :). You can also export your notes including the audio as a flash movie and share them on the net, which is what I'm going to do below.

Intro Session and Lightning Talks

The CloudCamp was kicked off by a representative of Institut Telecom, the location sponsor of CloudCamp Paris. Sam Johnston gave a short and sweet introduction to Clouds, providing some definitions, examples and also some contrarian views, finishing with a short video on how easy it is to set up your account in the cloud.

A series of lightning talks by the sponsors gave us some interesting news, insights and context for the conference:

• Eric Bezille from Sun showed us what's behind Sun's cloud activities.
• Arvid Fossen from Aserver.com talked about how they provide datacenters as a service to their clients. Wanna have your own cloud? Go buy it as a turnkey solution!
• Matthew Hugo (Not sure if I got that name right...) from Runmyprocess.com showed some nice examples of integration between different cloud services.
• Josh Fraser, VP of Business Development at Rightscale showed some impressive examples of how the cloud can neatly adjust to your business demand curve.
• Peter Martin from Orange Business Services showed us some pictures of his kids who use clouds based services today (Facebook anyone?), pointing out that when they'll grow up to be CEOs, CIOs and decision makers, they're most likely not going to operate their own datacenters. Food for thought for the sceptics who think Cloud Computing is just a temporary hype or not ready (yet) for prime time: Just wait 'til your kids grow up. It may happen sooner than that, though, given the enthusiasm of the more than 100 people in the room...
• Finally, Owen Garrett from Zeus provided a really good reason for using a software load balancer: Take back control of your application!

Here are two pencasts with audio and notes taken during the above lightning talks. The first one covers the intro until and including the Rightscale talk, the second one starts with the Orange talk and finishes with the Zeus talk.

The Unpanel

Cloud Architecture Session

Wrapping It All Up

After the breakouts, a surprisingly large number of attendees were still there despite being late into the evening to gather and listen to the summaries of the different sessions. Here's the recording, including some notes to help you navigate.

All in all, this was a great event. A big thank you to Eric and his team in Paris and the sponsors for setting this up! More than ever, it became clear to me how significant the trend towards cloud computing is and how many talented people are part of this community, driving the future of IT into the sky.

Update: Eric now published his own summary with a lot of background information. It's a great read, so check it out!

"Paris in the Clouds: A CloudCamp Paris report" has been brought to you by Constantin's Blooog.
This entry was created on 2009-06-16 13:57:08.0 PST and is associated with the following tags:
cloud community computing livescribe mysql notes paris pulse sun virtualization
You're welcome to use this Permalink , add a comment below or send your feedback to constantin at sun dot com.
Comments [4]

Monday June 15, 2009

OpenSolaris meets Mac OS X in Munich

Last Wednesday, Wolfgang and I had the honor to present at "Mac Treff München", Munich's local Mac User Group. There are quite a few touching points between OpenSolaris and Mac OS X, such as ZFS, DTrace and VirtualBox, we thought it would be a good idea to contact them out of our Munich OpenSolaris User Group and talk a little bit about OpenSolaris.

Breaking the Ice

We were a little bit nervous about what would happen. Do Mac people care about the innards of a different, seemingls non-GUIsh OS? Are they just fanboys or are they open to other people's technologies? Will talking about redundancy, BFU, probes and virtualization bore them to death?

Fortunately, the 30-40 people that attended the event proved to be a very nice, open and tolerant group. They let us talk about OpenSolaris in General including some of the nitty-grittyness of the development process, before we started talking about the features that are more interesting to Mac users. We then talked about ZFS, DTrace and VirtualBox:

ZFS for Mac OS X (or not (yet)?)

Explaining the principles behind ZFS to people who are only used to draging'n'dropping icons, shooting photos or video and using computers to get work done, without having to care about what happens inside, is not easy. We concentrated on getting the basics of the tree structure, copy-on-write, check-summing and using redundancy to self-heal while using real world examples and metaphors to illustrate the principles. Here's the deal: If you have lots of important data (photos, recording, videos, anyone?) and care about it (content creators...), then you need to be concerned about data availability and integrity. ZFS solves that, it's that simple. A little animation in the slides were quite helpful in explaining that, too :).

The bad news is that ZFS seems to have vanished from all of Apple's communication about the upcoming Mac OS X Snow Leopard release. That's really bad, because many developers and end-users were looking forward to take advantage of it.

The good news is that there are still ways to take advantage of ZFS as a Mac User: Run an OpenSolaris file server for archiving your data or using it as a TimeMachine store, or even run a small OpenSolaris ZFS Server inside your Mac through VirtualBox.

DTrace: A Mac Developer/Admin's Heaven, Albeit in Jails

Next, we dove a little bit into DTrace and how it makes the OS really transparent for admins, developers and users. In addition to the dtrace(1) command, Apple created a nice GUI called "Instruments" as part of their XCode development environment that leverages the DTrace infrastructure to collect useful data about your application in realtime.

Alas, as with ZFS, there's another downer, and this time it's more subtle: While you can enjoy the power of DTrace in Mac OS X now, it's still kinda crippled, as Adam Leventhal pointed out: Processes can escape the eyes of DTrace at will, which counters the absolute observability idea of DTrace quite massively. Yes, there are valid reasons for both sides of the debate, but IMHO, legal things should be enforced using legal means, and software should be treated as software, meaning it is not a reliable way of enforcing any license contracts - with or without powerful tools such as DTrace.

OpenSolaris for all: VirtualBox

Finally, a free present to the Mac OS X community: VirtualBox. I still get emails asking me to spend 80+ dollars on some virtualization software for my Mac. There are at least two choices in that price range: VMware Workstation and Parallels. Well, the good news is that you can save your 80 bucks and use VirtualBox instead.

This may not be new to you, since as a reader of my blog you've likely heard of VirtualBox before, but it's always amazing for me to see how slowly these things spread. So, after reading this article, do your Mac friends a favour and tell them they can save precious money buy just downloading VirtualBox instead of spending money on other virtualization solutions for the Mac. It's really that simple.

Indeed, this was the part where the attendees took most of their notes, and asked a lot of questions about (ZFS being a close first in terms of discussion/questions).

Conclusion

After our presentations, a lot of users came up and asked questions about how to install OpenSolaris on their hardware and on VirtualBox. Some even asked where to buy professional services for installing them an OpenSolaris ZFS fileserver in their company. The capabilities of ZFS clearly struck some chords inside the Mac OS X community, which is no wonder: If you have lots of Audio/Video/Photo data and care about quality and availability, then there's no way around FS.

I used this event as an excuse to try out keynote, which worked quite well for me, especially because it helped me create some easy to understand animations about the mechanics of ZFS. I also liked the automatic guides a lot which help you position elements on your slides very easily and seem to guess very well what your layout intentions were. I'd love the OpenOffice folks to check out Keynote's guides and see if they can come up with something similar. So, here's a Keynote version of my "OpenSolaris for Mac Users" slides as well as a PDF version (both in German) for you to check out and re-use if you like.

Update: Wolfgang's introductory slides are now available for download as well and Klaus, the organizer of the event, posted a review in the Mac Treff München Blog with some pictures, too.

"OpenSolaris meets Mac OS X in Munich" has been brought to you by Constantin's Blooog.
This entry was created on 2009-06-15 02:32:51.0 PST and is associated with the following tags:
community dtrace mac mucosug munich opensolaris os virtualbox x zfs
You're welcome to use this Permalink , add a comment below or send your feedback to constantin at sun dot com.
Comments [7]

Monday June 08, 2009

DevDusk June 2009 in Munich

Last week, DevDusk June 2009 took place at the Sun office in Munich.

What is DevDusk, you ask?

To me, it's the ultimate geek after-work party: Every once in a while, developers gather after their work day and chat about current cool technologies. Think after work mini-unconference. There are DevDusks in Frankfurt and in Munich, and this time we were lucky to sponsor the latest incarnation out of the Sun Startup Essentials program.

After some food and beers, we had a nice variety of talks:

• Wolfgang Stief talked about one of the coolest hobbies: Collecting and restoring old computers. Not just C-64s and Commodore Amigas, no, the real stuff: Control Data Mainframes, Crays, etc., including a project to build a full tube-based computer. He shared a lot of funny stories involving the many obstacles in transporting, reparing and operating huge digital beasts. Check out the cray-cyber.org website and Wolfgang's collection of photos on Flickr.

• Wolfram Kriesing from uxebu.com introduced us to EventNinja, a clever way to leverage free Cloud services (Google Docs, Yahoo! Pipes) to create fully functional, intelligent and customizable widgets, without the need to operate any server infrastructure by yourself other than a simple static web server. Very cool and a glimpse of a whole generation of clever, light-weight distributed cloud widgets. I'm working on a similar thing myself, more on that in a future blog post.

• And yes, I got to present something too. I used the opportunity to introduce the group to my personal definition of Cloud Computing, the Sun Cloud, highlighting it's REST APIs and encouraging the audience to play around with Zembly while they're waiting for the Sun Cloud to become publicly available.

Slides, links and other material are available from the DevDusk Munich event page, feel free to check them out (some may be in Germany, but what's a little language barrier to tech people anyway?). Also, check out Gabi's blog entry on this event as well as related Twitter comments.

"DevDusk June 2009 in Munich" has been brought to you by Constantin's Blooog.
This entry was created on 2009-06-08 09:31:08.0 PST and is associated with the following tags:
cloud computing developer events presentations suncloud vintage web2.0 widgets
You're welcome to use this Permalink , add a comment below or send your feedback to constantin at sun dot com.