Subsequently and Furthermore is a small company that develops User-Facing Software for iPhone and Mac OS X. S&F also provides writing and speaking expertise on these topics.

Who Is S&F?

Chris Adamson, President and "Director of Code and Media", has been developing software professionally since 1997, focusing on client-side GUI development and media-distribution technologies. He is the co-author of iOS SDK Development (with Bill Dudney) and Learning Core Audio (with Kevin Avila), along with the catalog titles Swing Hacks (with Josh Marinacci) and QuickTime for Java: A Developer's Notebook.

What I Do

I advise and develop solutions, with a particular focus on media technologies for Mac OS X (Core Audio, QuickTime, QTKit, AV Foundation, etc.), and iOS (AV Foundation, Media Player, Core Audio, Open AL, etc.). Thanks to a wide variety of client engagements, I'm broadly experienced in most of the iOS APIs.

Previous client projects include:

• Digital "course-pack" article reader for higher education, supporting highlighting (and import/export of highlight files) in EPUB/xhtml and PDF
• Web radio client with real-time iPod EQ effects applied, regardless of source format (MP3, AAC, Ogg, WMA, etc.)
• Social "challenge" game with push notification
• Effects / audio "sweetening" chain for OS X CD burning application
• OS X daemons and agents for user-monitoring application, along with custom installer
• Maintenance / new features in iPhone app tied to cable/satellite broadcaster's live coverage of major 2011 sporting event
• Development of an on-screen preview component for QuickTime for Java video capture, blitting pixel data from QuickDraw to Java2D, and accounting for live device and configuration changes
• Capture-and-go application (Mac, Windows) for recording and editing personal video messages

I frequently speak at developer conferences, including CocoaConf, Voices That Matter, and MobiDevDay.Previously, I was the Editor (for O'Reilly Media) of the industry-leading developer community java.net and of ONJava.com. Prior to switching to the computer industry in 1997, I was a Writer / Associate Producer at CNN Headline News.

See also:

• [Time code];, my digital media development blog
• Chris' resume
• Lanyrd speaker/author page

I also have the expertise to write about and train developers in cross-platform media development, with real world experience of what works and what doesn't. I also produce podcasts and video livestreams, which gives me an affinity to clients' professional media needs.

Contacting Me