tonmeister86 Posted February 6, 2010 Share Posted February 6, 2010 Here is a new article http://seanolive.blogspot.com/2010/02/evaluating-sound-quality-of-ipod-music.html I posted about issues in designing listening tests on Ipod Music Stations with an illustrative video attached. In parts 2 and 3, I intend to show some subjective and objective results of some recent tests we performed on this category of products. Cheers | Sean Olive | Director Acoustic Research | Harman International | http://seanolive.blogspot.com Link to comment
tonmeister86 Posted April 11, 2010 Author Share Posted April 11, 2010 I finally posted Part 2 http://seanolive.blogspot.com/2010/04/evaluating-sound-quality-of-ipod-music.html of this article which summarizes some competitive benchmarking listening tests conducted on three popular Ipod Music Stations. Cheers | Sean Olive | Director Acoustic Research | Harman International | http://seanolive.blogspot.com Link to comment
wgscott Posted April 22, 2010 Share Posted April 22, 2010 Thanks for posting these links. Interesting read. I know a lot more about science (and so-called scientific method) than I do audio equipment, but as a scientist I can tell you that my attempts to objectively evaluate sound quality, or even to compare two devices, are incredibly difficult and frustrating (compared to what I actually do for a living as a scientist). So, thanks for taking the time to go through this, and for attempting what looks like an almost impossible task. Blind (or double-blind) tests in which only one thing is changed at a time really seems like the only hope for objectivity. I spent quite awhile trying to convince myself that I could tell the difference between the iDecco digital doc vs an analogue input from an iPod (connected to the iDecco), tube on vs. tube off, etc. These were only single-blind tests, but it is hard enough to do in the discomfort of the local stereo dealer store. Link to comment
tonmeister86 Posted May 2, 2010 Author Share Posted May 2, 2010 http://seanolive.blogspot.com/2010/05/evaluating-sound-quality-of-ipod-music.html Part 3: Objective Measurements - of this article has been posted today. A combination of anechoic and in-room measurements is necessary to adequately characterize and predict the Music Station preference and spectral balance ratings in the listening room. Cheers | Sean Olive | Director Acoustic Research | Harman International | http://seanolive.blogspot.com Link to comment
tonmeister86 Posted May 2, 2010 Author Share Posted May 2, 2010 Hi WG, I glad you appreciate the postings. It's nice to meet another scientist in these forums that appreciates the challenges of conducting controlled listening tests. We have a Mac Mini like yours that we use for running tests and listener training in our Reference Listening Room -- in fact it was used in the setup for these Ipod Music Station listening tests. Cheers | Sean Olive | Director Acoustic Research | Harman International | http://seanolive.blogspot.com Link to comment
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