Spectral analysis, which is central in bioacoustics research, offers some metrics to evaluate the complexity of the sonic environment: acoustic entropy index, median of amplitude envelope, acoustic richness, acoustic dissimilarity index, acoustic complexity index. These metrics capture the emerging patterns of a sonic environment and allow characterizing the soundscape in delimited areas of interest.
Sony Computer Entertainment Europe announced the PlayStation 3 Slim, a smaller and lighter model of the console and a release date of 1 September 2009. Firmware 3.0 for the PlayStation 3 was also announced, adding new features to the PlayStation Network. Sony announced that the European Video Store would launch in November 2009. Sony also announced that the PlayStation Portable would get smaller games (under 100mb) in the form of 'minis' and that comics would also be available to download in December 2009. A "free game" registration promotion was announced for the PSP Go.
Microsoft Game Studios announced Fable III, along with a release date of 2010. Also, Microsoft announced their intention to release Fable II on the Xbox Live Marketplace in five episodes, the first of which will be free to download.
While most press conferences were not available for live streaming, Electronic Arts was streaming its press conference on EA.com. Sony Computer Entertainment Europe also showcased its press conference on its online community-based service PlayStation Home shortly afterwards. Sony also made its press conference available for download on the PlayStation Store. Various gaming websites offered live-blogging of the respective press conferences. 2b1af7f3a8