Technical Issues


	Minimum 800x600 pixels screen resolution Small characters on screen display Minimum 56.6Kbps Modem recommended Microsoft Internet Explorer 5 or Firefox browsers Media Player: zoom set at 100% and check "Repeat forever" in Options\Playback Download Windows Media Player Video clips in this web site have been compressed with the VP31 codec from On2 Technologies ™. Download the VP3.2 video codec (to view the video clips of this site).
	Notice: To view the implemented video clips: 1. Download and install the free VP3 codec v. 3.2.6.1 (On2 Technologies™) here: http://svn.xiph.org/releases/vp3/3.2.6.1/ or, download directly here the installer for the codec (recommended): - Windows installer: VP3_VFW_Win.exe - Quicktime installer: VP3_QT_Win.exe (Prevous visualization problems with Nvidia and Ati Radeon video cards have been fixed). 2. Click on still frames to view video clips as indicated (when available). Suggestion: Begin by browsing the Monthly Image pages.

	Risoluzione minima del monitor: 800x600 pixels Selezionare "caratteri piccoli" sul display del monitor Si raccomanda modem con banda minima di 56.6Kbps Browser Microsoft Internet Explorer 5 Media Player: settare lo zoom set al 100% and selezionare "Repeat forever" nelle opzioni di playback Scarica Windows Media Player I video clips di questo sito web sono stati compressi utilizzando il codec VP31 della ™, Scarica il codec video VP3.2 (per visualizzare i clip video di questo sito)
	Avviso: Per vedere i clip video implementati: 1. Scaricare ed installare (gratis) il codec VP3 v. 3.2.6.1 (On2 Technologies™) quì: http://svn.xiph.org/releases/vp3/3.2.6.1/ oppure, scaricare direttamente quì l'installatore per il codec (raccomandato). - Windows installer: VP3_VFW_Win.exe - Quicktime installer: VP3_QT_Win.exe (Risolti i problemi di visualizzazione con schede video Nvidia ed Ati Radeon). 2. Cliccare sulle immagini fisse per vedere i video clip come indicato (quando disponibili). Suggerimento: Cominciare visitando le pagine delle Immagini del Mese.

Website pages	Created using Microsoft FrontPage2000 ™

Image acquisitions (hardware)	Digital analog to digital acquisition from standard s-VHS output of echocardographic equipment using different acquisition cards (in chronological order): 1. Fast AVMaster ™ (16:1 compression through Fast Mjpeg proprietary codec) 2. Matrox ™ (14:1 compression through Matrox proprietary codec) 3. Dazzle Holliwood DV Bridge ™ (approx 4-6:1 compression through Dazzle DV codec).

Image acquisitions during clinical activity (software)	Echocardio software in Windows2000 Professional™ system.

Video clip storage software	Digital re-compression, cropping and editing of acquired clips using: 1. Adobe Premiere ™ 2. VirtualDub Software (freeware)

Storage media	CD, hard disk

Storage compression codecs	Radius Cinepak codec v. 1.10.0.6 (included in Windows™ OS) and presently DivX 4.11 Mpeg4 (available free for personal use online at DivX Networks™: http://www.divx.com/), and Microsoft MPEG-4 Video Codec V2.

Image Frames	1. Originally acquired as bitmaps from s-VHS echo output. 2. Acquired from the stored video clips using VirtualDub Software (freeware).

Frames on the web	Editing, cropping and re-compression in jpeg format using Adobe Photosop v3™. Final format: approx 300x400 pixels in 20-30 Kb files.

Clips on the web	Editing, cropping and re-compression in avi format, Mpeg4 compression using VirtualDub Software (freeware) and On2 Technologies™ VP3.2 codec (free download here)