I recently got the European version of Bing Crosby’s White Christmas CD from a local store here in Sweden, cat. no. MCD 18226. I discovered that this version is different from the US one; the European version seems to be based on a 1963 LP release of Merry Christmas, which is in “simulated stereo” and which has added reverb, while the US version is based on the 1955 release, which is in mono with no reverb.
Wednesday, December 24, 2014
Monday, May 5, 2014
I find it very interesting that although Microsoft states in their Multimedia Programming Interface and Data Specifications 1.0 that escape sequences like
\370, etc. can be used in string chunks in a RIFF (Resource Interchange File Format) file like WAV and AVI, most programs, including Microsoft’s own Windows Media Player, will let these escape sequences pass through unprocessed.
Thursday, April 24, 2014
Saturday, April 12, 2014
Tuesday, March 25, 2014
Thursday, March 13, 2014
Wednesday, March 12, 2014
Tuesday, March 11, 2014
Saturday, March 8, 2014
Monday, February 24, 2014
I have converted all my PNG format pictures (back) to TIFF. I have been using this format in the past, before I put the pictures online. Since the TIFF support in web browsers is close to non‐existent, I decided to use PNG until I found a better solution. Nowadays computers are much faster than they were in the past, and it is finally feasible to convert TIFF to PNG on the fly for web display, albeit with some delay when processing very large images.
Thanks goes to Bob Friesenhahn for his valuable input regarding TIFF technicalities, and his role as the driving force behind the excellent GraphicsMagick software package, which I find much more stable and bug‐free than ImageMagick, which should perhaps be renamed as “ImageTragick”? Just kidding.
Sunday, February 16, 2014
Sunday, January 26, 2014
On page 14 in the Exif 2.3 specification, under 4.4.3, “Pixel Composition and Sampling”, the following is stated:
“When compressed data is used, the combination shall be Y:Cb:Cr = 4:2:2 or Y:Cb:Cr = 4:2:0.”
Why the heck isn’t a combination of 4:4:4 (i.e. no sub‐sampling) allowed? This will produce the highest quality JPEG compressed images, and many times there is a noticeable difference between using 4:4:4 and using 4:2:2 or 4:2:0. Incomprehensible.