Comment Theoretical Limits..and tomorrow's compression std (Score 1) 153
hmmmm..
there is a point to note about how you mention of "Tomorrow's Compression Standards"..
Compression of a certain piece of data is strictly limited by the entrophy of the data.. That's the actual "amount" of information conveyed by the data stream. Without loosing information you CAN NOT compress further than the limit imposed by the entrophy. All (losless) compression tehcniques are bound on this limit without any exemption.
I note this because I want to point to the fact that "One can not expect a leap in the performance of compression technology".. What can be done, has already been done. Even if there may be slight improvements indeed, they will be really small . Never ever shall we see performance increases such as 2fold or 10fold..
Unless of course, you choose to sacrifice some of the information in the data..which is the case for MP3.
MP3 or similar audio compresion techniques are called "LOSSY COMPRESSION". What they "loose" in order to save bits is the information that human ear does not differentiante. By compressing at 128kb you already hit the limit of differentiability by the human ear.
So, introducing the phrase "Tomorrow's Compression Standards", and leading to dreams of 2 fold or 10 fold increases in compression performance from there is a big mistake. The only thing that has room for dreaming is possibly the increase in available bandwidth. That's a good thing, and surely it will be there.
HSY
huseyin_serkan@hotmail.com
there is a point to note about how you mention of "Tomorrow's Compression Standards"..
Compression of a certain piece of data is strictly limited by the entrophy of the data.. That's the actual "amount" of information conveyed by the data stream. Without loosing information you CAN NOT compress further than the limit imposed by the entrophy. All (losless) compression tehcniques are bound on this limit without any exemption.
I note this because I want to point to the fact that "One can not expect a leap in the performance of compression technology".. What can be done, has already been done. Even if there may be slight improvements indeed, they will be really small . Never ever shall we see performance increases such as 2fold or 10fold..
Unless of course, you choose to sacrifice some of the information in the data..which is the case for MP3.
MP3 or similar audio compresion techniques are called "LOSSY COMPRESSION". What they "loose" in order to save bits is the information that human ear does not differentiante. By compressing at 128kb you already hit the limit of differentiability by the human ear.
So, introducing the phrase "Tomorrow's Compression Standards", and leading to dreams of 2 fold or 10 fold increases in compression performance from there is a big mistake. The only thing that has room for dreaming is possibly the increase in available bandwidth. That's a good thing, and surely it will be there.
HSY
huseyin_serkan@hotmail.com
