Linked by Eugenia Loli on Tue 15th Aug 2006 23:21 UTC
Multimedia, AV RealNetworks will release open-source software this year that will let Linux computers play Windows Media files legally. The media delivery software company and Novell made the announcement at the LinuxWorld Conference and Expo. Novell said it will include the tool in its Suse Linux Enterprise Desktop 10 in the fourth quarter.
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Tron
Member since:
2005-07-07

Just because something doesn't appear on Wikipedia doesn't mean it isn't true. I suggest you look at this:

http://www2.imm.dtu.dk/courses/02206/java/power.html

Every gate that changes from 0 to 1 or 1 to 0 in CMOS logic (used in most digital circuits) leaks a small amount of voltage across the power leads. NOPs minimize these changes and therefor take less power than more complex instructions.

Edit: Meant to reply to RE[8]: No different than MP3 vs OGG.

Edited 2006-08-17 00:09

Reply Parent Score: 1

hal2k1 Member since:
2005-11-11

//Just because something doesn't appear on Wikipedia doesn't mean it isn't true. I suggest you look at this:

http://www2.imm.dtu.dk/courses/02206/java/power.html

Every gate that changes from 0 to 1 or 1 to 0 in CMOS logic (used in most digital circuits) leaks a small amount of voltage across the power leads. NOPs minimize these changes and therefor take less power than more complex instructions. //

Nothing at all there to indicate that playing an Ogg Vorbis file requires more power on exactly the same architecture as playing an MP3 would take.

Nada. Zilch, Zero. Squat. Diddly.

Gates will transition "from 0 to 1 or 1 to 0 in CMOS logic" regardless of the instructions followed. Memory will be fetched, ALU gates will be exercised ... etc, etc, etc ... regardless of what instructions are followed.

You will only see a difference if entire new areas of the chip are "invoked" ... such as a math co-processor. You would be going some to find a math co-processor in a portable medi player device.

lets go further - how much power to run the CPU versus the memory or the LCD display - or more importantly, driving the earphones?

I think you find that the vast majority of battery power would be consumed driving the earphones. This of course is no different for an Ogg Vorbis file or for an MP3 file.

Any other differences in playing each file type on a portable player (constrained as they are to the microcontroller interior) would pale into insignificance compared to the drain taken by driving the earphones.

This argument is getting very silly indeed. Face it people, there is no difference in battery power used when playing an Ogg Vorbis file in a portable player compared to playing an MP3 file in the same device at the same volume.

Nada. Zilch, Zero. Squat. Diddly.

Edited 2006-08-17 00:59

Reply Parent Score: 1

hal2k1 Member since:
2005-11-11

//Gates will transition "from 0 to 1 or 1 to 0 in CMOS logic" regardless of the instructions followed. Memory will be fetched, ALU gates will be exercised ... etc, etc, etc ... regardless of what instructions are followed. You will only see a difference if entire new areas of the chip are "invoked" ... such as a math co-processor. You would be going some to find a math co-processor in a portable medi player device. lets go further - how much power to run the CPU versus the memory or the LCD display - or more importantly, driving the earphones? I think you find that the vast majority of battery power would be consumed driving the earphones. This of course is no different for an Ogg Vorbis file or for an MP3 file. Any other differences in playing each file type on a portable player (constrained as they are to the microcontroller interior) would pale into insignificance compared to the drain taken by driving the earphones. This argument is getting very silly indeed. Face it people, there is no difference in battery power used when playing an Ogg Vorbis file in a portable player compared to playing an MP3 file in the same device at the same volume. Nada. Zilch, Zero. Squat. Diddly. //

I have been looking back over this thread, and I note with considerable surprise that several of my posts on this topic - debunking the old wives tale myth about Ogg Vorbis requiring more battery power - have been modded down.

What for exactly? For being right?

Reply Parent Score: 1