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1

Sunday, October 31st 2010, 8:56am

Very high CPU usage while playing Flac files

Hi,

when I playback Flac encoded files with Winamp, I get very high CPU usage. This happens with every OS (XP32, Vista64, Win7_64) and every CPro Skin. For example I get > 80% CPU usage on my Mediacenter (E6600 Dualcore CPU). Using visulisations additional to any CPro skin while playing any Flac file even is nearly impossible, because CPU usage will be at 100%. If I switch back to any "normal" skin, the CPU usage drop down to 10% with Flac playback...
There is NO problem with any mp3 file.
Any suggestions?

THX
rulaman

Posts: 371

Name: Julian W.

Location: Sunshine Coast, Australia

Occupation: University Student

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2

Monday, November 1st 2010, 6:16am

Same thing happens to my machine.
Have you got a dualcore or a single core? (or with an i7, 16 cores lol)
my system is XP SP2 centrino duo.

Uses 60% cpu. with songs from itunes.
IDK what the issue is. is it physically using the CPU or winamp just feeding it incorrect data?

EDIT: Sorry, had a game running too XD
FLAC uses 8% cpu on my system with cpro. :D
--- Jay Spannerz ---
View my DA page here

3

Monday, November 1st 2010, 7:02am

lol, no game running in background here... :P

E6600 DualCore machine, Winamp+CPro+Flac:
CPU usage > 80% :thumbdown:

E6600 DualCore machine, Winamp+Flac (not using CPro):
CPU usage < 10% :thumbup:

Q9650 QuadCore machine, Winamp+CPro+Flac:
CPU usage > 30% :thumbdown:

Q9650 QuadCore machine, Winamp+Flac (not using CPro):
CPU usage < 5% :thumbup:

pjn123

"Your future depends on your dreams. So go to sleep"

Posts: 2,966

Name: Pieter

Location: /\/¯¯¯¯¯\/\, South-Africa

Occupation: Auditor

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4

Monday, November 1st 2010, 11:35am

What Winamp version do you have?

This is definitively not normal :)
"I either want less corruption, or more chance to participate in it"

5

Monday, November 1st 2010, 12:02pm

What Winamp version do you have?

This is definitively not normal :)

5.581, but I had this issue also in all previous versions... ;(
Same in XP 32 Bit, Vista 32 Bit, Vista 64 Bit, Win 7 64 Bit..., on 4 totally different machines...

6

Monday, November 1st 2010, 12:28pm

Well..., that's an interesting thing:
It seems to depend on the kind of music, how much the CPU will be used by Winamp+Cpro Flac playback...
Currently I only have the Fever Ray - Fever Ray album ripped with the Winamp Flac encoder in my media library. I have tested an other album (any Queen album) with the Flac encoder, and the CPU usage is much better here. Then I ripped again Fever Ray, and got high usage again... ?( 8|

pjn123

"Your future depends on your dreams. So go to sleep"

Posts: 2,966

Name: Pieter

Location: /\/¯¯¯¯¯\/\, South-Africa

Occupation: Auditor

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7

Monday, November 1st 2010, 9:15pm

Dont have flac here but will test with ripped one and check whats up... Thx for the report

Do the album have album art? And if YES, is it high res? I remember a bug in Winamp with it and since cpro have a few cover objects it loads on all of them even if not shown.. but this should just be in the start of the track..
"I either want less corruption, or more chance to participate in it"

8

Tuesday, November 2nd 2010, 6:31am

No, there is no album art. And I even did remixes of 2 tracks (from wav) and ripped them again with Winamp Flac. Playback of them produces high CPU load too... :huh:

Posts: 371

Name: Julian W.

Location: Sunshine Coast, Australia

Occupation: University Student

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9

Monday, November 8th 2010, 7:49am

Hmm, this certainly is odd.

Have you scanned for viruses?
What CPU do you have?
--- Jay Spannerz ---
View my DA page here

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