android
Prev Previous Post   Next Post Next
  #11  
Old 06-16-2012, 02:53 PM
saratoga saratoga is offline
Rockbox Developer / Moderator
 
Join Date: Apr 2007
Posts: 3,734
Default

Quote:
Originally Posted by beslayed View Post
This is a question about file encoding and effect on battery life, so I don't know if I should post here or elsewhere.

In any case, I've been experimenting with using speex format (with audiobooks) to save space. However, I feel that playing the speex files may be draining the battery more quickly than playing the mp3 files I converted them from. Is this possible/likely?

I have been creating fairly high quality speex files - could this be having a negative effect on battery use? (i.e. would it be better to create more highly compressed speex files instead?) Specifically, I've been converting the mp3s to "wideband" 32k wav files, and then converting those wav files to speex using "speexenc" with the following settings: "--quality 10 --comp 10 --nframes 10".
I never tested speex on ARM, but you can benchmark them using the test_codec plugin and compare to the numbers for MP3:

http://www.rockbox.org/wiki/CodecPerformanceComparison
__________________
Interested in Google's Summer of Code ? PM me.
Reply With Quote

 

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT -5. The time now is 06:18 AM.