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Computer Audio Asylum Music servers and other computer based digital audio technologies. |
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In Reply to: RE: Disagree with the FLAC Recs......... posted by E-Stat on September 21, 2014 at 09:31:24:
I decoded two versions of an entire album, MP3 to WAV and FLAC to WAV. In both cases, the input had been cached by the file system in RAM and the output went to a RAM disk. I measured the total elapsed time taken by the conversions. It took about 60% longer to decode the MP3 than it did to decode the FLAC. The software involved was dBpoweramp running on an Intel core i5 (2nd gen) CPU. The FLAC had been encoded using FLAC level 8 by dBpoweramp. The MP3 had been encoded using LAME, high quality setting 192 VBR, also by dBpoweramp. (FLAC level 8 uses the longest LPC predictor and hence is the most CPU intensive in decode.)
It's certainly possible that a poorly implemented player doing real time conversion could botch things up and spend more time in operating system calls, buffer juggling and unneeded data copies than the actual decoding required for the format. Hence, YMMV.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
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Follow Ups
- RE: Disagree with the FLAC Recs......... - Tony Lauck 09/21/1417:53:40 09/21/14 (1)
- RE: Disagree with the FLAC Recs......... - E-Stat 11:51:50 09/22/14 (0)
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