Rockbox General > Rockbox General Discussion
best song format
ursamajor:
Concerning lossy formats...
For me, Musepack (Insane) sounds better than MP3 encoded even at 320 kbps.
Fernando Negro:
From what I read, some months ago, the difference between a 320kbps MP3 file (only this type, and not the other lower bitrates) and a FLAC file is imperceptible. So, although the FLAC format doesn't eliminate any sounds, the ones that are eliminated by the 320kbps MP3 files are indeed inaudible - and, therefore, it makes no practical difference, on the listening aspect, if you're hearing such (high bitrate) MP3 files or FLAC ones. I read that this is even true for the most hi-fi equipments. And, that's when I understood how come a world-class producer of classical music, such as Deutsche Grammophon, would sell the best and most detail-rich music there is in MP3 format. (Which would be a "crime" for such good music, if that was reducing its quality.) You can easily search for information about this on the Internet. (Theoretically, FLAC files should sound better than MP3 files. But, in practical terms, it looks like the MP3 compression algorithm really works well, and eliminates only the sounds that are inaudible.)
But, this being said... I don't know anything yet about the hardware capabilities of the different players that can run Rockbox in it. So, perhaps - as it is said above - it makes the difference which lossy or lossless format you use, depending on the player...
Fernando Negro:
And, speaking of hardware capabilities...
Can anyone here tell me where can I find detailed (or listed) information, concerning the "bits" and "Hz" playing capabilities of the different Rockbox-supported devices?
Is this limited capability, of playing up to some values - in this small portable players - noticeably different, in terms of results, from playing the same files on a regular computer?
saratoga:
--- Quote from: Fernando Negro on January 25, 2015, 06:23:23 PM ---Can anyone here tell me where can I find detailed (or listed) information, concerning the "bits" and "Hz" playing capabilities of the different Rockbox-supported devices?
--- End quote ---
You can find a list of sampling rates supported by the rockbox device drivers in the config files, under HW_SAMPR_CAPS:
http://git.rockbox.org/?p=rockbox.git;a=tree;f=firmware/export/config;h=e3abed727ab38aaf520c9ea7a148fc4416046260;hb=HEAD
Some devices may support other sampling rates that aren't implemented though. Usually most of these devices can be programmed to do almost any sampling rate less than a few hundred kilohertz if one is really willing to screw around with the PLL settings though.
I don't think we have any devices that can actually output more than 16 effective bits, except maybe the DX50.
404_user_not_found:
Fernando Negro
For me there are no reason to use lossy formats anyway with hard drive and sd card with huge capacity. And with lossless you can use any lossy format of your choice without lossy>lossy transcode.
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