Support and General Use > Audio Playback, Database and Playlists
Distortion Problem on Sansa
X86:
hmmmm...very weird,I test the audio files on pc and then in the dap to check distortions and/or glitches on them,and I've never noticed distortion,the distortion may become when you change between audio formats and bitrates,sometimes you need to do the process to convert to other audio format three times,but that occurs in the worst cases I have had,and as caution I test the audio files in the pc and then in the dap,to check audio file glitchesand/or distortions.
Vortex:
--- Quote ---Can you provide a sample clip, maybe 3 or 4 seconds that very clearly shows this problem?
--- End quote ---
I have uploaded a sample clip at Mediafire.
Even though this is just a small snipplet and not the entire song I thought that it might still be best to put up a warning: This song might cause serious mental injury! ;)
Why did I still choose it? Well, you asked for a clip that very clearly shows the issue. Searching through the collection on my Sansa I couldn't find a better song to demonstrate this.
Anyway here it is:http://www.mediafire.com/?3mlvzw7mwhx
It's a zip archive that contains a snipplet of the original file, as well as a recording from the Sansa. I encoded both to FLAC to save space (that shouldn't be a problem since FLAC is lossless, I thought).
The recording was made using the Line-In of my Computer's soundcard (Creative Audigy2 Value).
I hope this helps...
Llorean:
I actually meant a clip of the original file, so that I could test it on my Sansa, on other Rockbox players, and on my computer, to see if it was a decoder issue, or a hardware issue, or something strange that just happens to some people and not the rest of us.
cpchan:
--- Quote from: Vortex on June 04, 2007, 03:10:45 PM ---I would rather use Ogg/Vorbis than AAC (if you can).
That's because
a) Vorbis is OpenSource
--- End quote ---
You don't have to convince me. I have been using Vorbis since the beginning. ;D I am also on the Vorbis mailinglist and talk to Monty once in a while. I was just curious about the quality of RA's AAC encoder.
--- Quote ---b) it achieves better quality at low bitrates than AAC.
--- End quote ---
Only if you use the AoTuV branch. A lot of the low bitrate tuning have not been folded in Xiph's official branch since Monty has been rather busy. Also, accorded to the low bitrate ABX tests on HA, it is a toss up between AoTuV Vorbis and HE-AAC.
Charles
Vortex:
--- Quote ---I actually meant a clip of the original file, so that I could test it on my Sansa, on other Rockbox players, and on my computer, to see if it was a decoder issue, or a hardware issue, or something strange that just happens to some people and not the rest of us.
--- End quote ---
A small clip of the original file is included in the zip archive I posted. It was re-encoded to FLAC though, but since FLAC is lossless there shouldn't be any difference to the source Vorbis file.
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