Originally Posted by james444
Thanks, that mirrors exactly what I hear.
Thanks anyway for your time and thoughts. I agree it's not among the cleanest classical recordings and the recording level is very low, so there's some minor noise present even in the WAV files. But the artifacts I'm talking about are much more severe and only occur with the mp3 version on the X3.
Yes, I did volume match my SGS3 (international version) and it sounded significantly cleaner with the same mp3 file.
Slightly off-topic, your post made me remember that I heard similar sound artifacts with low level recordings on my SGS3 when I tried PlayerPro with the DSPPack installed, so I tried this out again. And sure enough, the moment I activate the DSPPack in PlayerPro (v2.72) settings, there are very similar artifacts to the X3 with this mp3 file on my SGS3. My wild guess is that maybe similar software libraries and / or decoding algorithms for mp3 are being used on both the X3 and PlayerPro with DSPPack.
Just for clarification, what I did was converting the test mp3 file to flac, not the other way round. So any noise present in the mp3 file should still be present in the flac, no? Yet the flac plays much cleaner than the mp3 on my X3, that's why I think it may be a decoder issue. If you play just the first 5 seconds at volume 40/60 with your UERM, the artifacts with the mp3 version should be easily apparent.
Btw, here's a link to the transcoded flac version: file
Thanks, looking forward to your findings!
Maybe the fact that this test file exhibits similar artifacts in PlayerPro on Android with activated DSPPack (see above) can be helpful to isolate the cause.
Thanks for trying. See my above reply to rawrster, can't possibly be an encoding issue when the same file transcoded to flac or wav plays cleaner on the X3.