daveross
Retained
-
Member Title
Newbie
-
More info - I found that the sample rate shift doesn't occur in iTunes, but always in Foobar, JRiver, and Media Player. Actually, in Media Player, the sample rate change also occurs when I stop playblack (click the stop button). Does this suggest anything? And...the results are the same whether I use ASIO or whether I avoid ASIO and just un-map the Proton from KMIXER in Audio Device properties. By the way, thank you all for trying to help with this.
-
Gordon, I just checked out the Proton on the IBM (which is running XP Pro SP2). I get the same results with uncompressed .wav and .flac files: the sample rate indicator jumps to 96k at the beginning of a 44.1 file and then returns to 44.1k. The audio transient seems to be associated with the jump to 96k.
-
Lars, thanks for the ASIO2K suggestion. Unfortunately, it still supports only 16 bit audio. Just to try it, I installed it anyway and found that it doesn't show up in Foobar. And even if I simply assign ASIO2K to the Proton and select no ASIO driver in Foobar, the result is still the same. Perhaps more importantly, I just noticed something I didn't notice before: When playing a 44.1/16 file, the Proton's sample rate indicator jumps to 96 and then returns to 44.1 (even when the previous file was also a 44.1/16 file). The indicator jump lines up with the transient I hear at the beginning of each file.
-
Gordon, thank you for posting this. Let me clarify one aspect of the post: the (sometimes loud) transient click occurs at the beginning of every file, regardless of the sampling or bit rate (if I stop (but not pause) a file that's playing, I hear the transient when I press play again). The noise is not at all associated with a change in sample rates between consecutive files.