hugocmatos Posted January 6, 2011 Share Posted January 6, 2011 First of all I would like to thank you for all the knowledge in this forum!! I've started to copy all my cds into an iMac using iTunes. I've used the AIFF format with check errors options with the iMac cdplayer. So far so good. Then I use iTunes and Airplay to stream the AIFF files over ethernet cat6 cables (router:timecapsule) to AppleTV2. So far so good too! Apple TV is connected to digital stereo amp, in the case a Lyngdorf, through optic cable. The music plays no falls, everything ok, except for the annoying fact that in some musics I hear some fine noise, just like a plastic bag folding, but very very low... but it's there... When I play the cd in a dedicated cdplayer connected to the amp, the same music is very silent, no noise... I've disconnected the HDMI cable of the apple TV, just in case, but same thing.. What could it be? The amp and speakers no.. Could it be the converting with the cdplayer of the imac? Is it the apple TV? Dunno... can anyone help! BTW... this is over the topic software but dunno... Link to comment
James1776 Posted January 7, 2011 Share Posted January 7, 2011 Sounds like jitter...digital interconnects too long maybe? Is the optical cable glass or plastic? I have found you an argument; I am not obliged to find you any understanding – Samuel Johnson Link to comment
hugocmatos Posted January 7, 2011 Author Share Posted January 7, 2011 It's a Van den Hul optic cable with 1metre... not too long... Does AppleTV produces jitter? I've noticed when streaming that it sends at same time for optic and hdmi...dunno Link to comment
James1776 Posted January 7, 2011 Share Posted January 7, 2011 That is decent cable and is short so I doubt that is the problem...still sound like jitter (or perhaps simply dirty contacts - Have you tried cleaning the contacts?) Another possibility could be REALLY dirty power but that is a long shot I have found you an argument; I am not obliged to find you any understanding – Samuel Johnson Link to comment
hugocmatos Posted January 7, 2011 Author Share Posted January 7, 2011 I made more tests....with the same cd and music.. Cleaned the cable tips... same thing Ripped with xld on a macbook to aiff.... same... tried apple lossless... same... then I thought if it was jitter it should also appear while streaming the cd from the macs.. guess what .. no noise... I think it is the ripping part.. but tried itunes aiff, apple lossless and xld in different drives... or the reading from the hard drives.. but how? Link to comment
hugocmatos Posted January 7, 2011 Author Share Posted January 7, 2011 well.. the problem seems to be not every time present, but in xld files it is less times present, i need to restart the music and it seems to clear those sounds... why?? btw..the best ripping for xld is cdparanoia or xld secure? Link to comment
James1776 Posted January 7, 2011 Share Posted January 7, 2011 Have you tried ripping to a wav file? I have found you an argument; I am not obliged to find you any understanding – Samuel Johnson Link to comment
sjsanford Posted January 7, 2011 Share Posted January 7, 2011 [deleted - I just realized you already tried this] iPad2 + RemoteApp/VNC Viewer --> Headless Mac Mini --> iTunes * ALAC --> cheap USB cable WireWorld Ultraviolet USB cable --> Musical Fidelity V-LINK --> SonicWave Toslink --> Musical Fidelity V-DAC --> $.97 (RadioShack clearance) Monster THX Digital Coax --> AIWA NSX-3300 --> Polk RTi4\'s --> Cheapskate Listening Enjoyment[br] Link to comment
hugocmatos Posted January 7, 2011 Author Share Posted January 7, 2011 it is strange because it's not in the same time of the musics and mostly at the beginning and if i restart no longer there... but it's more noticeable while ripping through itunes, but in xld does the same, wherever i use xld secure or not... the factor in common in all is I use itunes to stream, but with cd i used too and no noise... it's the same as well using wireless or wired... Link to comment
James1776 Posted January 7, 2011 Share Posted January 7, 2011 RFI maybe? I have found you an argument; I am not obliged to find you any understanding – Samuel Johnson Link to comment
hugocmatos Posted January 7, 2011 Author Share Posted January 7, 2011 I've been doing some research and the new apple TV upscales the 44.1k of my aiff to 48k.... maybe in the way noise appears during that.... got to try with airport express to see if there's a difference... Link to comment
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