DTS-encoded music plays perfectly over Airtunes; not on Optical Digital Out
For more than a year, I have enjoyed playing DTS-encoded music via iTunes/ Airtunes to my home theatre system. The sources of this music are from DTS-encoded CD (or music discs) and Swedish National Radio (many great DTS files to download.) I like to use iTunes to manage my music, and once ripped, my CDs go into safe storage.
I have wanted to expand my collection of DTS music, and bought an Audio DVD. I quickly learned that I cannot rip those track into iTunes, nor have I been successful in passing the data via Airtunes to my sound system (using non-Apple commercial product). I began experimenting with the optical digital out and in to see if I could "capture" a pure stream to save as an AIFF in iTunes. (i.e. play the DVD in DVD Player, then, having pathed the optical out and in ports, attempt to capture the data from the in port). Not having any success, I thought I might prove the optical port, so I moved my tower to the room where the sound system is installed and connected the optical port (quite simply, I disconnected one end of my optical cable from the Airport Express, and plugged it into the optical out port on the Mac.
I fired up DVD Player, adjusted the setup, and played the audio DVD. It worked perfectly with full surround being delivered (and attested to by the receiver having switched into DTS mode when it detected and recognized the data stream). This was good. I was satisfied that the Optical Digital output from the DVD was pure.
As I had never previously optically connected this Mac to my sound system, I decided to hear iTunes output through this link. I set the system preference Sound Output to Optical digital-out port, and fired up iTunes. Standard stereo recordings played properly, but when I selected one of my DTS files, the sound system only produced white-like noise. I tried one of my DTS-encoded CDs, and the results were the same.
I then pulled the optical cable from the back of the Mac and re-inserted it into the Airport Express, then told iTunes to use the remote speakers, and the DTS tunes played perfectly. Nothing else had been changed.
I rechecked all the settings (volume control, equalizer off, no adjustments in the file Options, Crossfade, Enhancer, Sound Check). They were all as they need to be for this to work. Yet it didn't. I reconfirmed the setting using the Apple bulletin. That bulletin implies that if the music works through one path, it will work through the other, but it didn't in my case. It would appear that iTunes output to the optical digital-out port may undergo some alteration while the data is pure over Airtunes.
I'm seeking advice to have this resolved.
Thanks.
PowerMac G5 Dual 2.3; Powerbook G3 Firewire Mac OS X (10.4.4)
I have wanted to expand my collection of DTS music, and bought an Audio DVD. I quickly learned that I cannot rip those track into iTunes, nor have I been successful in passing the data via Airtunes to my sound system (using non-Apple commercial product). I began experimenting with the optical digital out and in to see if I could "capture" a pure stream to save as an AIFF in iTunes. (i.e. play the DVD in DVD Player, then, having pathed the optical out and in ports, attempt to capture the data from the in port). Not having any success, I thought I might prove the optical port, so I moved my tower to the room where the sound system is installed and connected the optical port (quite simply, I disconnected one end of my optical cable from the Airport Express, and plugged it into the optical out port on the Mac.
I fired up DVD Player, adjusted the setup, and played the audio DVD. It worked perfectly with full surround being delivered (and attested to by the receiver having switched into DTS mode when it detected and recognized the data stream). This was good. I was satisfied that the Optical Digital output from the DVD was pure.
As I had never previously optically connected this Mac to my sound system, I decided to hear iTunes output through this link. I set the system preference Sound Output to Optical digital-out port, and fired up iTunes. Standard stereo recordings played properly, but when I selected one of my DTS files, the sound system only produced white-like noise. I tried one of my DTS-encoded CDs, and the results were the same.
I then pulled the optical cable from the back of the Mac and re-inserted it into the Airport Express, then told iTunes to use the remote speakers, and the DTS tunes played perfectly. Nothing else had been changed.
I rechecked all the settings (volume control, equalizer off, no adjustments in the file Options, Crossfade, Enhancer, Sound Check). They were all as they need to be for this to work. Yet it didn't. I reconfirmed the setting using the Apple bulletin. That bulletin implies that if the music works through one path, it will work through the other, but it didn't in my case. It would appear that iTunes output to the optical digital-out port may undergo some alteration while the data is pure over Airtunes.
I'm seeking advice to have this resolved.
Thanks.
PowerMac G5 Dual 2.3; Powerbook G3 Firewire Mac OS X (10.4.4)