Jim Tavegia Posted September 20, 2000 Share Posted September 20, 2000 I had been streaming optical out from my DAT into my DIO 24/48. Everything was fine. I came back an hour later and when I turned on my dat some steady-state almost full spectrum tone pegged the right channel Cool Edit meter. It wiped out all analog audio from the card. I uninstalled and reinstalled the DIO24/48 and the analog audio came back. I tried the optical out and it did it again. I tried a new optical cable and the same thing. Suggestions? ------------------ Jim T. Jim T. Link to comment Share on other sites More sharing options...
Anderton Posted September 20, 2000 Share Posted September 20, 2000 My guess is that either a sample rate got switched on one unit but not the other (a default, perhaps?) or, perhaps more likely, there is a clock sync problem where the two units aren't sure which is the master and which is the slave. This can happen very easily if you're dubbing back and forth between something (e.g., sound card) and a DAT. When you're going into the DAT, you want the DAT to recognize the clock coming in. Most DATs will oblige and auto-switch. In my experience, though, cards are less forgiving and you need to go into some utility program, included with the card, that determines whether the card follows its own internal clock or an external clock. Check this out and report back on what you find... Craig Anderton Educational site: http://www.craiganderton.org Music: http://www.youtube.com/thecraiganderton Twitter: http://www.twitter.com/craig_anderton Link to comment Share on other sites More sharing options...
Jim Tavegia Posted September 20, 2000 Author Share Posted September 20, 2000 Hi Craig, I had thought after all of my problems with the Delta 66 card I had found some solution to getting digital audio into my HP. With this card I had a noise floor of -76db which I'll take any day. This morning before I headed to the repair shop I tried streaming optical from the DIO 24/96 into my DAT. It has a front panel switch you set for analog, optical or coaxial. The DAT and the card have seperate optical I/O's as does my Sony DAT. When taken out of pause, the the DAT tape motor started and stoped repeatedly every 2 second. The sample is at 44.1 on Cool Edit and the display said 44.1 on the DAT. The card has two settings that you can check that say, allow for 24 bit in, and allow the 48khz sample rate. I hadn't changed any settings the hour later I came down the night before. Sometimes I just begin to think my planets are just not lined up. It sounds like my DAT has a problem since it is not sending or accepting optical. I keep you posted. ------------------ Jim T. Jim T. Link to comment Share on other sites More sharing options...
Anderton Posted September 21, 2000 Share Posted September 21, 2000 Jim sent me an email that I thought was worth sharing... "I had to dig deep, but I found an advanced setting which showed invert S/PDIF. That solved the problem when I checked it. I do not know how it got changed since I had such a hard time finding it. I also noted a hum when monitor S/PDIF in analog was checked. I also downloaded the new drivers for DIO24/48 from the M Audio site. They showed new vol and advanced controls. The new drivers also analyze whether to invert the S/PDIF or not. I guess I need to learn that the term 'standard' can still mean 'options.' If there is an optical S/PDIF "standard" why should we have to invert? I am still hoping that CD RedBook "standard" is still 16/44.1." Can anyone expound on the nature of inverted SPDIF? Why would it need to be inverted, anyway? Craig Anderton Educational site: http://www.craiganderton.org Music: http://www.youtube.com/thecraiganderton Twitter: http://www.twitter.com/craig_anderton Link to comment Share on other sites More sharing options...
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