Equipment TASCAM US144 MKII, MKI, and EMU 0404 (all similar devices) using ASIO Meridian G68 Transporter
What works. If I Test My Meridian driving SPDIF from TASCAM and Recording Analog out with TASCAM it looks pretty clean. One small bump at 60hz. Normal Volume. More importantly Calibration Test passes. If I Test Transporter driving SPDIF from TASCAM and Recording Analog out with TASCAM is looks pretty clean. Max Volume. One small bump at 60Hz. Unbalanced. I did not do Volume test again with better cables and carefully routing unbalanced away from any power cords. Because I want to understand why a WAV won't work first. More importantly Calibration Test passes. What does not work: Then I do the exact same test on Transporter but instead of Driving with SPDIF. I play a .WAV file with test signal. Calibration Test says signal is distorted. I verified I can Play a WAV file on PC out on SPDIF and Analyze it from another PC recording it SPDIF. Got perfect results as expected. So I know the WAV procedure works. My balanced inputs on TASCAM don't seem to be correct level sensitivity to try balanced outputs on Transporter. I think it has something to do with clocks. When I drive the TASCAM (or EMU) the Clock from SPDIF output of TASCAM is used for the ADC of Analog coming back. I even tried using the internal clock of the TASCAM to drive clock on Transporter. I know this was clocking it. Because no data was actually going over it and if I pulled it everything stopped. Also if I changed RightMark to 88.2 the 44.1Khz the song Transport was playing played double speed. So I can record the analog great if driven by SPDIF directly. But I can't record it (and pass calibration tests) if it uses it's own internal clock. If I run the test anyway it's total junk. The exact same thing happens if I record the Meridian Analog while Transporter plays a file. I can record the file digitally out of the Transporter and it works perfect as expected. Since one side is analog you would not think clocks would matter. But I think they do. I'm curious how folks tested SqueezeBox and Touch with Right Mark. I tried 16/44, 24/44 and 24/88. All the same thing. Oh, if I play a DTS file on Transporter Meridian will decode it. Nothing is mucked with. To SqueezeServer and Transporter it looks just like a FLAC with a WAV in it. If Volume is changed from 100 it will not decode. But just in case I wiped SqueezeServer install and reinstalled (including all settings). -- mswlogo XP > Cat5 > Transporter/DuetController > SPDIF > Meridian G68 > DSP6000, DSP5500HC, DSP5000 XP > Cat5 > SB3 > SPDIF > Meridian DSP5000 XP > Cat5 > DuetReceiver > SPDIF > Meridian G91 > DSP5000 'My Transporter Setup' (http://forums.slimdevices.com/showpost.php?p=350741&postcount=45) 'Hitch Hikers Guide to Meridian' (http://www.meridianunplugged.com) ------------------------------------------------------------------------ mswlogo's Profile: http://forums.slimdevices.com/member.php?userid=9090 View this thread: http://forums.slimdevices.com/showthread.php?t=78451 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
