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Hi all, I think I have been banned from TPA due to inactivity lately. I had to register again  But my windows mediacenter crached this week. After re installation I was going trough some settings again of the sample rates windows offer. According to the specs the DAC BIII should be able to handle the highest bitrate windows offer. (32/192khz) I use the BIII in combination with the WaveIO which should also be able to handle 32/192. Nevertheless music reproduction stops at levels higher than 32/48kHz. Anyone any idea how this could be? Thanks! Jordo
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I figure the waveio cicuit must be okay since its showing music reproduction at higher bitrates. Could it have something to do with a clean windows 10 installation?  32192.jpg (123kb) downloaded 3 time(s).Edited by moderator Tuesday, August 15, 2017 7:15:08 PM(UTC)
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I just sent you a password reset for your original account. Not sure why you cannot log in...
It's tough to tell what's up with your setup. My guess is it's a Windows setting, as that sample rate is pretty low. Does it go any higher at 24-bits?
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o thanks, Max bitrate I can select is 24/48000 Edited by user Thursday, August 10, 2017 5:31:42 PM(UTC)
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I'm back! 
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Do you have the latest WaveIO drivers? It might be a question for Lorien
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Yes I have Driver 4.11.0 installed. I'm in contact with Lucian too. If I could post a picture I could show how the bars are moving in windows while playing in higher bitrates. It seems the Teleporter/bIII are limited to 48000Hz? Edited by moderator Thursday, August 10, 2017 6:10:51 PM(UTC)
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So, you can select higher bit rates, but get to audio when you do so?
Is there noise or just silence? Does the Buffalo show lock?
I assume you are using I2S between the WaveIO and Buffalo.
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Yes, no audio when selecting higher than 48000. Does'nt matter with 24 or 32 bit. When higher than 48000 only silence. The lock is lost at higher rates (on both DAC's in dual mono setup) I use I2s with the Teleporter... Edited by user Thursday, August 10, 2017 7:02:42 PM(UTC)
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Hi all, I was in contact with Lucian and we checked some settings and different players. One of them is foobar. Here too when higher bitrates are selected, foobar keeps playing, the waveio registers the higher bitrates but the lock of the DAC is lost. Yesterday I received my iMac which I connected to the audio system (plug and play). Music was reproduced but when editing the settings to higher bitrates no music was reproduced anymore. I think we can cutout the software system (OS) and I think we might conclude the WaveIO works well too. That leaves me with the suspicion that the DAC is not able to precess higher bitrates.... What could be causing this?....  Edited by user Saturday, August 12, 2017 2:02:56 PM(UTC)
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If you use each of the DACs individually (not dial mono), do either of them lock on higher bit rates?
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Hi
Remember, the higher sample rate the more current the DAC consumes.
Are you running out of juice?
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Ok thanks guys, I will check it when I'm back from work.
Last time I checked I adjusted the Shunt currents to 60-70 mA and I've got quite an over capacity. But you never know what causes the voltage to drop suddenly.
Thanks for the tips, I will report back!
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Dear Brian and avr300, I just measured the voltages of the Placid HD's. They show 5,25VDC. The shunt current shows a 65-70mA. With higher Bitrates selected their values remain steady. But the lock is lost immediately. Disconnecting one or the other DAC at the DIN connector shows no positive result. I checked the voltages and currents of the WavIO/Teleporter system as well. Also very good. I shunt maximal power to the WaveIO from the placid. So no abnormalities so far.... I also played with the DIP Sw settings. With Sw 2:4 OFF (Bypass) the bitrates can be set to a maximum without losing the lock but the music reproductions stops... This setting means that the BIII DAC's clock is not used. With Sw 2:5 in ON, only the RH DAC looses it's lock light. I remember an earlier case of mine now where I encountered the same issue some time ago... I was advised to use the BIII clock and use resampling while getting better results with the bypass mode just as now. http://www.twistedpearaudio.com...3634-BIII-Clock-Dropouts. . . Edited by user Sunday, August 13, 2017 10:35:18 AM(UTC)
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I was thinking about the possibility of two DAC failures with the same symptoms... What are the odds?
I will connect the WaveIO directly to the DAC's. Maybe also cutting out the Sidecar. See what it does...
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Quote:With Sw 2:4 OFF (Bypass) the bitrates can be set to a maximum without losing the lock but the music reproductions stops...
This setting means that the BIII DAC's clock is not used.
With Sw 2:5 in ON, only the RH DAC looses it's lock light. 2:4 turns off oversampling, it does not turn off the onboard XO. You should definitely have 2:5 (S/PDIF Auto-detect) turned off. Are you using a MCK from the WaveIO (external clock)? Edited by user Tuesday, August 15, 2017 4:30:30 PM(UTC)
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Hi Brian,
No I do not use the Masterclock of the WaveIO board.
2:5 is OFF.
Ok so with oversampling in OFF the lock LED is remained on with higher bitrates selected. But no music comes out of the speakers.
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Ok, let's start simplifying. Can we take the Teleporters out of the loop, and feed a single Buffalo with the WaveIO? It would be helpful to see a picture of your setup as well. [EDIT]: How are you powering the Teleporters? Edited by user Tuesday, August 15, 2017 7:24:07 PM(UTC)
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I tried to connect the WaveIO directly to the Sidecar but I had no succes yet. I will try again tomorrow. I'm powering both Teleporters with Placid HD's. I have troubles uploading pictures in this website so I will post some links of my project gallery if that is okay.. resource.ashx.jpg (183kb) downloaded 13 time(s). resource.ashx.png (60kb) downloaded 15 time(s).project gallery. . . . Edited by user Wednesday, August 16, 2017 10:00:50 AM(UTC)
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It sounds to me like you have a power supply sagging under load. Measure it while playing the different sample rates.
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