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How to take I2S from CEC TL-1 to connect the Teleporter - Russ White
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felipe  
#61 Posted : Tuesday, September 18, 2012 6:52:14 PM(UTC)
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Teleporters handle 3.3V are 3.3Vpp or 1.75Vpp?
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felipe  
#62 Posted : Wednesday, September 19, 2012 11:12:28 AM(UTC)
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I tried other tested I2S source (Lucien aka Lorien DiyAudio forum) to be sure is true I2S signal because B3 trought Sidecar plays perfect, using Teleporters USB-I2S>teleporter emitter>teleporter receiver>sidecar = no sound, pics of real I2S scope shoots:

1-Bitclock input Teleporter receiver, scope set 2V/cm 0,5us

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2-Wordclock input Teleporter, scope set 2V/cm 10us

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3-Data input Teleporter, scope set 50mV/cm 0,5us

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As you can see aren't too different vs I2S CEC source so now I really suspect of Teleporters.

Please help.
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felipe  
#63 Posted : Wednesday, September 19, 2012 12:11:09 PM(UTC)
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Brian you have email.
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Brian Donegan  
#64 Posted : Wednesday, September 19, 2012 12:58:39 PM(UTC)
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Each Teleporter is hand tested by me. I feed 24-bit/96kHz I2S from a WM8804 module, then a Teleporter, through the test unit, then into an Opus DAC.

I am 100% confident that each Teleporter works.

What you want to check with the scope is compare each transmitter Teleporter channel input and the corresponding output from the receiving Teleporter. Do you see any differences?
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felipe  
#65 Posted : Wednesday, September 19, 2012 1:38:57 PM(UTC)
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I'm sorry Brian swaped WDCK - BCK between Lorien USB-I2S - Teleporter emitter, now sounds OK so I look for in other direction CEC I2S lines.
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