Originally Posted by apsisband
I've been wondering about this exact scenario as well. Please update us on how it turns out.
Well it appears the Hosa ODL-312 is bit transparent up to 24bit 96K which is a good thing…
This is assuming that my testing method is correct & truly tests the unit up to 24bit, I will outline my test procedure below so that anyone with more knowledge in this area can check to see if my test was valid…
(please do btw, I really want to know)
I created a 24bit 96k session in Pro Tools.
Created a stereo 30 second 0.0db test tone using signal generator containing 10 seconds of Pink Noise, 5 seconds of White Noise and 15 seconds of Sine Wav running from 20Hz through to 20,000Hz
Sent the test tone out of the Optical S/PDIF into the Hosa ODL-312 IN
Attached a loopback AES cable between AES IN//OUT on the Hosa ODL-312
Attached the Hosa’s ODL-312 Optical S/PDIF OUT to the Pro Tools Optical S/PDIF IN.
I recorded the returning signal into a new track
Flipped the polarity (phase if you prefer…) & compensated for the delay…
The two tracks when played together null completely.
Also carried out the test at 24bit 48k with the same results…