2020-05-30, 04:07 PM
Sure thing!
Dolby SDU4 Hardware Dolby Stereo/Surround decoding
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2020-05-30, 04:07 PM
Sure thing!
2020-05-30, 08:31 PM
This is awesome, love the 4 channel mixes Fox used to put on their 4K discs
2020-05-30, 10:31 PM
(2020-05-30, 08:31 PM)dvdmike Wrote: This is awesome, love the 4 channel mixes Fox used to put on their 4K discs Of course they have decided to do that after reading my own guide here: https://fanrestore.com/thread-395.html
2020-06-03, 10:16 PM
SDU4 is in its new home now... at 13€ (yup!) I can't abandon it to its destiny... now, when I'll be able to put in operation, would be another thing (along with finding XLR-RCA cables!)
EDIT: found this nice paper, could be useful as it has some info not found in the manual 🔍https://dlscrib.com/downloadFile/5b5899b...905c8c2e5f EDIT 2: according to this Dolby paper, the SDE4 (the encoder) is analog, hence the SDU4 *must* be analog, too! 🔍https://developer.dolby.com/globalassets...manual.pdf
2020-06-05, 01:22 PM
Plan:
- get a sound card with at least 4 analog ins - get XLR to TRS or RCA cables - get my laserdisc player and discs - start to test I'm thinking about this: 🔍https://www.presonus.com/products/FP10 - found at a very nice price. I guess a simple USB/FireWire connector should do, right? @TomArrow: tell me, can you find cheap XLR-TRS 6.35 cables there? Here female XLR-male TRS are 20€ EACH!!! So connecting a 13€ decoder would cost 80€ + male XLR-male TRS (that "should" be only 7€/pair)...
2020-06-05, 01:41 PM
Cables aren't cheap sadly but that does seem a bit high. I get mine from thomann typically. Have you looked on ebay?
2020-06-05, 07:47 PM
Right now watched a bit on eBay; prices are around 5€ each but without shipping... continued to search locally, I've found female XLR - male TRS 6.35 for 7€, so with 7x4+7=35€ I should get everything - still 3x the price of the decoder, though!
Any idea about the Presonus? Reading a review on soundonsound, it seemed nice (at the time) so I guess that, even if not exceptional in comparison with high end units, it should suffice, with its 24bit 96kHz ADCs; if it works with VirtualDub it will be perfect... I could, for example, grab the laserdisc digital out AND the SDU4 analog out at the same time - even talking about DTS or AC3 (through demodulator)!!!
2020-06-05, 07:51 PM
I don't know much anything about the presonus unit, sorry. You could try and find RMAA (Rightmark audio analyzer) tests and spec sheets for it, that's what I usually do when researching an audio interface. Things like dynamic range, distortion (I think it's called THD, Total Harmonic Distortion), but the best thing is to find test graphs.
Edit: Can also look on the gearslutz forum for threads about it, but their opinions are usually rather subjective.
2020-06-05, 08:25 PM
Thanks for the input; found here: 🔍https://m.midifan.com/article_body.php?id=1397
for the laziest: Not bad at all; the dynamic range is more than enough for an analog surround decoder, THD is great, so I guess I'll jump on it at 50€, what do you think? Cables: 4x 🔍https://www.magnetola.lt/laidai-su-xlr-m...o-15m.html 2x 🔍https://www.muzikosfaktorius.lt/pd-conne...stereo-15m so 6x7€ = 42€ please check if they are the right ones!
2020-06-05, 08:29 PM
Looks decent for that price, I say go for it. You can always upgrade later, worst case. Cables seem about right and yeah that cable price is about usual unless you can find them at a flea market as a bargain.
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