Search found 1739 matches

by Music Manic
Wed Feb 17, 2021 7:29 pm
Forum: General Scope Discussion
Topic: Anlogue output levels
Replies: 9
Views: 1457

Re: Anlogue output levels

If you're looping out of the RCA out, directly back to the RCA in, you should not be seeing a ~10dBf drop in levels. This large of a gain change will only occur when going through devices that have different signalling levels (presuming no DI box or etc is being used inline to compensate for this i...
by Music Manic
Tue Feb 16, 2021 10:27 pm
Forum: General Scope Discussion
Topic: Anlogue output levels
Replies: 9
Views: 1457

Re: Anlogue output levels

Sure Valis. My test is the signal from the DAW which I’d dBfs to the analogue out looped backed to the analogue in back into the DAW. The signal reads much lower on the dBfs scale which means the conversion by the scope D/A RCA outs is in the realm of -10dBv. When I test the XLR loop back signal it ...
by Music Manic
Tue Feb 16, 2021 8:00 pm
Forum: General Scope Discussion
Topic: Anlogue output levels
Replies: 9
Views: 1457

Re: Anlogue output levels

This is correct. Dbfs is a measurement in the digital realm and shouldn't be applied to analog levels. I understand that. My question is the output level at the D/A stage which means there has to be a voltage level. Recording the output back into the analogue input shows the drop in level which mea...
by Music Manic
Tue Feb 16, 2021 2:10 pm
Forum: General Scope Discussion
Topic: Anlogue output levels
Replies: 9
Views: 1457

Anlogue output levels

I'm just testing my setup and I've setup an analogue (RCA) out to in loop to record the signal. My question is what is the output level converted to by the A/D? Is it a line level 0dBvu out. -18dBfs so to speak?

Thanks
by Music Manic
Mon Feb 15, 2021 4:42 pm
Forum: Problem Solving
Topic: Sine Wave test
Replies: 17
Views: 2333

Re: Sine Wave test

fra77x2 wrote: Thu Jan 28, 2021 8:11 pm Have you recorded the waveform and observe it in a wave editor?
I’ve just tried re-recording the sine wave at 10kHz through the analogue I/O and it was a perfect sine wave.
It is purely a graphical mis-representation.

You learn something new every day.
by Music Manic
Mon Feb 15, 2021 4:28 pm
Forum: Tech Talk
Topic: PCI Express x1 to PCI/PCI-X Adapter Card
Replies: 26
Views: 7015

Re: PCI Express x1 to PCI/PCI-X Adapter Card

I‘m no expert in the mobo domain, but as an example (long story made very short): My Win7 PC runs from a PCIe flash disk, data drive is an USB3 SSD, no SATA drives, Pulsar II running fine, though a fairly low performer in PCI bandwidth (the machine was never intended to run Scope). For some reason ...
by Music Manic
Mon Feb 15, 2021 2:10 pm
Forum: Tech Talk
Topic: PCI Express x1 to PCI/PCI-X Adapter Card
Replies: 26
Views: 7015

Re: PCI Express x1 to PCI/PCI-X Adapter Card

why? an adaptor is not the same as an actual PCI slot, performance-wise, and you will have to really modify the case to use the card. if you must use obsolete gear, get a motherboard that supports it. jmho. I would just like to use an old Pulsar I card’s DAC for the analogue outs on an updated mobo...
by Music Manic
Sun Feb 14, 2021 10:58 pm
Forum: Tech Talk
Topic: PCI Express x1 to PCI/PCI-X Adapter Card
Replies: 26
Views: 7015

Re: PCI Express x1 to PCI/PCI-X Adapter Card

that‘s the opposite ;) you need this type https://www.amazon.co.uk/StarTech-com-PCI-Express-Adapter-Card/dp/B0024CV3SA?th=1 (they have several, didn‘t check them all) but the rised card won‘t fit regular case backs (as mentioned) :lol: that’s what happens when I don’t sleep. Thanks for the help. My...
by Music Manic
Sun Feb 14, 2021 6:21 pm
Forum: Tech Talk
Topic: PCI Express x1 to PCI/PCI-X Adapter Card
Replies: 26
Views: 7015

Re: PCI Express x1 to PCI/PCI-X Adapter Card

The PCI connector spacing looks like it’s for 3,3V cards, not Pulsar II’s 5V. I have a similiar one with a 5V slot that does handle Scope cards fine - but there isn‘t much to recognize as the PGA chip more or less just switches slot signals between the 2 environments. If in use the added height mov...
by Music Manic
Sat Feb 13, 2021 6:18 am
Forum: Problem Solving
Topic: Sine Wave test
Replies: 17
Views: 2333

Re: Sine Wave test

Can only guess since I don't know neither what you use to generate or analyze the sine wave. But generally, unless the oscilloscope applies a sinc function, high frequencies will become jagged since unlike the output from the DAC which has sinc applied, it will just draw a straight line between sam...
by Music Manic
Sat Feb 13, 2021 6:11 am
Forum: Problem Solving
Topic: Phase issues
Replies: 17
Views: 1982

Re: Phase issues

I'm happy fra77x2 had the time to go into a long explanation..Busy week here. Phasefix-x is a good tool to verify when this is occuring imho. What I do is simply use the invert button to verify that there is indeed a phase shift. This only works with a mono signal of course, where there's no "...
by Music Manic
Sat Feb 13, 2021 6:04 am
Forum: Tech Talk
Topic: AMD Ryzen 9 3900X
Replies: 6
Views: 2608

Re: AMD Ryzen 9 3900X

Here's an old board, which has two PCI and will run 3900X with BIOS update 4801. ( I own one of these with an 2700X) https://www.asus.com/de/Motherboards-Components/Motherboards/All-series/PRIME-X370-A/ My music PCs are 10 years old, and I optimised them to low latency, disabled all that Win10-shit...
by Music Manic
Fri Feb 12, 2021 12:35 pm
Forum: Tech Talk
Topic: PCI Express x1 to PCI/PCI-X Adapter Card
Replies: 26
Views: 7015

PCI Express x1 to PCI/PCI-X Adapter Card

http://pridopia.co.uk/8114etx.html

Would this work to hold a Pulsar 2 PCI card? Will it still recognise the card?
by Music Manic
Fri Feb 12, 2021 8:11 am
Forum: Tech Talk
Topic: AMD Ryzen 9 3900X
Replies: 6
Views: 2608

Re: AMD Ryzen 9 3900X

You can still find mobo with pci, but they are industrial boards, while the 3900x is consumer line. At work we just bought boards with Xeons and 2 pci slots. ( You even could still buy ISAslots these days !) Can they compete with these CPUs though? I will never give up scope but the x54 bit O/S has...
by Music Manic
Fri Feb 12, 2021 7:31 am
Forum: Tech Talk
Topic: AMD Ryzen 9 3900X
Replies: 6
Views: 2608

Re: AMD Ryzen 9 3900X

Ok thks Gary. I have the MSI one to keep my pci alive. I still think the Scope DSP sound quality is great. A shame it can’t solely by used for that on modern boards. They look so so fast and efficient now. DSP still has it’s benefits
by Music Manic
Fri Feb 12, 2021 6:48 am
Forum: Tech Talk
Topic: AMD Ryzen 9 3900X
Replies: 6
Views: 2608

AMD Ryzen 9 3900X

Are there any MOBOs that support this with a single PCI or is PCI a bottleneck in the modern day?
by Music Manic
Thu Feb 11, 2021 2:30 pm
Forum: Device/Module Wishlist
Topic: DSP assignment wrapper
Replies: 2
Views: 4168

Re: DSP assignment wrapper

scope> project window> right click on device> popup menu> dsp (only single selection). but then the performance screams quickly. also a multi dsp force would be interesting (2,3 ...) toy, mmmhhh... i'm afraid no, because it is like a heart surgery , but i will see... Sure because if I set up: Maste...
by Music Manic
Thu Feb 11, 2021 9:20 am
Forum: dNa Devices
Topic: DSP Assignment.
Replies: 6
Views: 14019

DSP Assignment.

Would it be possible to just add DSP assignment to dNa plugins for phase compatibility in my mastering chain. I believe this would be a perfect addition with the DAW.
by Music Manic
Thu Feb 11, 2021 7:42 am
Forum: Scope and XITE Development
Topic: Modifying device in SDK
Replies: 2
Views: 2382

Modifying device in SDK

Is it possible to modify devices in SDK. When I import a device it asks me for the key but the device doesn’t load after I’ve imported it. Is the SDK just for new creations?
by Music Manic
Thu Feb 11, 2021 7:31 am
Forum: Device/Module Wishlist
Topic: DSP assignment wrapper
Replies: 2
Views: 4168

DSP assignment wrapper

After the phase issue discussion and fra77x2 advice would it be possible to create a device which forces a device on a single DSP to avoid phase issues?

Thanks