What is KVR Audio? | Submit News | Advertise | Developer Account

Options (Affects News & Product results only):

OS:
Format:
Include:
Quick Search KVR

"Quick Search" KVR Audio's Product Database, News Items, Developer Listings, Forum Topics and videos here. For advanced Product Database searching please use the full product search. For the forum you can use the phpBB forum search.

To utilize the power of Google you can use the integrated Google Site Search.

Products 0

Developers 0

News 0

Forum 0

Videos 0

Search  

SPDIF coaxial switcher?

Configure and optimize you computer for Audio.

Moderator: Moderators (Main)

szurcio
KVRian
 
526 posts since 24 Nov, 2005

Postby szurcio; Sat Feb 22, 2014 2:15 pm SPDIF coaxial switcher?

I'm looking for something that could switch between 2 digital coaxial (not toslink) inputs. I use digital outputs from 2 synths and my audio interface has only 1 spdif input. In an ideal situation, I would just select which instrument I want to use without having to unplug one coaxial cable to plug in the other. Does such a thing even exist?
User avatar
aciddose
KVRAF
 
9056 posts since 7 Dec, 2004, from Vancouver, Canada

Postby aciddose; Sat Feb 22, 2014 2:40 pm Re: SPDIF coaxial switcher?

That would just be a single ordinary mechanical switch. Are you using RCA or BNC jacks? Yes I have seen switches for just about every connector type you can imagine, and if you have trouble sourcing one type of connector you can just adapt to another.

Image
User avatar
Phil999
KVRist
 
147 posts since 26 Sep, 2013, from Cavardiras, CH

Postby Phil999; Sat Feb 22, 2014 2:48 pm Re: SPDIF coaxial switcher?

one solution is to make a hardware switch yourself. I did this, and doubted that this would work, but it does. It's a 3-way switch taken from an old tape deck or amp, and I can switch between three sources. The connection is done instantly as long as the source is sending SPDIF. I have this since a couple of years, the switch is attached to a 19" rack, and I still find it kind of cool to manually change the SPDIF input with a simple mechanical switch.

Sure there are more sophisticated solutions, costing lots of money. One more reason why I'm so happy with my primitive hardware switch which costed me nothing. And working perfectly well. It takes about a second for the receiving unit (in my case a t.c.electronics M.One) to recognise the source/sampling rate.
szurcio
KVRian
 
526 posts since 24 Nov, 2005

Postby szurcio; Sat Feb 22, 2014 3:23 pm Re: SPDIF coaxial switcher?

I use coaxial spdif cables. I found something like this for toslink cables:
http://www.amazon.com/ViewHD-TOSLINK-Di ... =pd_cp_e_0
But I can't locate coaxial switchers.
User avatar
aciddose
KVRAF
 
9056 posts since 7 Dec, 2004, from Vancouver, Canada

Postby aciddose; Sat Feb 22, 2014 5:23 pm Re: SPDIF coaxial switcher?

What you do mean coaxial? BNC?

Or do you mean like the screw connector for television cables?

Switch to BNC, you can find BNC cable switches no problem. There are tons and tons and tons from when coaxial BNC was used for ethernet.

BNC is the best connector for infrequently plugged cables. It is the connector for scientific or other purposes.

The screw connector (I'm not aware of the name of it) I'm not sure about. No idea why they choose to use this instead of BNC. Possibly at the time it was standardized, BNC hadn't been invented.
BertKoor
KVRAF
 
8306 posts since 8 Mar, 2005, from Utrecht, Holland

Postby BertKoor; Sun Feb 23, 2014 3:02 pm Re: SPDIF coaxial switcher?

spdif on coax is usually RCA plugs, not BNC. As said, ANY switch will work. Here's one not too expensive:

Image
We are the KVR collective. Resistance is futile. You will be assimilated. Image
My MusicCalc is back online!!
User avatar
aciddose
KVRAF
 
9056 posts since 7 Dec, 2004, from Vancouver, Canada

Postby aciddose; Sun Feb 23, 2014 3:19 pm Re: SPDIF coaxial switcher?

Normally RCA/phono of course, but I just couldn't figure how you'd be unable to find a switch. Easy to find RCA switches and they can always be adapted to something else with very little effort.

RCA/phono is pretty much BNC with a thicker center pin and no twist-lock.
camsr
KVRAF
 
4593 posts since 16 Feb, 2005

Postby camsr; Sun Feb 23, 2014 3:22 pm Re: SPDIF coaxial switcher?

Not all switches are the same though, don't try something that simple with high currents!
For SPDIF it's okay, but a quality switch ensures no blown electronics.
Image
szurcio
KVRian
 
526 posts since 24 Nov, 2005

Postby szurcio; Sun Feb 23, 2014 8:14 pm Re: SPDIF coaxial switcher?

aciddose wrote:Normally RCA/phono of course, but I just couldn't figure how you'd be unable to find a switch. Easy to find RCA switches and they can always be adapted to something else with very little effort.

RCA/phono is pretty much BNC with a thicker center pin and no twist-lock.

I found some regular RCA switches but wouldn't they also convert digital to analog? I wanted to keep digital audio all the way through to the interface. I'm sorry for my ignorance...
User avatar
aciddose
KVRAF
 
9056 posts since 7 Dec, 2004, from Vancouver, Canada

Postby aciddose; Sun Feb 23, 2014 8:46 pm Re: SPDIF coaxial switcher?

That doesn't make sense. To go from digital to analog, there would need to be a DAC. It is a switch, not a DAC.

The digital signal is a series of pulses (on/off) on the line. It is exactly like an analog signal, only it is digitally clocked and only contains square-waves (pulse waves).

A digital signal is already analog, it never stops being analog. What makes it digital is that it has certain properties, as I said it is divided down from a clock and has only two states (0,1).

So a digital signal is a special type of analog signal that follows certain rules.

Switching either type of signal is exactly the same. You just connect the wires together.

A switch is exactly like unplugging the wire, then plugging into another position. The reason we use a switch instead is so we don't need to do this unplug/plug over and over again, a switch is easier to use.
BertKoor
KVRAF
 
8306 posts since 8 Mar, 2005, from Utrecht, Holland

Postby BertKoor; Mon Feb 24, 2014 1:32 am Re: SPDIF coaxial switcher?

aciddose wrote:I just couldn't figure how you'd be unable to find a switch.
Well, if you go looking specifically for a spdif switch, I'm not surprised you find none.

As stated above, a switch is just a switch. Unless the box requires a mains power adapter or batteries, then it contains electronics which could not let the digital signal go past it undistorted (it has very high frequency content, but otherwise it's just an electrical signal)
We are the KVR collective. Resistance is futile. You will be assimilated. Image
My MusicCalc is back online!!

Moderator: Moderators (Main)

Return to Computer Setup and System Configuration