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Audio capture

 
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Guest
(MXO)







PostPosted: Wed Mar 28, 2012 4:07 pm    Post subject: Audio capture Reply with quote

Is it possible to use PC sound card analogue input when capturing from Y/C or SDI to Premiere Pro as Mojito MAX does not have RCA Audio input? If yes, how about audio and video synchronization between sound card and Mojito MAX as there is no Audio Capture Drift Detection test like it was in RT.X100?
If usage of PC sound card is not possible, same question about audio and video synchronization if using RCA unbalanced to XLR balanced converter between capture device and Mojito MAX?
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Matrox_Presales
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Joined: 04 Jul 2005
Posts: 882

PostPosted: Thu Mar 29, 2012 9:16 am    Post subject: Reply with quote

Hello and thank you for your interest in Matrox products. I am not sure what you mean when you say that the Matrox Mojito MAX does not have RCA audio inputs. You can see that the Matrox Mojito MAX has many of the mot popular Inputs and Outputs for both Audio and Video http://www.matrox.com/video/en/products/mojito_max/io_connections/#close

If you could clarify your question I can ask our product manager about this in more depth. If you would like to compare models you can see all of the I/O capabilities of our Matrox products here: http://www.matrox.com/video/media/pdf/products/mxo2/en_compare_models.pdf

regards,

JD
Customer Care
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Guest
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PostPosted: Thu Mar 29, 2012 10:41 am    Post subject: Audio capture Reply with quote

Matrox_Presales wrote:
I am not sure what you mean when you say that the Matrox Mojito MAX does not have RCA audio inputs.

Hello, I mean exactly what I asked as Mojito MAX does not have RCA Audio (unbalanced) input. It have everything else (XLR Audio (balanced), AES/EBU (unbalanced), SDI embedded audio, HDMI embedded audio (8 channels)) but no RCA (unbalanced) input (most popular).
It has only RCA audio output!

I know I/O capabilities of other Matrox products but are interested about Mojito MAX and therefore asked possibilities to input audio from RCA (unbalanced) source.
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Matrox_Presales
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Joined: 04 Jul 2005
Posts: 882

PostPosted: Thu Mar 29, 2012 1:44 pm    Post subject: Reply with quote

Hello and thank you for your interest in Matrox products. I would first like to apologize in regards to my confusion. I have always known the Matrox Mojito Max to be the PCIe card equivalent to the matrox MXO2 LE with MAX. The difference is the Mojito MAX does not have RCA inputs.

In regards to the outputs we have RCA outputs for monitoring with regular speakers. On the inputs we have XLR Balanced which you can use with RCA provided you get the proper adapter that has a Impedance Transformer. You can set the Ohms from 0 to 75.

When it comes to PC you can't use the sound card to capture, only preview on output. When capturing, our UI will only let you choose the options that are on the actual MXO2 board.


regards,

JD
Customer Care
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Guest
(MXO)







PostPosted: Thu Mar 29, 2012 3:44 pm    Post subject: Audio capture Reply with quote

I cannot find any Impedance Transformer with RCA, mostly they are with 1/4 plug and none of them are 0 to 75 Ohms. Converters that have RCA input and XLR output have 100k Ohms input and 100 Ohms ouput or 10kΩ input and 50Ω output. As I do not understand much from audio, can you name some Impedance Transformer model that should do the job with Mojito MAX?
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Matrox_Presales
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Joined: 04 Jul 2005
Posts: 882

PostPosted: Fri Mar 30, 2012 3:11 pm    Post subject: Reply with quote

Hello and thank you for your contnued interest in Matrox products. I have done some digging and this product will change your unbalanced RCA and turn it into Balanced XLR http://www.fullcompass.com/product/358015.html

This Dual Stereo Matchbox Converter will take a consumer stereo RCA signals to balanced XLR professional line level.

There are other products out there if you would like to look:

http://www.fullcompass.com

http://www.neutrik.com/en/accessories/

http://www.broadcast-support.de/en/Hardware/AES-Impedance-Converter-PICOLINO/RCA-XLR-Variant

regards,

JD
Customer Care
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