Planned to develop analogue input modules for 10k1 and 10k2 cards

TravelRec. · Mar 3, 2009, 03:31 AM

Hi guys and girls,

I recently got some old 10k1 cards and I found out, that most of them have different kinds of inputs for I2S digital data streams and that are not used, except for the "LiveDrive" external bays. So I want to wire some external A/D converters to these pins to equip a plain SB-Live!, that has only one AC97 input at a time, with 3 or 4 additional high quality analogue stereo inputs. I only want to ask if there is some interest in the community, so then I will open-source the project. There are some different printed circuit boards (PCBs) to design and then you can build the boards with only some easy to get parts for yourself (or ask a friend with electronic skills

). The A/D converter I want to use is a CirrusLogic CS5343, which has physically 24Bits/96kHz, but only 16Bits/48kHz is used by the card. The I2S pins go directly to the DSP and are not resampled before, cause they are locked to the system-frequency of the 10kX. So tell me your opinion.

Greetings,
TravelRec.

EDIT: All plans and documentation you will find here: http://www.electricstart.de/site/elec.htm#Mod_Aud

Tyrsonswood · Mar 3, 2009, 08:21 AM

This sounds like an interesting project, I don't know what I could do on the development end of it but I would build something like this if boards and parts were available. In other words, I solder well but I'm not an electrical design guy. I've got 3 SB lives and one audigy (with the "drive") between my two recording systems. It would be great to add additional inputs to the live cards so I don't have to buy another audigy with the "drive" for my new system in the basement.

It would be nice to have a high quality preamp before the a/d converter also but this may make the project too big for development....... I'm thinking something like a pro quality "drive bay" setup.

How many inputs per card is possible? and would multiple cards still work for additional inputs?...... Stacking cards, the way I do now, linked via spdif.

TravelRec. · Mar 3, 2009, 09:16 AM

Hi Tyrsonswood,

the preamp is possible in the next step, but it will be more expensive than the A/D dongle.

The number of new inputs depends on the card model. Since the 10k1 chip is the same on all Live! cards, potentially all cards have 4 independent I2S inputs, that results in 4 stereo or 8 mono channels. But some older or value cards are not equipped with the AUD_EXT-Header, so the wires must then soldered on the 10k1-chip itself, which is a bit ticky due to the fine pitch design.

The SPDIF channels are independently usable and the chaining of cards is not affected by adding I2S dongles.

Tyrsonswood · Mar 3, 2009, 09:51 AM

TravelRec.

The 3 live cards I mentioned all have the aud_ext header, I have a 4th card that doesn't but it's in this system that I use for internet stuff and not recording, so I didn't include that in my count.

8 mono inputs plus SPDIF would be 10 mono channels in, correct?, SPDIF in being a "mixdown" from the second card, (if I understand that SPDIF link correctly) The second card, in theory, could also have the multiple inputs but would be pre mixed before going to SPDIF as a "stereo" signal, or is there a way to have this as another 8 mono? (even if premixed it would be useful for recording a drum kit with one card and then mixing that with the other instruments in my DAW as a sterio signal)

Amazing to get that from a SB Live! but I always thought it possible because it looks like creative planned a way to stack Live! Drives..... they have a second header on them from what I've seen..... I know this isn't what you are working on, but it probably used the same I2S inputs you are talking about.

I'm slowly wrapping my head around this KX driver stuff, I just found all of this capability last year so I'm way behind the curve compaired to the rest of you. (and a little "slow" at the moment) But I'm basing all my home studio hardware on this KXdriver capability...... I'm very interested in pushing it as far as it will go.

JGSF · Mar 3, 2009, 10:17 AM

I am surely interested in assisting to the development of this.

TravelRec. · Mar 3, 2009, 10:21 AM

The 3 live cards I mentioned all have the aud_ext header, I have a 4th card that doesn't but it's in this system that I use for internet stuff and not recording, so I didn't include that in my count.
8 mono inputs plus SPDIF would be 10 mono channels in, correct?

Yes.

, SPDIF in being a "mixdown" from the second card, (if I understand that SPDIF link correctly) The second card, in theory, could also have the multiple inputs but would be pre mixed before going to SPDIF as a "stereo" signal, or is there a way to have this as another 8 mono?

The thing is, that you only can transfer a stereo stream per SPDIF link, so you have to wire one SPDIF cable for each stereo input from one card to the other.

(even if premixed it would be useful for recording a drum kit with one card and then mixing that with the other instruments in my DAW as a sterio signal)

Of course!

Amazing to get that from a SB Live! but I always thought it possible because it looks like creative planned a way to stack Live! Drives..... they have a second header on them from what I've seen..... I know this isn't what you are working on, but it probably used the same I2S inputs you are talking about.

The Live!Drive uses I2S indeed, but I don´t know which I/O port, since I never had a Live!Drive. I believe, it uses both SPDIF in and out and I2S in.

I'm slowly wrapping my head around this KX driver stuff, I just found all of this capability last year so I'm way behind the curve compaired to the rest of you. (and a little "slow" at the moment) But I'm basing all my home studio hardware on this KXdriver capability...... I'm very interested in pushing it as far as it will go.

That is also my intention.

TravelRec. · Mar 3, 2009, 01:53 PM

Hello again,

the first double A/D prototype board is running on a CT4760. That Live! card gives 3 I2S per default on AUD_EXT, the 4th I2S is grounded directly on the 10k1 chip. The peak noise floor of the inputs is around -80db without shielding, ~8db better than the Line-In. Further tests must be done.

stylus02 · Mar 3, 2009, 05:05 PM

interesting travelrec. i liked your earlier idea of expanding digital in/outs.
at this time i thought analog inputs would be great for using the card as effects board. i think lemury's adc provides 2x2 channel input (audigy?), but more are allways welcome.

could imagine using some (new) plugins like "envelope follower" for acustic instrument triggering a synth voice, real "vocoder"- action with carrier & modulator inputs or a digital mixer. nearly everything is possible...

stylus

stylus02 · Mar 4, 2009, 06:51 AM

where is the a/d converter (circuit) on your pic? is it on the lower side in smd?

stylus

**dj_stick** · Mar 4, 2009, 08:05 AM

Quote:

Originally Posted by TravelRec.

Amazing to get that from a SB Live! but I always thought it possible because it looks like creative planned a way to stack Live! Drives..... they have a second header on them from what I've seen..... I know this isn't what you are working on, but it probably used the same I2S inputs you are talking about.[/FONT]

IIRC, the second header on the Live! Drive was so that it could be used in conjunction with the I/O module that fits in a spare PCI bracket, and has an extra analogue Line Input along with Optical and Coaxial SPDIF I/O

TravelRec. · Mar 4, 2009, 01:46 PM

Quote:

interesting travelrec. i liked your earlier idea of expanding digital in/outs.
at this time i thought analog inputs would be great for using the card as effects board.

Yes, indeed. Additionally it gives users with older 10k1 cards the possibility to do real multitrack recordings without having a Live!Drive.

Quote:

i think lemury's adc provides 2x2 channel input (audigy?), but more are allways welcome.

Yes, the ADC plugin gives you only one AC97 stereo input with 10k1 cards or two ins on newer Audigy cards with the UDA codec, which uses I2S#1 on the card.

Quote:

could imagine using some (new) plugins like "envelope follower" for acustic instrument triggering a synth voice, real "vocoder"- action with carrier & modulator inputs or a digital mixer. nearly everything is possible...

Of course. the only disadvantage of the 10k1 boards is the limitation of ressources in the DSP, for Audigy1 and 2 a lot more plugins can take use of the more inputs.

Quote:

where is the a/d converter (circuit) on your pic? is it on the lower side in smd?

Correct, my digicam was out of energy so I was not able to do a 2nd picture: there are two ADCs near the foil capacitors on bottom side, they are only 3x5 mm in dimension.

Doug W · Mar 5, 2009, 06:36 PM

Great project. I will be watching progress. I haven't made any electronic board projects in a while and like Tyrsonswood above, I can solder but can't really design circuits on the electronic component level even though my job description is "electrical technician". When circuit boards aren't working, we throw them out and put in new ones.

I don't know if there is much we can do but cheer you on "Go TravelRec!". I will even try to make this one when it is finished.

Mac Daddy · Mar 5, 2009, 06:49 PM

Following along here as well interesting project TravelRec.

I do have the electronics background but don't play much with it much anymore do to time limitations. I do this stuff all day at work lol.

Will follow along and pop in if I feel I can offer any suggestions or be of any help.

TravelRec. · Mar 6, 2009, 12:57 AM

OK, guys - I think I can post some details this weekend. Stay tuned

stylus02 · Mar 6, 2009, 07:16 AM

i'm interested too in progress & measurement pics.

stylus

TravelRec. · Mar 6, 2009, 06:42 PM

Some pictures, schematics and layouts.

TravelRec. · Mar 6, 2009, 06:43 PM

And the placement.

Maddogg6 · Mar 6, 2009, 08:33 PM

@Travelrec:
Perhaps a BOM (Bill of Materials) could be posted..

I have a Q... what type of capacitors are C7/8 17/18 ? Ive never seen such a package before.

Mac Daddy · Mar 6, 2009, 09:57 PM

Now I am really interested and as Maddog said what components

TravelRec. · Mar 7, 2009, 04:15 AM

Hi MD6,

the capacitors are MKT/MKS polyester foil capacitors, manufactured by WIMA. Very common capacitors for audio applications with a near endless lifetime and excellent electrical characteristics. See the photo of the top side of the pcb - the red blocks.

And here is the BOM:

Mac Daddy · Mar 7, 2009, 08:29 AM

Thanks for the list metalized polystyrene and polyester caps are used quite a bit in audio I still have a bin full of them kicking around here somewhere.

TravelRec. · Mar 8, 2009, 03:14 PM

Hello again,

attached you will find loopback tests with a CT4760, rear out looped back to ADC module and I2S #1 input. kX-driver 3545b.

Greetings
TravelRec.

Mac Daddy · Mar 8, 2009, 06:25 PM

Cool thanks will check it out

JGSF · Mar 9, 2009, 09:03 AM

Cool stuff!

TravelRec. · Mar 9, 2009, 03:07 PM

It´s me again,

two further tests: RMAA_Test1a is a loopback Rear out -> ADC-I2S module with the same CT4760 card and a better (shorter) cable and RMAA_Test2 is a playback of the test signal from a RealtekHD-Codec ALC888 (Laptop) and a recording via the ADC-I2S module on the CT4760. I think it´s obvious that a good source will give good input signal quality.

Mac Daddy · Mar 9, 2009, 08:59 PM

Cool on the first test and will check these out as well looking good so far

TravelRec. · Mar 10, 2009, 01:20 PM

So - if we want a final solution, what design you will prefer: a daughterboard that fits on AUD_EXT // AD_EXT and the inputs are accessible on a second pci slot cover sheet or do you rather want a modular system with cables to a front bay? The daughterboard will require the space of one PCI or ISA slot, but is easy to design and finally to mount but the modular design can be more flexible in usage, but the mounting effort is much higher, specially for design cases. Both designs will pass through the AUD_EXT // AD_EXT signals to a second header to have the chaining feature via SPDIF. Say something

JGSF · Mar 10, 2009, 02:48 PM

I personally prefer the modular system with cables to the front.

Getting free pci slots is getting harder everytime.

TravelRec. · Mar 10, 2009, 04:26 PM

So this option means, that you will have an adapter card with necessary headers sitting on the soundcard and some separate A/D modules (maximum of 3) and each module will have an 6-pole ribbon cable that is wired to the header card. One module will act as a clock master - others are slaves. Only digital signals are running through the cables, since the A/D conversion happens directly on the A/D modules with short analogue traces. You will need one 3 1/2" or one 5 1/4" drive slot or a similar place on your computer case to fit the modules on a front plate. What kind/size of input sockets you are preferring?

Tyrsonswood · Mar 10, 2009, 06:06 PM

I would use front panel hookups more myself, it fits my studio setups better. For input jacks/sockets what I have are mostly RCA and a few 1/4 inch but I'm flexable on that.... what if the inputs to the board were wired and the individual could then use whatever jacks suit..... if they are short and shielded wires I wouldn't think noise would be an issue but I could be wrong on that. I know some systems are really bad at noise but mine seem fine with just shielded wire from front panel to the cards AUX input and that's about a foot or so long..... I'm not getting any noise that I can hear from that.

Projects like this I would mount in an old CD ROM drive with the guts taken out... I have a 2 input buffer I made done this way, easy mounting in the computer and being metal easy to shield the analog inputs effectively. I'm also cheap and poor so I scrounge things like that all the time.

A dead 3.5 inch floppy drive could be used the same way for a 3.5 mounting.

Of course a nice new circuitboard like you are designing would be worth a fancier housing........ does anybody make 3 1/2 or 5 1/4 project boxes that fit drive bays? I've never seen any.....

Great work Travelrec!!!

Mar 3, 2009, 09:16 AM	#3
TravelRec. Alternative Audioproductions Join Date: Sep 2003 Location: Germany / Sachsen-Anhalt Posts: 1,704 Rep Power: 42	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards Hi Tyrsonswood, the preamp is possible in the next step, but it will be more expensive than the A/D dongle. The number of new inputs depends on the card model. Since the 10k1 chip is the same on all Live! cards, potentially all cards have 4 independent I2S inputs, that results in 4 stereo or 8 mono channels. But some older or value cards are not equipped with the AUD_EXT-Header, so the wires must then soldered on the 10k1-chip itself, which is a bit ticky due to the fine pitch design. The SPDIF channels are independently usable and the chaining of cards is not affected by adding I2S dongles. __________________ Always take a look behind.

Mar 3, 2009, 10:17 AM	#5
JGSF DriverHeaven Senior Member Join Date: Jul 2004 Posts: 450 Rep Power: 0	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards I am surely interested in assisting to the development of this. __________________ My kX plugins (actually it's only one )

Mar 3, 2009, 10:21 AM	#6
TravelRec. Alternative Audioproductions Join Date: Sep 2003 Location: Germany / Sachsen-Anhalt Posts: 1,704 Rep Power: 42	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards The 3 live cards I mentioned all have the aud_ext header, I have a 4th card that doesn't but it's in this system that I use for internet stuff and not recording, so I didn't include that in my count. 8 mono inputs plus SPDIF would be 10 mono channels in, correct? Yes. , SPDIF in being a "mixdown" from the second card, (if I understand that SPDIF link correctly) The second card, in theory, could also have the multiple inputs but would be pre mixed before going to SPDIF as a "stereo" signal, or is there a way to have this as another 8 mono? The thing is, that you only can transfer a stereo stream per SPDIF link, so you have to wire one SPDIF cable for each stereo input from one card to the other. (even if premixed it would be useful for recording a drum kit with one card and then mixing that with the other instruments in my DAW as a sterio signal) Of course! Amazing to get that from a SB Live! but I always thought it possible because it looks like creative planned a way to stack Live! Drives..... they have a second header on them from what I've seen..... I know this isn't what you are working on, but it probably used the same I2S inputs you are talking about. The Live!Drive uses I2S indeed, but I don´t know which I/O port, since I never had a Live!Drive. I believe, it uses both SPDIF in and out and I2S in. I'm slowly wrapping my head around this KX driver stuff, I just found all of this capability last year so I'm way behind the curve compaired to the rest of you. (and a little "slow" at the moment) But I'm basing all my home studio hardware on this KXdriver capability...... I'm very interested in pushing it as far as it will go. That is also my intention. __________________ Always take a look behind.

Mar 3, 2009, 01:53 PM	#7
TravelRec. Alternative Audioproductions Join Date: Sep 2003 Location: Germany / Sachsen-Anhalt Posts: 1,704 Rep Power: 42	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards Hello again, the first double A/D prototype board is running on a CT4760. That Live! card gives 3 I2S per default on AUD_EXT, the 4th I2S is grounded directly on the 10k1 chip. The peak noise floor of the inputs is around -80db without shielding, ~8db better than the Line-In. Further tests must be done. Attached Thumbnails __________________ Always take a look behind.

Mar 3, 2009, 05:05 PM	#8
stylus02 DriverHeaven Lover Join Date: Jan 2008 Location: germany, sb0090 Posts: 158 Rep Power: 0	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards interesting travelrec. i liked your earlier idea of expanding digital in/outs. at this time i thought analog inputs would be great for using the card as effects board. i think lemury's adc provides 2x2 channel input (audigy?), but more are allways welcome. could imagine using some (new) plugins like "envelope follower" for acustic instrument triggering a synth voice, real "vocoder"- action with carrier & modulator inputs or a digital mixer. nearly everything is possible... stylus __________________ http://freenet-homepage.de/stylish-s...xas/index.html Last edited by stylus02; Mar 3, 2009 at 05:13 PM.

Mar 3, 2009, 03:31 AM	#1
TravelRec. Alternative Audioproductions Join Date: Sep 2003 Location: Germany / Sachsen-Anhalt Posts: 1,704 Rep Power: 42	Planned to develop analogue input modules for 10k1 and 10k2 cards Hi guys and girls, I recently got some old 10k1 cards and I found out, that most of them have different kinds of inputs for I2S digital data streams and that are not used, except for the "LiveDrive" external bays. So I want to wire some external A/D converters to these pins to equip a plain SB-Live!, that has only one AC97 input at a time, with 3 or 4 additional high quality analogue stereo inputs. I only want to ask if there is some interest in the community, so then I will open-source the project. There are some different printed circuit boards (PCBs) to design and then you can build the boards with only some easy to get parts for yourself (or ask a friend with electronic skills ). The A/D converter I want to use is a CirrusLogic CS5343, which has physically 24Bits/96kHz, but only 16Bits/48kHz is used by the card. The I2S pins go directly to the DSP and are not resampled before, cause they are locked to the system-frequency of the 10kX. So tell me your opinion. Greetings, TravelRec. EDIT: All plans and documentation you will find here: http://www.electricstart.de/site/elec.htm#Mod_Aud __________________ Always take a look behind. Last edited by TravelRec.; Apr 11, 2009 at 12:00 PM.

Mar 4, 2009, 06:51 AM	#9
stylus02 DriverHeaven Lover Join Date: Jan 2008 Location: germany, sb0090 Posts: 158 Rep Power: 0	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards where is the a/d converter (circuit) on your pic? is it on the lower side in smd? stylus __________________ http://freenet-homepage.de/stylish-s...xas/index.html

Mar 5, 2009, 06:36 PM	#12
Doug W DriverHeaven Senior Member Join Date: Mar 2003 Location: Montevideo, MN USA Posts: 957 Rep Power: 0	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards Great project. I will be watching progress. I haven't made any electronic board projects in a while and like Tyrsonswood above, I can solder but can't really design circuits on the electronic component level even though my job description is "electrical technician". When circuit boards aren't working, we throw them out and put in new ones. I don't know if there is much we can do but cheer you on "Go TravelRec!". I will even try to make this one when it is finished. Last edited by Doug W; Mar 6, 2009 at 01:31 PM.

Mar 5, 2009, 06:49 PM	#13
Mac Daddy DriverHeaven Extreme Member Join Date: Jul 2002 Location: Ontario, Canada Posts: 7,950 Rep Power: 64 System Specs	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards Following along here as well interesting project TravelRec. I do have the electronics background but don't play much with it much anymore do to time limitations. I do this stuff all day at work lol. Will follow along and pop in if I feel I can offer any suggestions or be of any help. __________________ "My mom said the only reason men are alive is for lawn care and vehicle maintenance." - Tim Allen

Mar 6, 2009, 12:57 AM	#14
TravelRec. Alternative Audioproductions Join Date: Sep 2003 Location: Germany / Sachsen-Anhalt Posts: 1,704 Rep Power: 42	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards OK, guys - I think I can post some details this weekend. Stay tuned __________________ Always take a look behind.

Mar 6, 2009, 07:16 AM	#15
stylus02 DriverHeaven Lover Join Date: Jan 2008 Location: germany, sb0090 Posts: 158 Rep Power: 0	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards i'm interested too in progress & measurement pics. stylus __________________ http://freenet-homepage.de/stylish-s...xas/index.html

Mar 6, 2009, 06:42 PM	#16
TravelRec. Alternative Audioproductions Join Date: Sep 2003 Location: Germany / Sachsen-Anhalt Posts: 1,704 Rep Power: 42	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards Some pictures, schematics and layouts. Attached Thumbnails __________________ Always take a look behind.

Mar 6, 2009, 06:43 PM	#17
TravelRec. Alternative Audioproductions Join Date: Sep 2003 Location: Germany / Sachsen-Anhalt Posts: 1,704 Rep Power: 42	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards And the placement. Attached Thumbnails __________________ Always take a look behind.

Mar 6, 2009, 08:33 PM	#18
Maddogg6 Tail Razer Join Date: Jun 2005 Location: Bernyurass, AZ - USA Posts: 4,027 Rep Power: 36	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards @Travelrec: Perhaps a BOM (Bill of Materials) could be posted.. I have a Q... what type of capacitors are C7/8 17/18 ? Ive never seen such a package before.

Mar 6, 2009, 09:57 PM	#19
Mac Daddy DriverHeaven Extreme Member Join Date: Jul 2002 Location: Ontario, Canada Posts: 7,950 Rep Power: 64 System Specs	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards Now I am really interested and as Maddog said what components __________________ "My mom said the only reason men are alive is for lawn care and vehicle maintenance." - Tim Allen

Mar 7, 2009, 08:29 AM	#21
Mac Daddy DriverHeaven Extreme Member Join Date: Jul 2002 Location: Ontario, Canada Posts: 7,950 Rep Power: 64 System Specs	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards Thanks for the list metalized polystyrene and polyester caps are used quite a bit in audio I still have a bin full of them kicking around here somewhere. __________________ "My mom said the only reason men are alive is for lawn care and vehicle maintenance." - Tim Allen

Mar 8, 2009, 06:25 PM	#23
Mac Daddy DriverHeaven Extreme Member Join Date: Jul 2002 Location: Ontario, Canada Posts: 7,950 Rep Power: 64 System Specs	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards Cool thanks will check it out __________________ "My mom said the only reason men are alive is for lawn care and vehicle maintenance." - Tim Allen

Mar 9, 2009, 09:03 AM	#24
JGSF DriverHeaven Senior Member Join Date: Jul 2004 Posts: 450 Rep Power: 0	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards Cool stuff! __________________ My kX plugins (actually it's only one )

Mar 9, 2009, 08:59 PM	#26
Mac Daddy DriverHeaven Extreme Member Join Date: Jul 2002 Location: Ontario, Canada Posts: 7,950 Rep Power: 64 System Specs	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards Cool on the first test and will check these out as well looking good so far __________________ "My mom said the only reason men are alive is for lawn care and vehicle maintenance." - Tim Allen

Mar 10, 2009, 01:20 PM	#27
TravelRec. Alternative Audioproductions Join Date: Sep 2003 Location: Germany / Sachsen-Anhalt Posts: 1,704 Rep Power: 42	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards So - if we want a final solution, what design you will prefer: a daughterboard that fits on AUD_EXT // AD_EXT and the inputs are accessible on a second pci slot cover sheet or do you rather want a modular system with cables to a front bay? The daughterboard will require the space of one PCI or ISA slot, but is easy to design and finally to mount but the modular design can be more flexible in usage, but the mounting effort is much higher, specially for design cases. Both designs will pass through the AUD_EXT // AD_EXT signals to a second header to have the chaining feature via SPDIF. Say something __________________ Always take a look behind.

Mar 10, 2009, 02:48 PM	#28
JGSF DriverHeaven Senior Member Join Date: Jul 2004 Posts: 450 Rep Power: 0	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards I personally prefer the modular system with cables to the front. Getting free pci slots is getting harder everytime. __________________ My kX plugins (actually it's only one )

Mar 10, 2009, 04:26 PM	#29
TravelRec. Alternative Audioproductions Join Date: Sep 2003 Location: Germany / Sachsen-Anhalt Posts: 1,704 Rep Power: 42	Re: Planned to develop analogue input modules for 10k1 and 10k2 cards So this option means, that you will have an adapter card with necessary headers sitting on the soundcard and some separate A/D modules (maximum of 3) and each module will have an 6-pole ribbon cable that is wired to the header card. One module will act as a clock master - others are slaves. Only digital signals are running through the cables, since the A/D conversion happens directly on the A/D modules with short analogue traces. You will need one 3 1/2" or one 5 1/4" drive slot or a similar place on your computer case to fit the modules on a front plate. What kind/size of input sockets you are preferring? __________________ Always take a look behind. Last edited by TravelRec.; Mar 10, 2009 at 04:36 PM.

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