Recording multiple audio input in realtime? - DiscussWorldIssues - Socio-Economic Religion and Political Uncensored Debate

**KlaraNovikoffa** · 08-11-2007, 11:42 AM

Basically I need to record about 6 channels of audio simutaneously to a computer harddrive (automatically, with no user interaction once the system is set-up). Can this be done?

I know most sound card/onboard sound support port remapping. So effectively I have 6+ audio-in ports on a single motherboard, is there a way to get the software to record those 6 streams separately, independently?

If I am still not making myself clear, think of it as an audio surveillance system.

OS is not an issue, Linux/Windows are both possible.

I tried using multiple instances of Audacity, but couldn't get it to record from different source. [no]

**blogforlovxr** · 08-11-2007, 11:57 AM

I only use DAWs like Pro Tools, Sound Track Pro, and Logic for multitrack editing and recording, which are all pretty pricey but I found this after a quick search.

http://www.download3k.com/MP3-Audio-...-Recorder.html

Since I use rack mounted hardware IOs (rather than sound cards) I am out of the loop in regards to port remapping of the ports on sound cards so I wish I could help you there. I assume you can control the busses and IOs on your sound card with software that came with it?

What are your sources going to be exactly? Are they going to require a mic level or line level input on the card? (Line level for a source like an MP3/CD player another computer, mic level for mics.) Also make sure that whatever sensitivity you need, whether it be line level or mic level each individual port will support it.

**KlaraNovikoffa** · 08-11-2007, 12:13 PM

I assume you can control the busses and IOs on your sound card with software that came with it? Yes. The right now I am testing with a Gigabyte S3 (identical to DS3), using the realtek software. However, it seems Windows only exposes 1 mixed-down input to recording applications, and i am not sure if there is a way to by-pass that and connect the recording software directly to the independent audio pin. Right now, this is what I see with the software you provided:

Basically I am seeing the same thing across all the non-pro audio application I tried (audacity, windows recorder, another command line based recorder) - Just one source named 'Realtek HD input'. (the digital input is for SPDIF, which I have no use for)

What are your sources going to be exactly? I am not quite sure if I understand that, but my guess is that the source will be similar to those from a music player.

I must admit, audio was never one of my strong points. Any tips would be appreciated.

**YmolafBp** · 08-11-2007, 02:34 PM

My MOTU 828MK2 firewire sound card can do this. It has 8 analog balanced inputs plus 2 mic inputs on the front and can record all simultaniously. I am using Cubase SX to record with.

I dont think you will be able to do it with a built in sound board or even a sound blaster. You will need something more dedicated.

**blogforlovxr** · 08-12-2007, 01:01 AM

I dont think you will be able to do it with a built in sound board or even a sound blaster. You will need something more dedicated.

To be honest, that is what I am thinking as well.

**KlaraNovikoffa** · 08-12-2007, 01:07 AM

ah ok. But I wonder if it is possible to hook up multiple USB sound card to a pc?

**blogforlovxr** · 08-12-2007, 01:12 AM

ah ok. But I wonder if it is possible to hook up multiple USB sound card to a pc?

Maybe. Although, I think that your operating system would be the limiting factor. Essentially you can only select one recording device at a time.

**bensabath** · 08-12-2007, 01:44 AM

Maybe. Although, I think that your operating system would be the limiting factor. Essentially you can only select one recording device at a time.

Nah, go into Cubase and I think you could select more than one recording device. As far as I know the OS just offers you one default recording device.

**blogforlovxr** · 08-12-2007, 01:51 AM

Nah, go into Cubase and I think you could select more than one recording device. As far as I know the OS just offers you one default recording device.

Is there a demo for Cubase? Because I don't think the OP has it and it might be worth a shot.

I have never used Cubase myself so I have no idea if it will work or not.

**YmolafBp** · 08-12-2007, 06:52 AM

ah ok. But I wonder if it is possible to hook up multiple USB sound card to a pc?

Dont take the cheap route and try to do this. using multiple sounds cards that arent even made for ASIO compliant software is going to suck. The latency will make it virtually unusable.

Here is a decent solution that shouldnt break the bank completely
http://www.zzounds.com/item--PRSFIREPOD

IF you can afford the mark of the unicorn 828 MK2 I would highly recommend it.

08-11-2007, 11:42 AM	#1
KlaraNovikoffa Join Date Oct 2005 Location USA Posts 430 Senior Member	Recording multiple audio input in realtime? Basically I need to record about 6 channels of audio simutaneously to a computer harddrive (automatically, with no user interaction once the system is set-up). Can this be done? I know most sound card/onboard sound support port remapping. So effectively I have 6+ audio-in ports on a single motherboard, is there a way to get the software to record those 6 streams separately, independently? If I am still not making myself clear, think of it as an audio surveillance system. OS is not an issue, Linux/Windows are both possible. I tried using multiple instances of Audacity, but couldn't get it to record from different source. [no] Share Share this post on Digg Del.icio.us Technorati Twitter
	Quote

08-11-2007, 11:57 AM	#2
blogforlovxr Join Date Oct 2005 Posts 673 Senior Member	I only use DAWs like Pro Tools, Sound Track Pro, and Logic for multitrack editing and recording, which are all pretty pricey but I found this after a quick search. http://www.download3k.com/MP3-Audio-...-Recorder.html Since I use rack mounted hardware IOs (rather than sound cards) I am out of the loop in regards to port remapping of the ports on sound cards so I wish I could help you there. I assume you can control the busses and IOs on your sound card with software that came with it? What are your sources going to be exactly? Are they going to require a mic level or line level input on the card? (Line level for a source like an MP3/CD player another computer, mic level for mics.) Also make sure that whatever sensitivity you need, whether it be line level or mic level each individual port will support it. Share Share this post on Digg Del.icio.us Technorati Twitter
	Quote

08-11-2007, 12:13 PM	#3
KlaraNovikoffa Join Date Oct 2005 Location USA Posts 430 Senior Member	I assume you can control the busses and IOs on your sound card with software that came with it? Yes. The right now I am testing with a Gigabyte S3 (identical to DS3), using the realtek software. However, it seems Windows only exposes 1 mixed-down input to recording applications, and i am not sure if there is a way to by-pass that and connect the recording software directly to the independent audio pin. Right now, this is what I see with the software you provided: Basically I am seeing the same thing across all the non-pro audio application I tried (audacity, windows recorder, another command line based recorder) - Just one source named 'Realtek HD input'. (the digital input is for SPDIF, which I have no use for) What are your sources going to be exactly? I am not quite sure if I understand that, but my guess is that the source will be similar to those from a music player. I must admit, audio was never one of my strong points. Any tips would be appreciated. Share Share this post on Digg Del.icio.us Technorati Twitter
	Quote

08-11-2007, 02:34 PM	#4
YmolafBp Join Date Oct 2005 Posts 425 Senior Member	My MOTU 828MK2 firewire sound card can do this. It has 8 analog balanced inputs plus 2 mic inputs on the front and can record all simultaniously. I am using Cubase SX to record with. I dont think you will be able to do it with a built in sound board or even a sound blaster. You will need something more dedicated. Share Share this post on Digg Del.icio.us Technorati Twitter
	Quote

08-12-2007, 01:01 AM	#5
blogforlovxr Join Date Oct 2005 Posts 673 Senior Member	I dont think you will be able to do it with a built in sound board or even a sound blaster. You will need something more dedicated. To be honest, that is what I am thinking as well. Share Share this post on Digg Del.icio.us Technorati Twitter
	Quote

08-12-2007, 01:07 AM	#6
KlaraNovikoffa Join Date Oct 2005 Location USA Posts 430 Senior Member	ah ok. But I wonder if it is possible to hook up multiple USB sound card to a pc? Share Share this post on Digg Del.icio.us Technorati Twitter
	Quote

08-12-2007, 01:12 AM	#7
blogforlovxr Join Date Oct 2005 Posts 673 Senior Member	ah ok. But I wonder if it is possible to hook up multiple USB sound card to a pc? Maybe. Although, I think that your operating system would be the limiting factor. Essentially you can only select one recording device at a time. Share Share this post on Digg Del.icio.us Technorati Twitter
	Quote

08-12-2007, 01:44 AM	#8
bensabath Join Date Oct 2005 Posts 464 Senior Member	Maybe. Although, I think that your operating system would be the limiting factor. Essentially you can only select one recording device at a time. Nah, go into Cubase and I think you could select more than one recording device. As far as I know the OS just offers you one default recording device. Share Share this post on Digg Del.icio.us Technorati Twitter
	Quote

08-12-2007, 01:51 AM	#9
blogforlovxr Join Date Oct 2005 Posts 673 Senior Member	Nah, go into Cubase and I think you could select more than one recording device. As far as I know the OS just offers you one default recording device. Is there a demo for Cubase? Because I don't think the OP has it and it might be worth a shot. I have never used Cubase myself so I have no idea if it will work or not. Share Share this post on Digg Del.icio.us Technorati Twitter
	Quote

08-12-2007, 06:52 AM	#10
YmolafBp Join Date Oct 2005 Posts 425 Senior Member	ah ok. But I wonder if it is possible to hook up multiple USB sound card to a pc? Dont take the cheap route and try to do this. using multiple sounds cards that arent even made for ASIO compliant software is going to suck. The latency will make it virtually unusable. Here is a decent solution that shouldnt break the bank completely http://www.zzounds.com/item--PRSFIREPOD IF you can afford the mark of the unicorn 828 MK2 I would highly recommend it. Share Share this post on Digg Del.icio.us Technorati Twitter
	Quote

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