Subject:Analog Mix Not Supported???

Posted by: keithos27

Date:4/12/2005 7:55:34 PM

Hi everyone. I am very new to SF, so please excuse me if I have a stupid question...

I just got SF8 and am trying to record my vinyls to .WAV files... I installed all the updated sound card files from creative's web site (I have a Sound Blaster Audigy 2) and have all the updates from Windows Update. I installed SF8/CD Architect 5.2/Sony Noise Reduction from the CDs. I then went into SF8 and changed the Audio Device Type to SB Audigy 2 ASIO [9800]. I also changed the path where it saves files to my D:\ drive as that much larger (like 200GB).

Now when I hit the record button and hit check "monitor" I am getting an error message saying "Analog Mix L/Analog Mix R does not support 44,100 Hz at 16 bits." I try changing the 44.1 setting, the 16 Bit setting, etc. Each time same error message (just with the different numbers/settings).

Also, the default playback device is Wave and default recording device is Analog Mix L/Analog Mix R.

What am I missing here??? Please help the new guy!

Cheers,
Keith

Subject:RE: Analog Mix Not Supported???

Reply by: pwppch

Date:4/12/2005 8:22:35 PM

The Audigy hardware only does 48 kHz @ 16 bit. Since ASIO drivers are limited by their hardware, you cannot use the Audigy ASIO drivers to record at 44.1 kHz.

What Creative did was provide WDM drivers. This allows Windows to resample the actual 48 kHz audio that the Audigy produces.

So, to record at 44 kHz with the Audigy, you cannot use the ASIO drivers. You must use the Wave Classic Driver type in Forge

Peter

Subject:RE: Analog Mix Not Supported???

Reply by: keithos27

Date:4/12/2005 8:43:52 PM

Peter,

Thanks for the explination! I changed that... and now when I check "monitor" the levels slowly increase on their own (without my turntables or mixer even on) and slowly creep up to the red and I get this horrible noise out of my computer speakers.

Any ideas?

Cheers,
Keith

Subject:RE: Analog Mix Not Supported???

Reply by: Rednroll

Date:4/13/2005 1:19:00 AM

You have a feedback loop. Click on the speaker icon in the bottom right corner of windows. This should bring up the wave mixer section. Select Properties>Recording, show all the recording selection, and make sure you disable "Mix" or "Record what you hear". If that doesn't work, then goto into Sound Forge, and goto OPTIONS>PREFERENCES> AUDIO TAB. Disable "Monitor audio input while recording."

Subject:RE: Analog Mix Not Supported???

Reply by: keithos27

Date:4/13/2005 5:21:20 AM

Rednroll,

Okay thanks. So I don't want mix checked? The only mix I see is "Analog Mix (Line/CD/Aux.TAD/PC)". Isn't line the one I want to record? I have the cable going from my mixer to Line In on the Audigy 2. Can I disable the following...

- MIDI Synth
- "What U Hear"
- S/PDIF-In
- CD Digital
- Analog Mix (Line/CD/Aux.TAD/PC)" (Leave this one checked, right?)
- Microphone
- Wave

Thanks,
Keith

Subject:RE: Analog Mix Not Supported???

Reply by: keithos27

Date:4/13/2005 5:32:55 AM

Also.... I'm still getting the loop when I only have either Analog Mix or Wave checked in the recording properties... :( If I uncheck the monitor audio while recording in the preferences then it goes okay... what exactly does that do unchecking that box? Is this a bad thing disabling that? Will this affect the quality of my recordings???

Thanks.

-Keith

Subject:RE: Analog Mix Not Supported???

Reply by: drbam

Date:4/13/2005 6:57:30 AM

>> what exactly does that do unchecking that box? Is this a bad thing disabling that? Will this affect the quality of my recordings???<<

As Red noted, it will get rid of the feedback loop, obviously not a "bad" thing. In your case it appears that monitoring is causing the feedback loop. It sounds to me like its time for you to start experimenting with some actual recording and determine for yourself what results you're getting. Document your settings while you're experimenting (take notes) so you can clearly see what gives you positive and negative results. As every system is different, this is the ONLY way to learn this stuff and to determine how things are going to work on your system.

drbam

Subject:RE: Analog Mix Not Supported???

Reply by: keithos27

Date:4/13/2005 7:15:26 AM

drbam,

I see what you are saying, but how will I document these sorts of things... What am I to look out for? I am a complete rookie when it comes to audio... how do I tell if something is recording properly? Isn't the objective, when recording from vinyl, to get the sound quality to be as close to 0 without going in the red (to get the broadest range of sounds)?

Cheers,
Keith

Subject:RE: Analog Mix Not Supported???

Reply by: pwppch

Date:4/13/2005 9:43:04 AM

What dbram suggests is that you experiment so you understand what
each setting in Forge and you audio card does. This is solid advice and
a good way to really understand how things work. The practical experience
you gain by doing is a great benefit.

You should:

- Read the manual/help for your sound card.

If you don't have a manual for your sound card, you should be able to get
one from the vendor or by searching on the web.

- Read the Forge manual and/or help file

You can download the pdf of the Forge manual here if you don't have it.

- Understand what a feedback loop is.

What you are experiencing is like holding a mirror up to a mirror. An
"infinite" reflection. When you do this with an audio signal, you get what
is known as feedback.

I appears that your sound card is configured to record what ever it is
outputting. This causes a feedback loop. When you disable input monitoring
in Forge you prevent Forge from echoing the input directly out to the audio
hardware. This prevents one type of feedback loop. Depending on how you configure your audio card and its drivers, there are other ways to avoid the feedback.

Peter