SoundBlaster 1.5 recording

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2 total messages Started by Andreas Furrer Tue, 13 Oct 1992 11:09

#835

Author: Andreas Furrer
Date: Tue, 13 Oct 1992 11:09

21 lines
1009 bytes

I have got a Sound Blaster 1.5 and I want to record some
songs from a CD player.
The problem is that the SB 1.5 has only an input for
a microphone. If you use tthis input with the line out
of a CD player (or something else) the quality is not good.

The specs of the SB 1.5 input are:

10mV - 100mV, 600 Ohm

and of a normal line out:

-350mV, 30000 Ohm

Now, does anybody know some little electronic circuit diagramm
to convert the line out signal to the microphone specs?
I think, I have seen one in a german journal but I don't
know where.

Andreas Furrer
s_furrer@ira.uka.de

Re: SoundBlaster 1.5 recording

#866

Author: Galen Raben
Date: Thu, 15 Oct 1992 16:37

29 lines
1748 bytes

In comp.multimedia, s_furrer@irau28.ira.uka.de (Andreas Furrer) writes:

>I have got a Sound Blaster 1.5 and I want to record some
>songs from a CD player.
>The problem is that the SB 1.5 has only an input for
>a microphone. If you use tthis input with the line out
>of a CD player (or something else) the quality is not good.

{... stuff deleted}
>Now, does anybody know some little electronic circuit diagramm
>to convert the line out signal to the microphone specs?

I use an inexpensive audio mixer panel with good results.  You should be
able to find one at a audio/video store or mailorder.  Mine is an
Ambico audio/video mixer that I also use for mixing audio to my video deck.
The only problem I have had is that computer environments are electrically
pretty noisy, the standard audio cabling would introduce lots of static when
recording with the soundblaster.  I fixed this by making cables from some
75ohm TV coax cable.  End of problem!

Don't expect CD quality sound out of the soundblaster (since it's dynamic
range is limited by being 8 bit and by the sampling rate), however the 
results are still fair to good...  Some of the newer cards (such as the
SoundBlaster16 and the PAS16) should have better dynamic range if your
quality is critical...

Good Luck!
- Galen -
galenr@hpgrla.gr.hp.com

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