🚀 go-pugleaf

Scott R. Hall (shall@obiwan.nosc.mil) wrote:
> Curious..... How can I use my sound blaster pro board to record music from  
> a boom box? I would like to be able to record samples of music from the  
> radio, and the CD and tape player. Is a MIDI cable neccesary? I am working  
> with no documentation or books at the time, but am knowledgeable enough to  
> get something going if pointed in the right direction. Thanks in advance.

   All you have to do is simply take a cable going out from the headphone jack 
on the boombox, to in the "IN" jack on the SBPro.


-- 
Jonathan Heiliger .... Electric Power Research Institute
Internet: jonathan@mecca.epri.com -/- jonathan@rahul.net
Telephone <*> [415].855.2888

In article <1993Jan4.221827.16732@nosc.mil> shall@obiwan.nosc.mil (Scott R. Hall) writes:
>Curious..... How can I use my sound blaster pro board to record music from  
>a boom box? I would like to be able to record samples of music from the  
>radio, and the CD and tape player. Is a MIDI cable neccesary? I am working  
>with no documentation or books at the time, but am knowledgeable enough to  
>get something going if pointed in the right direction. Thanks in advance.
>
>Scott
>shall@nosc.mil
>
>


The SBPro has 3 jacks on the back of the card:  Line, Mic, and Out, in order
from the top of the card (where you fasten the bracket to the chassis).  Simply
connect the line out of your CD player to this jack.  Then use SBP-MIX (or the
Windows mixer) and adjust the volume of the line input until it's suitable.
Then use VREC to record your sound.  You won't get CD quality because

a) The SBPro only can record 8 bits of data, and CDs use 14 or 16 (can't 
remember, but 14 seems right)
b) The SBPro can only record stereo at 22.05kH, while CD audio is recorded at
44.1kHz.

-George Woyansky
 ECE Dept., Carnegie Mellon University
 Pittsburgh, PA  15213

In article <1993Jan4.221827.16732@nosc.mil> shall@obiwan.nosc.mil (Scott R. Hall) writes:
>Curious..... How can I use my sound blaster pro board to record music from  
>a boom box? I would like to be able to record samples of music from the  
>radio, and the CD and tape player. Is a MIDI cable neccesary? I am working  
>with no documentation or books at the time, but am knowledgeable enough to  
>get something going if pointed in the right direction. Thanks in advance.

A MIDI cable would be of absolutely no use to you, you need a standard plug
that will convert whatever output you have from the boom box to a standard
input on the SB Pro...For example:

An audio cable that will convert two RCA plugs into a stereo-mini (3.5mm)
plug, or if you have headphone jacks only, a stereo-mini to stereo-mini
cable...

The only other problem would be the impedance...On the SB and SB Pro, the 
input impedance on the mic connector is 4 ohms, normal RCA outputs are 8,
and headphones are anywhere from 2-8 ohms...You MUST match impedances 
BEFORE you sample anything!!!  Otherwise the samples will have EXTREMELY
poor quality, and your equipment could be damaged...A simple circuit can
be built for an extrememly low price to handle this, I'll let some of the
other techies handle this one...:-)

Later...

-- 
 ___       Sean Peoples <seanp@sdf.lonestar.org>, FidoNet : 1:124/7026 
(__  ___   The .\ssylum BBS: 214-291-8771 Cedar Hill, Tx USA!!!
___) |__) 
     |     WANTED: UUCICO.EXE file from Waffle BBS package for MS-DOS w/ Docs. 

In article <C0CzME.D4@fs7.ece.cmu.edu> woyansky@flamingo.ece.cmu.edu (George J. Woyansky) writes:
>
>a) The SBPro only can record 8 bits of data, and CDs use 14 or 16 (can't 
>remember, but 14 seems right)
>b) The SBPro can only record stereo at 22.05kH, while CD audio is recorded at
>44.1kHz.

Not neccesarily true...If he has the SB Pro 2.0, it can record 8-bit stereo at
44.1KHz...If he has the SB Pro 16, he can do 16-bit stereo at 44.1KHz...

BTW, CD's use 12-bit digital sound, and 4-bit error-correction...

Later...

-- 
 ___       Sean Peoples <seanp@sdf.lonestar.org>, FidoNet : 1:124/7026 
(__  ___   The .\ssylum BBS: 214-291-8771 Cedar Hill, Tx USA!!!
___) |__) 
     |     WANTED: UUCICO.EXE file from Waffle BBS package for MS-DOS w/ Docs. 

In article <C0IAKK.8LH@sdf.lonestar.org> seanp@sdf.lonestar.org (Sean Peoples) writes:

>The only other problem would be the impedance...On the SB and SB Pro, the 
>input impedance on the mic connector is 4 ohms, normal RCA outputs are 8,
>and headphones are anywhere from 2-8 ohms...You MUST match impedances 

MIC input impedance of 4 ohms. Seems a bit low, though I don't have the
spec sheet for SB Pro. MICs are typically somewhere between 600 and
10,000 ohms.

Robert

//////////////////////////////////////////////////////////////////////////
Robert Fries
Ungermann-Bass Inc.

DISCLAIMER:
    Opinions contained herein are my own, and are not necessarily those
    of Ungermann-Bass.
//////////////////////////////////////////////////////////////////////////

In article <C0IAqD.8ot@sdf.lonestar.org> seanp@sdf.lonestar.org (Sean Peoples) writes:

>BTW, CD's use 12-bit digital sound, and 4-bit error-correction...
>
>Later...
>
>-- 
> ___       Sean Peoples <seanp@sdf.lonestar.org>, FidoNet : 1:124/7026 
>(__  ___   The .\ssylum BBS: 214-291-8771 Cedar Hill, Tx USA!!!
>___) |__) 
>     |     WANTED: UUCICO.EXE file from Waffle BBS package for MS-DOS w/ Docs. 

Wrong. CD's store 16 bit sound, for each channel (left and right). Don't know how many
bits for error correcting. 
-- 
Gord Wait 	SMOS Systems Vancouver Design Centre
uunet!jericho!gord
gord%jericho@uunet.uu.net