#CD to WAV
6 messages in this thread
Hi, I've just got myself a CDROM and SB Pro. I am puzzled as to how to
sample real CD audio and get it into WAV format.
Is it possible?
If so how?
TIA
dw
You might try the multi-media forum too.
Dave,
The simplest way to sample the CD is to use the Windows tools provided on
the SBPro disks.
1) Start up windows.
2) Run "MEDIA PLAYER" and select "CD AUDIO" from the Device menu.
3) Run "SOUND RECORDER".
4) Run "SBPRO MIXER" and make sure the ADC input is set to CD.
5) To record a passage, click record in SOUND RECORDER and then PLAY on the
MEDIA PLAYER. Press STOP on the RECORDER when done. You can then use the
edit features in RECORDER to remove any unwanted time from the sample.
6) Simply save the .WAV file and its ready for use in Windows.
Phil Camp, UK.
Hi Phil,
thanks for the instructions – it worked… BUT the sound quality produced is
bl^%$y awful – is this because the SB pro is sampling at 22khz and the CD is
at 44khz? there appeared to be no high frequencies and the whole thing had
some form of low-frequency "motor-boat effect" modulating it.
BTW my SB Pro also picks up computer noise and bungs it on the audio channel
– i.e. as I type this I can hear various noises depending on what I'm doing!.
Do they all do this or is it just my setup?
dw
Dave, the SBPro card does 8 bit samples, vice CD 16 Bit samples. If you work
that out you can see the resolution of the Pro is pretty bad. 2^8=256
discrete values vice 2^16=65536 values. Plus your sample rate can be lower
depending on what you chose as your options.
As far as the noise, you may have a noisy power supply. I would suggest you
move the card as far away as possible from the power supply in the computer.
It can make a considerable difference. I do not get any noise at all through
the speakers, but I have heard of the problem.
-Clarke
Dave,
The SBpro quality will sound pretty poor compared with the raw CD output.
Remember that the SBpro is sampling at a poorer rate AND only in 8 bits (so
bang goes the dynamic range). Check the filter settings on the SBPro mixer
(I turn both filters off).
My SBPro does not exhibit the "Motor Boat" noise, but does pick up a lot of
high frequency clicks and splutters from the digital signals present in the
machine.
Phil Camp, UK.