4 Jul
2003
4 Jul
'03
12:55 a.m.
Hi Larry,
On Thu, Jul 03, 2003 at 10:03:20PM -0400, Larry Troxler wrote:
Just my two cents, you can rip a CD in either analog or digital form.
Analog will incur some lossiness since the path is
CD-DA -> DAC -> ADC -> WAV
The ADC (analog to digital conversion) is a lossy operation.
Ripping directly from the CD is preferable since there is no ADC
involved. But it is not necessary to get acceptable sound quality.
Programs like cdparanoia and EAC operate as digital rippers, using the
cdrom's built in mechanisms to extract the audio data directly. There
are other programs however (such as cdsound-recorder) that will play the
disc through your CD drive's built in DAC, and record the sound through
your soundcards ADC input. Or, you can use a standalone CD player for
the same effect.
--
Ryan Underwood, <nemesis at icequake.net>, icq=10317253
> On Wed,
2003-07-02 at 17:06, Jan Depner wrote:
> > Just had to put my 2 cents in here. So, I go and buy the CD - it
> > won't rip or play on my computer - I slap it in my decent CD player
> > (with analog outs to my DSP2000) - I record it at 16/44.1 - I encode it
> > in ogg - I post that on the web somewhere. Now, question for the
> > student, how much worse is my ogg copy than a ripped and encoded ogg
> > copy? If you're willing to settle for mp3 then this is just as
> > acceptable and it can't be stopped. From what I gather from most of my
> > reading up on sound cards, most of them go from digital to analog and
> > then back when you rip anyway. Is the connection from your cd player
> > to your sound card digital? It is on my system but I don't think it is
> > on most of the cheaper ones.
Hi, I'm sorry that I don't have Jan's original message still handy to reply
to, but reading this leaves me very confused about how the ripping process
works.
For example, from the Cdparanio doc:
"Cdparanoia is a Compact Disc Digital Audio (CDDA) extraction tool, commonly
known on the net as a 'ripper'. The application is built on top of the
Paranoia library, which is doing the real work (the Paranoia source is
included in the cdparanoia source distribution). Like the original cdda2wav,
cdparanoia package reads audio from the CDROM directly as data, with no
analog step between, and writes the data to a file or pipe in WAV, AIFC or
raw 16 bit linear PCM."
So clearly this is strictly digital process. What you're describing sounds
more like simply playing a CD in audio mode in your CD rom drive and
recording via the analog connection to the sound card.
Either I'm in the twilight zone (cursing myself that I don't get the sci-fi
channel for the tz marathon this weekend) or there's two different meanings
to the phrase "rip a cd".