OT: Cameron, you are confused. You are confusing sample rate with data rate with audio frequency. CD Burners burn normal audio CD's with the exact same data/audio quality as mass-produced audio CD's. And mine burns at twice the speed (2x) as the data rate of a normal CD player. Newer units burn at 4x. And Yamaha now has one that burns CD-R's at 8x.
>>Well, Rocky, if you're going to sample audio, you need to sample at at least twice the audio frequency<<
Wrong.
You can sample at ANY rate. But the lower the sample rate, the greater the distortion. The sample rate is merely how many "slices" per second the digital convertor samples the sound wave. Audio CD's are played at a "1x speed." Not 10x. The standard mass-produced Sony Record's Titanic Soundtrack audio CD plays at a standard 1x data rate of only 125KB/sec. And this is for both left and right channels. This is good enough for a normal 1x speed, stereo, 44.1k, 16 bit Audio CD that has an audio frequency response of 20-20k Hz.
Let's lay out the math: 1x CD speed = 125KB/sec
The upcoming DVD-Audio standard features 96k sample rate and 24 bit sound-- with 6 channels of sound (front left, center, right: rear left, right; and a subwoofer-- in addition to the now standard 2 channel left, right stereo mix) It should sound like balls. I believe the upcoming Aerosmith Live album is one of the first DVD-Audio discs due for release.
It isn't possible to edit off of a CD Burner or DVD-RAM anyway. The read/write access times are too slow. Same thing with Zip*. I use dedicated hard drives only- and normally only SCSI ones. However, my Roland VS-1680 audio workstation features a built-in IDE 2 Gig IBM heavy duty laptop drive. I would never think to try and edit off of a Jaz or even an Orb. I value my audio too much to trust them to removable drives.
*The Roland VS-840 audio recorder does feature a built-in Zip drive to record and edit off of (no hard drive at all- not even with its SCSI port. The SCSI port is crippled for backup only), but is able to use it only because the 840 uses a lossy data compression scheme, along with other VERY clever software algorithms to account for the Zip drive's limitations. The VS-840 is a very limited device, marketed to entry level musicians interested in sketching out musical ideas. It is far from being considered professional, and light years behind my pride and joy, the VS-1680. |
