| Arny Krueger 2007-07-17, 7:55 am |
| "Radium" <glucegen1@gmail.com> wrote in message
news:1184652834.610528.86840@e9g2000prf.googlegroups.com
> Adobe Audition 1.5 allows WMA monaural audio at 44.1 KHz
> sample-rate with a bit-rate of 20 kbps. How does it do
> this? How can the bit-rate be less than the sample-rate?
Because they are two different things.
WMA files are often compressed using lossy compression. Lossy compression is
used to vastly decrease the amount of data in the audio file.
> In a monaural WMA file that is 44.1 KHz sample rate, what
> is the minimum bit-rate that is mathematically-required?
With lossy compression, there is no strict mathematical relationship.
> Can it be compressed to 1-bit-per-second while still
> retaining the 44.1 KHz sample-rate? If so, then how? If
> not, then why?
> What version of WMA does Adobe Audition 1.5 use?
Why not ask Adobe. www.adobeforums.com
> Also, why do WMA artifacts sound different from MP3
> artifacts?
Because they are two different means for doing lossy compression.
> What is the mechanism behind WMA compression
> that gives WMA its characteristic artifacts?
WMA is a proprietary compression technique, and not a great deal is known
about its internal processing. There are people who might be able to help
you at http://www.hydrogenaudio.com/
|