Article addendum: January 4, 2001 - Part 1
| Article Addendum: 'Digital Audio Gets an Audition',
January 4, 2001
This'll be a 'living' document; I'll periodically update it with additional evaluation results on both existing and new codecs, plus additional links that I come across. So occasionally check back, and drop me an email with any feedback. Thanks! January 4, 2001GraphicsBelow you'll find 24-bit color JPEG and BMP graphics corresponding to those found in part 2 of my print article, but spanning all evaluated lossy-compressed MP3, RealAudio G2 and Windows Media Audio 7 bitrates, as well as the original WAV files. Figure 1: Spectrum analyzer (frequency-based) displays of test clip #2
Figure 2: Spectrum analyzer (frequency-based) displays of test clip #6
Figure 3: Spectrum analyzer (frequency-based) displays of test clip #8
Figure 4 (part a): Oscilloscope (time-based) displays of test clip #7
Figure 4 (part b): Oscilloscope (time-based) displays of test clip #8
Figure 5: Oscilloscope (time-based) displays of the first 200 msec of test clip #9
Figure 6: Oscilloscope (time-based) displays of the last 2 sec of test clip #9
Figure 7: Oscilloscope (time-based) displays of the 15th transient in EBU SQAM file #27 (castanets)
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