By Mark
Steven Miller

August 14, 1998
Vol. 2: Issue 32
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While BarbaBatch supports a wider range of sample
rates, both applications cover most of the important ones. To complement
its sample rate conversion capabilities, WaveConvert Pro also offers eleven
brightness settings: four for Real Audio, four for Shockwave audio, a "hard"
setting for more intelligible speech, a "soft" setting for music, and the
new speech De-esser. (De-essers do just that -- they remove extra "esses"
from speech). The "hard" and "soft" brightness settings work very well, adding
back high end and presence into files converted to lower sample rates, while
not making the files too harsh or brittle.
The RealAudio and Shockwave audio settings produce much better results than
if you do a straight conversion using the tools supplied with either of those
codecs, and also surpass the quality of BarbaBatch's RealAudio output files.
While WaveConvert Pro can't save out these file formats, both Real Networks
and Macromedia supply their own simple batch-processing tools for this purpose.
Both programs can generate files in the most common audio compression format,
4-bit ADPCM (Adaptive Pulse Code Modulation). WaveConvert Pro outputs both
Microsoft and International Multimedia Association (IMA) ADPCM. Though BarbaBatch
inputs and outputs only the Microsoft flavor of ADPCM, it also supports AIFC
files (the Macromedia Director format).
In addition to standard ADPCM encoders, WaveConvert Pro offers its own ADPCM
compressors for both Microsoft and IMA compression. Both compressors offer
definite improvements over the standard versions when played back within
WaveConvert Pro, but results can vary when the files are played back using
other implementations of ADPCM decompression. The Waves NoLoss encoder utilizes
Waves' own lossless compression format specifically designed for audio files.
NoLoss is useful for archiving or transferring files, but I didn't review
it specifically.
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