Information Technology Reference
In-Depth Information
Figure 2. A screenshot of the WaveViewer unit from the Audio/Output folder, displaying a waveform
(see Figure 2), which shows the current waveform
with a time-amplitude relationship. This allows
for a much more thorough visual scrutiny of the
audio. Also included in the
Output
section is a
group of audio writing tools (such as
WriteWav
,
WriteAiff
), allowing the user to (re)save the au-
dio after any amount of processing in Triana is
complete.
•
Modulation:
chorus, flanger, phaser and
variable delays.
•
Reverb:
Schroeder verbs, and various
presents from small rooms to large concert
halls.
•
Signal Analysis:
FFT analysis for use in
spectral processing, analysis/resynthesis,
and signal analysis for music information
retrieval
audio processing tools
•
Tools:
faders, resampling modules, wave in-
verters, rectifiers and reversal algorithms.
The audio processing tools form the core of its
audio manipulation capabilities. Inside the audio
processing toolkit is another level of categorized
folders, covering a wide range of applications:
•
UserPresets:
combinational effects (i.e.,
group units) encompassing several of the
above algorithms with particular settings
for example, distorted flangers, exuberant
reverbs, and so forth.
•
Converters:
for converting between audio
formats and for separating stereo streams
into two independent channels and vice
versa.
The categories should be recognizable to
regular users of audio processing or production
software. Each folder contains units which are
in themselves effects but also allow the user to
create their custom algorithms from the smaller
building blocks supplied. It is possible to break
down complex algorithms into a group of functions
(units) that when linked together in a particular
fashion, are able to perform the task as a whole.
This was demonstrated earlier, with the example
of Triana's ability to group the comb and allpass
•
Delay:
single delays, all pass filters and
comb delays.
•
Distortion:
distortion algorithms and fuzz
boxes.
•
Dynamic:
compressors, limiters and ex-
panders.
•
EQ:
low pass, high pass and parametric EQ
(in progress).
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