Sonic Charge Bitspeek - Manual (Page 5)

MIDI
Enable MIDI to control the pitch and envelope of the effect via MIDI. You will need a
host that is capable of transmitting MIDI to effect plug-ins in order to use this fea-
ture. Please read the documentation for your host for information on how to set it
up. When enabled,
Bitspeek will play only when it receives MIDI and it will transpose
the pitch according to the MIDI notes it receives. Turn down the Tracking parameter
to zero to achieve a vocoder / auto-tune like sound. If you set the Frame Rate to
zero
(with Sync disabled) , Bitspeek will "freeze" the formants on MIDI note on, allow-
ing you to create interesting "stroboscopic" audio effects. Finally, Bitspeek supports
Pitch Wheel messages (one octave up and down) and the MIDI Sustain Pedal can
also be used to "freeze" frames while playing.
Pitch
You can transpose the outgoing audio by -36 to +36 semitones (-3 to +3 octaves) .
Hold down the shift-key while turning the knob to make finer adjustments down to a
single cent in precision.
Tracking
Determines the amount by which the source signal pitch affects the synthesized
audio, from 0% to 200%. At 100%, the processed audio will follow the pitch intona-
tion of the original audio as exactly as possible.
(Sometimes though, the tracking
detects the wrong octave, especially on source material with extremely low pitch.) At
0%, the pitch will stay fixed and produce a robotic vocoder-like quality.
Detune
There is a second oscillator which can be used to achieve a fat detuned sound or
for chord-like effects. The second oscillator is transposed from the first by +0 to
+1200 cents, representing a range of up to one octave.
Noise
This parameter adjusts the balance of "voiced" vs "voiceless" sound. At the default
setting +/- 0%,
Bitspeek attempts to follow the balance of the source signal, so that
"voiced" sounds (like vowels) produce distinct tones while "voiceless" sounds (such
as consonants) produce noise. By turning Noise all the way down to -100%, all
noise will be removed from the output audio. By turning Noise up to +100%, the
output audio will consist only of filtered noise
(sounding like a loud whisper) .
Using Bitspeek in your Host
The DSP algorithm in Bitspeek is monophonic but experience has proved that com-
patibility with monophonic plug-ins is lacking in many major host applications.
Therefore we decided to wire the plug-in for stereo input and output, although it will
simply mix the two input channels and the output audio will be the same for both
channels.
Due to the nature of the algorithms a constant audio latency of 13 ms is added.
Most modern hosts compensate for this latency during playback.
Playing the pitch of Bitspeek with MIDI notes is great fun, and most hosts support
routing of MIDI effects. Here are a few quick instructions on how to set things up in
some popular hosts.
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