Sonic Charge Bitspeek - Manual (Page 3)

Introduction
I N T R O D U C T I O N
Bitspeek is a real-time pitch-excited linear prediction codec effect. Right now
you are probably thinking, "oh, another one of those"? Or perhaps not. Chances
are that you have never heard about "linear prediction", although most of us
use it daily when we talk on our cell phones. Linear prediction coding is a voice
compression technology that appeared in commercial products in the
seventies and was implemented in some well-known speaking toys of the early
eighties.
We have applied this technology to create a VST / AU effect plug-in that
analyzes audio, extracts a number of parameters (including pitch, volume and
formant data) and then resynthesizes the audio using a simple oscillator,
noise and filter architecture.
Ever heard the robotic voice in µTonic that reminds you to purchase? That is
an example of what Bitspeek can sound like. But there is more to it. We have
added a number of playback parameters that adjusts the pitch and tonal
quality of the sound as well as support for MIDI and a beat-synchronized
"formant freezing effect". Despite having only a few simple controls, this box
can produce a broad range of sounds from cheap speaking toys to high-end
vocoder and talkbox effects.
/ Magnus Lidström
! © 2011 NuEdge Development! 3