User interface front – Sonic Charge Bitspeek RE User Manual

Page 4

User Interface Front

RATE (kHz)

Bitspeek

performs its calculations at a designated fixed sample-rate, regardless of

the sample-rate your project is running at. The possible settings are 8 kHz, 11 kHz,
22 kHz and 44 -> 48 kHz

(the last mode will actually adjust to the project sample-

rate and select a rate between 44 and 48 kHz)

. Notice that

Bitspeek

is still compati-

ble with any sample-rate by performing automatic sample-rate conversion.

RATE

affects several other internal parameters in the DSP algorithms and changing

it alters the sound dramatically.

(Notice that the 44 kHz mode will require more CPU

compared to the other modes. In many cases, the 22 kHz mode works just as well.)

FRAME RATE

The audio signal is analyzed and processed in blocks called "frames". For each
frame,

Bitspeek

estimates the pitch, volume, stereo image and formants of the in-

coming audio, as well as the balance between "voiced" audio

(e.g vowels)

and

"voiceless" audio

(e.g., the noise in a consonant)

By lowering the frame rate, the analysis will be performed more rarely and you will
achieve a cheaper toy-like sound. You can also "freeze" the audio by dragging

FRAME RATE

all the way down to 0. The parameter range is 0 to 80 Hz

(if SYNC is

off)

and higher rates requires more CPU than lower rates.

SYNC

Enable

SYNC

to make

Bitspeek

"freeze" frames in sync with the tempo of your

mu-

sic

. When

SYNC

is enabled, you may select various time synchronized rates

(1/8, 1/

16 etc)

with the

FRAME RATE

slider instead of selecting a rate in Hz.

KBD MODE

Enable this mode to control the pitch and envelope of the effect with your MIDI key-
board. When enabled,

Bitspeek

will play only when it receives notes and it will

transpose the pitch according to the notes it receives.

Start by creating a sequencer track for

Bitspeek

(e.g., right-click the device and

choose "Create Track for Bitspeek")

. 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 note on, allowing you to create interesting "stroboscopic" audio ef-
fects. Finally,

Bitspeek

supports Pitch Bend

(one octave up and down)

and the Sus-

tain Pedal can also be used to "freeze" frames while playing.