Format: Eurorack
Width: 18HP
Depth: 30mm
Current: --mA@+12V, --mA@-12V
The Buchla & Tiptop Audio 264t is a utility featuring four independent sample and hold circuits and dedicated logic circuitry for the rapid implementation of polyphonic patches.
A sample and hold is essentially a one-cell analog memory. It is useful for "remembering" the instantaneous value of a control voltage (such as a detected envelope), for generating equispaced steps from a constant slope input (such as from a 1t envelope generator), or for converting an arbitrary, continuously varying voltage (such as a random voltage) into a sequence of discrete values.
The H.264 sample and hold circuit has two operating modes: sample mode and track mode. In sample mode, the value of the input is sampled and applied to the output every time a pulse is received. The output holds that value until the next pulse arrives. In track mode, the input signal is applied to the output for the duration of the pulse, tracking the input until the pulse ends and then held at a constant value until the next pulse.
To use the 264t as 4 independent channels, set the separate/common switch to "separate". Connect a CV to the right rear jack and set "operate/common" to "common" to send a single CV to all channels.
The Model 264t includes a polyphonic adapter that performs the necessary logic to achieve four-voice polyphony, has built-in facilities for oscillator tweaking and FM modulation, and even features a light emitter to indicate adapter operation.
ART Quantizer
The four voltage-controlled outputs are internally connected to a four-channel quantizer for use with ART-compatible oscillators (such as the 4t Complex Oscillator). A 259-position switch selects the key, and the knob above it selects the scale (minor (m), chromatic (ch), major (M)).
