An Expansion module, ADDAC111B, was also created to allow users to recall the first 8 files through dedicated trigger signals. This allows sequencing of files.

Features
Main Volume
Loop Size
File Position
Sample Rate
VCA
Envelope Follower
File Access (Manual / Gate file skip, play next, play previous, play random)


Four variable settings, Loop Size, Initial Position, Sample Rate and VCA controlled either manually through the corresponding front panel knob or externally from a CV input.
Two sound outputs: one pre-VCA (with a pre-volume knob) and one post-VCA (located in the VCA section).
An Envelope Follower CV output.
Loop Size - dynamically control the size of the loop, by trimming down the total duration to a smaller size.

Initial Position - dynamically control the initial point of the loop, also allowing scrolling through the file duration.

Sample Rate - dynamically change the sample rate resolution, altering the pitch of the playback.
Voltage Controlled Amplifier - analogue VCA to dynamically control the overall volume of the sound output.
Envelope Follower - a CV output that changes according to the playback amplitude (post-VCA), with controls for level and decay. It also features a led monitor for easy visualization.

Led monitors - visualize current state of Size, Position and Rate controls.
Skip / Loop switch - set the Gate/Digital input to either a file access mode or re-trigger mode.
Playback modes - set playback modes between Loop / One Shot | Forward / Random.

NOTE: SD cards have to be formatted in FAT16 and there's a special convention for filenames. For more information please consult the Addac101 user guide.