driven) by the internal LFO, so if you wanted modulation as well as sequencing, the modulation speed would have to be the same as the sequence tempo, which usually sounded horrendous. The previous Pro-One sequencer was clocked (ie. However, the Transpose and Chain functions only require one location per step which means that around 30 minutes of varied tempo music can be stored using the complete memory resources. For example, at the highest clock-speed notes of less than two seconds duration use only two of the 1760 available memory locations. exactly as you play it or one note at a time, and there is a useful Autoglide record facility available in both modes, which effectively gives portamento effects between successive notes.Ī maximum of 880 notes can be stored, of variable length. Programming can be done in both real and step time from the keyboard ie. Battery-backup ensures no loss of programs when the power is turned off, which was always a weak point of the original Pro-One 40 note sequencer. The UC-1 hardware is based upon a 6502 microprocessor giving 1760 memory locations which are dynamically allocated to 10 separate sequences, 10 transpose sequences and 10 chains (sequence groups). There are also four additional jack sockets on the rear panel providing connections for a tape interface and external clock source. This contains eight flush-fitting pushbuttons, a clock tempo knob which controls the sequence speed and a small, four character digital display that indicates the current mode of operation. Once fitted the only visible parts of the UC-1 are a black, rectangular panel located above the keyboard. This operation involves some drilling of both front and rear panels but is quite straightforward. The UC-1 (Universal Controller One) is available in semi-kit form with templates and constructional details on how to fit the unit into your existing Pro-One. From a technical point of view this solution also gives direct access to the synthesizer's keyboard and digital-to-analogue converter (DAC), without the need for scale factor and temperature dependent A/D and D/A conversions involved with an external sequencer." One thing was found to be excellent though and that was the fact that the sequencer was actually part of the synthesizer. Then after a short period of joy they realised its limitations - it is difficult to programme and you have to reprogramme it every time you use it. This project never surfaced in any commercial form and was duly placed to one side, until, that was, the designer came into contact with the SCI Pro-One synthesizer.Īs he recalls, "Being the Sequential Service Manager in Scandinavia, I noticed that the people who bought the Pro-One often did it because of its built-in sequencer. The UC-1 Sequencer is the brainchild of one Per Linné, Service Manager for Sequential Circuits in Sweden, and has its roots in a digital sequencer originally designed by Per for the Maplin 5600S synthesizer.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |