Description | The Estradin-230 is a 3 oscillator monophonic analog synthesizer produced in the USSR from the early 1980's until 1985 by Elektroizmeritel military factory in Zhitomir. The Estradin-230 was the forerunner to the Altair-231 which shares the same architecture and functionality. The Estradin factory changed the instrument`s casing and renamed it Altair-231.
The instruments offers a 49 key keyboard with velocity sensitivity. The structure of the synthesizer is 3 oscillators with oscillator 3 as a modulator, a white and pink noise generator and external audio input as additional sources. It features a 24db/oct lowpass voltage controlled filter and voltage controlled amplifier. 3 LFO generators, glide and a pitch wheel. The Estradin-230 was the Russian answer to the Minimoog. |
| Brand | Estradin |
| Model | Estradin 320 |
| Device | Synth |
| Type | Keys |
| Engine Type | Analog |
| Engine | VCO |
| Voices (max) | 1 |
| Oscillators | 3 |
| LFO | 3 Noise, Saw Down, Sine, Square, Triangle |
| Noise | Y |
| Engine Detailed | 3 VCO, Pink Noise, Pulse, Saw Up, Sine, Square, Triangle, White Noise |
| Filter (VCF) | 1 24dB Slope (4-pole), Low Pass, Resonance |
| Envelope (VCA) | 2 ADS |
| Keys | 44 |
| Key type | Keys |
| Velocity | Y |
| Aftertouch | N |
| Audio | Mono I-O |
|
Produced: | 1981 - 1983 |
| Legend: |
Obvious |
Y: Yes, N: No, N/A: Not Applicable |
| VCO |
Voltage Controlled Oscillator |
DCO |
Digital Controlled Oscillator |
| LFO |
Low Frequency Oscillator |
Sub |
Sub Oscillator |
| VCF |
Voltage Controlled Filter |
VCA |
Voltage Controlled Amplifier |
| Velocity |
As with a piano, the harder you hit a key, the louder the sound, unlike most organs which always produce the same loudness no matter how hard you hit a key. |
Aftertouch |
Pressing a key after you activated it. Channel Aftertouch, no matter which key, it will send a Channel message. Poly Aftertouch, sends the pressure per key instead of the whole channel. |
| Values for OSC, LFO, Filter, Envelope are per voice unless stated otherwise. |
