Technical Information
Models
Exact model numbers forthcoming.
I have a Model 1010 which when released was just an Emax HD.
The Basics
- 5 Octave velocity sensitive keyboard C to C or 3 space rack
- 524k of proprietary memory (not expandable)
- 14 Velocity curves
- Velocity can control VCA level, VCA attack, VCF cutoff, VCF attack, and VCF Q.
- 3.5 inch floppy disk drive (uses double sided, double density (DSDD) floppy disks)
- Internal Miniscribe model 8425S 20 Mb Hard Drive (optional)
- 32 Character Backlit LCD
- RS-422 connection
- MIDI In connection
- MIDI Out/Thru connection
- Programmable Arpeggiator
- 16 track "scratchpad" sequencer
- Clock In (Clock In can accept 24, 48, or 96 ppq, the pulses should be at least 1ms wide and 1 to 5 volts.
- Clock Out (Clock Out sends a 24 ppq which is 5 volts and about 6ms wide)
- 2 Programmable wheels for real-time control over pitch, filter cutoff, AHDSR attack rate, level, LFO modulation index, etc.
- 2 Footswitches
- 1 Footpedal
Audio Out and In
- Right / Mono Output
- Left / Stereo (headphone) Output
- 8 Individual mono outputs (individually assignable)
- Sample In (mono)
Sample Rates and Times
| Sample Rates | Time |
| 10kHz | 52.0 secs. |
| 16kHz | 33.5 secs. |
| 20kHz | 26.0 secs. |
| 28kHz | 18.8 secs. |
| 31kHz | 16.6 secs. |
| 42kHz | 12.4 secs. |
Voice Architecture
Each of the 8 voices has it's own set of the following analog processors:
- Lowpass voltage-controlled filter (VCF) with AHDSR envelope generators
- Voltage-controlled amplifier (VCA) with AHDSR envelope generators
- 8 LFO's with adjustable rate, delay, and speed variation
The Emax CAN chorus its voices without loss of polyphony.
Digital Processing
- Truncation
- Looping (Crossfade and Equal Power)
- Digital combine
- Sample reversal, as well as rate and pitch conversion
- Transform Multiplication tm
- Splicing
- Advanced Split and Layer
- Velocity controlled crossfading between samples
- Individual tuning and attenuation for each sample
Synthesis
Transform Multiplication
Transform Multiplication is a digital effect which merges together 2 sounds in such a way that frequencies common to both sounds are accentuated while uncommon frequencies are discarded. It works best on harmonically rich sounds.
Spectrum Synthesis
Spectrum Synthesis (SE) allows you to specify up to 24 complex waveforms, (called Spectrums) and to either step or fade through them during the course of a sound. The 24 waveform locations are called Time Slices, since they represent the waveform at that slice of the sound. This method allows more complex and interesting sounds to be created. In addition, each partial (sine wave) can have a 24 point envelope that determines the pitch of that partial over the course of the sound.
Each Emax SE voice can consist of two synthesized timbres, a synthesized timbre and a sampled sound, or two sampled sounds. The resulting voice can then be processed using the Dynamic Processing features and placed anywhere in the stereo field.
comments, questions, suggestions? E-mail me:
John Silveria II
Portions of text taken from the Emax SE HD Owners Manual © 1986 E-mu Systems Inc.