Alesis Metavox

Modfx Vocoder

" The Metavox is a digital DJ-oriented stereo digital vocoder with internal or external carrier.

METAVOX is part of the MODFX effect boxes series."

Overview and Sound

OVERVIEW plastic case pedal, main panel features 4 knobs and 5 buttons.

Back panel terminal connectors:
- unbalanced stereo jack input
- unbalanced stereo jack output
- pedalswitch input for bypass (not true bypass)
- trimmer level input
- Alesis 9 pins connector digitally chains various effects from series (Modlink chain does not feed the power supply)
- ac Power supply the pedal does not work with battery only with AC-AC 9V external.

SOUND according to Alesis, the internal DSP works at 48 kHz - 24 bits resolution. The metavox is quite easy to use: just plug a microphone to LEFT input, set the pitch using the Phreeq knob and finally choose of the 4 internal waveform available: saw, square, noise and rectified sawtooth which is an optimized internal waveforms which is one octave lower than standard sawtooth and smoothed edges.

Filter, carrier and LFO

CARRIER it is also possible to use a custom carrier and enable polyphonic signal: just plug a synth to the RIGHT INPUT and begin the robotic chat.

FILTER the siblance balancing cuts off frequencies for more / less sibilance on vocoded voice.

LFO the signal can me modulated by 4 functions:

- LFO: single triangle

- random: 2 different modes

- EG: envelope follower

- random pattern-sequence: 16 preset steps (they cannot be altered).
SYNC LFO Internal LFO frequency rate cannot synched to any external clock but the TAP button can help for live performance, in addition there are 4 different RATE frequency dividers: half, quarter, double and 4 X times.

Alesis METAVOX Technical Data

Alesis Metavox Specifications

Audio Input
Input Connectors:2 unbalanced 1/4” jacks
Maximum Input Level:+10 dBV
Nominal Level:-10 dBV (adjustable, left input)-20 dBV (right input)
Input Impedance:470kΩ
Input Converter Resolution:24-bit, 48 kHz sampling

Audio Output
Output Connectors:2 unbalanced 1/4” jacks
Maximum Output Level:+9 dBV
Output Impedance:500Ω
Output Converter Resolution:24-bit, 48 kHz sampling

Audio Performance
(Analog In to Analog Out)
Signal To Noise Ratio:>100 dB A-weighted
THD+N:< 0.005%
Frequency Response:± 1dB from 22Hz to 22kHz
Internal DSP Resolution:28-bit
Power Consumption:7 Watts max (9VAC Alesis P3)

Mechanical
Size:2.1” H x 5.8” W x 3.9” D / metric: 53mm H x 148mm W x98mm D
Weight:12.6oz. / 357gr