BitHeadz Retro AS-1

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The Retro AS-1 is a full featured programmable analog synthesizer for Macintosh and PC computers. Taking a modular approach you create and link modules of oscillators, envelopes, filters and LFO sections. The results can create stunning analog synth sounds in a clean 44.1kHz digital environment. The AS-1 is fully MIDI equipped and works with sequencers and MIDi controllers. However it has an on-screen keyboard and can also be triggered from the computer keyboard.

New patches can be stored on your hard disk for a virtually unlimited amount of user patches! The AS-1 has such extensive and complete editing and parameter control that it could intimidate, even baffle some users. Be sure and try the FREE DEMO version and see if the professional Retro AS-1 polyphonic synthesizer is for you!

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Demos & Media

Audio Clip 1 Sample pads and chords I did using the free demo version. It's so cool!


Polyphony - Up to 32 notes
Oscillators - 3 oscillators per voice: Saw, Pulse, Triangle, Sine, Sine squared, Glottal, Noise (white, pink, red)
Memory - Unlimited
Filter - 2 filters: 13 filter types, including 4-pole resonant lowpass, highpass, bandpass, allpass, notch, and state-variable
LFO - Dozens of LFOs, 6 shapes, midi sync, modulate almost any source and destination
Keyboard - On-Screen keyboard
Arpeg/Seq - Arpeggiator: Midi sync, multiple modes
Control - MIDI (16 parts)
Date Produced - 1998


Images from Bitheadz web site.