Roland D-70: The Advanced Digital Linear Synthesizer

Overview of the Roland D-70

The Roland D-70, introduced in 1990, is a sophisticated digital synthesizer that built upon the success of its predecessor, the D-50. Known for its enhanced sound capabilities and improved user interface, the D-70 offered musicians and producers a powerful tool for creating complex and dynamic sounds.

Key Features of the Roland D-70

• Synthesis: Advanced Linear Arithmetic (LA) synthesis
• Polyphony: 30 voices
• Oscillators: 4 partials per tone, with PCM waveforms and synthesized portions
• Filter: Digital Time Variant Filter (TVF) with resonance
• Envelopes: Time Variant Amplifier (TVA) and Pitch envelopes
• LFO: 2 LFOs per tone
• Keyboard: 76-key velocity and aftertouch sensitive keyboard
• Memory: 128 preset patches, 128 user patches
• Effects: Built-in multi-effects processor including reverb, chorus, and more
• Display: Large backlit LCD screen
• Connectivity: MIDI In/Out/Thru, stereo outputs, individual outputs

Development and Innovation

The D-70 was developed by Roland as an evolution of the D-50, offering more advanced sound-shaping capabilities and a more intuitive interface. It expanded on the LA synthesis concept, providing users with greater control over sound creation and manipulation.

Unique Aspects

• Enhanced LA Synthesis: Improved upon the D-50’s synthesis engine for more complex sounds
• Expanded Polyphony: Increased voice count for richer, more layered sounds
• Improved Interface: More direct control over sound parameters compared to the D-50

Impact on Music Production

Applications in Music

• Pop and Rock: Used for creating rich, layered sounds in productions of the early 1990s
• Electronic Music: Popular for its ability to produce complex, evolving textures
• Film Scoring: Utilized for its versatile sound palette and high-quality effects
• Live Performance: Favored by touring musicians for its extended keyboard and powerful sounds

Legacy and Historical Significance

• Represented an evolution in digital synthesis technology
• Bridged the gap between the iconic D-50 and later digital workstations
• Continues to be appreciated by musicians and producers for its unique sound character

Conclusion: The Roland D-70’s Place in Synthesizer History

The Roland D-70 stands as a significant instrument in the evolution of digital synthesizers. Its advanced LA synthesis, expanded polyphony, and improved user interface made it a powerful tool for sound designers and musicians in the early 1990s. While it may not have achieved the same iconic status as the D-50, the D-70’s legacy lies in its role as a bridge between early digital synthesizers and more advanced workstations, contributing to the development of modern synthesizer technology.