The OPL is a digital sound synthesis chip developed by Yamaha in the mid 1980s. Among other products, it was used in sound cards for PC, including the Ad Lib card and early Sound Blaster series.
| Price | $9.99 |
|---|---|
| Author | DiscoDSP LLC |
| Type | Instrument |
| Instrument type | Synth |
| Instrument sounds | Keyboards |
| Rating | total: (22), current: (22) |
| Version | 2.7.2 |
| Released | 06/04/2020 |
| Updated | 03/06/2026 |
Added App Data Group shared container between Standalone and AUv3 builds. Added Bluetooth MIDI device discovery dialog to settings menu. Added iTunes File Sharing support for SBI instruments. Added Carrier analog modeled wave shaper parameter. Fixed Carrier Multiplier label alignment.
Early Schroeder reverberators consisted of the following elements: a series connection of several all-pass filters, a parallel bank of feedback comb filters, a mixing matrix.
| Price | $4.99 |
|---|---|
| Author | DiscoDSP LLC |
| Type | Effect |
| Effect type | Reverb, Delay, Echo |
| Rating | total: (17), current: (17) |
| Released | 08/13/2020 |
| Updated | 05/20/2025 |
Get audio visuals with your AUv3 host or the standalone app. Scope uses a two-axis graph to give a visual representation of a waveform over time, with the horizontal axis representing time and the vertical axis representing the amplitude.
| Price | $2.99 |
|---|---|
| Author | DiscoDSP LLC |
| Type | Tool |
| Supports | Audio Unit (AU) |
| Rating | total: (20), current: (20) |
| Released | 05/11/2020 |
| Updated | 05/03/2026 |
OB-Xd is based on the Oberheim OB-X. It attempts to recreate its sound and behavior, but as the original was very limited in some important ways, a number of things were added or altered to the original design.
| Price | $14.99 |
|---|---|
| Author | DiscoDSP LLC |
| Type | Instrument |
| Instrument type | Synth |
| Instrument sounds | Keyboards |
| Rating | total: (64), current: (64) |
| Released | 05/28/2019 |
| Updated | 03/31/2023 |