Ocean Swift has announced the release of a compact, zero-friction instrument designed for rapid auditioning, tuning checks, and curation of oscillator-style samples.
Available now as a free Kontakt Player-compatible tool, the Sample Tester aims to empower producers, sound designers, and sample library creators to streamline their workflow.
With Sample Tester, users can drag and drop a sample file and immediately hear it played polyphonically, allowing quick assessment of tuning, harmonic behavior, and musical context. The instrument:
- Automatically detects or permits manual setting of the root note.
- Displays MIR-derived metrics such as pitch, peak, RMS, and loudness at a glance.
- Offers an engine toggle to compare Direct-From-Disk streaming versus Time Machine Pro sample stretching.
- Provides one-click amplitude envelope shapes (Perc, Bell, Piano, Lead, Pad).
- Supports NKS / NKS2 mappings, compatible with hardware control surfaces.
- Works fully in the free Kontakt Player—no full Kontakt license required.
In modern production environments, sound designers and producers often sift through large volumes of raw samples. Determining which ones will behave musically, tune correctly, or integrate well into a kit or melodic instrument can be time-consuming. Sample Tester accelerates that decision-making:
- Instant feedback: No waiting for heavy DAW setup.
- Precise metrics: MIR data gives insight beyond the ear alone.
- Real-time auditioning: Hear the sample in chords or context, not just as a solo note.
- Flexible workflow: Works for tonal, looped, oscillator-style materials.
These features combine to let creators “decide faster, tune with confidence, and build better libraries.”
Ocean Swift positions Sample Tester as a perfect companion to its Spectral Oscillators Toolkits, but the tool is equally useful for any user working with tonal or looped sample material.
More information: Ocean Swift Synthesis

