01
Established
Supported by mature measurement, replicated findings, standards or authoritative technical guidance.
Example · Web Audio signal format; hearing anatomy; medical ultrasound imaging.Evidence has
more than one setting.
Our labels show how far the available evidence can reasonably take a claim. Last policy review: 3 October 2026.
THE SCALE
Four evidence labels
02
Promising
Credible studies show an effect, but replication, sample size, mechanism or practical relevance remains limited.
Example · Selected clinical outcomes from particular auditory interventions.03
Mixed evidence
Studies point in different directions or vary enough that a broad conclusion would be misleading.
Example · Many claims about binaural beats and cognition.04
Exploratory
A hypothesis, tradition, subjective report or early observation worth discussing without presenting it as fact.
Example · Personal listening responses and untested frequency associations.Start close to the evidence
We prioritise original research papers, systematic reviews, recognised standards and public-health or regulatory institutions. A commercial summary may help locate a study, but it does not replace it.
Describe the actual intervention
Frequency alone is rarely enough. We record waveform, delivery method, level, duration, sample, comparator and outcome whenever the source provides them.
Match words to certainty
Association is not causation. A statistically significant result is not automatically large, clinically useful or applicable to every listener.
Date and correct
Articles show a review date. Material corrections are made openly, and readers can submit a source or challenge through the feedback form.
BOUNDARIES
What the studio can and cannot demonstrate
- Can: generate and combine digital audio waveforms in a browser.
- Can: support repeatable listening comparisons on one documented setup.
- Cannot: measure sound pressure at the listener without calibrated hardware.
- Cannot: generate radio, optical or medical-ultrasound fields through ordinary audio output.
- Cannot: turn a frequency association into evidence of treatment.