Speech privacy in open-plan offices. I. Systematic measurements
Bibliographic record
Abstract
This work reports the results of a systematic series of measurements of speech propagation between workstations in a conventional open-plan office. The propagation measurements were repeated as the parameters describing the open-office configuration were systematically changed. The values of the following were varied: workstation panel height, panel absorption, workstation plan size, ceiling height, and ceiling absorption. In addition the effects of the location and type of ceiling light fixtures were investigated as well as details of the workstation furnishings and configuration. The results are evaluated in terms of Speech Intelligibility Index values, SII (ANSI S3.5 1997). The SII is a new version of the articulation index and is a weighted speech-to-noise ratio that is a good measure of the expected speech privacy. The height of the partial height panels separating workstations and the absorption of the ceiling have the most important effects on speech privacy. Workstation size, panel absorption, and lighting configuration have intermediate effects on speech privacy. Ceiling height and workstation configuration had smaller effects on expected speech privacy.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.002 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".