Source: https://guthlabs.ai/docs/instrument-workflows/audio-rack/

instrument kit / verified-workflow-definition

# Audio Engineer's Rack

Gain structure, room, and monitoring that measure right.

Status: **observed**Lifecycle: **verified-workflow-definition**

## Goal

Gain structure, room, and monitoring that measure right.

## Instrument chain

- 01

**[dB SPL / dBu / dBV Converter](<https://guthlabs.ai/docs/instruments/db-spl-dbu-dbv-converter/>)**

reference levels

VERIFIED

- 02

**[Gain Staging / dB Sum Calculator](<https://guthlabs.ai/docs/instruments/gain-staging-db-sum-calculator/>)**

summing

VERIFIED

- 03

**[dBFS / Audio Level Calculator](<https://guthlabs.ai/docs/instruments/dbfs-audio-level-calculator/>)**

digital headroom

VERIFIED

- 04

**[Sample Rate / Nyquist Frequency Checker](<https://guthlabs.ai/docs/instruments/sample-rate-nyquist-frequency-checker/>)**

digital limits

VERIFIED

- 05

**[Bit Depth Dynamic Range Calculator](<https://guthlabs.ai/docs/instruments/bit-depth-dynamic-range-calculator/>)**

noise floor

VERIFIED

- 06

**[Latency / Buffer Size Calculator](<https://guthlabs.ai/docs/instruments/latency-buffer-size-calculator/>)**

monitoring

VERIFIED

- 07

**[Comb Filtering / Phase Cancellation Predictor](<https://guthlabs.ai/docs/instruments/comb-filtering-phase-cancellation-predictor/>)**

mic placement

VERIFIED

- 08

**[Room Modes Calculator (Axial)](<https://guthlabs.ai/docs/instruments/room-modes-calculator-axial/>)**

room

VERIFIED

- 09

**[Passive Crossover Frequency Calculator](<https://guthlabs.ai/docs/instruments/passive-crossover-frequency-calculator/>)**

speakers

VERIFIED

- 10

**[Speaker Impedance Load Calculator (Series/Parallel)](<https://guthlabs.ai/docs/instruments/speaker-impedance-load-calculator-series-parallel/>)**

amp load

VERIFIED

- 11

**[Sound Level Distance Attenuation (Inverse Square Law)](<https://guthlabs.ai/docs/instruments/sound-level-distance-attenuation-inverse-square-law/>)**

placement levels

VERIFIED

## Handoffs and cross-checks

Levels chain dBu→dBFS; room modes + comb filters share speaker/listener geometry.

## PointGuard stance

Distinguish coherent vs uncorrelated summation every time levels are added (+6 vs +3 dB).

## Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

- `INSTRUMENT_COMBOS.json`

- `VERIFIED_LEDGER.json`