> ## Documentation Index
> Fetch the complete documentation index at: https://help.ondeckapps.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Audio & Visual Analysis Modules

> Modules for monitoring audio levels, visualizing frequencies, and transcribing speech.

Relay provides deep audio integration for monitoring your production environment. These modules rely on inputs configured in your **Global Audio Settings**.

## SPL Meter

The SPL Meter module displays sound level data from any Mac audio input.

### Setup

1. Open the **Global Audio Settings** and configure an input in the **Measurement** tab.
2. Add the SPL Meter module to a tile and select that measurement input.
3. Select your desired weighting (A, C, or flat) and response time (Fast or slow).

### Features

* **Calibration:** Apply an offset (in dB) within Global Audio Settings to match a known reference meter.
* **SPL Logging:** Relay can record SPL data directly to CSV files when Live Mode is active, complete with a pulsing green indicator on your tiles.

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## Real-Time Analyzer (RTA)

A visual analysis module that breaks down your audio inputs into discrete frequency bands in real-time.

### Setup

1. Configure a measurement input in **Global Audio Settings**.
2. Add the RTA module to a tile and select the input.

### Features

* **Display Modes:** Choose between standard bar graphs or filled-curve display modes.
* **High Resolution:** Adjust the analyzer resolution anywhere between 1-octave and 1/48-octave bands for highly detailed acoustic monitoring.
* **Peak Hold:** Enable peak-hold to track the highest frequency levels over a period of time.

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## Spectrograph

A scrolling waterfall view that visualizes audio frequency distributions over time, helping you spot persistent feedback frequencies or structural imbalances.

### Setup

1. Configure a measurement input and set a custom display color in **Global Audio Settings**.
2. Add the Spectrograph module to a tile.

### Features

* **Visual Heatmap:** Frequency intensity is displayed as color density over time.
* **Color Syncing:** The module automatically utilizes the custom color you defined for that input in your global settings, making it easy to identify which mic you are looking at.

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## DAW Transport

Keep your dashboard in sync with your playback rigs by monitoring and controlling supported DAW (Digital Audio Workstation) transport workflows.

### Setup

1. Connect your DAW via MIDI or network protocol in the External Devices settings.
2. Add the DAW Transport module to a tile.

### Features

* **Transport Monitoring:** See exactly when your DAW is playing, stopped, or recording.
* **Dashboard Control:** Send transport commands (Play, Stop, Record) directly from your Relay tiles without switching applications.

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<Warning>BETA FEATURES</Warning>

## Live Transcription \[BETA]

Converts a selected audio input into scrolling text on the dashboard. This is incredibly useful for providing live cues or context to operators without an intercom.

### Setup

1. Add inputs via the **Transcription** tab of your **Global Audio Settings**.
2. Add the Live Transcription module to a tile and select the input.

### Features

* **Advanced Controls:** Fine-tune auto-gain sensitivity and engine preference per-input.
* **Word Substitutions:** Easily filter or replace specific words on the fly (e.g., replacing a speaker's verbal tick).
* **Profanity Controls:** Automatically mask or remove profanity from the transcript.
* **Automation Triggers:** You can use word detection to trigger automation workflows!