# Audio Settings

Configure audio output devices and timecode input in **Config → Audio Settings**.

## Driver Selection

| Option          | Description                                                              |
| --------------- | ------------------------------------------------------------------------ |
| **ASIO**        | Low-latency professional audio (requires an ASIO-compatible interface)   |
| **WASAPI**      | Windows audio subsystem (works with any sound card)                      |
| **DirectSound** | Legacy Windows audio (higher latency; use only if WASAPI is unavailable) |

> **Recommendation:** Use ASIO whenever possible for latency below 5 ms. Many ASIO drivers support buffer sizes as small as 32 or 64 samples.

## Device Selection

After choosing a driver, select the audio device from the **Device** drop-down. ASIO devices may have a **Control Panel** button to open the vendor's driver settings.

## Sample Rate and Buffer Size

| Setting         | Recommended                                                     |
| --------------- | --------------------------------------------------------------- |
| **Sample rate** | Match the sample rate of your audio source (typically 48000 Hz) |
| **Buffer size** | 256–512 samples for ASIO; larger buffers reduce CPU overhead    |

## Output Channel Routing

For multi-channel audio interfaces, assign clips or screen groups to output channel pairs:

1. Click **+ Route** in the routing table.
2. Choose the **Source** (a screen or a specific clip).
3. Choose the **Output channels** (e.g. channels 3-4).

## Timecode Input (LTC)

| Setting               | Description                                     |
| --------------------- | ----------------------------------------------- |
| **LTC Enabled**       | Enable LTC reception                            |
| **LTC Input Channel** | The audio input channel carrying the LTC signal |
| **Frame Rate**        | 24, 25, 29.97 DF, or 30 fps                     |

Connect the LTC source to the configured input channel. When valid LTC is received, the Transport bar shows **TC: Locked**.

## Monitoring Levels

Use the **Monitor** section to adjust the monitoring output level independently of the main mix. Useful for checking audio in a headphone mix without affecting the main house output.


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