> This page is for Beam.

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://mediakind.ferndocs.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://mediakind.ferndocs.com/_mcp/server.

# Delay modes

## Contribution decoding delay modes (latency)

The modes described here are used to configure decoding delay, or latency of the Contribution decoder. The delay modes affect the delay between the PCR/PTS relationship and delaying picture display (when compared to the system clock reference).

**Delay modes:**

* Standard: This is the default value. Standard mode allows using all encoders, in all modes.

* Low: This is the recommended setting for most contribution link use cases. You can also use this mode in any context where a low delay is required.

* Super Low: This is the recommended setting for simple contribution links when using TS input with SDI output where the lowest delay is required.

**Low** delay and **Super Low** delay modes have been designed and tested with MK.IO Beam encoders to ensure an optimized error-free minimum end-to-end delay. Post-processing operations in the receiver such as video scaling or HDR/SDR conversion will add to the overall processing time and may not be compatible with these delay modes.

If a problem occurs trying to decode a valid input transport stream, please try the **Standard** delay mode before raising a support request.

Additional input processing, such as descrambling or SMPTE ST 2022-7 input, increases overall latency across all delay modes in the Receiver service.

### Setting delay mode

* From the Home page, select the RECEIVER item from the required feed then click .

* Open the Decoding tab in the Parameters window.

* Select a Delay mode.

* Click Save and Continue to apply change.

### Considerations when using Super Low delay mode

* Super Low delay mode is only guaranteed to work with the MK.IO Beam encoder. The encoder configuration needs to be optimized for use with Super Low delay mode.

* 1080i25/29.97 inputs are not supported with Super Low delay mode.

* Dolby Digital decode requires approximately 15ms of additional processing time which will extend the delay when Super Low delay mode is selected.
  Dolby Digital passthrough is not affected.