# Murf Adds Word Timestamps for WebSocket Streaming

By Steven Van · 2026-10-07

Falcon 2 word timestamps work across every locale except Chinese, Japanese and Korean.

Voice agents using [Murf AI](<https://creatorstoolbox.com/tools/murf>) can now track how much of a response has played when a user interrupts. Falcon 2’s WebSocket API returns start and end times for each spoken word.

## Enable timestamps for a connection

Set add\_word\_timestamps to true at the top level of a frame, alongside text. The setting applies to the whole WebSocket connection. Settings placed inside voice\_config are ignored without an error or warning.

Timestamps arrive in separate JSON frames alongside the audio, with start\_s and end\_s values in seconds. Each context’s timing starts at zero, and later sentences continue from the previous sentence’s last word. The returned words reflect spoken text, so “$50” becomes “fifty dollars”.

## Handle interruptions at the playback position

Audio is generated faster than real time, so timestamps can arrive before the corresponding words play. To determine what a listener heard, compare each word’s start\_s with the current playback position.

When a user interrupts, stop playback and send a clear frame with that turn’s context\_id to stop queued audio. Discard received audio beyond the playback position and timestamps whose start\_s falls after it.

## Supported locales

Word timestamps are available in every locale except Chinese, Japanese and Korean. The [Advanced Settings documentation](<https://murf.ai/api/docs/text-to-speech/web-sockets/advanced-settings>) covers the response format and timing behaviour.

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[Original source](<https://murf.ai/api/docs/changelog/2026/10/7>)

[Read Murf Adds Word Timestamps for WebSocket Streaming on Creators Toolbox](<https://creatorstoolbox.com/blog/murf-ai-word-timestamps-for-websocket-streaming>)

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