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OpenClaw converts outbound replies into native voice messages on Feishu, Matrix, Telegram, and WhatsApp. Every other channel receives an audio attachment. Telephony and Talk receive PCM or Ulaw streams. TTS is the speech-output half of Talk’s stt-tts mode (talk.speak calls this same synthesis path). Provider-native realtime Talk sessions synthesize speech inside the realtime provider instead. transcription sessions never synthesize an assistant voice reply. This page is an index. Text-to-speech is documented on seven pages, one per reader job. Open the page that matches your task.

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Where each section moved

Every section heading from the previous single-page version keeps its anchor here, so an existing link such as /tools/tts#per-agent-voice-overrides still resolves. Each entry points at the page that now holds the content.

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Component anchors

The previous single-page version also minted an anchor for every step, tab, accordion, and field. Those anchors are preserved here so that any deep link into the old page still resolves. Nine accordion anchors lost a -1 suffix when the tab that shared their slug moved to a different page. The stub below keeps the old id and points at the new one. Quickstart Configuration Field reference