This is happening for me as well for all my working assistant across different voices. @User is this an outage or what?

Disable voice caching https://docs.vapi.ai/api-reference/assistants/create#request.body.voice.11labs.cachingEnabled

To address the consistent muffled voice issue, try disabling voice caching for your 11labs voice configuration:

json
"voice": {
  "11labs": {
    "cachingEnabled": false
  }
}

If the issue persists, escalate to Vapi Support with your affected call IDs and account details by emailing [support@vapi.ai](support@vapi.ai) or posting in the [Vapi Discord #support channel](https://discord.com/invite/pUFNcf2WmH) for real-time help. [Reference: Vapi Support Documentation](https://docs.vapi.ai/support) Sources: - [Vapi Support Documentation](https://docs.vapi.ai/support) - [11labs Voice Caching Documentation](https://docs.vapi.ai/api-reference/assistants/create#request.body.voice.11labs.cachingEnabled)