No. You can reuse a YouTube stream key for later broadcasts by creating a custom stream key or reusing your previous stream settings. A new rain-stream session does not automatically require a new key. The key is the credential your encoder uses to send video to YouTube, so reset it if it is compromised and update the encoder with the replacement.
What a stream key does—and what it does not do
YouTube describes a stream key as a password and address for the stream: your encoder uses it to send its feed to YouTube. Treat it as a credential, and do not share it publicly. YouTube Help: Manage live stream settings
The key is separate from a scheduled stream or public watch page. Reusing the key does not reuse the same event or page. For a scheduled broadcast, you still manage the event, connect the encoder, wait for the preview, and start the scheduled stream in Live Control Room. YouTube Help: Create a YouTube live stream with an encoder
How to reuse a stream key
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In YouTube Live Control Room, open the stream-key selector and create a custom stream key. Choose the settings you want for the encoder.
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Copy that key into your encoder’s stream settings and keep it private.
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For a later broadcast, select the custom key again, or use YouTube’s Reuse settings workflow if you are creating a new stream and want the previous settings—including the key—to carry over.
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For a scheduled stream, manage and start the scheduled event separately in Live Control Room. Reusing the key alone does not create or start the event.
YouTube’s instructions explicitly say to create a custom stream key to reuse the same key. See Manage live stream settings and Create a YouTube live stream with an encoder. Interface labels can change, so if the selector or workflow looks different, follow the current Live Control Room prompts.
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When you should replace the key
Reset the key in Live Control Room if you believe it has been exposed or compromised, then replace the saved key in your encoder. YouTube also advises getting a new key and updating the encoder for some encoder-start errors. A routine new broadcast, by itself, is not a reason to rotate the key. YouTube Help: Manage live stream settings
One important caveat for a 24/7 rain stream
YouTube says streams under 12 hours are automatically archived. That guidance does not establish how every stream that runs continuously for 24 hours or longer will be archived or made available. Do not assume that key reuse means the entire continuous broadcast will become one archive, or that YouTube will split or retain it in a particular way. Check YouTube’s current guidance for your specific stream setup. YouTube Help: Create a YouTube live stream with an encoder
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Or let it run in the cloud
If you want a rain stream to keep playing without leaving a computer on, StreamNeo is a cloud service for keeping a YouTube channel live from uploaded videos. Upload a recording or make a playlist, add your YouTube stream key, and go live. StreamNeo loops the video from the cloud, rather than streaming from a camera.
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Nothing has to stay running at home; the stream continues from the cloud.
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