#how can I get the request id to be returned in the API response. I need this because in my next API
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The request-id is included in the response headers of your text-to-speech API requests. You can retrieve it by reading the response headers after each request. This ID is essential for referencing previous requests and can be passed as a parameter to previous_request_ids in subsequent API calls to maintain prosody and consistency in your audio outputs.
Make sure to send the previous_request_ids in chronological order, with the oldest ID first and the most recent ID last, for optimal results.
how would I do this with python code?
To retrieve the request-id from the API response and use it in subsequent requests as a parameter for previous_request_ids, you can extract it from the response headers. Below is an example Python script demonstrating how to achieve this:
import requests
# Set your API key
api_key = "<your_api_key>"
# Define the headers for the request
headers = {
"Accept": "audio/mpeg",
"Content-Type": "application/json",
"xi-api-key": api_key
}
# Define the payload for the first request
payload = {
"text": "This is the first text-to-speech request.",
"voice_id": "<your_voice_id>"
}
# Make the first API request
response = requests.post("https://api.elevenlabs.io/v1/text-to-speech", headers=headers, json=payload)
# Extract the request-id from the response headers
request_id = response.headers.get("request-id")
print(f"Request ID: {request_id}")
# Use the request-id in the next request
if request_id:
payload_next = {
"text": "This is the second text-to-speech request.",
"voice_id": "<your_voice_id>",
"previous_request_ids": [request_id]
}
# Make the second API request
response_next = requests.post("https://api.elevenlabs.io/v1/text-to-speech", headers=headers, json=payload_next)
# Check the response
if response_next.status_code == 200:
print("Second request successful!")
else:
print(f"Error: {response_next.status_code}")
else:
print("Failed to retrieve request-id from the first response.")
Key Points:
- The
request-idis included in the response headers of the first API call. You can access it usingresponse.headers.get("request-id"). - Pass the
request-idas a parameter in theprevious_request_idsfield of the payload for the next request. - Ensure the
previous_request_idsare sent in chronological order, with the oldest ID first and the most recent ID last, if using multiple IDs.
Replace <your_api_key> and <your_voice_id> with your actual API key and voice ID.
is it possible to do through the ElevenLabs Python SDK
Yes, you can retrieve the request-id from the response headers when using the ElevenLabs Python SDK. This request-id can then be passed as a parameter to previous_request_ids in subsequent API calls to maintain prosody and ensure the speech is consistent with the previously generated version.
Here’s an example of how you can achieve this:
import requests
# Define your API key and endpoint
api_key = "YOUR_API_KEY"
voice_id = "YOUR_VOICE_ID"
text = "This is a test of my cloned voice."
url = f"https://api.elevenlabs.io/v1/text-to-speech/{voice_id}"
# Make the API request
response = requests.post(
url,
json={"text": text},
headers={
"xi-api-key": api_key,
"Content-Type": "application/json"
}
)
# Retrieve the request ID from the response headers
request_id = response.headers.get("request-id")
print(f"Request ID: {request_id}")
# Use the request ID in the next API call
next_text = "This is a continuation of the previous speech."
response_next = requests.post(
url,
json={
"text": next_text,
"previous_request_ids": [request_id]
},
headers={
"xi-api-key": api_key,
"Content-Type": "application/json"
}
)
# Handle the next response
if response_next.status_code == 200:
with open("output_audio.wav", "wb") as audio_file:
audio_file.write(response_next.content)
else:
print(f"Error: {response_next.status_code}, {response_next.text}")
Key Points:
- Retrieve
request-id: Therequest-idis included in the response headers of the initial API call. Useresponse.headers.get("request-id")to extract it. - Pass
previous_request_ids: Include therequest-idin theprevious_request_idsparameter in the next API call to maintain prosody and consistency.
Replace YOUR_API_KEY and YOUR_VOICE_ID with your actual API key and voice ID. This approach ensures that the generated speech aligns with the previous version.
Does ElevenLabs respect prosody tags? I can see break time tag working for pauses, but what about others for cadence or pitch?
The provided content does not mention support for pros tags like cadence or pitch adjustments. ElevenLabs supports the <break time="X"> tag for pauses, which creates natural breaks in speech, but there is no information indicating support for other SSML tags related to prosody, such as pitch or cadence adjustments.
For more advanced control over speech elements, you may want to refer to the Product Documentation for detailed capabilities or explore post-processing options using third-party tools.
is it possible to stitch together responses using streaming with the python SDK? If so, how do you retrieve the request_id from the streaming generator/response (in order to set previous_request_ids)?