explain what happens when livekit receives a SIP I...
# ask-ai
c
explain what happens when livekit receives a SIP Invite
t
Thanks for reaching out, Sai. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.
When LiveKit receives a SIP INVITE, the process depends on whether it is an inbound or outbound call: For inbound calls: • Your SIP trunking provider sends a text-based INVITE request to LiveKit SIP. • The SIP service checks the authorization credentials configured for the LiveKit trunk against those on your provider's SIP trunk. • LiveKit looks for a matching dispatch rule. • If a matching dispatch rule is found, a SIP participant is created for the caller and placed into a LiveKit room. For outbound calls: • When you execute the
CreateSIPParticipant
request, LiveKit SIP sends an INVITE request to your SIP provider. • The provider checks authentication credentials and returns a response to LiveKit. • If the call is accepted, LiveKit dials the user and creates a SIP participant in the LiveKit room. • If the call is not accepted by the SIP trunk provider, the
CreateSIPParticipant
request fails. Sources: Making outbound calls | LiveKit Docs | Accepting inbound calls | LiveKit Docs
c
if I pass in a user part in the sip request like this: sip:<user_part>@[SIP_ID].sip.livekit.cloud, in the python server in JobContext, how to acces tht user part?
t
Unfortunately, I couldn't find specific information on how to access the user part from a SIP request in the
JobContext
within a Python server. This might require a deeper look into your server's implementation or the LiveKit SDK documentation. If you need further assistance, I recommend consulting the LiveKit SDK documentation or reaching out to a developer familiar with your server setup.
c
how to access SIP headers from JobContext
t
I'm sorry, but I couldn't find specific information on how to access SIP headers from
JobContext
in LiveKit. This might require reviewing the LiveKit SDK documentation or your server's implementation details. If you need further assistance, I recommend consulting the LiveKit SDK documentation or reaching out to a developer familiar with your setup.
c
is there any way to pass in metadata like agent configurations when doing an inbound sip call?
t
Yes, you can pass metadata like agent configurations during an inbound SIP call in LiveKit. Here are some ways to achieve this: • Set custom metadata on SIP participants: You can configure metadata on SIP participants created by a dispatch rule. For example:
Copy code
{
  "metadata": "{\"is_internal\": true}",
  "rule": {
    "dispatchRuleIndividual": {
      "roomPrefix": "call-"
    }
  }
}
Explicitly dispatch agents: For inbound SIP calls, you can define agents using the
room_config.agents
field in SIP dispatch rules. This allows you to manage multiple agents within a single project. • Configure additional properties: You can set participant metadata, attributes, and session properties for all incoming calls that match the trunk. Refer to the CreateSIPInboundTrunk documentation for a full list of available parameters. These options provide flexibility in managing metadata and agent configurations for inbound SIP calls. Sources: SIP dispatch rule | LiveKit Docs | Dispatching agents | LiveKit Docs | SIP inbound trunk | LiveKit Docs
c
ok but that is like static, pre-determined. I need dynamic. how can I do this?
t
For dynamic metadata or agent configurations during inbound SIP calls, LiveKit primarily supports static configurations through dispatch rules and predefined metadata. However, if you need dynamic behavior, you might consider the following approaches: • Custom Metadata: While metadata is typically set statically in dispatch rules, you could dynamically update the dispatch rule or metadata before the call is routed. This would require programmatic control over the dispatch rules. • Dynamic Agent Assignment: Use a middleware or server-side logic to intercept the SIP INVITE and dynamically assign agents or metadata based on the incoming request. This could involve modifying the SIP headers or routing logic dynamically. • Custom SIP Headers: Pass dynamic information through custom SIP headers in the INVITE request. Your server can then parse these headers and apply the necessary configurations dynamically. For more advanced dynamic configurations, you may need to implement custom server-side logic or middleware to handle the SIP requests and apply the desired behavior dynamically. Sources: SIP dispatch rule | LiveKit Docs | Dispatching agents | LiveKit Docs | SIP inbound trunk | LiveKit Docs | Accepting incoming calls | LiveKit Docs
c
if I have many trunks corresponding to the same phone number how can I intelligenly route?
t
Unfortunately, I couldn't find specific information on how to intelligently route calls when multiple trunks correspond to the same phone number in LiveKit. However, you might consider implementing custom logic on your server to handle routing based on specific criteria, such as SIP headers, metadata, or other dynamic factors. If you need further assistance, I recommend consulting the LiveKit SDK documentation or working with a developer to design a routing strategy tailored to your requirements.
c
for each call to the inbound SIP URL i need to set new metadata, how can I do this?
t
To set new metadata for each call to the inbound SIP URL in LiveKit, you can consider the following approaches: • Using Dispatch Rules: You can configure metadata in a dispatch rule, which will be inherited by all SIP participants created by that rule. For example:
Copy code
{
  "metadata": "{\"is_internal\": true}",
  "rule": {
    "dispatchRuleIndividual": {
      "roomPrefix": "call-"
    }
  }
}
Using the CreateSIPInboundTrunk API: When creating an inbound trunk, you can use the
metadata
parameter to assign initial metadata to the trunk. This metadata will be added to every SIP participant that uses the trunk. For example:
Copy code
Parameter: metadata
Type: string
Required: no
Description: Initial metadata to assign to the trunk. This metadata is added to every SIP participant that uses the trunk.
However, if you need to dynamically set unique metadata for each call, you may need to implement custom server-side logic to handle the SIP requests and dynamically assign metadata based on the incoming call details. Sources: SIP dispatch rule | LiveKit Docs | SIP APIs | LiveKit Docs
c
this is my sip URL:
sip:[SOME_ID]@[SIP_ID]sip.livekit.cloud
, so SIP_ID is given by livekit i just redacted it here. what is SOME_ID here? I want to pass some unique id there and somehow get it in JobContext. is this possible?
t
Unfortunately, I couldn't find specific information on whether you can pass a unique ID in the
SOME_ID
part of the SIP URL and access it in
JobContext
in LiveKit. However, this might be achievable by using custom SIP headers or metadata to pass and retrieve such information dynamically. If this is a critical requirement, I recommend consulting the LiveKit SDK documentation or working with a developer to explore potential solutions for dynamically passing and accessing unique identifiers in your setup.
c
what do you mean custom SIP headers?
t
Custom SIP headers in LiveKit allow you to include additional information in SIP INVITE requests, which can then be used for routing or participant configuration. Here are some key points about custom SIP headers: • Mapping Custom Headers: You can map custom
X-*
SIP headers to participant attributes. This enables you to route calls or configure workflows based on these headers. • Setting Headers in INVITE Requests: Use the
headers
parameter to include custom
X-*
headers in SIP INVITE requests. These headers are sent as-is and can help identify or manage calls. • Mapping Headers to Attributes: You can map SIP
X-*
header names to participant attribute names using
headers_to_attributes
. Similarly, you can map SIP headers from INVITE requests to
sip.h.*
participant attributes using
attributes_to_headers
. • Documentation: For more details on custom attributes and headers, you can refer to the LiveKit documentation at this link. Using custom SIP headers, you can pass dynamic information like unique IDs and retrieve them for processing in your application. Sources: SIP APIs | LiveKit Docs | SIP overview | LiveKit Docs
c
so if I send sip headers how do I parse them in the backend?
t
To parse SIP headers in the backend with LiveKit, you can use the following methods: • Map SIP Headers to Participant Attributes: Use the
headers_to_attributes
configuration to map SIP
X-*
headers from INVITE requests to participant attribute names. This allows you to access the header values as participant attributes. • *Map Headers to
sip.h.*
Attributes:* Use the
attributes_to_headers
configuration to map SIP headers from INVITE requests to
sip.h.*
participant attributes. This provides a structured way to access header data. • Include Specific Headers: Use the
include_headers
option with the SIPHeaderOptions type to specify how SIP headers should be mapped to attributes. These configurations can be applied when creating a SIP trunk, such as through the CreateSIPInboundTrunk API. This setup allows you to dynamically parse and utilize SIP headers in your backend logic. Sources: SIP APIs | LiveKit Docs | SIP inbound trunk | LiveKit Docs
c
explain SIPHeaderOptions usage. please give me xamples
t
Unfortunately, I couldn't find specific examples of using
SIPHeaderOptions
in LiveKit. However, the
SIPHeaderOptions
enum allows you to control which SIP headers are included or mapped. The available options typically include: • `SIP_NO_HEADERS`: No headers are included. • `SIP_X_HEADERS`: Only custom
X-*
headers are included. • `SIP_ALL_HEADERS`: All headers are included. To implement this, you would configure the
include_headers
parameter when setting up your SIP trunk or handling SIP requests. For detailed implementation, you may need to refer to the LiveKit SDK documentation or consult with a developer familiar with your setup.
c
help
t
I'm here to help! Could you please provide more details about the issue or question you're facing? This will help me assist you more effectively.
c
in python, how can I publish audio tracks from all participants in a room and how can I simply subscribe to those audio tracks (and not publish) on swift ios side
t
Unfortunately, I couldn't find specific examples for publishing audio tracks from all participants in a room using Python and subscribing to those tracks on Swift iOS. However, here are some general guidelines: • Publishing Audio Tracks in Python: You would typically use the LiveKit Python SDK to publish audio tracks. This involves creating a room, connecting participants, and using the SDK's methods to publish audio tracks for each participant. • Subscribing to Audio Tracks in Swift iOS: On the iOS side, you can use the LiveKit Swift SDK to connect to the room and subscribe to audio tracks. The SDK provides methods to handle track subscriptions and playback. For detailed implementation, I recommend referring to the LiveKit SDK documentation for Python and Swift. If you need further assistance, feel free to provide more details about your setup or requirements.
c
give me code samples for both
t
I'm sorry, but I couldn't find specific code samples for publishing audio tracks in Python and subscribing to audio tracks in Swift iOS using LiveKit. However, here are some general steps you can follow: Publishing Audio Tracks in Python: • Connect to a room using the LiveKit Python SDK. • Create an audio track (e.g., from a microphone or file). • Publish the audio track to the room. Subscribing to Audio Tracks in Swift iOS: • Connect to a room using the LiveKit Swift SDK. • Listen for events when participants publish tracks. • Subscribe to the audio tracks and play them using the appropriate audio APIs. For detailed implementation, I recommend checking the LiveKit SDK documentation or reaching out to a developer familiar with LiveKit. If you have specific questions about your setup, feel free to share more details, and I'll do my best to assist you further.
c
in swift ios how can I subscribe to the audio track but not publish? I do not want the livekit participants to hear me. give me code
t
I'm sorry, but I couldn't find specific code examples for subscribing to an audio track without publishing in Swift iOS using LiveKit. However, here are the general steps you can follow: • Connect to the LiveKit room using the Swift SDK. • Set the
publish
parameter to
false
when joining the room to ensure you don't publish any tracks. • Listen for events when participants publish audio tracks. • Subscribe to the audio tracks and play them using the appropriate audio APIs. For detailed implementation, I recommend referring to the LiveKit Swift SDK documentation or consulting with a developer familiar with LiveKit. If you have specific questions or need further assistance, feel free to ask!
c
explain the first 2 points. give me detailed code on how to do this please
t
I'm sorry, but I couldn't find detailed code examples for connecting to a LiveKit room and disabling publishing in Swift iOS. However, here is a general outline of how you can achieve this: 1. Connect to the LiveKit Room: • Use the LiveKit Swift SDK to connect to a room by providing the room URL and access token. 2. Disable Publishing: • When joining the room, ensure that you do not publish any tracks by not attaching any local audio or video tracks to the room. For detailed implementation, I recommend referring to the LiveKit Swift SDK documentation or consulting with a developer familiar with LiveKit. If you have specific questions or need further assistance, feel free to ask!
c
how to get access token
t
To get an access token in LiveKit, you can use one of the following methods: 1. Using LiveKit CLI:
Copy code
lk token create \
--api-key <project_key> --api-secret <project_secret> \
--join --room test_room --identity test_user \
--valid-for 24h
2. Using Node.js Server SDK:
Copy code
import { AccessToken } from 'livekit-server-sdk';

const roomName = 'name-of-room';
const participantName = 'user-name';

const at = new AccessToken('api-key', 'secret-key', {
  identity: participantName,
});
at.addGrant({ roomJoin: true, room: roomName });
3. From the LiveKit Dashboard: You can generate tokens directly from your project's dashboard at LiveKit Dashboard. Choose the method that best fits your setup. If you need further assistance, feel free to ask! Sources: CLI Setup | LiveKit Docs | LiveKit JS Server SDK - v2.9.7 | Analytics API | LiveKit Docs
c
can you help? i have a question
t
Of course! Please let me know your question, and I'll do my best to assist you.
c
how to get token to subscribe to audio track? swift.
Copy code
let room = LiveKit.connect(options: ConnectOptions(url: url, token: token), delegate: self)
  ...
  func room(_ room: Room,
            participant: RemoteParticipant,
            didSubscribe publication: RemoteTrackPublication,
            track: Track) {

    /* Do things with track, publication or participant */
  }
this is what the docs say
t
To generate a token for subscribing to an audio track in LiveKit, you need to create an access token with the appropriate permissions. Here’s how you can do it: 1. Using LiveKit CLI:
Copy code
lk token create \
--api-key <project_key> --api-secret <project_secret> \
--join --room <room_name> --identity <user_identity> \
--valid-for 24h
2. Using Node.js Server SDK:
Copy code
import { AccessToken } from 'livekit-server-sdk';

const roomName = 'room-name';
const participantName = 'user-identity';

const at = new AccessToken('api-key', 'secret-key', {
  identity: participantName,
});
at.addGrant({ roomJoin: true, room: roomName });
const token = at.toJwt();
Once you have the token, you can use it in your Swift code to connect to the room and subscribe to audio tracks:
Copy code
let room = LiveKit.connect(options: ConnectOptions(url: url, token: token), delegate: self)
If you need further assistance with token generation or Swift implementation, feel free to ask!
c
doe sthe token expire?
t
Yes, the token can expire. When generating a token, you can specify its validity period using the
--valid-for
option in the CLI or by setting an expiration time programmatically in the SDK. For example: Using LiveKit CLI:
Copy code
lk token create \
--api-key <project_key> --api-secret <project_secret> \
--join --room <room_name> --identity <user_identity> \
--valid-for 24h
Using Node.js Server SDK:
Copy code
const at = new AccessToken('api-key', 'secret-key', {
  identity: participantName,
  ttl: 3600 // Token valid for 1 hour (in seconds)
});
After the token expires, the user will no longer be able to connect to the room using that token. You will need to generate a new token for continued access.
c
how can I subscribe to audio from track via swift? and how can I have token last for duration of entire session
t
To address your questions: 1. Subscribing to Audio Tracks in Swift: To subscribe to audio tracks in Swift using LiveKit, you can use the following approach:
Copy code
let room = LiveKit.connect(options: ConnectOptions(url: url, token: token), delegate: self)

func room(_ room: Room,
          participant: RemoteParticipant,
          didSubscribe publication: RemoteTrackPublication,
          track: Track) {
    if let audioTrack = track as? RemoteAudioTrack {
        // Handle the subscribed audio track
        print("Subscribed to audio track: \(audioTrack.trackId)")
    }
}
2. Creating a Token for the Entire Session Duration: To create a token that lasts for the entire session, you can set a sufficiently long expiration time when generating the token. For example: Using LiveKit CLI:
Copy code
lk token create \
--api-key <project_key> --api-secret <project_secret> \
--join --room <room_name> --identity <user_identity> \
--valid-for 8h
Using Node.js Server SDK:
Copy code
const at = new AccessToken('api-key', 'secret-key', {
  identity: participantName,
  ttl: 28800 // Token valid for 8 hours (in seconds)
});
Ensure the token's validity period is long enough to cover the expected session duration. If you need further assistance, feel free to ask!
c
this is my code: async def entrypoint(ctx: JobContext): """ This function runs in a new process each time the agent is dispatched to a room. """ # Connect to the room await ctx.connect(auto_subscribe=AutoSubscribe.AUDIO_ONLY) } tell me how to get token pls. this is python
t
To generate a token for LiveKit in Python, you can use the LiveKit Server SDK for Python. Here's an example of how you can create a token:
Copy code
from livekit_server_sdk import AccessToken

# Replace with your API key and secret
api_key = "your_api_key"
api_secret = "your_api_secret"

# Replace with the room name and participant identity
room_name = "your_room_name"
participant_identity = "your_participant_identity"

# Create the access token
token = AccessToken(api_key, api_secret, identity=participant_identity)

# Add permissions to join the room
token.add_grant({"roomJoin": True, "room": room_name})

# Generate the token string
token_string = token.to_jwt()

print("Generated Token:", token_string)
Use the generated token in your
ctx.connect
call to authenticate and connect to the room. If you need further assistance, feel free to ask!
c
in swift let room = LiveKit.connect(options: ConnectOptions(url: url, token: token), delegate: self) func room(_ room: Room, participant: RemoteParticipant, didSubscribe publication: RemoteTrackPublication, track: Track) { if let audioTrack = track as? RemoteAudioTrack { // Handle the subscribed audio track print("Subscribed to audio track: \(audioTrack.trackId)") } } hwo to actualy play received audio
t
To play received audio from a
RemoteAudioTrack
in Swift LiveKit, you need to use an
AudioRenderer
. Here’s how you can do it:
Copy code
func room(_ room: Room,
          participant: RemoteParticipant,
          didSubscribe publication: RemoteTrackPublication,
          track: Track) {
    if let audioTrack = track as? RemoteAudioTrack {
        // Add an AudioRenderer to play the audio
        let audioRenderer = MyAudioRenderer() // Replace with your AudioRenderer implementation
        audioTrack.add(audioRenderer: audioRenderer)

        print("Subscribed to audio track: \(audioTrack.trackId)")
    }
}
Notes: • The
AudioRenderer
must implement the
render(sampleBuffer:)
method to process and play the incoming audio samples. • You can control the volume of the
RemoteAudioTrack
using its
volume
property (range: 0.0 to 1.0). • To stop playing the audio, you can remove the renderer using
audioTrack.remove(audioRenderer:)
. If you need further assistance with implementing the
AudioRenderer
, feel free to ask! Sources: RemoteAudioTrack | Documentation | AudioRenderer Implementations | Documentation
c
does the func room( get called? I am cfonsued on how this works. I do not want to join the room but just listen to the audio t
t
The
func room(_:participant:didSubscribe:track:)
method is a delegate callback that gets triggered when a participant publishes a track and you successfully subscribe to it. This means you need to be connected to the room to receive this callback and listen to the audio tracks. If you want to listen to audio without actively joining the room as a participant, you can connect to the room in a "listen-only" mode. This can be achieved by: • Generating a token with only the
roomJoin
permission and no publishing permissions. • Not publishing any local tracks (audio or video) when connecting to the room. Here’s an example of connecting in listen-only mode:
Copy code
let room = LiveKit.connect(options: ConnectOptions(url: url, token: token), delegate: self)
Once connected, you will receive the
didSubscribe
callback whenever a remote participant publishes an audio track, and you can handle the audio playback as described earlier. If you need further clarification or assistance, feel free to ask!
c
If you want to listen to audio without actively joining the room as a participant, you can connect to the room in a "listen-only" mode. This can be achieved by: • Generating a token with only the
roomJoin
permission and no publishing permissions. • Not publishing any local tracks (audio or video) when connecting to the room. Here’s an example of connecting in listen-only mode: tell me how to do this. in my python code
t
To create a listen-only mode in your Python code, you need to generate a token with only the
roomJoin
permission and no publishing permissions. Here’s how you can do it:
Copy code
from livekit_server_sdk import AccessToken

# Replace with your API key and secret
api_key = "your_api_key"
api_secret = "your_api_secret"

# Replace with the room name and participant identity
room_name = "your_room_name"
participant_identity = "your_participant_identity"

# Create the access token
token = AccessToken(api_key, api_secret, identity=participant_identity)

# Add permissions to join the room without publishing
token.add_grant({"roomJoin": True, "canPublish": False, "room": room_name})

# Generate the token string
token_string = token.to_jwt()

print("Generated Token:", token_string)
Use this token in your Python code to connect to the room in listen-only mode. Ensure that you do not publish any local tracks when connecting. If you need further assistance, feel free to ask!
c
how do you subscribe to a track with Livekit in swift? also give me prpper imports, etc.
t
To subscribe to a track in LiveKit using Swift, follow these steps with the proper imports and implementation:
Copy code
import LiveKit

class YourClass: ParticipantDelegate {

    // This delegate method will be called when a track is subscribed
    func participant(_ participant: RemoteParticipant, didSubscribeTrack publication: RemoteTrackPublication) {
        // Handle the subscribed track here
        if let audioTrack = publication.track as? RemoteAudioTrack {
            print("Subscribed to audio track: \(audioTrack.trackId)")
            // You can now use the audio track
        }
    }
}

// Example of connecting to a room
let room = LiveKit.connect(options: ConnectOptions(url: "your_url", token: "your_token"), delegate: YourClass())
Notes: • Ensure you import the
LiveKit
framework at the top of your file. • Implement the
ParticipantDelegate
protocol to handle track subscription events. • Use the
didSubscribeTrack
method to process the subscribed track. If you need further assistance, feel free to ask! Sources: participant(_:didSubscribeTrack:) | Documentation | Subscribing to tracks | LiveKit Docs
c
let room = LiveKit.connect(options: connectOptions, delegate: LiveKitRoomDelegate()) but I get this error: Module 'LiveKit' has no member named 'connect'
t
The error occurs because in the Swift SDK, the
connect
method is not a static method of the
LiveKit
module. Instead, it is an instance method of the
Room
class. Here’s how you can properly connect to a room:
Copy code
import LiveKit

let room = Room()
room.connect(url: "your_url", token: "your_token") { result in
    switch result {
    case .success:
        print("Connected to the room successfully!")
    case .failure(let error):
        print("Failed to connect to the room: \(error)")
    }
}
Notes: • Ensure you import the
LiveKit
framework at the top of your file. • Use the
Room
class to create an instance and call the
connect
method. • Provide the correct URL and token for your LiveKit server. If you need further assistance, feel free to ask! Sources: Documentation | LiveKitClient class - livekit_client library - Dart API
c
how to disconnect from room
t
To disconnect from a room in LiveKit Swift, you can use the
disconnect()
method of the
Room
class. Here’s an example:
Copy code
room.disconnect()
Notes: • Calling
disconnect()
ensures that you leave the room properly and notify other participants. • If the application terminates unexpectedly, your participant will automatically disappear from the room after 15 seconds. • It’s good practice to call
disconnect()
when a user intentionally leaves the room while the app continues running. If you need further assistance, feel free to ask! Sources: Connecting to LiveKit | LiveKit Docs | disconnect() | Documentation
c
why does Livekit.connect not work????
t
The
LiveKit.connect
method does not exist in the LiveKit Swift SDK, which is why it doesn't work. Instead, you should use the
connect
method of the
Room
class. Here’s how you can properly connect to a room:
Copy code
import LiveKit

let room = Room()
room.connect(url: "your_url", token: "your_token") { result in
    switch result {
    case .success:
        print("Connected to the room successfully!")
    case .failure(let error):
        print("Failed to connect to the room: \(error)")
    }
}
Notes: • Ensure you import the
LiveKit
framework at the top of your file. • The
connect
method is an instance method of the
Room
class, not a static method of the
LiveKit
module. • Provide the correct URL and token for your LiveKit server. If you need further clarification or assistance, feel free to ask!
c
question: if a room is deleted, do all acces tokens of participants automatically get revoked?
t
Unfortunately, I couldn't find specific information on whether access tokens are automatically revoked when a room is deleted in LiveKit. However, it is likely that participants will be disconnected from the room if it is deleted, as the room no longer exists. Access tokens themselves are typically time-bound and tied to permissions, so they may not be explicitly revoked but would become unusable if the room they are associated with is deleted. If you need a definitive answer, I recommend consulting the LiveKit documentation or reaching out to a developer familiar with LiveKit's backend behavior.
c
if room gets deleted and a participant still is "joined" do I still get charged
t
Unfortunately, I couldn't find specific information on whether you would still be charged if a participant appears "joined" after a room is deleted in LiveKit. However, typically, billing is based on active participants in a room. If the room is deleted, participants should be disconnected, and billing should stop. If you need a definitive answer, I recommend consulting the LiveKit documentation or reaching out to LiveKit support for clarification on billing policies in this scenario.
c
acces tokens are time bound?
t
Yes, access tokens in LiveKit are time-bound. When generating a token, you can specify its validity period by setting an expiration time. For example: Using LiveKit CLI:
Copy code
lk token create \
--api-key <project_key> --api-secret <project_secret> \
--join --room <room_name> --identity <user_identity> \
--valid-for 24h
Using SDKs (e.g., Node.js):
Copy code
const at = new AccessToken('api-key', 'secret-key', {
  identity: participantName,
  ttl: 3600 // Token valid for 1 hour (in seconds)
});
Once the token expires, it can no longer be used to connect to a room. If you need further assistance, feel free to ask!
c
whats the default
t
The default expiration time for LiveKit access tokens is 6 hours. You can override this default by specifying a
ttl
(time to live) parameter when generating the token. For example:
Copy code
const at = new AccessToken('api-key', 'secret-key', {
  identity: participantName,
  ttl: 3600 // Token valid for 1 hour (in seconds)
});
If you need further assistance, feel free to ask! Sources: LiveKit JS Server SDK - v2.9.7
c
i need help
t
I'm here to help! Could you please provide more details about the issue or question you're facing? This will help me assist you more effectively.
c
what is canPublishData?
t
canPublishData
is a Boolean property in LiveKit that indicates whether a participant has permission to publish data to a room. This permission is part of the participant's permissions configuration and can be set when generating an access token or configuring the room. For example, in the Swift SDK, it is defined as:
Copy code
let canPublishData: Bool
It is typically used alongside other permissions like
canPublish
and
canPublishSources
to control what a participant can do in a room. If you need further clarification or examples, feel free to ask! Sources: ParticipantPermissions | Documentation | canPublishData | Documentation | canPublishData
c
waht does it mean?
t
The
canPublishData
property determines whether a participant is allowed to send data messages to other participants in the room. Data messages are typically used for sending non-media information, such as chat messages, control signals, or custom application data. For example, if
canPublishData
is set to
true
, the participant can use LiveKit's data publishing features to send messages to other participants. If it is set to
false
, the participant will not be able to send such messages. If you have more questions or need further clarification, feel free to ask!
c
when I do await roomService.updateParticipant(room_name, do I have to pass in roomJoin as well?
t
No, you do not need to pass
roomJoin
when using
roomService.updateParticipant
in LiveKit. The method typically requires the room name, participant identity, and the fields you want to update (such as metadata or permissions). Here’s an example of the parameters you might pass:
Copy code
await roomService.updateParticipant(
    room_name,
    participant_identity,
    {
        metadata: "new_metadata",
        permission: {
            canPublish: true,
            canSubscribe: true
        }
    }
);
If you have specific fields to update, you only need to include those in the request. Let me know if you need further clarification! Sources: RoomServiceClient | LiveKit JS Server SDK - v2.9.7
c
if I dont pass in a certain field, will it retain its old value?
t
Yes, when using
updateParticipant
in LiveKit, fields that are not passed in the update will retain their old values. The update will only modify the fields you explicitly include in the request. For example, if you update only the
metadata
field, other fields like
permissions
will remain unchanged. If you have further questions or need clarification, feel free to ask! Sources: updateAttributes
c
I need help
t
I'm here to help! Could you please provide more details about the issue or question you're facing? This will help me assist you more effectively.
c
multi-channel audio if there are more than 2 participants in a livekit room.
t
Unfortunately, I couldn't find specific information about multi-channel audio support for more than 2 participants in a LiveKit room. However, LiveKit typically handles audio tracks for each participant individually, and you can manage these tracks programmatically. If you have a specific use case or need further assistance, feel free to provide more details, and I'll do my best to help!
c
when I join a livekit room,my AI agnet can only hear tracks published by other participant and not the joined particpant. why?
t
In LiveKit, participants typically do not subscribe to their own published tracks by default. This is likely why your AI agent cannot hear tracks published by the same participant. If you want the AI agent to process tracks from the same participant, you may need to explicitly configure the subscription settings or handle the audio data separately before publishing it to the room. If you need further assistance or have specific requirements, feel free to provide more details, and I'll do my best to help!
c
difference between AutoSubscribe.AUDIO_ONLY and AutoSubscribe.SUBSCRIBE_ALL?
t
The difference between
AutoSubscribe.AUDIO_ONLY
and
AutoSubscribe.SUBSCRIBE_ALL
in LiveKit is as follows: • `AutoSubscribe.AUDIO_ONLY`: This option subscribes only to audio tracks published by participants in the room. Video tracks will not be subscribed to automatically. • `AutoSubscribe.SUBSCRIBE_ALL`: This option subscribes to all tracks (both audio and video) published by participants in the room. If you have further questions or need clarification, feel free to ask! Sources: AutoSubscribe | LiveKit Agents
c
why is it that the AI agne tonly responds to one participant's tracks? await ctx.connect(auto_subscribe=AutoSubscribe.AUDIO_ONLY) # Wait for first user user_participant = await ctx.wait_for_participant()
t
The behavior you're observing might be due to the way the AI agent is configured to handle participants. In your code snippet, the line:
Copy code
user_participant = await ctx.wait_for_participant()
indicates that the agent is waiting for the first participant to join and then likely processing only that participant's tracks. If you want the AI agent to respond to tracks from multiple participants, you may need to modify the logic to handle all participants in the room, not just the first one. For example, you could iterate over all participants and subscribe to their tracks dynamically. If you need further assistance with implementation, feel free to ask!
c
wait for particpant but also when new participants jpin,. process those ofc
t
To handle both the first participant and any new participants who join later, you can set up an event listener or callback to process tracks from all participants dynamically. Here’s an example approach:
Copy code
await ctx.connect(auto_subscribe=AutoSubscribe.AUDIO_ONLY)

# Process the first participant
user_participant = await ctx.wait_for_participant()
process_participant(user_participant)

# Listen for new participants joining the room
async for participant in ctx.on_participant_joined():
    process_participant(participant)

def process_participant(participant):
    # Add logic to handle the participant's audio tracks
    print(f"Processing participant: {participant.identity}")
This way, you can handle the first participant and dynamically process any new participants who join the room. Let me know if you need further clarification or assistance!
c
tell me how to do on_participant_joined
t
Unfortunately, I couldn't find specific information on how to use
on_participant_joined
in LiveKit's Python SDK. However, in most event-driven systems, you would typically register a callback or listener for participant join events. Here’s a general example of how it might look:
Copy code
async def on_participant_joined(participant):
    print(f"Participant joined: {participant.identity}")
    # Add logic to process the participant's tracks

ctx.on_participant_joined = on_participant_joined
This is a conceptual example, and the actual implementation may vary depending on the SDK. If you need further assistance, feel free to ask or consult the LiveKit Python SDK documentation for event handling.
c
how to get received user transcript?
t
Unfortunately, I couldn't find specific information on how to get a received user's transcript in LiveKit. If you're using a speech-to-text service or similar functionality, you may need to integrate it with LiveKit by processing the audio tracks of participants and sending them to a transcription service. If you have more details about your setup or the tools you're using, I can provide more tailored guidance. Let me know how you'd like to proceed!
c
user_speech_committed gets triggered too late. how to make it get triggered earlier?
t
Unfortunately, I couldn't find specific information on how to make the
user_speech_committed
event trigger earlier in LiveKit. This event's timing might depend on internal configurations or thresholds for detecting speech activity. If you have access to any configuration settings related to speech detection or activity thresholds, you might be able to adjust them to make the event trigger sooner. Alternatively, you could implement a custom solution to detect speech activity earlier by processing audio tracks directly. If you need further assistance or have more details about your setup, feel free to share them, and I'll do my best to help!
c
where is the default region for livekit? virginia or california?
t
Unfortunately, I couldn't find specific information about the default region for LiveKit. The default region may depend on your account setup or the configuration of your LiveKit deployment. If you need to confirm the default region, I recommend checking your LiveKit project settings or contacting LiveKit support for clarification.
c
how to access room metadata in python? fill in code: async def entrypoint(ctx: JobContext): """ This function runs in a new process each time the agent is dispatched to a room. """ await ctx.connect(auto_subscribe=AutoSubscribe.AUDIO_ONLY) user_participant = await ctx.wait_for_participant()
t
To access room metadata in Python using LiveKit, you can use the
metadata
property of the room object. Here’s how you can modify your code to include accessing the room metadata:
Copy code
async def entrypoint(ctx: JobContext):
    """
    This function runs in a *new process* each time the agent
    is dispatched to a room.
    """
    # Connect to the room
    await ctx.connect(auto_subscribe=AutoSubscribe.AUDIO_ONLY)

    # Access room metadata
    room_metadata = ctx.room.metadata
    print(f"Room metadata: {room_metadata}")

    # Wait for the first participant
    user_participant = await ctx.wait_for_participant()
Notes: • The
metadata
property returns the metadata associated with the room as a string. • Room metadata can only be set using server APIs like
CreateRoom
or
UpdateRoomMetadata
. • To handle metadata changes dynamically, you can listen for the
RoomMetadataChanged
event. If you need further assistance, feel free to ask! Sources: livekit.rtc API documentation | Room metadata | LiveKit Docs
c
what is an alternative to setMicrophone?
in swift
t
I'm sorry, but I don't have the information you need at the moment. If you would like a member of the LiveKit team to respond, please ask your question in one of the other channels.
c
how to use
Copy code
AudioManager.shared.isLegacyMuteMode = true
?
hello?
I need help, livekit.
hi