Upgrade to WebSocket for real-time streaming

curl --request GET \
  --url http://{device-ip}:{device-port}/audio-analytics/v1/api/stream

const options = {method: 'GET'};

fetch('http://{device-ip}:{device-port}/audio-analytics/v1/api/stream', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_PORT => "62437",
  CURLOPT_URL => "http://{device-ip}:{device-port}/audio-analytics/v1/api/stream",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "http://{device-ip}:{device-port}/audio-analytics/v1/api/stream"

	req, _ := http.NewRequest("GET", url, nil)

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("http://{device-ip}:{device-port}/audio-analytics/v1/api/stream")

http = Net::HTTP.new(url.host, url.port)

request = Net::HTTP::Get.new(url)

response = http.request(request)
puts response.read_body

{
  "error": {
    "message": "Invalid request, missing 'file' parameter",
    "type": "invalid_request_error",
    "param": "file",
    "code": null
  }
}

{
  "error": {
    "message": "Invalid request, missing 'file' parameter",
    "type": "invalid_request_error",
    "param": "file",
    "code": null
  }
}

Upgrade to WebSocket for real-time streaming

Upgrades the HTTP connection to a WebSocket for real-time audio streaming.

Usage

Create a transcription session with stream=true
Connect to this WebSocket endpoint
Send audio chunks as JSON messages
Receive transcription results in real-time

Client → Server (Audio Chunks)

{
  "message_type": "transcriptions_session_audio",
  "message_source": "audio_analytics_api",
  "session_id": "session123",
  "type": "input_audio",
  "data": "<BASE64_ENCODED_AUDIO>"
}

Server → Client (Event Sequence per Utterance)

1. Speech detected:

{ "session_id": "session123", "type": "transcript.event", "state": "speech_start" }

2. Partial transcription (zero or more):

{ "session_id": "session123", "text": "Partial transcription text", "language": "en", "type": "transcript.text.delta", "state": "transcription" }

3. End of speech detected:

{ "session_id": "session123", "type": "transcript.event", "state": "speech_end" }

4. Final transcription:

{ "session_id": "session123", "text": "Complete transcription text.", "language": "en", "type": "transcript.text.done", "state": "transcription" }

After step 4 the engine resets and listens for the next utterance. The session stays open until the client calls /transcriptions/close.

Connection

Protocol: WebSocket (ws:// or wss://)
URL: ws://<host>:8085/stream
Requires prior session creation via /transcriptions/create

GET

stream

Upgrade to WebSocket for real-time streaming

curl --request GET \
  --url http://{device-ip}:{device-port}/audio-analytics/v1/api/stream

const options = {method: 'GET'};

fetch('http://{device-ip}:{device-port}/audio-analytics/v1/api/stream', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_PORT => "62437",
  CURLOPT_URL => "http://{device-ip}:{device-port}/audio-analytics/v1/api/stream",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "http://{device-ip}:{device-port}/audio-analytics/v1/api/stream"

	req, _ := http.NewRequest("GET", url, nil)

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("http://{device-ip}:{device-port}/audio-analytics/v1/api/stream")

http = Net::HTTP.new(url.host, url.port)

request = Net::HTTP::Get.new(url)

response = http.request(request)
puts response.read_body

{
  "error": {
    "message": "Invalid request, missing 'file' parameter",
    "type": "invalid_request_error",
    "param": "file",
    "code": null
  }
}

{
  "error": {
    "message": "Invalid request, missing 'file' parameter",
    "type": "invalid_request_error",
    "param": "file",
    "code": null
  }
}

Response

Switching Protocols - WebSocket connection established