Unmute STT Bridge
curl --request POST \
--url https://api.slng.ai/v1/bridges/unmute/stt/{model_variant} \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: multipart/form-data' \
--form audio='@example-file' \
--form language=enimport requests
url = "https://api.slng.ai/v1/bridges/unmute/stt/{model_variant}"
files = { "audio": ("example-file", open("example-file", "rb")) }
payload = { "language": "en" }
headers = {"Authorization": "Bearer <token>"}
response = requests.post(url, data=payload, files=files, headers=headers)
print(response.text)const form = new FormData();
form.append('audio', '<binary>');
form.append('language', 'en');
const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};
options.body = form;
fetch('https://api.slng.ai/v1/bridges/unmute/stt/{model_variant}', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.slng.ai/v1/bridges/unmute/stt/{model_variant}",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"audio\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<binary>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"language\"\r\n\r\nen\r\n-----011000010111000001101001--",
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: multipart/form-data"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.slng.ai/v1/bridges/unmute/stt/{model_variant}"
payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"audio\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<binary>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"language\"\r\n\r\nen\r\n-----011000010111000001101001--")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.slng.ai/v1/bridges/unmute/stt/{model_variant}")
.header("Authorization", "Bearer <token>")
.body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"audio\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<binary>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"language\"\r\n\r\nen\r\n-----011000010111000001101001--")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.slng.ai/v1/bridges/unmute/stt/{model_variant}")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"audio\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<binary>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"language\"\r\n\r\nen\r\n-----011000010111000001101001--"
response = http.request(request)
puts response.read_body{
"type": "transcription",
"is_final": true,
"alternatives": [
{
"confidence": 123,
"transcript": "<string>"
}
],
"channel": 123,
"language": "<string>"
}{
"error": "Validation error",
"details": "Missing required field: text"
}{
"error": "TTS service error",
"status": 400,
"details": "Rime TTS API error: 400 Bad Request - Invalid argument: Invalid speaker: aurelie"
}{
"error": "<string>",
"message": "<string>",
"statusCode": 123
}{
"error": "Service error",
"details": "Internal processing error"
}{
"error": "TTS service error",
"status": 400,
"details": "Rime TTS API error: 400 Bad Request - Invalid argument: Invalid speaker: aurelie"
}Unified STT
Unified STT
Transcribe audio via SLNG’s native WebSocket protocol bridge. The model_variant path parameter specifies the target STT model (e.g., deepgram/nova:3, slng/deepgram/nova:3-en).
POST
/
v1
/
bridges
/
unmute
/
stt
/
{model_variant}
Unmute STT Bridge
curl --request POST \
--url https://api.slng.ai/v1/bridges/unmute/stt/{model_variant} \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: multipart/form-data' \
--form audio='@example-file' \
--form language=enimport requests
url = "https://api.slng.ai/v1/bridges/unmute/stt/{model_variant}"
files = { "audio": ("example-file", open("example-file", "rb")) }
payload = { "language": "en" }
headers = {"Authorization": "Bearer <token>"}
response = requests.post(url, data=payload, files=files, headers=headers)
print(response.text)const form = new FormData();
form.append('audio', '<binary>');
form.append('language', 'en');
const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};
options.body = form;
fetch('https://api.slng.ai/v1/bridges/unmute/stt/{model_variant}', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.slng.ai/v1/bridges/unmute/stt/{model_variant}",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"audio\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<binary>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"language\"\r\n\r\nen\r\n-----011000010111000001101001--",
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: multipart/form-data"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.slng.ai/v1/bridges/unmute/stt/{model_variant}"
payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"audio\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<binary>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"language\"\r\n\r\nen\r\n-----011000010111000001101001--")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.slng.ai/v1/bridges/unmute/stt/{model_variant}")
.header("Authorization", "Bearer <token>")
.body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"audio\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<binary>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"language\"\r\n\r\nen\r\n-----011000010111000001101001--")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.slng.ai/v1/bridges/unmute/stt/{model_variant}")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"audio\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<binary>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"language\"\r\n\r\nen\r\n-----011000010111000001101001--"
response = http.request(request)
puts response.read_body{
"type": "transcription",
"is_final": true,
"alternatives": [
{
"confidence": 123,
"transcript": "<string>"
}
],
"channel": 123,
"language": "<string>"
}{
"error": "Validation error",
"details": "Missing required field: text"
}{
"error": "TTS service error",
"status": 400,
"details": "Rime TTS API error: 400 Bad Request - Invalid argument: Invalid speaker: aurelie"
}{
"error": "<string>",
"message": "<string>",
"statusCode": 123
}{
"error": "Service error",
"details": "Internal processing error"
}{
"error": "TTS service error",
"status": 400,
"details": "Rime TTS API error: 400 Bad Request - Invalid argument: Invalid speaker: aurelie"
}Authorizations
API key issued by SLNG. Pass as Authorization: Bearer <token>.
Path Parameters
Target STT model. Must support WebSocket streaming with final_transcript.
Available options:
deepgram/nova:3, deepgram/nova:3-medical, gradium/stt:default, reson8/reson8stt:v1, sarvam/saaras:v3, slng/deepgram/nova:3-en, slng/deepgram/nova:3-hi, slng/deepgram/nova:3-id, slng/deepgram/nova:3-kn, slng/deepgram/nova:3-mr, slng/deepgram/nova:3-te, slng/speechmatics/realtime:v2, soniox/speech-ai:rt-v5 Body
multipart/form-dataapplication/json
Unmute STT request. Provide either audio (multipart upload) or url (publicly accessible HTTPS URL).
Audio file (multipart) or base64-encoded audio (JSON).
Publicly accessible audio URL.
Example:
"https://docs.slng.ai/audio/hello.wav"
Language code for recognition.
Audio sample rate in Hz.
Available options:
8000, 16000, 22050, 24000, 32000, 48000 Audio encoding format.
Available options:
linear16, mp3, opus Enable voice activity detection.
Enable partial transcription results.
Response
Transcription successful.
Cognigy STT transcription response.