diff --git a/lib/utils/speech-utils.js b/lib/utils/speech-utils.js
index d3707d4..42fb555 100644
--- a/lib/utils/speech-utils.js
+++ b/lib/utils/speech-utils.js
@@ -63,89 +63,57 @@ function capitalizeFirst(str) {
 }
 
 //https://github.com/soniox/soniox_examples/blob/master/speech_to_text/nodejs/soniox_async.js
-// soniox sdk is deplicated and nolonger work to validate api key.
+// soniox sdk is deprecated and no longer works to validate api key.
 const testSonioxStt = async(logger, credentials) => {
   const {api_key} = credentials;
-  const https = require('https');
+
+  // Helper function for Soniox API calls
+  const apiFetch = async(endpoint, options = {}) => {
+    const res = await fetch(`https://api.soniox.com${endpoint}`, {
+      ...options,
+      headers: {
+        'Authorization': `Bearer ${api_key}`,
+        ...options.headers
+      }
+    });
+    if (!res.ok) throw new Error(`HTTP ${res.status}: ${await res.text()}`);
+    return options.method === 'DELETE' ? null : res.json();
+  };
 
   try {
-    // Upload file using form-data with https module
+    // Upload file using form-data with buffer
     const FormData = require('form-data');
     const form = new FormData();
-    form.append('file', fs.createReadStream('data/test_audio.wav'));
+    const audioBuffer = fs.readFileSync('data/test_audio.wav');
+    form.append('file', audioBuffer, 'test_audio.wav');
 
-    const fileId = await new Promise((resolve, reject) => {
-      const req = https.request({
-        hostname: 'api.soniox.com',
-        path: '/v1/files',
-        method: 'POST',
-        headers: {
-          'Authorization': `Bearer ${api_key}`,
-          ...form.getHeaders()
-        }
-      }, (res) => {
-        let data = '';
-        res.on('data', (chunk) => data += chunk);
-        res.on('end', () => {
-          if (res.statusCode >= 400) {
-            reject(new Error(`HTTP ${res.statusCode}: ${data}`));
-          } else {
-            try {
-              const result = JSON.parse(data);
-              resolve(result.id);
-            } catch (e) {
-              reject(e);
-            }
-          }
-        });
-      });
-      req.on('error', reject);
-      form.pipe(req);
+    const { id: fileId } = await apiFetch('/v1/files', {
+      method: 'POST',
+      headers: form.getHeaders(),
+      body: form.getBuffer()
     });
 
     // Create transcription
-    const transcriptionRes = await fetch('https://api.soniox.com/v1/transcriptions', {
+    const { id: transcriptionId } = await apiFetch('/v1/transcriptions', {
       method: 'POST',
-      headers: {
-        'Authorization': `Bearer ${api_key}`,
-        'Content-Type': 'application/json'
-      },
+      headers: { 'Content-Type': 'application/json' },
       body: JSON.stringify({ model: 'stt-async-v3', file_id: fileId })
     });
 
-    if (!transcriptionRes.ok) throw new Error(`HTTP ${transcriptionRes.status}: ${await transcriptionRes.text()}`);
-    const { id: transcriptionId } = await transcriptionRes.json();
-
     // Wait for transcription to complete
     let attempts = 0;
     const maxAttempts = 30; // 30 seconds max wait
 
     while (attempts < maxAttempts) {
-      const statusRes = await fetch(`https://api.soniox.com/v1/transcriptions/${transcriptionId}`, {
-        headers: { 'Authorization': `Bearer ${api_key}` }
-      });
-      if (!statusRes.ok) throw new Error(`HTTP ${statusRes.status}: ${await statusRes.text()}`);
-      const status = await statusRes.json();
+      const status = await apiFetch(`/v1/transcriptions/${transcriptionId}`);
 
       if (status.status === 'completed') {
         // Get the transcript
-        const transcriptRes = await fetch(`https://api.soniox.com/v1/transcriptions/${transcriptionId}/transcript`, {
-          headers: { 'Authorization': `Bearer ${api_key}` }
-        });
-
-        if (!transcriptRes.ok) throw new Error(`HTTP ${transcriptRes.status}: ${await transcriptRes.text()}`);
-        const transcript = await transcriptRes.json();
+        const transcript = await apiFetch(`/v1/transcriptions/${transcriptionId}/transcript`);
 
         // Clean up
-        await fetch(`https://api.soniox.com/v1/files/${fileId}`, {
-          method: 'DELETE',
-          headers: { 'Authorization': `Bearer ${api_key}` }
-        });
-
-        await fetch(`https://api.soniox.com/v1/transcriptions/${transcriptionId}`, {
-          method: 'DELETE',
-          headers: { 'Authorization': `Bearer ${api_key}` }
-        });
+        await apiFetch(`/v1/files/${fileId}`, { method: 'DELETE' });
+        await apiFetch(`/v1/transcriptions/${transcriptionId}`, { method: 'DELETE' });
 
         return transcript;
       } else if (status.status === 'error') {
@@ -158,15 +126,8 @@ const testSonioxStt = async(logger, credentials) => {
     }
 
     // Timeout reached - clean up resources before throwing error
-    await fetch(`https://api.soniox.com/v1/files/${fileId}`, {
-      method: 'DELETE',
-      headers: { 'Authorization': `Bearer ${api_key}` }
-    }).catch(() => {}); // Ignore cleanup errors
-
-    await fetch(`https://api.soniox.com/v1/transcriptions/${transcriptionId}`, {
-      method: 'DELETE',
-      headers: { 'Authorization': `Bearer ${api_key}` }
-    }).catch(() => {}); // Ignore cleanup errors
+    await apiFetch(`/v1/files/${fileId}`, { method: 'DELETE' }).catch(() => {});
+    await apiFetch(`/v1/transcriptions/${transcriptionId}`, { method: 'DELETE' }).catch(() => {});
 
     throw new Error('Transcription timeout after 30 seconds');
   } catch (error) {