From 490d23a703c536d8f27943b687b21550ced0224a Mon Sep 17 00:00:00 2001
From: Hoan HL <hoan.h.luu@drachtio.org>
Date: Wed, 14 Jan 2026 15:46:29 +0700
Subject: [PATCH] wip

---
 lib/synth-audio.js | 2 +-
 test/synth.js      | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/synth-audio.js b/lib/synth-audio.js
index 1ae9244..8597b51 100644
--- a/lib/synth-audio.js
+++ b/lib/synth-audio.js
@@ -435,7 +435,7 @@ const synthGoogle = async(logger, {
     }
 
     let params = '{';
-    params += `credentials=${JSON.stringify(credentials)}`;
+    params += `credentials=${Buffer.from(JSON.stringify(credentials)).toString('base64')}`;
     params += `,playback_id=${key}`;
     params += ',vendor=google';
     params += `,voice=${voice}`;
diff --git a/test/synth.js b/test/synth.js
index e6723cb..7b2cc12 100644
--- a/test/synth.js
+++ b/test/synth.js
@@ -306,6 +306,9 @@ test('Google TTS streaming tests (!JAMBONES_DISABLE_TTS_STREAMING)', async(t) =>
     t.ok(result.filePath.includes('vendor=google'), 'Standard voice streaming path contains vendor=google');
     t.ok(result.filePath.includes('use_live_api=0'), 'Standard voice uses use_live_api=0');
     t.ok(result.filePath.includes('voice=en-US-Wavenet-D'), 'Standard voice streaming path contains voice');
+    // Verify credentials are base64 encoded (no raw JSON braces that would break FreeSWitch parsing)
+    t.ok(result.filePath.includes('credentials='), 'Standard voice streaming path contains credentials');
+    t.ok(!result.filePath.includes('credentials={'), 'Credentials are not raw JSON (base64 encoded)');
 
     // Test 2: HD voice streaming (use_live_api=1)
     result = await synthAudio(stats, {