diff --git a/lib/synth-audio.js b/lib/synth-audio.js
index 894e6df..7b64f24 100644
--- a/lib/synth-audio.js
+++ b/lib/synth-audio.js
@@ -141,7 +141,7 @@ async function synthAudio(client, logger, stats, { account_sid,
   let filePath;
   if (['nuance', 'nvidia'].includes(vendor) ||
     (
-      process.env.JAMBONES_TTS_TRIM_SILENCE &&
+      (process.env.JAMBONES_TTS_TRIM_SILENCE || !process.env.JAMBONES_DISABLE_TTS_STREAMING) &&
       ['microsoft', 'azure'].includes(vendor)
     ) ||
     (