diff --git a/packages/api/src/routers/text_to_speech.ts b/packages/api/src/routers/text_to_speech.ts
index dab71ac4e..8a89a3202 100644
--- a/packages/api/src/routers/text_to_speech.ts
+++ b/packages/api/src/routers/text_to_speech.ts
@@ -13,6 +13,7 @@ import { shouldSynthesize } from '../services/speech'
 import { readPushSubscription } from '../datalayer/pubsub'
 import { AppDataSource } from '../server'
 import { enqueueTextToSpeech } from '../utils/createTask'
+import { UserPersonalization } from '../entity/user_personalization'
 
 const logger = buildLogger('app.dispatch')
 
@@ -56,12 +57,15 @@ export function textToSpeechRouter() {
       // checks if this page needs to be synthesized automatically
       if (await shouldSynthesize(userId, page)) {
         logger.info('page needs to be synthesized')
+        const userPersonalization = await getRepository(
+          UserPersonalization
+        ).findOneBy({ user: { id: userId } })
         // initialize state
         const speech = await getRepository(Speech).save({
           user: { id: userId },
           elasticPageId: id,
           state: SpeechState.INITIALIZED,
-          voice: 'en-US-JennyNeural',
+          voice: userPersonalization?.speechVoice || 'Harrison',
         })
         // enqueue a task to convert text to speech
         const taskName = await enqueueTextToSpeech({
@@ -70,6 +74,7 @@ export function textToSpeechRouter() {
           text: page.content,
           voice: speech.voice,
           priority: 'low',
+          isUltraRealisticVoice: true,
         })
         logger.info('Start Text to speech task', { taskName })
         return res.status(202).send('Text to speech task started')