diff --git a/packages/text-to-speech/src/htmlToSsml.ts b/packages/text-to-speech/src/htmlToSsml.ts
index 9999e9f24..817049114 100644
--- a/packages/text-to-speech/src/htmlToSsml.ts
+++ b/packages/text-to-speech/src/htmlToSsml.ts
@@ -75,7 +75,7 @@ const TOP_LEVEL_TAGS = [
 
 function parseDomTree(pageNode: Element) {
   if (!pageNode || pageNode.childNodes.length == 0) {
-    console.log(' no child nodes found')
+    console.log('no child nodes found')
     return []
   }
 
@@ -279,10 +279,15 @@ const textToUtterance = ({
     try {
       textWithWordOffset = htmlToText(text, { wordwrap: false })
     } catch (err) {
-      console.error('Unable to convert HTML to text', { text, err })
+      console.error(
+        'Unable to convert HTML to text, html:',
+        text,
+        ', error:',
+        err
+      )
       textWithWordOffset =
         parseHTML(text).document.documentElement.textContent ?? text
-      console.debug('Converted HTML to text', { textWithWordOffset })
+      console.info('Converted HTML to text:', textWithWordOffset)
     }
   }
   const wordCount = tokenizer.tokenize(textWithWordOffset).length
@@ -297,7 +302,7 @@ const textToUtterance = ({
 
 export const htmlToSpeechFile = (htmlInput: HtmlInput): SpeechFile => {
   const { title, content, options } = htmlInput
-  console.debug('creating speech file with options', options)
+  console.log('creating speech file with options:', options)
 
   const dom = parseHTML(content)
   const body = dom.document.querySelector('#readability-page-1')
diff --git a/packages/text-to-speech/src/index.ts b/packages/text-to-speech/src/index.ts
index 63f9a6631..bcc124a39 100644
--- a/packages/text-to-speech/src/index.ts
+++ b/packages/text-to-speech/src/index.ts
@@ -75,7 +75,7 @@ const updateSpeech = async (
 
 export const textToSpeechHandler = Sentry.GCPFunction.wrapHttpFunction(
   async (req, res) => {
-    console.info('Text to speech request received')
+    console.info('Text to speech request body:', req.body)
     const token = req.query.token as string
     if (!process.env.JWT_SECRET) {
       console.error('JWT_SECRET not exists')
@@ -84,7 +84,7 @@ export const textToSpeechHandler = Sentry.GCPFunction.wrapHttpFunction(
     try {
       jwt.verify(token, process.env.JWT_SECRET)
     } catch (e) {
-      console.error(e)
+      console.error('Authentication error:', e)
       return res.status(200).send('UNAUTHENTICATED')
     }
     // validate input
@@ -92,7 +92,7 @@ export const textToSpeechHandler = Sentry.GCPFunction.wrapHttpFunction(
     const id = input.id
     const bucket = input.bucket
     if (!id || !bucket) {
-      return res.status(200).send('Invalid data')
+      return res.status(200).send('INVALID_INPUT')
     }
     try {
       // audio file to be saved in GCS
@@ -133,7 +133,7 @@ export const textToSpeechHandler = Sentry.GCPFunction.wrapHttpFunction(
       console.info('Text to speech cloud function completed')
       res.send('OK')
     } catch (e) {
-      console.error('Text to speech cloud function error', e)
+      console.error('Text to speech cloud function error:', e)
       await updateSpeech(id, token, 'FAILED')
       return res.status(500).send({ errorCodes: 'SYNTHESIZER_ERROR' })
     }
@@ -142,20 +142,20 @@ export const textToSpeechHandler = Sentry.GCPFunction.wrapHttpFunction(
 
 export const textToSpeechStreamingHandler = Sentry.GCPFunction.wrapHttpFunction(
   async (req, res) => {
-    console.debug('Text to speech steaming request', req)
+    console.log('Text to speech steaming request body:', req.body)
     if (!process.env.JWT_SECRET) {
       console.error('JWT_SECRET not exists')
       return res.status(500).send({ errorCodes: 'JWT_SECRET_NOT_EXISTS' })
     }
     const token = (req.query.token || req.headers.authorization) as string
     if (!token) {
-      return res.status(401).send({ errorCode: 'UNAUTHORIZED' })
+      return res.status(401).send({ errorCode: 'INVALID_TOKEN' })
     }
     try {
       jwt.verify(token, process.env.JWT_SECRET)
     } catch (e) {
-      console.error(e)
-      return res.status(401).send({ errorCode: 'UNAUTHORIZED' })
+      console.error('Authentication error:', e)
+      return res.status(401).send({ errorCode: 'UNAUTHENTICATED' })
     }
 
     try {
@@ -174,7 +174,7 @@ export const textToSpeechStreamingHandler = Sentry.GCPFunction.wrapHttpFunction(
         speechMarks,
       })
     } catch (e) {
-      console.error('Text to speech streaming error', e)
+      console.error('Text to speech streaming error:', e)
       return res.status(500).send({ errorCodes: 'SYNTHESIZER_ERROR' })
     }
   }
diff --git a/packages/text-to-speech/src/textToSpeech.ts b/packages/text-to-speech/src/textToSpeech.ts
index 05df7807b..27508175e 100644
--- a/packages/text-to-speech/src/textToSpeech.ts
+++ b/packages/text-to-speech/src/textToSpeech.ts
@@ -81,16 +81,11 @@ export const synthesizeTextToSpeech = async (
     if (cancellationDetails.reason === CancellationReason.Error) {
       str += ': ' + e.result.errorDetails
     }
-    console.error(str)
+    console.log(str)
   }
 
   // The unit of e.audioOffset is tick (1 tick = 100 nanoseconds), divide by 10,000 to convert to milliseconds.
   synthesizer.wordBoundary = (s, e) => {
-    console.debug(
-      `(word boundary) Audio offset: ${e.audioOffset / 10000}ms, text: ${
-        e.text
-      }`
-    )
     speechMarks.push({
       word: e.text,
       time: (timeOffset + e.audioOffset) / 10000,
@@ -101,11 +96,6 @@ export const synthesizeTextToSpeech = async (
   }
 
   synthesizer.bookmarkReached = (s, e) => {
-    console.debug(
-      `(bookmark reached) Audio offset: ${
-        e.audioOffset / 10000
-      }ms, bookmark text: ${e.text}`
-    )
     speechMarks.push({
       word: e.text,
       time: (timeOffset + e.audioOffset) / 10000,
@@ -152,17 +142,19 @@ export const synthesizeTextToSpeech = async (
     wordOffset = -start.length
     const ssml = `${start}${input.text}${endSsml()}`
     const result = await speakSsmlAsyncPromise(ssml)
+    if (result.reason === ResultReason.Canceled) {
+      throw new Error(result.errorDetails)
+    }
     return {
       audioData: Buffer.from(result.audioData),
       speechMarks,
     }
   } catch (error) {
-    console.error('synthesis error', error)
+    console.error('synthesis error:', error)
     throw error
   } finally {
-    console.debug('closing synthesizer')
     audioStream?.end()
     synthesizer.close()
-    console.debug('synthesizer closed')
+    console.log('synthesizer closed')
   }
 }