Guide

Fix: No Sound / Text-to-Speech (TTS) Issues

2026-01-282 min read

If you can't hear pronunciations in VocaTrace, your device might be missing the necessary voice data. Don't worry - this is a common issue and easy to fix!

Follow the steps below for your device.

Android

For Android users, VocaTrace relies on Google Speech Services.

Step 1: Update the Speech Engine

First, ensure that the Google Recognition & Synthesis app is installed and up-to-date.

Quick Fix

If you just updated or installed it, close and reopen VocaTrace to see if that solved it!

Step 2: Check Language Packs

If it's still silent, follow these steps to download the language manually.

Note: Menus may vary slightly by phone model (e.g., Samsung vs. Pixel).

  1. Open Settings.
  2. Search for "Text-to-speech" in the settings search bar (this is the fastest way).
    • Or go to: Accessibility > Text-to-speech output
    • On Samsung: Accessibility > Talkback > Settings > Text-to-speech
  3. Tap the Gear Icon ⚙️ next to "Preferred engine" (ensure "Speech Services by Google" is selected).
  4. Tap Install voice data.
  5. Find your target language and tap the Download icon ⬇️ next to it.
  6. (Optional) If asked, initiate the download.

iOS (iPhone / iPad)

iPhones use system-level voices. If a voice sounds robotic or is missing, you can download a high-quality version in Settings.

  1. Open Settings > Accessibility.
  2. Tap Read & Speak > Voices.
  3. Choose the language you are learning (e.g., Japanese).
  4. Select a voice (like Kyoko or Siri) and tap the Cloud Icon ☁️ to download.

Pro Tip

Look for Enhanced or Premium voices in the list. They sound much more natural than the standard ones!

Still No Sound?

  • Check Media Volume: Make sure your "Media" volume slider is up.
  • Silent Mode: On older iPhones, the side switch might mute some app sounds.
  • Restart VocaTrace: After downloading new voices, force-close the app and open it again to refresh the connection.

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