Voice cloning and timed narration for iPhone, iPad, and Mac

SpeechTrack: Live Voice Clone

Your voice. Precisely timed.

Create an English voice from a short recording, turn your script into scheduled speech, and export one finished audio track. Voice creation and generation happen on your device.

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5–15 secondsStart with a short, clear English voice sample.

On your deviceCreate voices and generate narration without a cloud voice service.

One audio trackKeep your speech and carefully placed pauses together.

Make the narration your own

Record 5–15 seconds of clear English speech or import an audio file, then create a voice you can use in your script segments. Use your own voice or one you have explicit permission to clone. Apple system voices are also available, with languages and voice choices depending on what is installed on your device.

SpeechTrack is built for presentation rehearsals, product demos, classroom lessons, training, and onboarding. Reference recordings, voice profiles, scripts, and generated audio stay on your device; no account is required.

Voice cloning and timed narration

How voice cloning works and how to make a presentation in your own voice

Explainer and tutorial · 6:41. Learn how a voice sample becomes new speech, then build timed presentation narration with the Mac command-line tool.

Add your own voice to a screen recording Mac command-line tutorial · 0:50. Time narration to the actions in a screen capture, then combine the audio and video.
Make an audio quiz with time to answer Mac command-line tutorial · 1:15. Place questions, thinking pauses, and answers on one timeline for study or training.

Inside SpeechTrack: Live Voice Clone

SpeechTrack My Voices screen with recording and audio import for English voice cloning — Create a voice from a recording or an imported audio file.

SpeechTrack iPhone timeline with timed narration segments, CSV controls, and audio export — Place each spoken segment at an exact start time.

SpeechTrack project library with demo, training, classroom, and onboarding scripts — Keep narration projects organized and ready to reuse.

SpeechTrack native Mac workspace with project sidebar, narration segments, and output settings — The native Mac workspace brings projects, script segments, voice settings, and export controls into one view. Available on supported Apple-silicon Macs.

Control what is said and when

Build a track that follows your script.

Exact timing and pausesSet start times and leading or trailing silence for each segment. Choose whether overlapping speech mixes or moves into sequence.

Voices for each segmentUse a cloned English voice or a local Apple system voice, and adjust speech speed to fit the delivery.

CSV and project versionsImport and export segment lists as CSV. Save project versions before changing timing or rewriting your script.

Preview and exportListen before sharing, then export a single M4A, WAV, or AIFF file when supported by your device.

From a voice sample to a finished track

1. Choose your voiceRecord or import a short English sample to create a voice, or select an installed Apple system voice.

2. Build your scriptCreate a project and add spoken segments, or bring in a segment list from a CSV file.

3. Set the timingChoose start times, adjust speech speed, and add pauses where your presentation needs room.

4. Listen and sharePreview the result, make any edits, and export the complete track as one audio file.

Start creating with SpeechTrack.

Download SpeechTrack for free and start building timed narration projects on your device.

Ready for your next presentation

Turn your script into a track you can use again.

Build locally on iPhone, iPad, or a supported Apple-silicon Mac, then take your finished narration wherever you need it.