AI voice-over or your own voice: how to choose for your channel

To choose between an AI voice-over and your own voice, think about what holds your channel up. If it rests on your judgement and personality, or you want the audience to recognise you, record it yourself. If what matters most is consistency (many videos with the same tone) and you cannot or do not want to record every week, a well-chosen synthetic voice works. In both cases there is one line you do not cross: do not imitate or clone another person's voice without their permission.

Five criteria for deciding

1. Identity. Is the channel a person or a format? An opinion channel or one based on your own experience calls for your voice; a channel of curiosities or compilations can work with a steady narrator.
2. Consistency. The audience gets used to a voice. Changing narrator every few videos breaks the feeling of a channel. Choose one and stick with it.
3. Time and corrections. Recording requires a quiet place and repeated takes. With a synthetic voice, correcting a sentence means generating that segment again; with your voice, it means recording it again.
4. Language and pronunciation. With a synthetic voice, check above all proper names, acronyms, figures and foreign words. If your subject is full of them, test before deciding.
5. Rights. Your voice is yours. A synthetic voice comes with the terms of use of whoever offers it, and someone else's only with their permission.

It does not have to be a decision for ever: you can start with a synthetic voice while you define the format and switch to your own voice once you are clear about it, or the other way round.

Your own voice versus an AI voice

Aspect	Your voice	AI voice
Personality	Unique and recognisable	Correct, shared with other channels that use the same narrator
Consistency	Depends on how you feel and where you record	Very stable between videos
Correcting a sentence	Re-record the segment	Generate the segment again
Pronunciation	You control it	Needs checking on names, acronyms and figures
AI disclosure on YouTube	Does not apply to your recorded voice	Depends on whether the content looks real (see below)

Another person's voice is not yours to borrow

Imitating with AI the voice of a celebrity, a well-known broadcaster or anyone else without their permission is not a shortcut: it can bring you legal problems and problems with the platform.

• In Spain, Ley Orgánica 1/1982, of 5 May (the Spanish Organic Law on civil protection of the right to honour, personal and family privacy and one's own image) treats the use of a person's name, voice or image for advertising, commercial or similar purposes as unlawful interference.
• The same law says there is no unlawful interference when the rights holder has given express consent, and that this consent can be revoked at any time, although any damages caused will have to be compensated where applicable.
• YouTube's privacy guidelines treat using AI or other tools to alter or generate someone's voice without their permission as a privacy violation, and the person affected can request the removal of synthetic content that realistically imitates their appearance or voice.

If you are going to work with another person's voice (a hired voice artist, a collaborator) put in writing what they authorise and for what. How to word that permission depends on the case: consult a professional.

What YouTube says about synthetic voices

YouTube's help on AI-generated content distinguishes two situations that affect the voice:

• Requires the disclosure: making it look as though a real person says something they have not said.
• Does not require the disclosure: cloning your own voice to create voice-overs or dubbing, or improving the quality of the voice or audio.

For everything else, the page's general rule is to disclose the use of AI if the content is realistic or has been significantly altered. We explain it with examples in altered or synthetic content on YouTube. If your channel is one that does not show a face, there are more ideas in how to have a YouTube channel without showing your face.

If you record your voice: how to do it well

• A small place with soft furnishings (curtains, a sofa, a wardrobe full of clothes) sounds better than a large, empty room.
• Always the same distance from the microphone, a few centimetres to a hand's span, and the same input level in every session.
• Record by scene or by paragraph, not the whole video at once: if you change a sentence, you re-record only that piece.
• Read the final text, not a draft. If the script changes afterwards, the voice and the subtitles stop matching.
• Use a teleprompter or the text in large type on screen so you do not look down at paper and you keep your pace.
• Listen before saving: loud breaths, background noise or a stumbled word are better fixed by repeating the take than by editing.

If you use an AI voice: how to get the most from it

• Choose a narrator and stay with them. It is your channel's voice.
• Write so that it reads well. Short sentences, figures written the way you want them to sound and no ambiguous abbreviations. There are more guidelines in how to write a script for YouTube.
• Listen to each segment before editing it in, especially proper names.
• Check the terms of use of the voice service: what it allows you to do with the audio and whether it permits commercial use.
• Do not ask it to imitate anyone. Neither by name nor with audio samples of another person.

Both options in the Estudio de Canales

In the Estudio de Canales the voice is set per scene, and in each one you choose:

• AI voice, with Google's Cloud Text-to-Speech: Gemini TTS and Chirp 3 HD models, with several narrators to choose from.
• Your own voice: you upload the scene's recording as WAV, MP3, M4A, OGG or WEBM, or record it in the browser with a teleprompter that shows you the text in large type.

The real length of each scene's audio is what sets the timing in the edit, and your recording is tied to the text you narrated: if the narration changes afterwards, the review asks you to record it again. The studio does not create avatars or clone other people's voices: the voice is that of an AI narrator or your own, recorded by you.

Sources consulted

Checked on 9 October 2026. We link to the original source so that you can consult the current text.

• Ley Orgánica 1/1982, de 5 de mayo, de protección civil del derecho al honor, a la intimidad personal y familiar y a la propia imagen (texto consolidado). BOE.
• Directrices de privacidad de YouTube. YouTube (Google LLC) · Centro de Ayuda.
• Avisar sobre el uso de contenido generado por IA. YouTube (Google LLC) · Centro de Ayuda.