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Eleven v3 アルファのご紹介
v3を試すLearn how to create professional-grade voice clones with ElevenLabs using these 7 essential tips.
Voice cloning has evolved from sci-fi curiosity to production staple. Whether you’re localizing a game, building a branded voice, or producing audiobooks at scale, a high-quality AI voice can streamline workflows and expand creative reach.
ElevenLabs Text to Speech technology makes it possible to achieve studio-grade results without a machine-learning background. But even the best model depends on disciplined inputs.
In generative audio, "garbage in, garbage out" is doubly important. Poor training data limits audio quality, and flawed prompts lead to unsatisfactory results even with well-trained models.
High-quality training data and precise prompts are essential for good generative audio outputs, as flawed input at either stage significantly compromises the final result.
Requirement | Why it matters |
---|---|
Quiet, treated room (no HVAC, pets, traffic) | Model learns background noise as part of the voice |
Cardioid condenser or broadcast dynamic mic | Off-axis rejection and low self-noise |
44.1 kHz, 16-bit (or better) mono WAV | Matches ingestion spec and preserves fidelity |
Pop filter / windscreen | Reduces plosives and low-end rumble |
Flat EQ, no compression | Preserves natural dynamics |
Always record a short room tone first. If your DAW shows visible noise, fix it before reading a single line.
ElevenLabs has the capability to replicate the nuanced details of human speech, including emotion, pacing, and prosody, but the quality of this reproduction is directly dependent on the presence and variation of these elements within the audio data used to train the model.
In other words, the AI can only effectively recreate what it has been shown during the training process. If the dataset lacks expressive variations or contains flat, monotonous speech, the resulting voice clone will likely reflect those same qualities.
Include:
Insert short silences (0.3–0.5s) between lines to teach natural pause behavior. Avoid vocal fry or throat clearing unless you want it replicated.
For character work, record multiple “mood passes” (e.g., calm, excited, distressed) to give the Style slider something real to interpolate.
After recording:
The goal: a dataset that already sounds ready for release. That quality will propagate to every output.
When I recorded my first Professional Voice Clone I gave it a number of sound files recorded in different locations, thinking voice is voice. For the final version I recorded it all in my home office, reading from the same script. It still wasn't perfect but it is much better than the instant voice clone.
Ryan Morrison Professional Voice Clone (PVC)
Ryan Morrison Instant Voice Clone (IVC)
Switching mic chains mid-recording confuses the model.
For multi-session projects:
To achieve the desired balance between speed and quality in your voice clone, it's important to provide an appropriate amount of training data. The following table provides guidelines for data length, based on the intended application.
Use Case | Minimum | Sweet Spot | Why |
---|---|---|---|
Quick demo / scratch track | 2–3 min | 5 min | Fast iteration |
YouTube / explainer videos | 5 min | 10–15 min | Smooth cadence, good style range |
Audiobooks / podcast host | 10 min | 20–30 min | Natural inflection over hours |
Multilingual brand or character | 15 min | 30–45 min per language | Cross-language continuity |
More than ~60 minutes can create diminishing returns. For nuanced needs, build sub-clones tuned to accent, emotion, or age.
To achieve the best balance of speed and quality in your voice clone, it's important to provide the right amount of training data. The table below outlines recommended data lengths based on how you intend to use the voice.
Setting | Effect | Typical Range |
---|---|---|
Stability | Lower = more variation; higher = consistent delivery | 0.4–0.7 for narration; 0.2–0.4 for dialog |
Similarity Boost | Controls how strictly timbre matches training audio | ≥ 0.75 for branded voices |
Style Exaggeration | Amplifies emotional cues in the dataset | 0.1 for subtle; 0.3–0.5 for expressive |
Accent / Latent Channels | Advanced: blends multiple voices or traits | Use for custom hybrid personas |
Pro tip: Save a “Gold Preset” once tuned. Apply it in bulk for chapter reads or commercial spots.
Narration test: Paste a 500-word script with names, numbers, and dialogue. Listen for pacing or pronunciation issues.
Dialog test: Alternate clones in a chatbot or game engine. Evaluate timing and emotional contrast.
Multilingual test: For bilingual voices, run mixed-language lines. Assess smoothness in code-switching.
Play output at different LUFS targets to catch any mastering-stage artifacts. Maintain a feedback log—small dataset tweaks often outperform big setting changes.
Naming: Use [Project]_[Actor]_[Emotion]_[v1] Example: RPG_TavernKeeper_Jovial_v1
Version control: Clone before major edits to A/B compare changes.
Metadata: Record mic model, room setup, date, and rights-holder—essential for compliance.
Archival: Back up raw WAVs and training bundles (e.g., to S3 or LTO) in case of future re-training on new engine versions.
Voice cloning opens up a wide range of possibilities across different industries. Let's take a look at some specific examples of how this technology is being used and the benefits it provides
Industry | Example | Benefit |
---|---|---|
Audiobooks | One narrator, localized into 6 languages | Avoids rehiring multiple voice talents |
Gaming | NPCs change tone based on gameplay | Infinite variation without new sessions |
Advertising | Always-on brand voice for promos | No scheduling delays |
Accessibility | Consistent voice for video descriptions | Increases user comfort and trust |
A great voice clone is equal parts engineering and direction—clean input, thoughtful design, and precise tuning.
Ready to hear your own?
Need more control? Upgrade for voice mixing, multilingual cloning, and longer content generation. Keep iterating. The voice you imagine is within reach.
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