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Content Library (LinkedIn Growth Mastery)·LinkedIn Growth Mastery - AI Video Content Creation·36:57

Connect the Dots: Link ElevenLabs to HeyGen by API Key, Produce Your First Avatar Video, Fix Pronunciation, and the External-Audio Workaround

Uttam Gupta Trainer - former director of growth at Growth School, founder of Agent Valley (agentvalley.ai)

The short version

  1. An API key is the connector: ElevenLabs -> Developer -> API Keys -> create (read access) -> copy once; never share it, it spends your credits. HeyGen -> avatar -> New Voice -> 3rd Party Voice -> Import -> paste -> toggle your clone on (0:00-0:11).
  2. Production loop: avatar -> paste script -> pick your named voice (not HeyGen's numbered clones) -> Motion Engine (Avatar 3 unlimited-ish; Avatar 4/5 better, credit-gated) -> background removal -> preview audio -> fix pronunciation with a phonetic respelling from ChatGPT, CAPS, pauses -> Generate (0:11-0:20).
  3. Pro workaround: polish the audio in ElevenLabs, download the MP3, upload it to HeyGen - more reliable, tool-agnostic, works with a phone recording. Ten minutes end to end versus a shoot day and two weeks; raw output vs edited output shown side by side (0:24-0:36).

At a glance, three clicks deep

Skim here first: the closed row is the glance, open is the study card with the key points and timestamps, and the ↓ link drops to that concept's full write-up below.

01Connecting ElevenLabs to HeyGen with an API keyRead-only key -> HeyGen 3rd-party voice import;›

Read-only key -> HeyGen 3rd-party voice import; never share.

Key creation (0:04-0:08)

HeyGen import (0:08-0:11)

Security warning (0:00-0:04)

↓ Full write-up of this concept

02The HeyGen production loop and the pronunciation checkNine steps;›

Nine steps; preview audio; Avatar 3 daily, 4/5 for the big ones.

Loop (0:11-0:16)

Pronunciation fixes (0:16-0:20)

Ten-minute economics (0:27-0:29)

↓ Full write-up of this concept

03The external-audio workaroundPolish in ElevenLabs -> download -> upload to HeyGen.›

Polish in ElevenLabs -> download -> upload to HeyGen.

Workaround (0:24-0:26)

Raw vs edited comparison (0:29-0:34)

↓ Full write-up of this concept

The concepts in full

01

Connecting ElevenLabs to HeyGen with an API key

The key is shown once. Copy it, paste it, and never hand it to anyone - it is your credit card for that service.

PROCEDURE: ElevenLabs -> Developer -> API Keys -> Create -> name it -> Read permission is enough -> Create -> copy (it is never shown again). HeyGen -> open the avatar -> voice edit icon -> New Voice -> 3rd Party Voice (ElevenLabs and LMNT are the only two) -> Import Voice -> paste -> Confirm -> toggle on the specific cloned voice. Done once per account. Warning repeated: anyone holding the key spends your ElevenLabs credits.

Why it matters

One-time wiring that makes your real voice selectable inside HeyGen.

02

The HeyGen production loop and the pronunciation check

Preview the audio before you render. 'Dubai' came out wrong for two people who skipped this.

PROCEDURE: 1) select avatar; 2) paste script; 3) confirm the look; 4) select your imported professional voice, not HeyGen's numbered auto-clones; 5) Motion Engine - Avatar 3 for everyday (near-unlimited), Avatar 4/5 for the important videos (script-driven gestures, monthly credit cap); 6) remove or replace the green-screen background; 7) preview the audio; 8) fix misses - ask ChatGPT or Claude 'it can't pronounce Dubai, give me a phonetic spelling', CAPS for emphasis, pause controls, Regenerate audio; 9) Generate with resolution, FPS and MP4 (4K on premium). Audio ~5 minutes, render ~5 minutes: a video in ten minutes, same-day reaction content instead of a shoot day and a two-week lead.

Why it matters

The repeatable core loop, with the step people skip marked.

03

The external-audio workaround

Make the audio perfect where the audio tools live, then hand HeyGen a finished file.

Instead of generating through the API link, write and refine the line in ElevenLabs (wording, pauses, emphasis, regenerate), download the MP3, and in HeyGen choose upload audio rather than a linked voice. Works with any TTS export or a real phone recording, so you are not locked to ElevenLabs. The trainer's own published videos are then edited in Premiere and After Effects, but the same look is reachable without an editor (next lessons).

Why it matters

More control, fewer API glitches, no vendor lock-in.

Tools referenced

ToolCoverageMomentContext
ElevenLabsdemonstratedAPI key; TTS download
HeyGendemonstratedVoice import; production; Avatar 3/4/5; render
ChatGPTmentionedPhonetic respelling
Adobe PremierementionedTrainer's own edits

Action items

    Extraction notes

    This page was built from an auto-generated transcript, which garbles product and people's names. Those were corrected silently in everything above and logged here for transparency. The warnings flag claims that were true on the recording day but change fast.

    Transcript corrections applied

    The transcript saysThe trainer actually means
    Lignin / lean inLinkedIn
    GrowthCool / GrowSchoolGrowth School
    agent valueAgent Valley
    Sutta / Utham / AutumnUttam (trainer)

    True on recording day — verify before relying