Voices

<p>Looking to take full control of your video narration? With HeyGen’s API, you can preview voice audio and explore our library of voices to be used in HeyGen videos.</p><img alt="some-file-aa1b66c5-255a-4952-a70c-f3b3c41df9e5" src="https://d2xo500swnpgl1.cloudfront.net/uploads/heygen/some-file-aa1b66c5-255a-4952-a70c-f3b3c41df9e5-1729639213243.png"><p><br></p><h3>What’s covered in this guide</h3><ol><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Use HeyGen's API for voices</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Access HeyGen’s API documentation and API key</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Prepare your voiceover script</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Customize your voice settings via the API</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Generate your customized voice</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Import your voice into HeyGen</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Make final adjustments and export</li></ol><p><br></p><h3>How to use HeyGen's API for voices</h3><p>HeyGen’s API for Voices gives developers and content creators access to an extensive library of AI-generated voices, allowing you to insert HeyGen voices into your videos. Let’s explore how you can use it to fully customize your narration.</p><img alt="some-file-3889dba2-480e-48ab-a334-46e896682589" src="https://d2xo500swnpgl1.cloudfront.net/uploads/heygen/some-file-3889dba2-480e-48ab-a334-46e896682589-1729639295838.gif"><p><br></p><h3>Access HeyGen’s API documentation and sign up for an API key</h3><p>First, access HeyGen’s API documentation through the developer portal. </p><p>Sign up for an API key to unlock the full potential of HeyGen’s customizable voices for your project.</p><img alt="some-file-100d5e79-7cdd-4d05-a0a9-ea65e31dad5c" src="https://d2xo500swnpgl1.cloudfront.net/uploads/heygen/some-file-100d5e79-7cdd-4d05-a0a9-ea65e31dad5c-1729639335309.gif"><p><br></p><h3>Prepare your voiceover script</h3><p>Prepare your voiceover script and craft an API call using your chosen programming language. </p><p>HeyGen's API allows you to input your text and define parameters like voice type, tone, and speed—all within a few lines of code.</p><img alt="some-file-a29dabe2-b89b-405d-ada0-56a1060e2770" src="https://d2xo500swnpgl1.cloudfront.net/uploads/heygen/some-file-a29dabe2-b89b-405d-ada0-56a1060e2770-1729639395248.gif"><p><br></p><h3>Customize voice settings via the API </h3><p>Customization is where HeyGen’s API shines. </p><p>Modify the voice’s tone, pitch, speaking speed, and emotional intensity to create a truly unique narration that matches the style and feel of your video.</p><img alt="some-file-37836398-b6d7-45de-acb0-0a53e427e8cf" src="https://d2xo500swnpgl1.cloudfront.net/uploads/heygen/some-file-37836398-b6d7-45de-acb0-0a53e427e8cf-1729639431320.gif"><p><br></p><h3>Generate your customized voice</h3><p>Once you’ve configured your settings, send the API request.</p><p>You can then integrate your selected voices via a 3rd party voice provider such as ElevenLabs, Open AI, and more. You can also create your custom voice by uploading an audio asset to a voice clone.</p><img alt="some-file-dacf3f41-b37d-4ddb-aae4-7e11fe22b91e" src="https://d2xo500swnpgl1.cloudfront.net/uploads/heygen/some-file-dacf3f41-b37d-4ddb-aae4-7e11fe22b91e-1729639558398.gif"><p><br></p><h3>Import your voice into HeyGen</h3><p>Now, import the customized voiceover into HeyGen’s video editor.</p><p>Simply drag and drop the audio file, then sync it with your video timeline for a professional, cohesive result.</p><img alt="some-file-0fe508e4-ef67-4c76-b914-a5c1b020e815" src="https://d2xo500swnpgl1.cloudfront.net/uploads/heygen/some-file-0fe508e4-ef67-4c76-b914-a5c1b020e815-1729639512639.gif"><p><br></p><h3>Final adjustments and exporting </h3><p>Before wrapping up, preview your video to ensure everything looks and sounds perfect. </p><p>When you’re happy with the final product, export your video in high quality for sharing.</p><img alt="some-file-07cb29eb-d545-4267-9ff0-0da6206b4f54" src="https://d2xo500swnpgl1.cloudfront.net/uploads/heygen/some-file-07cb29eb-d545-4267-9ff0-0da6206b4f54-1729639547310.gif"><p>And that’s it! You've now created a fully customized narration using HeyGen’s API, tailored to fit your video’s exact needs.</p><p><br></p><h3>Recap</h3><p>In this guide, you learned:</p><ol><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>How to use HeyGen's API for voices</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>How to access HeyGen’s API documentation and API key</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>How to prepare your voiceover script</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>How to customize your voice settings via the API</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>How to generate your customized voice</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>How to import your voice into HeyGen</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>How to make final adjustments and export</li></ol><p>We’re looking forward to seeing what you’ll create with HeyGen! If you’re posting your videos on social media, make sure to tag any videos you create with @HeyGen_Official so we can celebrate them with you.</p>

How to customize your video narration with HeyGen’s API for Voices

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How to customize your video narration with HeyGen’s API for Voices

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