3 Best Audio Subtitle Generators to Effortlessly Create Subtitles from Audio

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3 Best Audio Subtitle Generators to Effortlessly Create Subtitles from Audio

Last Updated: 2023. 09. 04

Manually transcribing audio files to text for subtitles or blog posts is both a time-consuming and painful experience. So, if you are looking for an effortlessly way to generate subtitles from audio, we’ve got you covered!

In this tutorial, we will walk you through the 3 best audio subtitle generators that can auto-generate subtitles from audio and save the transcript in diverse formats for podcasts, video captions, blog posts, or translation into another language to reach a wider audience, etc.

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Modern Music Podcast Intro & Outro

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Music Lyric Travel Slideshow

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Here’s What You Will Learn:

FlexClip

Sonix.AI

Buzz

Also, read the 2 best ways to convert text to podcasts.

1. FlexClip

If you need a versatile audio subtitle generator that can help you auto-generate subtitles from audio online and save the subtitles in various subtitle formats for other repurposings, or even create a compelling YouTube video from your audio recordings, then the FlexClip AI video maker deserves to be one of your go-to choices.

Easily generate subtitles from audio by FlexClip audio subtitle generator and AI video maker online.

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Best Features to Create Subtitles from Audio with FlexClip:

Harness the AI auto subtitle generator to transcribe audio and videos to text for subtitles in one click. It supports 10+ mainstream audio and video formats and can auto-transcribe 140+ languages with diverse accents to text. Meanwhile, the accuracy of auto-transcribed subtitles is up to 90%.

Automatically generate subtitles from audio and video by FlexClip online.

Generate Subtitles Now

Easily edit the subtitles’ text, drag and drop to adjust the subtitles’ timecode, and directly download the subtitle or transcript in SRT, VTT, SSA, ASS, SUB, and SBV files for closed captions on YouTube, Facebook, Vimeo, etc. or repurpose it for your blogs, or translation, etc.

Edit auto-generated subtitles and download subtitles in diverse subtitle formats.

Jazz up the audio recordings with royalty-free music, sound effects, high-quality images, footage and transitions funny GIPHY GIFs, creative effects overlays, text animations, etc. to create a captivating video with ease.

Utilize vast royalty-free music, sound effects text animations, etc. to repurpose audio files into compelling video content.

What sets FlexClip apart from other audio subtitle generators is that you can use thousands of expertly designed and fully customizable video templates, covering podcast intros and outros, cinematic movie trailers, birthday slideshows, memorials, business promos & sales, explainer videos, webinars, travel, YouTube/TikTok/IG videos, educational videos, sports & fitness, etc. W ith easy drags and drops of your video assets, you can make a scroll-stopping video in minutes.

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Pop YouTube Podcast Intro & Outro

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ChatGPT YouTube Tutorial Video

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Audiobook Trailer

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AI Robot Company Webinar

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In addition, as a full-featured AI video maker, FlexClip also empowers you with other helpful AI video tools to streamline your video editing process and save you tons of precious time. From the AI video script generator, powered by ChatGPT, to the hyper-realistic text-to-speech generator, text-to-image generator, text-to-video generator, image background remover, and audio extractor, etc. you can unlock your creativity and create video content like never before.

Effortlessly convert text to realistic AI voices by FlexClip online.

Use Free TTS

How to Generate Subtitles from Audio by FlexClip Online:

Step 1

Access FlexClip > upload your audio recordings from your PC, phone, Google Drive, One Drive, Dropbox, or Google Photos.

Upload your audio recordings to FlexClip.

Step 2

Reset the video duration to match your audio length > click the Plus sign to add your audio files to the intuitive timeline. You can trim or split the audio track when needed.

Set video duration and add your audio recordings to the intuitive timeline.

Step 3

Auto-generate subtitles from audio.

Click the Subtitle tab > Auto AI Subtitle > identify the language of the audio recordings > hit Next > choose the style of subtitle, which can be changed later > click the Generate button. Then, FlexClip shall automatically transcribe audio to text for subtitles.

Automatically create subtitles from audio in one click.

Generate Subtitles Now

Now, you can proofread the auto-generated subtitles > edit any typos > click the download button to choose a subtitle format (SRT, VTT, SSA, ASS, SUB, SBV) to save the transcript to your PC for closed captions, blog posts, or other repurposings.

Edit the auto-generated subtitles and download the subtitles in SRT, VTT, or other subtitle formats.

A small trick is that if you find one subtitle too long, you can press “Enter” to split it or click the Merge tool to easily merge two short subtitles.

Easily split or merge subtitles.

If you want to adjust the subtitle’s timecode, you can choose one or multiple subtitles > drag and drop to the left or right to advance or delay the subtitle display. Pretty flexible!

Easily drag and drop to adjust the subtitle’s timecode.

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Step 4

Repurpose your audio files into a compelling video. (optional)

Alternatively, if you want to repurpose the audio recordings into a compelling video, you can import your images or clips > layer them over the screen for the visual content.

Layer your images or clips to repurpose audio recordings into compelling video content.

Next, click the Audio and Text tab to choose from 74,000+ royalty-free music tracks and sound effects and 1,000+ readymade and editable text animations to create an engaging video with ease. Besides, 200+ trending video transitions and 300+ creative overlays, hilarious GIPHY GIFs, etc. are also available to get your creative juice flowing.

Spice up your video with editable text animations, royalty-free music and sound effects, and more.

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Finally, done with the editing, you can click the Export button > save the 1080P MP4 video to your PC or directly share it to YouTube, Google Drive, One Drive, Dropbox, or even TikTok; a clickable link is also available for your blog posts, newsletters or other repurposings.

Easily share and repurpose your video content.

Downside:

Can’t export the subtitles in TXT, DOCX, and PDF format.

2. Sonix.AI

If you need more than creating subtitles from audio but also wish that the audio subtitle generator can use its AI to help you summarize the audio recordings for blog posts, and even directly translate the subtitle to another language to reach a wider audience, in this case, Sonix. AI can be a flawless one-stop solution online.

Generate subtitles from audio by Sonix. AI online.

Best Features to Create Subtitles from Audio with Sonix:

Automatically transcribe audio and video to text for subtitles online. It supports 38 languages and dialects for auto-transcription with pinpoint accuracy.

Sonix’s AI will automatically identify the speakers and later you can name different speakers or label them with different colors. You can easily edit subtitles and adjust the subtitle's timecode.

The AI summarization feature allows you to effortlessly summarize audio files in a few sentences, or a few bullet points, or tell AI how to summarize.

Directly translate the auto-generated subtitles to another 38 languages to engage particular viewers or readers for your video content or blog posts, etc.

Save the subtitle or transcript of the audio and video files in DOCX, TXT, PDF, SRT, or VTT and TTML formats.

How to Generate Subtitles from Audio by Sonix Onine:

How to create subtitles from audio and video by Sonix.AI online.

Step 1

Sign up free for Sonix.AI > access its workspace > click the Upload button > choose your audio files from your PC, Google Drive, or Zoom > identify the language spoken in your audio file > hit the Transcribe Now button.

Step 2

Click the transcribed audio file to edit the subtitles > you can click the Subtitle tab to split subtitles by the number of lines or number of characters. Or show Timeline to adjust the subtitle’s timecode.

Step 3

Click the Tools tab > Generate AI Summary > you can use AI to summarize the audio recordings in a few sentences, a few bullet points or whatever ways you need.

Step 4

Click the Translations tab > Translate transcript to a different language > you can choose from 38 languages to directly translate the subtitles to another language > click the globe icon to compare the original and translated subtitles. Cool!

Step 5

Preview and share.

Click the Export button > choose from SRT, VTT, or DOCX or PDF to save your subtitles for your blogs or other repurposing.

Downside:

No audio and video editing tools and royalty-free stock assets available.

Sonix can only transcribe or translate 38 languages.

3. Buzz

Last, but certainly not least, if you prefer a free and easy-to-use audio subtitle generator that works seamlessly on Windows, Mac, and Linux, then Buzz, a desktop audio transcription tool, developed by OpenAI’s Whisper, can be another great workaround.

Generate subtitles from audio by Buzz.

Best Features to Create Subtitles from Audio with Buzz:

Automatically transcribe audio and videos to text for subtitles for free. It supports 90+ languages for transcription. It can translate the audio and video files as well.

Offer you 4 free language models to transcribe audio and video to text and you may opt to use paid OpenAI API for transcription.

Easily auto-generated subtitles timecodes and text on a minimal text editor.

Export the subtitles in TXT, SRT, and VTT formats.

Directly record your voices for transcription.

How to Generate Subtitles from Audio by Buzz:

How to automatically transcribe audio to text for subtitles by Buzz.

Step 1

Download the Buzz for free online > install it on your PC or Mac > launch the Buzz.

Step 2

Click the File tab > Import Audio file > choose a language model for transcription > choose Transcribe > identify the language of your audio files > hit the Run button. Now, Buzz will automatically generate subtitles from audio.

Step 3

When the transcription is completed, choose the audio file > click the expand icon to reveal the subtitle editor > proofread the auto-generated subtitles and correct any misspellings and subtitle timecodes.

Step 4

Click the Export button > save the subtitle in TXT, SRT or VTT format to your PC.

Downside:

No way to playback the audio or video to check whether the subtitle timecode syncs perfectly to the dialogues in the audio or video.

Auto-generated subtitles often fall short in terms of accuracy.

No audio and video editing tools and video assets available.

Now, It's Your Move

In a nutshell, a versatile audio subtitle generator can drastically cut down the time and effort needed to create subtitles from audio and video. Give all the mentioned audio subtitle generators a spin, share this post on your Facebook or Twitter, and let us know which one fits you best. Cheers to your content creation!

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Frank /

Passionate about photography, video-making and travel, Frank is a seasoned copywriter and a beloved father of 2-year-old daughter at FlexClip. He is always keen to share his latest discovery about video marketing and tricks to relive your memories through videos and images.