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SonicCaption vs VoiceIsolator

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

SonicCaption compared with VoiceIsolator
DetailSonicCaption logo SonicCaptionVoiceIsolator logo VoiceIsolator
What it doesReal-time bilingual subtitles on any tab Free AI voice isolator to remove noise from audio and video in your browser, or strip background music with GPU isolation
StageNot given Not given
FoundedNot given Not given
Based inUS Not given
Pricing modelFreemium Freemium
PricingFree: $0, 20 minutes per month. Starter: $10/month, 8 hours per month. Pro: $20/month, 20 hours per month. Power: $39/month, 50 hours per month. Ultra: $79/month, 120 hours per month. Team/Enterprise: Custom pricing. Yearly plans save 30%. Noise cleanup: free and unlimited. AI voice isolation: 1 Credit per minute. Credit packs: 100 Credits for $4.99 (5.0¢ per minute), 250 Credits for $9.99 (4.0¢ per minute). New accounts receive 10 free Credits.
Key features
  • Real-time bilingual captions on any website with audio
  • Works with YouTube, Netflix, Twitch, Zoom, Google Meet, and more
  • Low-latency subtitles appearing in ~0.5 seconds
  • Dual subtitles showing original and translation simultaneously
  • No file uploads required
  • Privacy-aware audio processing
  • Shared team minute pool with per-member usage tracking
  • Team roles with clear permissions
  • Free browser-based noise cleanup using DeepFilterNet3
  • AI voice isolation with Mel-Band RoFormer to remove background music
  • No file upload for noise cleanup mode
  • Supports multiple audio and video formats
  • Before and after comparison player
  • Works on mobile browsers and phones
  • Downloads as WAV or MP3
  • 10-minute file length limit with 100 MB size limit for AI isolation
  • Three strength settings: Gentle, Balanced, and Maximum
What makes it different
  • Subtitles appear in ~0.5 seconds, fast enough for live streams
  • No manual file uploads needed
  • Universal browser compatibility with any audio tab
  • Dual subtitles showing both languages simultaneously
  • Built by a software engineer who uses it daily
  • Local browser processing eliminates upload costs and per-minute billing for noise cleanup
  • No account required and no watermark for free noise cleanup
  • Private processing with automatic upload deletion
  • Separate voice and background tracks output for AI isolation
  • Credits never expire with no subscription requirement
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)11 −1 (down) since last check27 +1 (up) since last check
Trust Flow (Majestic)102
Citation Flow (Majestic)2717
Referring domains (Majestic)11512

5 details filled in for both companies.

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