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Narration Box vs Vocal Isolator

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

Narration Box compared with Vocal Isolator
DetailNarration Box logo Narration BoxVocal Isolator logo Vocal Isolator
What it doesAI voice production platform for creators and teams AI vocal and music separator for creating acapellas, instrumentals, and karaoke tracks
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Not given
PricingFree plan: $0/month with 1,000 text-to-speech words, 1 voice clone, 5 projects. Plus: $15/month (20,000 words, 2 clones, 50 projects). Pro: $30/month (45,000 words, 6 clones, unlimited projects). Scale: $75/month (100,000 words, 15 clones). Annual plans get 50% off. Extra words cost $2 per 1,000 on Free tier: 30-second preview without sign-in, 1 minute free downloads after sign-in, 10 clips up to 30 seconds daily. Pro: $9.99/month for 20 hours monthly. Pay-as-you-go: 20 Minute Pack $1.99, 1 Hour Pack $4.99, 10 Hour Pack $14.99.
Key features
  • Voice cloning from 30 seconds of audio
  • Long-form content support without length limits
  • Multi-speaker and multilingual projects
  • EPUB, PDF, and DOCX audiobook import and parsing
  • Multiple export formats (MP3, WAV, Opus, FLAC, OGG)
  • Commercial usage rights included
  • BS-RoFormer AI model for source separation with 18.10 dB instrumental SDR on MVSEP leaderboard
  • Supports MP3, WAV, FLAC, AIFF, M4A, AAC, OGG, OPUS audio and MP4, MOV, M4V, WEBM, MKV video up to 2 GB
  • Returns both tracks as 44.1 kHz, 16-bit WAV or MP3 with sample alignment
  • Speed control from 50% to 150% without changing pitch
  • Key shift up or down by up to 6 semitones without changing speed
  • BPM and key detection on acapella extractor
  • 24-bit WAV output option at 44.1 or 48 kHz on acapella extractor
  • Remove background noise, hum, fans, traffic, and room echo from speech
What makes it different
  • No technical skills required to create professional audio
  • Block-based editing allows precise control and regeneration of individual sections
  • Unlimited long-form content production in one platform
  • Full commercial rights with 100% ownership of generated audio
  • Uses AI source separation instead of phase cancellation, keeping bass and drums intact
  • Automatic file deletion after 24 hours for privacy
  • Fast processing on dedicated cloud GPUs with instant preview as upload begins
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)34 −1 (down) since last check5 +3 (up) since last check
Trust Flow (Majestic)70
Citation Flow (Majestic)370
Referring domains (Majestic)5460

4 details filled in for both companies.

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