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audioproxy vs SoundWise.ai

Provides audio variants via URL, not a full transcription UI
audioproxyAudio variants, addressed by URLSoundWise.aiTransform Speech to Text, Instantly and Freely

Side by side

What it is
audioproxy:Audioproxy renders audio variants on demand via signed URLs, streaming and caching them without a job queue.
SoundWise.ai:SoundWise.ai is a free, browser-based tool that transcribes unlimited audio and video files to text.
Best for
audioproxy:On-demand audio variant rendering
SoundWise.ai:Unlimited free browser transcription
Who it’s for
audioproxy:Developers needing on-the-fly audio transcoding and variant generation.
SoundWise.ai:Students, creators, professionals needing quick transcription without installing software.
Pricing
audioproxy:Open source
SoundWise.ai:Freemium
Plans
audioproxy:—
SoundWise.ai:Free Free · Pro US$10 per month (billed annually)
Open source
audioproxy:Yes, 7 GitHub stars
SoundWise.ai:—
Works with
audioproxy:Elixir, Rails, Hotwire
SoundWise.ai:—
DevHunt upvotes
audioproxy:12
SoundWise.ai:0
Launched on DevHunt
audioproxy:Sep 2026
SoundWise.ai:Jan 2026

audioproxy features

  • URL-based API. All variant options are encoded in the URL, which also serves as the cache key.
  • Streaming render. The first request streams encoded audio while it is being generated.
  • Cache & range support. Subsequent requests hit a cached file with full range-request capability.
  • S3 or directory source. Reads source files from a mounted directory or any S3-compatible bucket.
  • Audio processing options. Supports format, bitrate, VBR, resample, trim, fade, gain, loudness normalization and speech enhancement.
  • Peak data format. Can output waveform min/max pairs as JSON or binary for UI rendering.
  • Health & metrics. Provides /health, /ready and Prometheus metrics endpoints.
  • Signed URLs. Requests are signed GETs; signatures are excluded from the cache key for shared variants.
audioproxy on DevHunt →Alternatives

SoundWise.ai features

  • Unlimited Free Transcription. Convert unlimited audio/video files to text at no cost.
  • Wide Format Support. Handles MP3, WAV, MP4, MOV, MKV, FLAC, AAC and more.
  • Browser-Based Access. No installation required; works directly in the web browser.
  • Drag-and-Drop Interface. Simple UI lets users drop files to start transcription.
  • Fast Processing (Local). Transcribes about 1 hour of audio in ~10 minutes on a typical PC.
  • Pro Cloud Transcription. Cloud models transcribe 1 hour of audio in ~30 seconds (10x faster).
SoundWise.ai on DevHunt →Alternatives

Based on each tool's website and DevHunt data. Details may change; check the official sites.