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audioproxy vs SoundWise.ai
Short answer: Pick audioproxy if you want on-demand audio variant rendering; pick SoundWise.ai if you want unlimited free browser transcription. audioproxy is free and open source; SoundWise.ai has a free plan.
audioproxyAudio variants, addressed by URL
SoundWise.aiTransform Speech to Text, Instantly and FreelyWhich to pick
Pick audioproxy if you want…
- On-demand audio variant rendering
- Audio variant generation
- A free, open-source tool
Pick SoundWise.ai if you want…
- Unlimited free browser transcription
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
- Starting price
- audioproxy:Free
- SoundWise.ai:—
- Free plan or trial
- audioproxy:Free to use
- SoundWise.ai:Free plan (Free) · Free trial
- 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:—
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.
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).
audioproxy vs SoundWise.ai FAQ
What is the difference between audioproxy and SoundWise.ai?+
audioproxy: Provides audio variants via URL, not a full transcription UI.
Should I use audioproxy or SoundWise.ai?+
Pick audioproxy if you want on-demand audio variant rendering, audio variant generation or a free, open-source tool. Pick SoundWise.ai if you want unlimited free browser transcription.
Is audioproxy or SoundWise.ai free?+
audioproxy is free and open source. SoundWise.ai has a free plan and paid plans.
Is audioproxy or SoundWise.ai open source?+
audioproxy is open source (audioproxy/audioproxy on GitHub, Apache-2.0 license). DevHunt has no public source repository on record for SoundWise.ai.
On DevHunt
audioproxy
12 upvotes · Launched on DevHunt on Sep 15, 2026
Based on each tool's website and DevHunt data. Details may change; check the official sites.