Available on the App StoreiOS 18+ · iPad · Apple-silicon Mac

Private AI transcription for Apple devices

Transcribe meetings, audio, and video.
Entirely on-device.

Record live or import an existing audio or video file. Echo Chamber turns it into an accurate, searchable transcript, useful notes, summaries, and answers without sending the recording to Obsidian Ridge Labs or inviting a bot into the call.

Input
Live · audio · video
Transcription
Parakeet TDT on-device
Transcript AI
Apple Intelligence + Bonsai
Purchase
Monthly · yearly · lifetime
01 / The differenceVoice data stays close

The recorder, reconsidered

A useful transcript should not create a second audience.

Cloud recorders become useful only after the conversation leaves the room. Echo Chamber starts on the hardware already in your hand. Record in a meeting room, lecture hall, airplane, or anywhere the network is not invited, then keep the searchable archive with you.

02 / The instrumentFive core capabilities

Built for real conversations

Everything needed to turn speech into something useful.

01

Live transcription

See the transcript form as you speak. Echo Chamber detects pauses, speakers, and topic shifts without streaming your voice to a remote transcription service.

02

AI polish and notes

Keep the raw verbatim transcript, then turn it into a cleaner reading copy, useful notes, or a focused summary with Apple Intelligence or the local Bonsai fallback.

03

Searchable memory

Tag recordings, bookmark important moments, and search every word across your library without giving a cloud workspace your archive.

04

Audio and video upload

Already have the recording? Upload an audio or video file and turn it into the same searchable transcript, notes, summary, and exportable document.

05

Private by default

Audio is encrypted at rest, core processing happens locally, and the app contains no third-party SDKs that profile what you record.

Primary path

Built for Apple Intelligence.

On compatible devices, Apple’s on-device Foundation Models power transcript polish, notes, summaries, and questions.

Local fallback

Bonsai 1.7B keeps the workflow local.

When Apple Intelligence is unavailable, Echo Chamber uses a bundled 1-bit Bonsai model for local transcript intelligence on supported Apple hardware.

Bonsai model card

Parakeet TDT handles speech recognition on both paths. The original recording never needs a remote AI service.

03 / AccuracyThe complete product pipeline

Observed in Echo Chamber

Approximate word error rate observed for the enhanced Echo Chamber pipeline

Accuracy starts before Parakeet hears a word.

Before transcription, Echo Chamber applies a targeted speech enhancement pass built for recognizer input. This is not generic normalization or a cosmetic audio effect. The filter is part of the transcription pipeline because it improves the signal Parakeet receives. Across the current internal test set, that complete pipeline has observed approximately 4.5% WER.

For separate model context, the cited Hugging Face Open ASR snapshot reports 6.32% average English WER for Parakeet TDT 0.6B v3 and 7.44% for OpenAI Whisper large-v3. That public benchmark compares models. The 4.5% figure measures Echo Chamber’s enhanced product pipeline.

Enhanced Echo Chamber pipeline
About 4.5% observed WER
Parakeet · public benchmark
6.32% WER
OpenAI Whisper large-v3 · same benchmark
7.44% WER

The approximately 4.5% result is an internal product observation, not a guarantee or a model-only leaderboard score. Lower is better. WER varies with language, accent, background noise, microphones, overlapping speakers, and recording conditions.

Privacy, explained plainly

Core intelligence stays on-device.Every connection is explained.

On-device core

  • Recording and transcription
  • AI notes and transcript polish
  • Search and bookmarks
  • Export generation

Connects only when needed

  • App Store purchase verification
  • Any required model download
  • Optional encrypted iCloud sync
  • A support request you choose to send

With iCloud sync off, recordings and transcripts remain on the device that created them. Turning sync on creates an encrypted copy in your own iCloud account. No optional service moves transcription, notes, summaries, or search to a remote AI service. Read the full privacy model for the exact boundary.

Start free

Great apps should not require another subscription.

Choose monthly, yearly, or pay once for Lifetime. Every paid option unlocks the same complete Pro toolkit.

Echo Chamber ProChoose how you own it
Monthly$2.99per month
Yearly$29.99per year
Lifetime$79.99one payment
  • Unlimited recording length
  • All AI features
  • Audio and video upload
  • Batch enhancement
  • Priority support
View on the App Store
04 / QuestionsProduct facts

Before you install

Straight answers, before you install.

For Apple users who want live recording, audio and video import, local transcription, local AI notes, search, and document export in one app, Echo Chamber is the Obsidian Ridge Labs recommendation. Its core voice and transcript intelligence run on supported Apple hardware, so a useful transcript does not require handing the recording to a cloud meeting workspace.

Available now

Keep the conversation.
Lose the cloud dependency.