ScribeKit and SystemAudioKit

EchoPad’s engine is two Swift packages, MIT licensed, that you can use in your own apps. Each has its own documentation site.

ScribeKitCopy Anchor Link

Local speech-to-text with speakers. Wraps FluidAudio’s Parakeet TDT v3 and offline diarization in a small API that returns speaker turns with word timings, and renders them as Markdown, text, SRT, WebVTT or JSON. macOS 14+ and iOS 17+.

Full documentation: scribekit.lucaspiera.com.

.package(url: "https://github.com/pieralukasz/ScribeKit.git", from: "0.1.0")

import ScribeKit

let scribe = Scribe()
try await scribe.prepare(diarization: true)

let transcript = try await scribe.transcribe(url, options: .init(language: "en"))
print(try TranscriptRenderer.render(transcript, as: .markdown))

For calls, pass the two tracks and your name. The microphone track is labelled with it; the system track is diarized:

let transcript = try await scribe.transcribeConversation(
    microphone: micURL, system: systemURL,
    options: .init(localSpeakerName: "Lukasz"))

The package includes a scribe command:

swift run scribe prepare --diarize
swift run scribe meeting.m4a --lang pl --format srt

SystemAudioKitCopy Anchor Link

Record the microphone and what the Mac plays as separate tracks on one timeline. Core Audio process taps (macOS 14.2+) capture the whole system except your app, or only chosen apps; ScreenCaptureKit is a fallback. Gaps are filled with silence so the tracks stay aligned. Includes a detector for call apps using the microphone.

Full documentation: systemaudiokit.lucaspiera.com.

.package(url: "https://github.com/pieralukasz/SystemAudioKit.git", from: "0.1.0")

import SystemAudioKit

let recorder = AudioRecorder()
try await recorder.start(.init(microphone: .systemDefault, systemAudio: .everything), in: folder)
// …
let recording = await recorder.stop()   // microphone.wav + system.wav

Add NSMicrophoneUsageDescription and NSAudioCaptureUsageDescription to your Info.plist.

swift run sysaudio meetings
swift run sysaudio record 10 ./out