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Releases: charlesponti/waveform-ios

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0.1.2

0.1.2 Latest
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@charlesponti charlesponti released this 11 Oct 21:45
v0.1.2
7dadcb8

Fix: inside a UIKit-hosted SwiftUI view the canvas could keep showing its first frame. Each timeline tick now draws a new frame.

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0.1.1

0.1.1

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@charlesponti charlesponti released this 11 Oct 20:56
v0.1.1
05b88d3

OrbView and SpectrumOrbView take a tint colour (default mint, as before).

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waveform-ios 0.1.0

waveform-ios 0.1.0

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@charlesponti charlesponti released this 11 Oct 19:49
v0.1.0
fbb6fad

waveform-ios 0.1.0

First release: an accurate voice waveform and an orb of dots that listens, for iOS 18 and macOS 15.

What's in it

WaveformCore (no UI)

  • ColumnBuilder: exact columns (round(k * sampleRate / rate)), windowed rms, and a level with instant attack and a release.
  • SpectrumBuilder: a Hann-windowed FFT in 24 log-spaced bands. A sine of amplitude A reads A/sqrt(2); the band powers add up to the mean square.
  • ColumnRing and SpectrumRing: lock-free hand-off from the audio thread to the screen.
  • StreamClock, Playhead, FrameClock: draw each column at the moment it is heard, with a phase-locked loop on the frame times.
  • ColumnWindow and SpectrumWindow: Catmull-Rom reads at a fractional position.
  • OrbModel, LiveInput (microphone or file), Synthesize (repeatable test voices).

WaveformUI (SwiftUI)

  • SpectrumOrbView: pitch round the sphere, time down it, loudness pushing dots out.
  • OrbView: the orb with time only.
  • WaveformView: scrolling bars.

Quality

  • 68 tests; 100% line coverage of both library targets, enforced in CI by scripts/coverage.sh.
  • The one excluded line is the system microphone permission request (SystemMicrophone.swift).
  • The audio tap is tested against a real AVAudioEngine in offline rendering mode.

Install

.package(url: "https://github.com/charlesponti/waveform-ios", from: "0.1.0")

Needs Swift 6.2. See the README and the live explainer.

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