Grant Gilliam
fd7e1a5907
AudioRecorder captures system audio (ScreenCaptureKit) + mic (AVAudioEngine) on a single serial ioQueue, one shared monotonic t0, time-driven writers (pad gaps / trim overlaps) so tracks stay aligned, and an energy mic-VAD for 'self' spans. AudioMixer sums the aligned tracks into mixed_mono_16k.wav. SessionController drives a serialized start/stop state machine, writes the session folder + self_vad.json, exposes live level meters, and finalizes on quit. Hardening from review: ioQueue single-domain (no races), stop() never hangs (mic-first teardown + bounded stopCapture), layout-agnostic mic deep-copy, discard-only video output to keep SCStream alive, VAD lockstep on committed frames, stable signing team in project.yml, single-instance enforcement.
39 lines
1.2 KiB
Swift
39 lines
1.2 KiB
Swift
import SwiftUI
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/// A small horizontal audio level meter. `level` is a peak amplitude (0…1);
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/// it's mapped to a dBFS scale (−60 dB … 0 dB) so normal speech is clearly visible.
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struct LevelBar: View {
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let label: String
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let level: Float
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var body: some View {
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HStack(spacing: 8) {
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Text(label)
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.font(.caption2)
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.foregroundStyle(.secondary)
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.frame(width: 48, alignment: .leading)
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GeometryReader { geo in
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ZStack(alignment: .leading) {
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RoundedRectangle(cornerRadius: 2).fill(Color.secondary.opacity(0.2))
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RoundedRectangle(cornerRadius: 2)
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.fill(color)
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.frame(width: geo.size.width * fraction)
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}
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}
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.frame(height: 6)
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}
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}
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private var fraction: CGFloat {
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guard level > 0 else { return 0 }
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let db = 20 * log10(Double(level)) // −∞ … 0
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return CGFloat(min(1, max(0, (db + 60) / 60)))
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}
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private var color: Color {
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if fraction < 0.02 { return .gray }
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if fraction > 0.9 { return .red }
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return .green
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}
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}
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