minor refactoring

cpp/helper.cpp

@@ -77,10 +77,10 @@ std::string UnicodeProcessor::preprocessText(const std::string& text) {
         {"—", "-"},      // em dash
         {"¯", " "},      // macron
         {"_", " "},      // underscore
-        {""", "\""},     // left double quote (U+201C)
-        {""", "\""},     // right double quote (U+201D)
-        {"'", "'"},      // left single quote (U+2018)
-        {"'", "'"},      // right single quote (U+2019)
+        { u8"\u201C", "\"" },   // left double quote “
+        { u8"\u201D", "\"" },   // right double quote ”
+        { u8"\u2018", "'"  },   // left single quote ‘
+        { u8"\u2019", "'"  },   // right single quote ’
         {"´", "'"},      // acute accent
         {"`", "'"},      // grave accent
         {"[", " "},      // left bracket
@@ -175,9 +175,9 @@ std::string UnicodeProcessor::preprocessText(const std::string& text) {
                 last_three == "」" || last_three == "』" ||
                 last_three == "】" || last_three == "〉" ||
                 last_three == "》" || last_three == "›" ||
-                last_three == "»" || last_three == """ ||
-                last_three == """ || last_three == "'" ||
-                last_three == "'") {
+                last_three == "»" || last_three == u8"\u201C" ||
+                last_three == u8"\u201D" || last_three == u8"\u2018" ||
+                last_three == u8"\u2019") {
                 ends_with_punct = true;
             }
         }

ios/ExampleiOSApp/ContentView.swift

@@ -16,13 +16,6 @@ struct ContentView: View {
                         .font(.title2.weight(.semibold))
                         .foregroundColor(.primary)
 
-                    ZStack(alignment: .topLeading) {
-                        if vm.text.isEmpty {
-                            Text("Type text to synthesize")
-                                .foregroundColor(.secondary)
-                                .padding(.horizontal, 14)
-                                .padding(.vertical, 12)
-                        }
                     TextEditor(text: $vm.text)
                         .frame(minHeight: 120, maxHeight: 180)
                         .padding(8)
@@ -32,7 +25,6 @@ struct ContentView: View {
                             RoundedRectangle(cornerRadius: 12)
                                 .stroke(Color.secondary.opacity(0.3), lineWidth: 1)
                         )
-                    }
                         .padding(.horizontal)
 
                     HStack(spacing: 12) {
@@ -92,7 +84,3 @@ struct ContentView: View {
         .onAppear { vm.startup() }
     }
 }
-
-#Preview {
-    ContentView()
-}

ios/ExampleiOSApp/TTSService.swift

@@ -4,25 +4,11 @@ import OnnxRuntimeBindings
 final class TTSService {
     enum Voice { case male, female }
 
-    struct Settings {
-        var nTest: Int = 1
-    }
-
-    struct SynthesisResult {
-        let url: URL
-        let elapsedSeconds: Double
-        let audioSeconds: Double
-        var rtf: Double { elapsedSeconds / max(audioSeconds, 1e-6) }
-    }
-
     private let env: ORTEnv
     private let textToSpeech: TextToSpeech
     private let bundleOnnxDir: String
     private let sampleRate: Int
 
-    // Cached style per voice (precomputed at startup or on first use)
-    private var cachedStyle: [Voice: Style] = [:]
-
     init() throws {
         bundleOnnxDir = try Self.locateOnnxDirInBundle()
         env = try ORTEnv(loggingLevel: .warning)
@@ -30,50 +16,21 @@ final class TTSService {
         sampleRate = textToSpeech.sampleRate
     }
 
-    // Public warmup: precompute styles and run a quick generation to warm models
-    func warmup(nfe: Int = 1) async {
-        do { try precomputeStyle(for: .male) } catch { print("Warmup style (M) error: \(error)") }
-        do { try precomputeStyle(for: .female) } catch { print("Warmup style (F) error: \(error)") }
-        // Run a tiny synthesis to JIT/warm up kernels; discard file
-        do {
-            let res = try await synthesize(text: "Warm up", nfe: max(1, nfe), voice: .male)
-            try? FileManager.default.removeItem(at: res.url)
-        } catch {
-            print("Warmup synth error: \(error)")
-        }
-    }
-
-    func synthesize(text: String, nfe: Int, voice: Voice, settings: Settings = Settings()) async throws -> SynthesisResult {
-        let tic = Date()
-
-        // 1) Get or compute style for the selected voice
-        let style = try getStyle(voice: voice)
+    func synthesize(text: String, nfe: Int, voice: Voice) async throws -> URL {
+        // Load style for the selected voice
+        let styleURL = try Self.locateVoiceStyleURL(voice: voice)
+        let style = try loadVoiceStyle([styleURL.path], verbose: false)
 
         // 2) Synthesize via packed TextToSpeech component
-        let (wav, duration) = try textToSpeech.call([text], style, nfe)
-        let audioSeconds = Double(duration[0])
+        let (wav, duration) = try textToSpeech.call(text, style, nfe)
+        let audioSeconds = Double(duration)
         let wavLenSample = min(Int(Double(sampleRate) * audioSeconds), wav.count)
         let wavOut = Array(wav[0..<wavLenSample])
 
         let tmpURL = FileManager.default.temporaryDirectory.appendingPathComponent("supertonic_tts_\(UUID().uuidString).wav")
         try writeWavFile(tmpURL.path, wavOut, sampleRate)
 
-        let elapsed = Date().timeIntervalSince(tic)
-        return SynthesisResult(url: tmpURL, elapsedSeconds: elapsed, audioSeconds: audioSeconds)
-    }
-
-    // MARK: - Style helpers
-    private func precomputeStyle(for voice: Voice) throws {
-        if cachedStyle[voice] != nil { return }
-        let styleURL = try Self.locateVoiceStyleURL(voice: voice)
-        let style = try loadVoiceStyle([styleURL.path], verbose: false)
-        cachedStyle[voice] = style
-    }
-
-    private func getStyle(voice: Voice) throws -> Style {
-        if let style = cachedStyle[voice] { return style }
-        try precomputeStyle(for: voice)
-        return cachedStyle[voice]!
+        return tmpURL
     }
 
     // MARK: - Resource location helpers

ios/ExampleiOSApp/TTSViewModel.swift

@@ -10,7 +10,6 @@ final class TTSViewModel: ObservableObject {
     @Published var isPlaying: Bool = false
     @Published var errorMessage: String?
     @Published var audioURL: URL?
-
     @Published var elapsedSeconds: Double?
     @Published var audioSeconds: Double?
 
@@ -19,14 +18,12 @@ final class TTSViewModel: ObservableObject {
 
     var rtfText: String? {
         guard let e = elapsedSeconds, let a = audioSeconds, a > 0 else { return nil }
-        let rtf = e / a
-        return String(format: "RTF %.2fx · %.2fs / %.2fs", rtf, e, a)
+        return String(format: "RTF %.2fx · %.2fs / %.2fs", e / a, e, a)
     }
 
     func startup() {
         do {
             service = try TTSService()
-            Task { await self.service?.warmup(nfe: 5) }
         } catch {
             errorMessage = "Failed to init TTS: \(error.localizedDescription)"
         }
@@ -40,15 +37,18 @@ final class TTSViewModel: ObservableObject {
         elapsedSeconds = nil
         audioSeconds = nil
         Task {
+            let tic = Date()
             do {
-                let result = try await service.synthesize(text: text, nfe: Int(nfe), voice: voice)
+                let url = try await service.synthesize(text: text, nfe: Int(nfe), voice: voice)
+                let elapsed = Date().timeIntervalSince(tic)
+                let audio = audioDuration(at: url)
                 await MainActor.run {
-                    self.audioURL = result.url
-                    self.elapsedSeconds = result.elapsedSeconds
-                    self.audioSeconds = result.audioSeconds
+                    self.audioURL = url
+                    self.elapsedSeconds = elapsed
+                    self.audioSeconds = audio
                     self.isGenerating = false
+                    self.play(url: url)
                 }
-                self.play(url: result.url)
             } catch {
                 await MainActor.run {
                     self.errorMessage = error.localizedDescription
@@ -73,4 +73,9 @@ final class TTSViewModel: ObservableObject {
         }
         isPlaying = true
     }
+
+    private func audioDuration(at url: URL) -> Double? {
+        guard let file = try? AVAudioFile(forReading: url) else { return nil }
+        return Double(file.length) / file.fileFormat.sampleRate
+    }
 }

ios/ExampleiOSApp/project.yml

@@ -12,7 +12,7 @@ targets:
     deploymentTarget: "15.0"
     sources:
       - path: .
-      - path: ../../swift/Sources/Helper.swift <<- 여기
+      - path: ../../swift/Sources/Helper.swift
         type: file
     resources:
       - path: onnx