fix: record transcription audio as wav

2026-08-25 12:35:54 +02:00
parent 8b96d5d446
commit 6cb2ae649e
3 changed files with 18 additions and 8 deletions
@@ -209,15 +209,18 @@ final class AudioManager: NSObject, ObservableObject {
    
    private func prepareAudioFiles() throws {
        let settings: [String: Any] = [
-            AVFormatIDKey: kAudioFormatMPEG4AAC,
+            AVFormatIDKey: kAudioFormatLinearPCM,
            AVSampleRateKey: 16_000,
            AVNumberOfChannelsKey: 1,
-            AVEncoderBitRateKey: 48_000
+            AVLinearPCMBitDepthKey: 16,
+            AVLinearPCMIsFloatKey: false,
+            AVLinearPCMIsBigEndianKey: false,
+            AVLinearPCMIsNonInterleaved: false
        ]
        let base = FileManager.default.temporaryDirectory
        let id = sessionID.uuidString
-        let micURL = base.appendingPathComponent("meetingnotes-\(id)-mic.m4a")
-        let systemURL = base.appendingPathComponent("meetingnotes-\(id)-system.m4a")
+        let micURL = base.appendingPathComponent("meetingnotes-\(id)-mic.wav")
+        let systemURL = base.appendingPathComponent("meetingnotes-\(id)-system.wav")
        let newMicAudioFile = try AVAudioFile(
            forWriting: micURL,
            settings: settings,