diff --git a/apps/ios/Sources/Voice/TalkModeManager.swift b/apps/ios/Sources/Voice/TalkModeManager.swift
index a06154037..fefefe68f 100644
--- a/apps/ios/Sources/Voice/TalkModeManager.swift
+++ b/apps/ios/Sources/Voice/TalkModeManager.swift
@@ -39,6 +39,8 @@ final class TalkModeManager: NSObject {
     private var mainSessionKey: String = "main"
     private var fallbackVoiceId: String?
     private var lastPlaybackWasPCM: Bool = false
+    var pcmPlayer: PCMStreamingAudioPlaying = PCMStreamingAudioPlayer.shared
+    var mp3Player: StreamingAudioPlaying = StreamingAudioPlayer.shared
 
     private var bridge: BridgeSession?
     private let silenceWindow: TimeInterval = 0.7
@@ -502,10 +504,10 @@ final class TalkModeManager: NSObject {
                 let result: StreamingPlaybackResult
                 if let sampleRate {
                     self.lastPlaybackWasPCM = true
-                    result = await PCMStreamingAudioPlayer.shared.play(stream: stream, sampleRate: sampleRate)
+                    result = await self.pcmPlayer.play(stream: stream, sampleRate: sampleRate)
                 } else {
                     self.lastPlaybackWasPCM = false
-                    result = await StreamingAudioPlayer.shared.play(stream: stream)
+                    result = await self.mp3Player.play(stream: stream)
                 }
                 self.logger
                     .info(
@@ -554,14 +556,14 @@ final class TalkModeManager: NSObject {
     private func stopSpeaking(storeInterruption: Bool = true) {
         guard self.isSpeaking else { return }
         let interruptedAt = self.lastPlaybackWasPCM
-            ? PCMStreamingAudioPlayer.shared.stop()
-            : StreamingAudioPlayer.shared.stop()
+            ? self.pcmPlayer.stop()
+            : self.mp3Player.stop()
         if storeInterruption {
             self.lastInterruptedAtSeconds = interruptedAt
         }
         _ = self.lastPlaybackWasPCM
-            ? StreamingAudioPlayer.shared.stop()
-            : PCMStreamingAudioPlayer.shared.stop()
+            ? self.mp3Player.stop()
+            : self.pcmPlayer.stop()
         TalkSystemSpeechSynthesizer.shared.stop()
         self.isSpeaking = false
     }
diff --git a/apps/macos/Sources/Clawdis/TalkModeRuntime.swift b/apps/macos/Sources/Clawdis/TalkModeRuntime.swift
index 73f76b1cf..124dbc76a 100644
--- a/apps/macos/Sources/Clawdis/TalkModeRuntime.swift
+++ b/apps/macos/Sources/Clawdis/TalkModeRuntime.swift
@@ -64,6 +64,8 @@ actor TalkModeRuntime {
     private var apiKey: String?
     private var fallbackVoiceId: String?
     private var lastPlaybackWasPCM: Bool = false
+    var pcmPlayer: PCMStreamingAudioPlaying = PCMStreamingAudioPlayer.shared
+    var mp3Player: StreamingAudioPlaying = StreamingAudioPlayer.shared
 
     private let silenceWindow: TimeInterval = 0.7
     private let minSpeechRMS: Double = 1e-3
@@ -538,10 +540,10 @@ actor TalkModeRuntime {
                 let result: StreamingPlaybackResult
                 if let sampleRate {
                     self.lastPlaybackWasPCM = true
-                    result = await PCMStreamingAudioPlayer.shared.play(stream: stream, sampleRate: sampleRate)
+                    result = await self.pcmPlayer.play(stream: stream, sampleRate: sampleRate)
                 } else {
                     self.lastPlaybackWasPCM = false
-                    result = await StreamingAudioPlayer.shared.play(stream: stream)
+                    result = await self.mp3Player.play(stream: stream)
                 }
                 self.ttsLogger
                     .info(
@@ -642,11 +644,11 @@ actor TalkModeRuntime {
         let usePCM = self.lastPlaybackWasPCM
         let interruptedAt = await MainActor.run {
             let primary = usePCM
-                ? PCMStreamingAudioPlayer.shared.stop()
-                : StreamingAudioPlayer.shared.stop()
+                ? self.pcmPlayer.stop()
+                : self.mp3Player.stop()
             _ = usePCM
-                ? StreamingAudioPlayer.shared.stop()
-                : PCMStreamingAudioPlayer.shared.stop()
+                ? self.mp3Player.stop()
+                : self.pcmPlayer.stop()
             return primary
         }
         await TalkSystemSpeechSynthesizer.shared.stop()
diff --git a/apps/shared/ClawdisKit/Sources/ClawdisKit/AudioStreamingProtocols.swift b/apps/shared/ClawdisKit/Sources/ClawdisKit/AudioStreamingProtocols.swift
new file mode 100644
index 000000000..a211a4b3a
--- /dev/null
+++ b/apps/shared/ClawdisKit/Sources/ClawdisKit/AudioStreamingProtocols.swift
@@ -0,0 +1,16 @@
+import Foundation
+
+@MainActor
+public protocol StreamingAudioPlaying {
+    func play(stream: AsyncThrowingStream<Data, Error>) async -> StreamingPlaybackResult
+    func stop() -> Double?
+}
+
+@MainActor
+public protocol PCMStreamingAudioPlaying {
+    func play(stream: AsyncThrowingStream<Data, Error>, sampleRate: Double) async -> StreamingPlaybackResult
+    func stop() -> Double?
+}
+
+extension StreamingAudioPlayer: StreamingAudioPlaying {}
+extension PCMStreamingAudioPlayer: PCMStreamingAudioPlaying {}