diff --git a/tools/chatgui-android/router-tests/src/main/kotlin/android/media/HostAudio.kt b/tools/chatgui-android/router-tests/src/main/kotlin/android/media/HostAudio.kt
index 81d4e3d6..e632dd1e 100644
--- a/tools/chatgui-android/router-tests/src/main/kotlin/android/media/HostAudio.kt
+++ b/tools/chatgui-android/router-tests/src/main/kotlin/android/media/HostAudio.kt
@@ -20,6 +20,7 @@ class AudioDeviceInfo(val id: Int, val type: Int, val isSink: Boolean, val isSou
 class AudioManager {
     companion object {
         const val GET_DEVICES_ALL = 3
+        const val GET_DEVICES_OUTPUTS = 2
         const val AUDIO_SESSION_ID_GENERATE = 0
         const val RINGER_MODE_SILENT = 0; const val RINGER_MODE_VIBRATE = 1; const val RINGER_MODE_NORMAL = 2
         const val STREAM_RING = 2
@@ -68,6 +69,14 @@ class AudioManager {
     var mode = 0
         set(value) { operation("mode=$value"); field = value; operation("mode after=$value") }
     val callbacks = mutableSetOf<AudioDeviceCallback>()
+    fun interface OnCommunicationDeviceChangedListener { fun onCommunicationDeviceChanged(device: AudioDeviceInfo?) }
+    val communicationListeners = mutableSetOf<OnCommunicationDeviceChangedListener>()
+    fun addOnCommunicationDeviceChangedListener(executor: java.util.concurrent.Executor, listener: OnCommunicationDeviceChangedListener) {
+        operation("communication add"); communicationListeners.add(listener); operation("communication add after")
+    }
+    fun removeOnCommunicationDeviceChangedListener(listener: OnCommunicationDeviceChangedListener) {
+        operation("communication remove"); communicationListeners.remove(listener); operation("communication remove after")
+    }
     val callbackHistory = mutableListOf<AudioDeviceCallback>()
     var devices = arrayOf(AudioDeviceInfo(1, 2, true, false, "speaker"), AudioDeviceInfo(2, 15, false, true, "mic"))
     var communicationDevices: List<AudioDeviceInfo>? = null
@@ -89,7 +98,10 @@ class AudioManager {
         callbacks.remove(callback) // Android допускает отсутствие такой регистрации.
         operation("unregister after")
     }
-    fun getDevices(flags: Int): Array<AudioDeviceInfo> { operation("devices"); check(flags == GET_DEVICES_ALL); return devices.copyOf() }
+    fun getDevices(flags: Int): Array<AudioDeviceInfo> {
+        operation("devices"); check(flags == GET_DEVICES_ALL || flags == GET_DEVICES_OUTPUTS)
+        return devices.filter { flags == GET_DEVICES_ALL || it.isSink }.toTypedArray()
+    }
     fun setCommunicationDevice(device: AudioDeviceInfo): Boolean {
         operation("select=${device.id}")
         if (!acceptCommunicationDevice || device !in availableCommunicationDevices) return false
diff --git a/tools/chatgui-android/router-tests/src/main/kotlin/android/media/HostTracks.kt b/tools/chatgui-android/router-tests/src/main/kotlin/android/media/HostTracks.kt
index e81a9fe5..505282b5 100644
--- a/tools/chatgui-android/router-tests/src/main/kotlin/android/media/HostTracks.kt
+++ b/tools/chatgui-android/router-tests/src/main/kotlin/android/media/HostTracks.kt
@@ -11,6 +11,8 @@ interface AudioRouting {
 class AudioTrack(val id: Int) : AudioRouting {
     companion object {
         const val MODE_STREAM = 1
+        const val STATE_INITIALIZED = 1; const val PLAYSTATE_STOPPED = 1; const val PLAYSTATE_PLAYING = 3
+        const val WRITE_NON_BLOCKING = 1; const val ERROR_DEAD_OBJECT = -6; const val PERFORMANCE_MODE_LOW_LATENCY = 1
         private var nextId = 100
         val created = mutableListOf<AudioTrack>()
         var nextFailures = emptySet<String>()
@@ -24,8 +26,22 @@ class AudioTrack(val id: Int) : AudioRouting {
         created.add(this)
     }
     private var head = 0
+    val state: Int get() { access("state"); return if ("uninitialized" in failures) 0 else STATE_INITIALIZED }
+    var playState = PLAYSTATE_STOPPED
+        private set
+    var bufferSizeInFrames = 1920
+        private set
+    val bufferCapacityInFrames = 3840
+    val underrunCount = 0
+    val performanceMode = PERFORMANCE_MODE_LOW_LATENCY
+    var startThresholdInFrames = 1920
+        private set
     val playbackHeadPosition: Int get() { access("head"); return head }
-    fun play() { access("play") }
+    fun play() { access("play"); playState = PLAYSTATE_PLAYING }
+    fun pause() { access("pause"); playState = PLAYSTATE_STOPPED }
+    fun setBufferSizeInFrames(value: Int): Int { access("buffer"); bufferSizeInFrames = value; return value }
+    fun setStartThresholdInFrames(value: Int): Int { access("threshold"); startThresholdInFrames = value; return value }
+    fun getTimestamp(stamp: AudioTimestamp): Boolean { access("timestamp"); return false }
     var interruptOnStop = false
     fun stop() { access("stop"); if (interruptOnStop) Thread.currentThread().interrupt() }
     var releaseCalls = 0
@@ -46,6 +62,11 @@ class AudioTrack(val id: Int) : AudioRouting {
         if (result > 0) head += result / 2
         return result
     }
+    fun write(samples: ShortArray, offset: Int, count: Int, mode: Int): Int {
+        check(mode == WRITE_NON_BLOCKING)
+        Thread.sleep(2)
+        return write(samples, offset, count)
+    }
     data class Write(val offset: Int, val count: Int, val result: Int, val pcm: ShortArray)
     val writes = LinkedBlockingDeque<Write>(64)
     @Volatile var onWrite: () -> Unit = {}
@@ -87,15 +108,78 @@ class AudioTrack(val id: Int) : AudioRouting {
         return true
     }
     fun deliver(index: Int) { history[index].onRoutingChanged(this) }
+    class Builder {
+        private var size = 3840
+        fun setAudioAttributes(value: AudioAttributes) = apply {}
+        fun setAudioFormat(value: AudioFormat) = apply {}
+        fun setBufferSizeInBytes(value: Int) = apply { size = value }
+        fun setTransferMode(value: Int) = apply { check(value == MODE_STREAM) }
+        fun setPerformanceMode(value: Int) = apply { check(value == PERFORMANCE_MODE_LOW_LATENCY) }
+        fun build() = AudioTrack(AudioAttributes.Builder().build(), AudioFormat(), size, MODE_STREAM, 0)
+    }
 }
 
 /** Конфигурация stereo PCM для настоящего RadioAudioEngine, без устройства вывода. */
 class AudioFormat {
-    companion object { const val CHANNEL_OUT_STEREO = 12; const val ENCODING_PCM_16BIT = 2 }
+    companion object {
+        const val CHANNEL_OUT_STEREO = 12; const val CHANNEL_OUT_MONO = 4; const val CHANNEL_IN_MONO = 16
+        const val ENCODING_PCM_16BIT = 2
+    }
     class Builder {
         fun setSampleRate(value: Int) = apply { check(value == 48000) }
         fun setEncoding(value: Int) = apply { check(value == ENCODING_PCM_16BIT) }
-        fun setChannelMask(value: Int) = apply { check(value == CHANNEL_OUT_STEREO) }
+        fun setChannelMask(value: Int) = apply { check(value == CHANNEL_OUT_STEREO || value == CHANNEL_OUT_MONO) }
         fun build() = AudioFormat()
     }
 }
+
+class AudioTimestamp {
+    companion object { const val TIMEBASE_MONOTONIC = 0 }
+    var framePosition = 0L
+    var nanoTime = 0L
+}
+
+object MediaRecorder { object AudioSource { const val VOICE_COMMUNICATION = 7 } }
+
+/** Настоящий capture worker блокируется в read до кадра/stop; отказы до/после release независимы. */
+class AudioRecord(source: Int, rate: Int, channels: Int, encoding: Int, size: Int) : AudioRouting {
+    companion object {
+        const val STATE_INITIALIZED = 1; const val RECORDSTATE_RECORDING = 3; const val READ_BLOCKING = 0; const val SUCCESS = 0
+        val created = mutableListOf<AudioRecord>()
+        var nextFailures = emptySet<String>()
+        fun getMinBufferSize(rate: Int, channels: Int, encoding: Int) = 1920
+    }
+    @Volatile var failures = nextFailures
+    @Volatile var released = false
+    var releaseCalls = 0
+        private set
+    private val monitor = Object()
+    val state: Int get() { access("state"); return if ("uninitialized" in failures) 0 else STATE_INITIALIZED }
+    @Volatile var recordingState = 1
+        private set
+    var preferredDevice: AudioDeviceInfo? = null
+        private set
+    val routedDevice: AudioDeviceInfo? get() = preferredDevice
+    val listeners = mutableSetOf<AudioRouting.OnRoutingChangedListener>()
+    init { check("create" !in failures); created.add(this) }
+    private fun access(operation: String) { check(!released && operation !in failures) { "record failed: $operation" } }
+    fun startRecording() { access("start"); recordingState = RECORDSTATE_RECORDING }
+    fun stop() { access("stop"); synchronized(monitor) { recordingState = 1; monitor.notifyAll() } }
+    fun release() {
+        releaseCalls++
+        check("release" !in failures) { "record release failed" }
+        released = true; synchronized(monitor) { recordingState = 1; monitor.notifyAll() }
+        check("release after" !in failures) { "record release failed after effect" }
+    }
+    fun read(out: ShortArray, offset: Int, count: Int, mode: Int): Int {
+        access("read"); check(mode == READ_BLOCKING)
+        synchronized(monitor) { if (recordingState == RECORDSTATE_RECORDING) monitor.wait(20) }
+        if (recordingState != RECORDSTATE_RECORDING) return -3
+        out.fill(1, offset, offset + count); return count
+    }
+    fun getTimestamp(stamp: AudioTimestamp, base: Int): Int { access("timestamp"); return -3 }
+    fun setPreferredDevice(device: AudioDeviceInfo?): Boolean { access("prefer"); preferredDevice = device; return true }
+    fun addOnRoutingChangedListener(listener: AudioRouting.OnRoutingChangedListener, handler: Handler) {
+        access("add listener"); listeners.add(listener); access("add listener after")
+    }
+}