diff --git a/lifelog-recorder/app/src/main/kotlin/com/lemon/lifelog/MainActivity.kt b/lifelog-recorder/app/src/main/kotlin/com/lemon/lifelog/MainActivity.kt
index 14872ff..13a0d0f 100644
--- a/lifelog-recorder/app/src/main/kotlin/com/lemon/lifelog/MainActivity.kt
+++ b/lifelog-recorder/app/src/main/kotlin/com/lemon/lifelog/MainActivity.kt
@@ -86,6 +86,7 @@ import com.lemon.lifelog.chat.ChatConfig
 import com.lemon.lifelog.summary.SummaryProgress
 import com.lemon.lifelog.summary.SummaryRunLog
 import com.lemon.lifelog.data.BlockRow
+import com.lemon.lifelog.data.Person
 import com.lemon.lifelog.data.Repository
 import com.lemon.lifelog.data.SegmentRow
 import com.lemon.lifelog.data.SpeakerProfile
@@ -843,6 +844,11 @@ private fun SpeakersTab(
     val ctx = LocalContext.current
     val counts by repo.segments.observeSpeakerCounts().collectAsState(initial = emptyList())
     val countMap = remember(counts) { counts.associate { it.speakerId to it.count } }
+    // 声纹↔人物桥：哪个声纹已被「识别为」某人物（persons.voiceSpeakerId）。
+    val persons by repo.persons.observeAll().collectAsState(initial = emptyList())
+    val personBySpeaker = remember(persons) {
+        persons.filter { it.voiceSpeakerId != null }.associateBy { it.voiceSpeakerId!! }
+    }
     var reclustering by remember { mutableStateOf(false) }
     var reclusterMsg by remember { mutableStateOf("") }
     var clearConfirm by remember { mutableStateOf(false) }
@@ -850,6 +856,28 @@ private fun SpeakersTab(
     var renameFor by remember { mutableStateOf<SpeakerProfile?>(null) }
     var mergeFor by remember { mutableStateOf<SpeakerProfile?>(null) }
     var deleteFor by remember { mutableStateOf<SpeakerProfile?>(null) }
+    var identifyFor by remember { mutableStateOf<SpeakerProfile?>(null) }
+
+    // 把声纹 sp「识别为」已有人物 pid：先把该声纹从任何人物解开（保 1:1），再绑到 pid 并纳入管理。
+    fun identifyExisting(sp: SpeakerProfile, pid: Long) {
+        scope.launch {
+            withContext(Dispatchers.IO) {
+                repo.persons.clearVoiceSpeaker(sp.id)
+                repo.persons.linkVoice(pid, sp.id)
+                repo.persons.setManaged(pid, true)
+                repo.persons.touch(pid, System.currentTimeMillis())
+            }
+        }
+    }
+    // 把声纹 sp 新建成一个人物（直接 managed）。
+    fun identifyNew(sp: SpeakerProfile, name: String) {
+        scope.launch {
+            withContext(Dispatchers.IO) {
+                repo.persons.clearVoiceSpeaker(sp.id)
+                repo.persons.insert(Person(name = name.trim(), voiceSpeakerId = sp.id, managed = true))
+            }
+        }
+    }
 
     Column(modifier = Modifier.fillMaxSize().padding(16.dp)) {
         Row(verticalAlignment = Alignment.CenterVertically, horizontalArrangement = Arrangement.spacedBy(8.dp)) {
@@ -881,7 +909,7 @@ private fun SpeakersTab(
             Text(reclusterMsg, style = MaterialTheme.typography.bodySmall)
         }
         Text(
-            "自动发现的说话人会命名为「说话人N」。点击进入按 TA 筛选时间轴；可重命名 / 合并 / 删除。",
+            "自动发现的说话人会命名为「说话人N」。点「识别为人物」把这把声音认成 CRM 里的人——之后时间轴/各处都显示人物名，TA 的录音自动归到人物档案。",
             style = MaterialTheme.typography.bodySmall,
         )
         Spacer(Modifier.height(8.dp))
@@ -892,6 +920,7 @@ private fun SpeakersTab(
 
         LazyColumn(verticalArrangement = Arrangement.spacedBy(4.dp)) {
             items(speakers, key = { it.id }) { sp ->
+                val person = personBySpeaker[sp.id]
                 Card(modifier = Modifier.fillMaxWidth().clickable { onFilterBySpeaker(sp.id) }) {
                     Column(modifier = Modifier.padding(12.dp)) {
                         Text(sp.name, style = MaterialTheme.typography.titleSmall)
@@ -899,7 +928,15 @@ private fun SpeakersTab(
                             "归属 ${countMap[sp.id] ?: 0} 段 · 质心样本 ${sp.sampleCount}",
                             style = MaterialTheme.typography.labelSmall,
                         )
+                        Text(
+                            if (person != null) "✓ 已识别为人物：${person.name}" else "○ 未识别为人物",
+                            style = MaterialTheme.typography.labelMedium,
+                            color = if (person != null) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.onSurfaceVariant,
+                        )
                         Row(horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+                            TextButton(onClick = { identifyFor = sp }) {
+                                Text(if (person != null) "改识别" else "识别为人物")
+                            }
                             TextButton(onClick = { renameFor = sp }) { Text("重命名") }
                             TextButton(onClick = { mergeFor = sp }) { Text("合并到…") }
                             TextButton(onClick = { deleteFor = sp }) { Text("删除") }
@@ -910,6 +947,21 @@ private fun SpeakersTab(
         }
     }
 
+    identifyFor?.let { sp ->
+        IdentifySpeakerSheet(
+            speaker = sp,
+            currentPerson = personBySpeaker[sp.id],
+            persons = persons,
+            onDismiss = { identifyFor = null },
+            onPickExisting = { pid -> identifyFor = null; identifyExisting(sp, pid) },
+            onCreateNew = { name -> identifyFor = null; identifyNew(sp, name) },
+            onUnlink = {
+                identifyFor = null
+                scope.launch { withContext(Dispatchers.IO) { repo.persons.clearVoiceSpeaker(sp.id) } }
+            },
+        )
+    }
+
     renameFor?.let { sp ->
         RenameSpeakerDialog(
             currentName = sp.name,
@@ -1259,8 +1311,9 @@ private fun SegmentActionSheet(
         ) {
             Text("段 #${row.id}  ·  ${"%.1fs".format(row.durationMs / 1000.0)}", style = MaterialTheme.typography.titleMedium)
             row.text?.let { Text(it, style = MaterialTheme.typography.bodyMedium) }
+            row.personName?.let { Text("👤 人物：$it", style = MaterialTheme.typography.labelMedium, color = MaterialTheme.colorScheme.primary) }
             row.speakerName?.let { name ->
-                Text("已识别：$name (sim=${"%.2f".format(row.speakerSim ?: 0f)})", style = MaterialTheme.typography.labelMedium)
+                Text("声纹：$name (sim=${"%.2f".format(row.speakerSim ?: 0f)})", style = MaterialTheme.typography.labelMedium)
             }
             Spacer(Modifier.height(4.dp))
             Button(onClick = onPlay, modifier = Modifier.fillMaxWidth()) { Text(if (isPlaying) "■ 停止" else "▶ 播放原音") }
@@ -1296,38 +1349,135 @@ private fun RenameSpeakerDialog(currentName: String, onDismiss: () -> Unit, onCo
 }
 
 @Composable
+@OptIn(ExperimentalMaterial3Api::class)
 private fun ReassignSpeakerDialog(
     row: SegmentRow,
     speakers: List<SpeakerProfile>,
     onDismiss: () -> Unit,
     onPick: (Long?) -> Unit,
 ) {
-    AlertDialog(
-        onDismissRequest = onDismiss,
-        title = { Text("改派说话人") },
-        text = {
-            Column {
-                Text("段 #${row.id} 当前：${row.speakerName ?: "未归属"}", style = MaterialTheme.typography.bodySmall)
-                Spacer(Modifier.height(8.dp))
-                Row(modifier = Modifier.fillMaxWidth().clickable { onPick(null) }.padding(vertical = 8.dp),
-                    verticalAlignment = Alignment.CenterVertically) {
-                    RadioButton(selected = row.speakerId == null, onClick = { onPick(null) })
-                    Text("（清除归属）")
+    val sheetState = rememberModalBottomSheetState()
+    var query by remember { mutableStateOf("") }
+    val shown = remember(speakers, query) {
+        val q = query.trim()
+        if (q.isBlank()) speakers else speakers.filter { it.name.contains(q, true) }
+    }
+    ModalBottomSheet(onDismissRequest = onDismiss, sheetState = sheetState) {
+        Column(modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp).padding(bottom = 16.dp)) {
+            Text("改派说话人", style = MaterialTheme.typography.titleMedium)
+            Text("段 #${row.id} 当前：${row.speakerName ?: "未归属"}", style = MaterialTheme.typography.bodySmall)
+            Text("点名字即改派", style = MaterialTheme.typography.labelSmall)
+            Spacer(Modifier.height(8.dp))
+            OutlinedTextField(
+                value = query, onValueChange = { query = it }, singleLine = true,
+                placeholder = { Text("搜索说话人（共 ${speakers.size}）") },
+                modifier = Modifier.fillMaxWidth(),
+            )
+            Spacer(Modifier.height(8.dp))
+            LazyColumn(modifier = Modifier.fillMaxWidth().heightIn(max = 360.dp)) {
+                item {
+                    Row(
+                        modifier = Modifier.fillMaxWidth().clickable { onPick(null) }.padding(vertical = 10.dp),
+                        verticalAlignment = Alignment.CenterVertically,
+                    ) {
+                        RadioButton(selected = row.speakerId == null, onClick = { onPick(null) })
+                        Text("（清除归属）")
+                    }
                 }
-                speakers.forEach { sp ->
-                    Row(modifier = Modifier.fillMaxWidth().clickable { onPick(sp.id) }.padding(vertical = 8.dp),
-                        verticalAlignment = Alignment.CenterVertically) {
+                items(shown, key = { it.id }) { sp ->
+                    Row(
+                        modifier = Modifier.fillMaxWidth().clickable { onPick(sp.id) }.padding(vertical = 10.dp),
+                        verticalAlignment = Alignment.CenterVertically,
+                    ) {
                         RadioButton(selected = row.speakerId == sp.id, onClick = { onPick(sp.id) })
                         Text(sp.name)
                     }
                 }
             }
-        },
-        confirmButton = {},
-        dismissButton = { TextButton(onClick = onDismiss) { Text("取消") } },
-    )
+        }
+    }
 }
 
+/**
+ * 「识别为人物」底部面板：把一个声纹认成 CRM 里的人物。
+ * 输入框既是搜索、也是新建名字：输名字→点已有匹配项绑定，或点「➕ 新建人物」按这名字建。
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun IdentifySpeakerSheet(
+    speaker: SpeakerProfile,
+    currentPerson: Person?,
+    persons: List<Person>,
+    onDismiss: () -> Unit,
+    onPickExisting: (Long) -> Unit,
+    onCreateNew: (String) -> Unit,
+    onUnlink: () -> Unit,
+) {
+    val sheetState = rememberModalBottomSheetState()
+    var query by remember { mutableStateOf("") }
+    val q = query.trim()
+    val shown = remember(persons, q) {
+        if (q.isBlank()) persons
+        else persons.filter {
+            it.name.contains(q, true) || it.nickname?.contains(q, true) == true ||
+                it.remark?.contains(q, true) == true || it.alias?.contains(q, true) == true ||
+                it.pinyin?.contains(q, true) == true
+        }
+    }
+    val newName = q.ifBlank { speaker.name }
+    val exactExists = persons.any { it.name.equals(newName, true) }
+
+    ModalBottomSheet(onDismissRequest = onDismiss, sheetState = sheetState) {
+        Column(modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp).padding(bottom = 16.dp)) {
+            Text("把「${speaker.name}」识别为人物", style = MaterialTheme.typography.titleMedium)
+            currentPerson?.let {
+                Text("当前已识别为：${it.name}", style = MaterialTheme.typography.labelMedium, color = MaterialTheme.colorScheme.primary)
+            }
+            Text("输入名字搜索已有人物，或新建一个", style = MaterialTheme.typography.labelSmall)
+            Spacer(Modifier.height(8.dp))
+            OutlinedTextField(
+                value = query, onValueChange = { query = it }, singleLine = true,
+                placeholder = { Text("搜索 / 新人物名字") }, modifier = Modifier.fillMaxWidth(),
+            )
+            Spacer(Modifier.height(8.dp))
+            if (!exactExists && newName.isNotBlank()) {
+                Row(
+                    modifier = Modifier.fillMaxWidth().clickable { onCreateNew(newName) }.padding(vertical = 12.dp),
+                    verticalAlignment = Alignment.CenterVertically,
+                ) {
+                    Text("➕ 新建人物「$newName」并绑定", style = MaterialTheme.typography.bodyLarge, color = MaterialTheme.colorScheme.primary)
+                }
+                HorizontalDivider()
+            }
+            LazyColumn(modifier = Modifier.fillMaxWidth().heightIn(max = 340.dp)) {
+                items(shown, key = { it.id }) { p ->
+                    Row(
+                        modifier = Modifier.fillMaxWidth().clickable { onPickExisting(p.id) }.padding(vertical = 10.dp),
+                        verticalAlignment = Alignment.CenterVertically, horizontalArrangement = Arrangement.spacedBy(8.dp),
+                    ) {
+                        Column(Modifier.weight(1f)) {
+                            Text(p.name, style = MaterialTheme.typography.bodyLarge)
+                            val src = when {
+                                p.contactRef?.startsWith("wechat:") == true -> "微信"
+                                p.contactRef?.startsWith("phone:") == true -> "手机"
+                                else -> null
+                            }
+                            val sub = listOfNotNull(src, p.voiceSpeakerId?.let { "已绑声纹" }).joinToString(" · ")
+                            if (sub.isNotBlank()) Text(sub, style = MaterialTheme.typography.labelSmall)
+                        }
+                        if (p.voiceSpeakerId == speaker.id) Text("✓", color = MaterialTheme.colorScheme.primary)
+                    }
+                }
+            }
+            if (currentPerson != null) {
+                Spacer(Modifier.height(8.dp))
+                TextButton(onClick = onUnlink) { Text("取消识别（解绑人物）") }
+            }
+        }
+    }
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 private fun MergeSpeakerDialog(
     from: SpeakerProfile,
@@ -1335,23 +1485,39 @@ private fun MergeSpeakerDialog(
     onDismiss: () -> Unit,
     onPick: (Long) -> Unit,
 ) {
-    AlertDialog(
-        onDismissRequest = onDismiss,
-        title = { Text("把「${from.name}」合并到…") },
-        text = {
-            Column {
-                if (others.isEmpty()) Text("没有其它说话人可合并。")
-                others.forEach { sp ->
-                    Row(modifier = Modifier.fillMaxWidth().clickable { onPick(sp.id) }.padding(vertical = 10.dp),
-                        verticalAlignment = Alignment.CenterVertically) {
-                        Text(sp.name)
+    val sheetState = rememberModalBottomSheetState()
+    var query by remember { mutableStateOf("") }
+    val shown = remember(others, query) {
+        val q = query.trim()
+        if (q.isBlank()) others else others.filter { it.name.contains(q, true) }
+    }
+    ModalBottomSheet(onDismissRequest = onDismiss, sheetState = sheetState) {
+        Column(modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp).padding(bottom = 16.dp)) {
+            Text("把「${from.name}」合并到…", style = MaterialTheme.typography.titleMedium)
+            Text("点名字即合并", style = MaterialTheme.typography.labelSmall)
+            Spacer(Modifier.height(8.dp))
+            if (others.isEmpty()) {
+                Text("没有其它说话人可合并。", style = MaterialTheme.typography.bodyMedium)
+            } else {
+                OutlinedTextField(
+                    value = query, onValueChange = { query = it }, singleLine = true,
+                    placeholder = { Text("搜索说话人（共 ${others.size}）") },
+                    modifier = Modifier.fillMaxWidth(),
+                )
+                Spacer(Modifier.height(8.dp))
+                LazyColumn(modifier = Modifier.fillMaxWidth().heightIn(max = 360.dp)) {
+                    items(shown, key = { it.id }) { sp ->
+                        Row(
+                            modifier = Modifier.fillMaxWidth().clickable { onPick(sp.id) }.padding(vertical = 12.dp),
+                            verticalAlignment = Alignment.CenterVertically,
+                        ) {
+                            Text(sp.name, style = MaterialTheme.typography.bodyLarge)
+                        }
                     }
                 }
             }
-        },
-        confirmButton = {},
-        dismissButton = { TextButton(onClick = onDismiss) { Text("取消") } },
-    )
+        }
+    }
 }
 
 @Composable
@@ -1426,7 +1592,9 @@ private fun TimelineRow(
     onPlay: (() -> Unit)? = null,
 ) {
     val time = TIMELINE_FMT.format(Date(row.startTs))
+    // 已「识别为人物」的声纹，时间轴直接显示人物名（带👤），否则退回说话人名/相似度。
     val speakerLabel = when {
+        row.personName != null -> "👤 ${row.personName}"
         row.speakerName != null && row.speakerSim != null -> "${row.speakerName} (${"%.2f".format(row.speakerSim)})"
         row.speakerName != null -> row.speakerName
         row.speakerSim != null -> "未匹配 (${"%.2f".format(row.speakerSim)})"
diff --git a/lifelog-recorder/app/src/main/kotlin/com/lemon/lifelog/PhotologViewModel.kt b/lifelog-recorder/app/src/main/kotlin/com/lemon/lifelog/PhotologViewModel.kt
index 5c566aa..f0dd756 100644
--- a/lifelog-recorder/app/src/main/kotlin/com/lemon/lifelog/PhotologViewModel.kt
+++ b/lifelog-recorder/app/src/main/kotlin/com/lemon/lifelog/PhotologViewModel.kt
@@ -249,10 +249,13 @@ class PhotologViewModel(app: Application) : AndroidViewModel(app) {
     /** 融合：把一个声纹绑到联系人（null = 解绑）。绑定后档案页"录音列表"才有内容。 */
     fun bindVoice(personId: Long, speakerId: Long?) {
         viewModelScope.launch {
-            repo.persons.linkVoice(personId, speakerId)
             if (speakerId != null) {
+                repo.persons.clearVoiceSpeaker(speakerId) // 保声纹↔人物 1:1：先从别的人物解开
+                repo.persons.linkVoice(personId, speakerId)
                 repo.persons.touch(personId, System.currentTimeMillis())
                 repo.persons.setManaged(personId, true) // 绑了声纹 = 我关心 → 纳入管理
+            } else {
+                repo.persons.linkVoice(personId, null)
             }
         }
     }
diff --git a/lifelog-recorder/app/src/main/kotlin/com/lemon/lifelog/data/Daos.kt b/lifelog-recorder/app/src/main/kotlin/com/lemon/lifelog/data/Daos.kt
index 00ac268..9423df0 100644
--- a/lifelog-recorder/app/src/main/kotlin/com/lemon/lifelog/data/Daos.kt
+++ b/lifelog-recorder/app/src/main/kotlin/com/lemon/lifelog/data/Daos.kt
@@ -10,11 +10,16 @@ data class SegmentRow(
     val id: Long,
     val startTs: Long,
     val durationMs: Long,
+    /** 该 turn 在「块完整录音」(audioPath) 内的起始偏移(ms)。播放/切片必须带它，否则播整块对不上文字。 */
+    val audioStartMs: Long = 0,
     val text: String?,
     val audioPath: String,
     val speakerId: Long?,
     val speakerSim: Float?,
     val speakerName: String?,
+    /** 该声纹已「识别为」的人物（persons.voiceSpeakerId = speakerId）；null = 还没认成人物。 */
+    val personId: Long? = null,
+    val personName: String? = null,
 )
 
 data class SpeakerCount(
@@ -122,12 +127,15 @@ interface SegmentDao {
     @Query(
         """
         SELECT s.id AS id, s.startTs AS startTs, s.durationMs AS durationMs,
+               s.audioStartMs AS audioStartMs,
                t.text AS text, s.audioPath AS audioPath,
                s.speakerId AS speakerId, s.speakerSim AS speakerSim,
-               sp.name AS speakerName
+               sp.name AS speakerName,
+               p.id AS personId, p.name AS personName
         FROM segments s
         LEFT JOIN transcripts t ON t.segmentId = s.id
         LEFT JOIN speaker_profiles sp ON sp.id = s.speakerId
+        LEFT JOIN persons p ON p.voiceSpeakerId = s.speakerId
         ORDER BY s.startTs DESC
         LIMIT :limit
         """,
@@ -160,11 +168,14 @@ interface SegmentDao {
     @Query(
         """
         SELECT s.id AS id, s.startTs AS startTs, s.durationMs AS durationMs,
+               s.audioStartMs AS audioStartMs,
                t.text AS text, s.audioPath AS audioPath,
-               s.speakerId AS speakerId, s.speakerSim AS speakerSim, sp.name AS speakerName
+               s.speakerId AS speakerId, s.speakerSim AS speakerSim, sp.name AS speakerName,
+               p.id AS personId, p.name AS personName
         FROM segments s
         LEFT JOIN transcripts t ON t.segmentId = s.id
         LEFT JOIN speaker_profiles sp ON sp.id = s.speakerId
+        LEFT JOIN persons p ON p.voiceSpeakerId = s.speakerId
         WHERE s.speakerId = :speakerId
         ORDER BY s.startTs DESC
         LIMIT :limit
@@ -176,12 +187,15 @@ interface SegmentDao {
     @Query(
         """
         SELECT s.id AS id, s.startTs AS startTs, s.durationMs AS durationMs,
+               s.audioStartMs AS audioStartMs,
                t.text AS text, s.audioPath AS audioPath,
                s.speakerId AS speakerId, s.speakerSim AS speakerSim,
-               sp.name AS speakerName
+               sp.name AS speakerName,
+               p.id AS personId, p.name AS personName
         FROM segments s
         LEFT JOIN transcripts t ON t.segmentId = s.id
         LEFT JOIN speaker_profiles sp ON sp.id = s.speakerId
+        LEFT JOIN persons p ON p.voiceSpeakerId = s.speakerId
         ORDER BY s.startTs DESC
         LIMIT :limit
         """,
@@ -196,12 +210,15 @@ interface SegmentDao {
     @Query(
         """
         SELECT s.id AS id, s.startTs AS startTs, s.durationMs AS durationMs,
+               s.audioStartMs AS audioStartMs,
                t.text AS text, s.audioPath AS audioPath,
                s.speakerId AS speakerId, s.speakerSim AS speakerSim,
-               sp.name AS speakerName
+               sp.name AS speakerName,
+               p.id AS personId, p.name AS personName
         FROM segments s
         INNER JOIN transcripts t ON t.segmentId = s.id
         LEFT JOIN speaker_profiles sp ON sp.id = s.speakerId
+        LEFT JOIN persons p ON p.voiceSpeakerId = s.speakerId
         WHERE t.text LIKE '%' || :kw || '%'
         ORDER BY s.startTs DESC
         LIMIT :limit
@@ -213,13 +230,16 @@ interface SegmentDao {
     @Query(
         """
         SELECT s.id AS id, s.startTs AS startTs, s.durationMs AS durationMs,
+               s.audioStartMs AS audioStartMs,
                t.text AS text, s.audioPath AS audioPath,
                s.speakerId AS speakerId, s.speakerSim AS speakerSim,
-               sp.name AS speakerName
+               sp.name AS speakerName,
+               p.id AS personId, p.name AS personName
         FROM segments s
         INNER JOIN transcripts t ON t.segmentId = s.id
         INNER JOIN transcript_fts fts ON fts.docid = t.segmentId
         LEFT JOIN speaker_profiles sp ON sp.id = s.speakerId
+        LEFT JOIN persons p ON p.voiceSpeakerId = s.speakerId
         WHERE transcript_fts MATCH :query
         ORDER BY s.startTs DESC
         LIMIT :limit
@@ -357,6 +377,14 @@ interface PersonDao {
     @Query("UPDATE persons SET voiceSpeakerId = :speakerId WHERE id = :id")
     suspend fun linkVoice(id: Long, speakerId: Long?)
 
+    /** 反查：哪个人物已「识别为」这个声纹（声纹↔人物 1:1）。 */
+    @Query("SELECT * FROM persons WHERE voiceSpeakerId = :speakerId LIMIT 1")
+    suspend fun getByVoiceSpeaker(speakerId: Long): Person?
+
+    /** 把某声纹从任何已绑它的人物上解开（重新识别为另一人前先调，保 1:1）。 */
+    @Query("UPDATE persons SET voiceSpeakerId = NULL WHERE voiceSpeakerId = :speakerId")
+    suspend fun clearVoiceSpeaker(speakerId: Long)
+
     @Query("DELETE FROM persons WHERE id = :id")
     suspend fun delete(id: Long)
 }