Sonos 音响条对不上嘴型,或者看电视时断音?Sonos 音響棒對唔上嘴型,或者睇電視時斷音?Sonos Soundbar Lip Sync Off or TV Audio Cutting Out? Fix It in Order

你係边一种症状？三种先分清你係邊一種症狀？三種先分清Which of the three symptoms do you have?

持续偏移——声音一直早或一直晚,固定量。这类是延迟补偿问题,电视上有设置可以调。逐渐漂移——刚开始对得上,看久了越差越远。这类是时钟不同步,通常和音频格式或串流源有关。间歇断音——声音突然没了一两秒再回来。这类是 HDMI 握手或线材问题。三种的解法完全不同,先分清能省很多时间。持續偏移——聲音一直早或一直遲,固定量。呢類係延遲補償問題,電視上有設定可以調。逐漸漂移——啱開始對得上,睇耐咗越差越遠。呢類係時鐘唔同步,通常同音訊格式或串流源有關。間歇斷音——聲音突然冇咗一兩秒再返嚟。呢類係 HDMI 握手或線材問題。三種嘅解法完全唔同,先分清可以慳好多時間。Constant offset — the sound is consistently early or late by a fixed amount. That is a delay-compensation issue and your TV usually has a setting for it. Gradual drift — it lines up at first and gets worse the longer you watch. That is a clock sync issue, usually tied to the audio format or the streaming source. Intermittent dropouts — audio vanishes for a second or two and returns. That is an HDMI handshake or cable issue. The three have completely different fixes, so naming yours first saves real time.

① eARC 握手:先确认它真的在 eARC 上① eARC 握手:先確認佢真係喺 eARC 上① The eARC handshake: confirm it is actually on eARC

音响条必须接在电视标了 eARC 或 ARC 的那个 HDMI 口上——不是随便哪个。很多电视只有一个口支持,而且标记很小。接错口的典型症状是「有声音但只有立体声」或者「时有时无」。接对之后,在电视设置里确认 HDMI-CEC(各家叫法不同:Anynet+、Bravia Sync、SIMPLINK、Viera Link)是开启的,eARC 也设成「自动」而不是「关」。音響棒必須接喺電視標咗 eARC 或 ARC 嗰個 HDMI 口——唔係求其邊個。好多電視只有一個口支援,而且標記好細。接錯口嘅典型症狀係「有聲但只有立體聲」或者「時有時無」。接啱之後,喺電視設定確認 HDMI-CEC(各家叫法唔同:Anynet+、Bravia Sync、SIMPLINK、Viera Link)係開啟,eARC 亦設成「自動」而唔係「關」。The soundbar has to be on the HDMI port labelled eARC or ARC — not just any port. Many TVs support it on exactly one port, and the label is small. The classic symptom of the wrong port is "there is sound but only stereo" or "it works intermittently". Once it is on the right port, confirm in the TV settings that HDMI-CEC is enabled (vendors call it Anynet+, Bravia Sync, SIMPLINK or Viera Link) and that eARC is set to Auto rather than Off.

握手不稳时,一个可靠的复位顺序是:关电视 → 拔音响条的 HDMI 线 → 拔电视电源等 30 秒 → 通电开机 → 再插 HDMI。顺序有意义,因为 CEC 状态是在开机握手时协商的。握手唔穩時,一個可靠嘅復位次序係:閂電視 → 拔音響棒嘅 HDMI 線 → 拔電視電源等 30 秒 → 通電開機 → 再插 HDMI。次序有意義,因為 CEC 狀態係喺開機握手時協商嘅。When the handshake is unstable, a reliable reset order is: turn the TV off, unplug the soundbar's HDMI cable, unplug the TV from power for 30 seconds, power it back on, then reconnect HDMI. The order matters, because CEC state is negotiated during the power-on handshake.

② 音频格式应该拣 Dolby Digital 定 PCM？② 音訊格式應該揀 Dolby Digital 定 PCM？② Which audio format should the TV send?

电视会按它以为音响条支持的格式来送流。如果协商出错,你会得到断续、爆音,或者干脆没声。在电视的音频输出设置里手动指定格式试两次:先试 PCM(最兼容,如果这样就稳了,说明是格式协商问题),再试 Dolby Digital / 自动。杜比全景声只在 eARC 且线材足够的情况下才成立。電視會按佢以為音響棒支援嘅格式送流。如果協商出錯,你會得到斷續、爆音,或者索性冇聲。喺電視嘅音訊輸出設定手動指定格式試兩次:先試 PCM(最相容,如果咁樣就穩,即係格式協商問題),再試 Dolby Digital / 自動。杜比全景聲只喺 eARC 而且線材足夠嘅情況下先成立。The TV sends whatever format it believes the soundbar supports. When that negotiation goes wrong you get stuttering, popping, or no sound at all. In the TV's audio output settings, force the format twice: try PCM first (the most compatible — if it stabilises, the problem was format negotiation), then try Dolby Digital / Auto. Dolby Atmos only holds up over eARC with a cable that can carry it.

一个常被忽略的点:串流 App 的音轨格式也算数。同一台电视上 Netflix 的 Atmos 音轨断,而普通节目不断,那不是电视的问题,是那条 Atmos 流的带宽需求超过了当前链路。一個經常被忽略嘅點:串流 App 嘅音軌格式都算數。同一台電視上 Netflix 嘅 Atmos 音軌斷,而普通節目唔斷,咁唔係電視嘅問題,係嗰條 Atmos 流嘅頻寬需求超咗目前鏈路。One point that gets missed: the streaming app's track format counts too. If Atmos tracks on Netflix stutter on the same TV where ordinary programmes are fine, that is not the TV — it is that Atmos stream exceeding what the current link can carry.

③ 使唔使关掉电视自己嘅音频处理？③ 使唔使閂咗電視自己嘅音訊處理？③ Should I turn off the TV's own audio processing?

电视上的「音效增强」「虚拟环绕」「自动音量」「夜间模式」都会引入额外延迟,而且延迟量还会随内容变化——这正是「逐渐漂移」的常见来源。既然你已经有音响条,这些处理没有存在意义,全部关掉。同时把电视扬声器设为关闭或「仅外接」,避免两套输出叠加产生回音式的错位。電視上嘅「音效增強」「虛擬環繞」「自動音量」「夜間模式」都會引入額外延遲,而且延遲量仲會隨內容變化——呢個正正係「逐漸漂移」嘅常見來源。既然你已經有音響棒,呢啲處理冇存在意義,全部閂晒。同時把電視喇叭設為關閉或「只外接」,避免兩套輸出疊加產生回音式嘅錯位。The TV's sound enhancement, virtual surround, auto volume levelling and night mode all add latency, and the amount varies with content — which is a common source of gradual drift. Since you already have a soundbar, none of that processing earns its place; switch it all off. Also set the TV speakers to off or external-only, so two outputs do not stack into an echo-like misalignment.

处理关完之后,再用电视自带的「音频延迟 / 唇音同步」滑杆做最后微调。顺序很重要——先关处理再调延迟,否则你调的是一个会变化的量。處理閂晒之後,再用電視自帶嘅「音訊延遲 / 唇音同步」滑桿做最後微調。次序好重要——先閂處理再調延遲,否則你調嘅係一個會變化嘅量。Only after the processing is off should you use the TV's own audio delay or lip-sync slider for the final trim. The order matters: switch off processing first, otherwise you are calibrating against a moving target.

④ 线材和接口④ 線材同接口④ Cable and port

eARC 需要的带宽比普通 HDMI 音频高。用音响条原配的那条线——它是按规格配的。如果原配线不见了或者你换了长线,确认新线标注为 High Speed with Ethernet 或更高等级;劣质长线在 eARC 上的典型表现就是间歇断音。也别经过 HDMI 分配器或切换器,那些设备对 eARC 的支持普遍不完整。eARC 需要嘅頻寬高過普通 HDMI 音訊。用音響棒原配嗰條線——佢係按規格配嘅。如果原配線唔見咗或者你換咗長線,確認新線標註為 High Speed with Ethernet 或更高等級;劣質長線喺 eARC 上嘅典型表現就係間歇斷音。亦唔好經過 HDMI 分配器或切換器,嗰啲裝置對 eARC 嘅支援普遍唔完整。eARC needs more bandwidth than ordinary HDMI audio. Use the cable that shipped with the soundbar — it was specified for the job. If it has gone missing or you swapped in a longer run, confirm the replacement is rated High Speed with Ethernet or better; a poor long cable on eARC shows up precisely as intermittent dropouts. Avoid HDMI splitters and switchers too, as their eARC support is widely incomplete.

换线是这一步里唯一能真正证伪的动作:借一条已知good的短线直连,如果断音消失,原因就定了。換線係呢一步入面唯一真正可以證偽嘅動作:借一條已知冇問題嘅短線直駁,如果斷音消失,原因就定咗。Swapping the cable is the only genuinely falsifying test in this step: borrow a known-good short cable and connect directly. If the dropouts stop, you have your answer.

⑤ 点解分组之后延迟会大咗？⑤ 點解分組之後延遲會大咗？⑤ Why does grouping add more delay?

把音响条和其他房间分组之后,系统要为多房间同步预留缓冲,电视音频的延迟会明显增加。这是设计取舍,不是故障。看电视时把音响条从组里拆出来单独用,唇音会立刻正常。如果你确实想全屋一起听电视,预期就要接受这个延迟。把音響棒同其他房間分組之後,系統要為多房間同步預留緩衝,電視音訊嘅延遲會明顯增加。呢個係設計取捨,唔係故障。睇電視時把音響棒由組裏面拆出嚟單獨用,唇音會即刻正常。如果你真係想全屋一齊聽電視,預期就要接受呢個延遲。Once the soundbar is grouped with other rooms, the system reserves buffer for multi-room sync and TV audio latency rises noticeably. That is a design trade-off, not a fault. Ungroup the soundbar while watching and lip-sync returns immediately. If you genuinely want the whole house on TV audio, that delay is the price.

完全冇声，同断音係咪同一个问题？完全冇聲，同斷音係咪同一個問題？No sound at all — is that the same problem?

如果是从头到尾一点声都没有,先别看延迟那一套。按这个顺序:确认电视音频输出选了外接音响而不是内置扬声器;确认音响条在 Sonos App 里显示为「电视」输入而不是在播音乐;确认它没有被静音或被编进另一个组。这三样占了「完全没声」的绝大多数。如果係由頭到尾少少聲都冇,先唔好睇延遲嗰套。按呢個次序:確認電視音訊輸出揀咗外接音響而唔係內置喇叭;確認音響棒喺 Sonos App 顯示為「電視」輸入而唔係播緊音樂;確認佢冇畀人靜音或者編咗入另一個組。呢三樣佔咗「完全冇聲」嘅絕大多數。If there is no sound at all, set the delay material aside. Go in this order: confirm the TV's audio output is set to the external system rather than its built-in speakers; confirm the soundbar shows the TV input in the Sonos app rather than playing music; and confirm it is neither muted nor pulled into another group. Those three cover the large majority of "no sound at all" cases.

如果音响条根本不出现在 Sonos App 里,那是网络问题不是电视问题,先去看音箱不出现那一篇。如果音響棒根本唔出現喺 Sonos App,咁係網絡問題唔係電視問題,先去睇喇叭唔出現嗰篇。If the soundbar does not appear in the Sonos app at all, that is a network problem rather than a TV problem — start with the speakers-not-showing-up guide instead.

按这个顺序试按呢個次序試The order to work through

1. 确认接在标了 eARC/ARC 的那个 HDMI 口,并开启 HDMI-CEC。確認接喺標咗 eARC/ARC 嗰個 HDMI 口,並開啟 HDMI-CEC。Confirm it is on the port labelled eARC/ARC and that HDMI-CEC is enabled.
2. 关掉电视上所有音效处理,电视扬声器设为关闭。閂晒電視上所有音效處理,電視喇叭設為關閉。Turn off every audio processing option on the TV and set the TV speakers to off.
3. 音频格式先强制 PCM 试一轮,再试 Dolby Digital。音訊格式先強制 PCM 試一輪,再試 Dolby Digital。Force the audio format to PCM for one round, then try Dolby Digital.
4. 做一次电源顺序复位:关电视 → 拔 HDMI → 断电视电源 30 秒 → 开机 → 插回 HDMI。做一次電源次序復位:閂電視 → 拔 HDMI → 斷電視電源 30 秒 → 開機 → 插返 HDMI。Run the power-order reset: TV off, unplug HDMI, unplug the TV for 30 seconds, power on, reconnect HDMI.
5. 换一条已知good的 HDMI 线直连,不经分配器。換一條已知冇問題嘅 HDMI 線直駁,唔經分配器。Swap in a known-good HDMI cable connected directly, with no splitter in between.
6. 最后才用电视的唇音同步滑杆微调。最後先用電視嘅唇音同步滑桿微調。Only then use the TV's lip-sync slider for the final trim.

每步之后看一段真实节目再判断,不要只看几秒测试画面——格式协商和处理延迟都要几十秒才稳定下来。每步之後睇一段真實節目再判斷,唔好只睇幾秒測試畫面——格式協商同處理延遲都要幾十秒先穩定落嚟。After each step, watch a real programme before judging rather than a few seconds of test material — format negotiation and processing latency both take tens of seconds to settle.

官方参考官方參考Official references

• 电视音频中断或跳音電視音訊中斷或跳音TV audio stops or skips
• 电视画面和声音不同步電視畫面同聲音唔同步TV audio and video are out of sync
• 接电视时出错駁電視時出錯Error when connecting a home theatre product to TV
• 家庭影院音箱不支持的音频家庭影院喇叭唔支援嘅音訊Unsupported audio on your home theatre speaker