> For the complete documentation index, see [llms.txt](https://library.zoom.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://library.zoom.com/technical-library/zh-tw/guan-li-yuan-zhuan-qu/network-management/quality-of-service-and-network-best-practices-explainer/how-zoom-audio-and-video-codecs-affect-bandwidth-usage.md).

# Zoom 音訊與視訊編解碼器如何影響頻寬使用量

#### <mark style="color:藍色;">具備 Zoom 功能的裝置和 Zoom 產品會利用專有編解碼器技術來適應網路狀況和 CPU 使用量</mark> <a href="#cfl101gciai2" id="cfl101gciai2"></a>

Zoom 在應用層的自適應編解碼器會透過我們所稱的「反應式 QoS 層」來最佳化效能。Zoom 應用程式會在時間上（每秒幀數）和空間上（解析度）調整視訊串流。

{% hint style="success" %}
**範例**

如果 Zoom Workplace 桌面應用程式以每秒 30 幀傳送 720P 解析度，而反應式 QOS 層偵測到 CPU 使用率很高，應用程式會嘗試維持相同解析度，但將每秒幀數調整為 15，以減少 CPU 負載。如果反應式 QOS 層偵測到裝置本身的網路 I/O 成為瓶頸，自適應編解碼器就會降低所有傳送／接收視訊串流的解析度，以在可用頻寬內運作。採取這些措施有助於在低頻寬下保留音訊，以維持可理解的通訊。
{% endhint %}

#### <mark style="color:藍色;">Zoom 使用業界領先的音訊與視訊編解碼器，以在不同網路狀況和視訊版面配置下維持高品質媒體</mark> <a href="#id-8gaj771b59fw" id="id-8gaj771b59fw"></a>

下表顯示 Zoom 應用程式和具備 Zoom 功能的裝置所使用的音訊與視訊軟體編解碼器。

| **Zoom 產品**             | **H.264 可擴展視訊編解碼器** | **Opus 音訊編解碼器** | **SILK 音訊編解碼器** |
| ----------------------- | ------------------- | --------------- | --------------- |
| Zoom Workplace 桌面應用程式   | ✔                   | ✔               | ✔               |
| Zoom Workplace 行動應用程式   | ✔                   | ✔               | ✔               |
| Zoom Workplace VDI 應用程式 | ✔                   | ✔               | ✔               |
| Zoom Rooms              | ✔                   | ✔               | ✔               |
| Zoom Phone              |                     | ✔               | ✔               |
| Zoom Contact Center     | ✔                   | ✔               | ✔               |

#### <mark style="color:藍色;">H.264 可擴展視訊編解碼器可適應視訊版面配置、解析度，以及其他會議參與者的視訊解析度</mark> <a href="#id-69joo9v7f5ju" id="id-69joo9v7f5ju"></a>

隨著更多參與者加入 Zoom 會議，他們的 Zoom 應用程式會向您正在使用的 Zoom 應用程式請求特定的視訊解析度。這些請求的解析度品質會根據 *遠端* 會議參與者所選擇的視訊版面配置而有所不同。您的 Zoom 應用程式最多可同時傳輸四路 H.264 SVC（可擴展視訊編解碼器）視訊串流，以配合對端參與者所請求的不同解析度。H.264 SVC 也會適應您在內容共享和版面配置上的視訊設定。

#### <mark style="color:藍色;">Opus 和 SILK 編解碼器用於 Zoom Meetings 和 Webinars 的音訊通訊，以及 Zoom Phone 和 Zoom Contact Center</mark> <a href="#yd9zc77zfnm7" id="yd9zc77zfnm7"></a>

SILK 和 Opus 音訊編解碼器具有自適應能力，會動態調整其位元率以因應即時網路狀況，提供最佳的語音通訊品質。由於這些編解碼器具有動態功能，因此本文件中建議的音訊頻寬配置以範圍方式提供


---

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