simulcast and more

Author: vac0224

articles/communication-services/concepts/voice-video-calling/simulcast.md

@@ -1,33 +1,40 @@
 ---
-title: Azure Communication Services Simulcast
-titleSuffix: An Azure Communication Services concept document
-description: Overview of Simulcast - how sending multiple video quality streams helps overall call quality.
+title: Simulcast
+titleSuffix: An Azure Communication Services article
+description: This article describes how to send multiple video quality streams helps overall call quality.
 author: sloanster
 manager: chpalm
 services: azure-communication-services
 
 ms.author: micahvivion
-ms.date: 02/19/2024
+ms.date: 06/26/2025
 ms.topic: conceptual
 ms.subservice: calling
 ms.service: azure-communication-services
 ---
-# What is Simulcast?
-Simulcast is a technique that allows video streaming applications to send multiple versions of the same video content at different resolutions and bitrates. This way, the receiver can choose the most suitable version based on their network conditions and device capabilities. 
+# Simulcast
 
-The lack of simulcast support leads to a degraded video experience in calls with three or more participants. If a video receiver with poor network conditions joins the conference, it impacts the quality of video received from the sender without simulcast support for all other participants. The video sender optimizes its video feed against the lowest common denominator. When simulcast streaming is available the potential impact of one person affecting the entire streaming quality experience is minimized.
+Simulcast is a technique that enables video streaming applications to send multiple versions of the same video content at different resolutions and bitrates. This way, the receiver can choose the most suitable version based on their network conditions and device capabilities. 
 
-Simulcast is supported on Azure Communication Services SDK for WebJS (1.9.1-beta.1+) and native SDK for Android, iOS, and Windows. Currently, simulcast on the sender side is supported on following desktop browsers - Chrome and Edge. Simulcast on receiver side is supported on all platforms that Azure Communication Services Calling supports. Support for Sender side Simulcast capability from mobile browsers will be added in the future.
+The lack of simulcast support leads to a degraded video experience in calls with three or more participants. If a video receiver with poor network conditions joins the conference, it impacts the quality of video received from the sender without simulcast support for all other participants. The video sender optimizes its video feed against the lowest common denominator. When simulcast streaming is available, the potential impact of one person affecting the entire streaming quality experience is minimized.
 
-## How Simulcast works
-Simulcast is a feature that allows a publisher, in this case the Azure Communication Services calling SDK, to send different qualities of the same video to the SFU. The SFU then forwards the most suitable quality to each other endpoint on a call, based on their bandwidth, CPU, and resolution preferences. This way, the publisher can save resources and the subscribers can receive the best possible quality. The SFU doesn't change the video quality, it only selects which one to forward.
+Simulcast is supported on Azure Communication Services SDK for WebJS (1.9.1-beta.1+) and native SDK for Android, iOS, and Windows. Currently, simulcast on the sender side is supported on following desktop browsers - Chrome and Microsoft Edge. Simulcast on receiver side is supported on all platforms that Azure Communication Services Calling supports. Support for Sender side Simulcast capability from mobile browsers is planned for a future release.
+
+## How simulcast works
+
+The simulcast feature enables a publisher, in this case the Azure Communication Services calling SDK, to send different qualities of the same video to the selective forwarding unit (SFU). The SFU then forwards the most suitable quality to each other endpoint on a call, based on their bandwidth, CPU, and resolution preferences. This way, the publisher can save resources and the subscribers can receive the best possible quality. The SFU doesn't change the video quality. The SFU only selects which one to forward.
+
+## Supported number of video qualities available with Simulcast
 
-## Supported number of video qualities available with Simulcast.
 Simulcast streaming from a web endpoint supports a maximum two video qualities. There aren't API controls needed to enable Simulcast for Azure Communication Services. Simulcast is enabled and available for all video calls.
 
 ## Available video resolutions
-When streaming with simulcast, there are no set resolutions for high or low quality simulcast video streams. Instead, based on many different variables, either a single or multiple video steams are delivered. If every subscriber to video is requesting and capable of receiving maximum resolution what publisher can provide, only that maximum resolution will be sent. The following resolutions are supported:
-- 1080P
+
+When a participant is streaming with simulcast, there are no set resolutions for high or low quality simulcast video streams. Instead, based on many different variables, either a single or multiple video steams are delivered. If every subscriber to video is requesting and capable of receiving maximum resolution what publisher can provide, only that it sends maximum resolution.
+
+Simulcast supports the following resolutions:
+
+- 1080p
 - 720p
 - 540p
 - 360p

articles/communication-services/quickstarts/voice-video-calling/includes/local-preview-mirroring/local-preview-mirroring-android.md

@@ -1,12 +1,12 @@
 ---
-title: Quickstart - Turn off local preview mirroring
-titleSuffix: An Azure Communication Services Quickstart
-description: This quickstart describes how to turn off local preview mirroring
+title: Turn off local preview mirroring
+titleSuffix: An Azure Communication Services article
+description: This article describes how to turn off local preview mirroring
 author: yassirbisteni
 manager: gaobob
 
 ms.author: yassirb
-ms.date: 2/21/2025
+ms.date: 6/26/2025
 ms.topic: quickstart
 ms.service: azure-communication-services
 ms.subservice: calling
@@ -15,7 +15,7 @@ ms.custom: mode-other, devx-track-js
 zone_pivot_groups: acs-plat-web-windows-android-ios
 ---
 
-### Turn off local preview mirroring
+### Code to turn off local preview mirroring
 
 ````java
 VideoStreamRenderer renderer = new VideoStreamRenderer(localVideoStream, this);

articles/communication-services/quickstarts/voice-video-calling/includes/local-preview-mirroring/local-preview-mirroring-ios.md

@@ -1,12 +1,12 @@
 ---
-title: Quickstart - Turn off local preview mirroring
-titleSuffix: An Azure Communication Services Quickstart
-description: This quickstart describes how to turn off local preview mirroring
+title: Turn off local preview mirroring
+titleSuffix: An Azure Communication Services article
+description: This article describes how to turn off local preview mirroring.
 author: yassirbisteni
 manager: gaobob
 
 ms.author: yassirb
-ms.date: 2/21/2025
+ms.date: 6/26/2025
 ms.topic: quickstart
 ms.service: azure-communication-services
 ms.subservice: calling
@@ -15,7 +15,7 @@ ms.custom: mode-other, devx-track-js
 zone_pivot_groups: acs-plat-web-windows-android-ios
 ---
 
-### Turn off local preview mirroring
+### Code to turn off local preview mirroring
 
 ````swift
 var renderer = try VideoStreamRenderer(localVideoStream: localVideoStream)

articles/communication-services/quickstarts/voice-video-calling/includes/local-preview-mirroring/local-preview-mirroring-windows.md

@@ -1,12 +1,12 @@
 ---
-title: Quickstart - Turn off local preview mirroring
-titleSuffix: An Azure Communication Services Quickstart
-description: This quickstart describes how to turn off local preview mirroring
+title: Turn off local preview mirroring
+titleSuffix: An Azure Communication Services article
+description: This article describes how to turn off local preview mirroring.
 author: yassirbisteni
 manager: gaobob
 
 ms.author: yassirb
-ms.date: 2/21/2025
+ms.date: 6/26/2025
 ms.topic: quickstart
 ms.service: azure-communication-services
 ms.subservice: calling
@@ -15,7 +15,7 @@ ms.custom: mode-other, devx-track-js
 zone_pivot_groups: acs-plat-web-windows-android-ios
 ---
 
-### Turn off local preview mirroring
+### Code to turn off local preview mirroring
 
 ````csharp
 var uri = await localOutgoingVideoStream.StartPreviewAsync();

articles/communication-services/quickstarts/voice-video-calling/local-preview-mirroring.md

@@ -1,40 +1,46 @@
 ---
-title: Quickstart - Turn off local preview mirroring
-titleSuffix: An Azure Communication Services Quickstart
-description: This quickstart describes how to mirror turn off local preview mirroring
+title: Turn off local preview mirroring
+titleSuffix: An Azure Communication Services article
+description: This article describes how to turn off local preview mirroring.
 author: yassirbisteni
 manager: gaobob
 
 ms.author: yassirb
-ms.date: 2/21/2025
+ms.date: 6/26/2025
 ms.topic: quickstart
 ms.service: azure-communication-services
 ms.subservice: calling
 ms.custom: mode-other, devx-track-js
 
 zone_pivot_groups: acs-plat-windows-android-ios
 ---
-# Turn off local preview mirroring
+# Local preview mirroring
 
-**We’re excited to announce the rollout of the turn off local preview mirroring feature for the native ACS calling experience**
-<br/>
-<br/>Meeting participants can now choose to stop mirroring their video preview—the small window showing how they appear during meetings.
-<br/>This is especially useful for situations like:
+Meeting participants can now choose to stop mirroring their video preview—the small window showing how they appear during meetings.
+
+This ability is especially useful for situations like:
 <br/>✅ Virtual backgrounds with text – ensuring words appear correctly in your preview.
 <br/>✅ Teaching and presenting – making it easier to align your view with what participants see, reducing distractions when writing on a whiteboard or sharing content.
 
-## Frequently Asked Questions
+## Frequently asked questions
+
 1. What is the default setting?
-   <br/> By default, your video will be mirrored to you. This matches the familiar experience of front-facing smartphone cameras. However, you can easily toggle mirroring off when joining a meeting.
-2. Does this affect my outgoing video?
-   <br/> No, this setting only changes your personal view. Others will always see your video as intended, regardless of whether mirroring is on or off.
-4. When is this most useful?
-   <br/>  This feature is helpful in:
-    <br/>  - Gallery & Large Gallery views
-    <br/>  - Preview videos
-    <br/>  - PowerPoint content sharing & PowerPoint Live
-    <br/>  *These views mirror your self-view, but others still see your actual video.
-## Quickstart: Turn off local preview mirroring
+
+   By default, your video is mirrored to you. This mirroring matches the familiar experience of front-facing smartphone cameras. However, you can easily toggle mirroring off when joining a meeting.
+
+2. Does lack of mirroring affect my outgoing video?
+
+   No, this setting only changes your personal view. Others always see your video as intended, regardless of whether mirroring is on or off.
+
+4. When it most useful to turn off mirroring?
+
+   This feature is helpful in:
+    - Gallery & Large Gallery views
+    - Preview videos
+    - PowerPoint content sharing & PowerPoint Live <br/>
+      \* These views mirror your self-view, but others still see your actual video.
+
+## Turn off local preview mirroring
 
 ::: zone pivot="platform-windows"
 [!INCLUDE [Turn off local preview mirroring on Windows](./includes/local-preview-mirroring/local-preview-mirroring-windows.md)]