Update get-started-volume-indicator.md

Author: sloanster

articles/communication-services/quickstarts/voice-video-calling/get-started-volume-indicator.md

@@ -1,7 +1,7 @@
 ---
 title: Quickstart - Add volume indicator to your Web calling app
 titleSuffix: An Azure Communication Services quickstart
-description: In this quickstart, you'll learn how to add raw media access calling capabilities to your app using Azure Communication Services.
+description: In this quickstart, you'll learn how to check call volume within you Web app when using Azure Communication Services.
 author: sloanster
 
 ms.author: micahvivion
@@ -12,65 +12,29 @@ ms.subservice: calling
 ms.custom: mode-other
 ---
 
-As a developer you can have control over checking microphone volume in Javascript
+# Accessing call volume level
+As a developer you can have control over checking microphone volume in Javascript. This quickstart shows examples of how to do this in the ACS WebJS.
 
 ## Prerequisites
-[!INCLUDE [Public Preview](../../../../includes/public-preview-include-document.md)]
+[!INCLUDE [Public Preview](../../../includes/public-preview-include-document.md)]
 
 >[!IMPORTANT]
-> The quick start examples here are available starting on the public preview version [1.9.1-beta.1](https://www.npmjs.com/package/@azure/communication-calling/v/1.9.1-beta.1) of the calling Web SDK. Make sure to use that version or newer when trying this quickstart.
+> The quick start examples here are available starting on the public preview version [1.9.1-beta.1](https://www.npmjs.com/package/@azure/communication-calling/v/1.9.1-beta.1) of the calling Web SDK. Make sure to use that SDK version or newer when trying this quickstart.
 
-## Checking the audio stream olume
-### Description
+## Checking the audio stream volume
+As a developer it can be nice to have the ability to check and display to end users the current microphone volume. ACS calling API exposes this information using `getVolume`. The `getVolume` value is a number ranging from 0 to 100 (with 0 noting zero audio detected, 100 as the max level detectable). This value iss sampled every 200ms to get near realtime value of volume.
 
-As a developer it can be nice to have the ability to check the microphone volume in Javascript. This quickstart shows examples of how to do this in ACS WebJS.
+### Example usage
+Sample code to get volume of selected microphone. This example shows how to generate the volume level by accessing `getVolume`.
 
-#### Architecture
-##### Pre/Post Call
-ACS Already has raw audio stream access api built over TsCall on Device Manager this can be used to expose audio gain for precall/incall Microphone volume.
 ```javascript
-export interface LocalAudioStream {
-    getMediaStreamTrack(): Promise<MediaStreamTrack>;
-    switchSource(source: AudioDeviceInfo | MediaStreamTrack): Promise<void>;
-    dispose();
-}
-export interface RemoteAudioStream {
-    getMediaStreamTrack(): Promise<MediaStreamTrack>;
-}
-```
-ACS will expose another API on local and remote audio streams to get Microphone volume built over Raw Audio access API, to get Volume (gain) of selected Microphone
-```javascript
-export interface LocalAudioStream {
-     getVolume(): Promise<Volume>;
-...
-}
-
-export interface RemoteAudioStream {
-     getVolume(): Promise<Volume>;
-...
-}
-
-export interface Volume extends Disposable{				
-      off(event: 'levelChanged', listener: PropertyChangedEvent): void;		
-      on(event: 'levelChanged', listener: PropertyChangedEvent): void;
-      readonly level: number;		
-  }
-```
-The volume is a number ranging from 0 to 100
-It's sampled every 200ms to get near realtime value of volume
-####  Example usage
-Sample code to get volume of selected microphone
-
-need call getVolume on audioSourceChanged for local audio stream
-
-```javascript
-
+//Get the vaolume of the local audio source
 const volumeIndicator = await new SDK.LocalAudioStream(deviceManager.selectedMicrophone).getVolume();
 volumeIndicator.on('levelChanged', ()=>{
     console.log(`Volume is ${volumeIndicator.level}`)
 })
 
-
+//Get the volume level of the remote incoming audio source
 const remoteAudioStream = call.remoteAudioStreams[0];
 const volumeIndicator = await remoteAudioStream.getVolume();
 volumeIndicator.on('levelChanged', ()=>{
@@ -79,10 +43,3 @@ volumeIndicator.on('levelChanged', ()=>{
 
 ```
 
-#### Telemetry for localAudioStream
-best effort to send telemetry, from localAudioStream
-if call client is not initialized before LocalAudioStream, no telemetry will be sent
-
-For MediaStreamTrack telemetry only from the first created call client will be sent
-cc1, new local stream ... everything works fine
-cc1, new local stream gets latched to telemetry logger from cc1, cc2, new local stream will not send data