Merge branch 'master' of https://github.com/AgoraIO/agora_doc_source

Author: Nero-Hu

en-US/dita/RTC-NG/API/api_imediaengine_createcustomaudiotrack.dita

@@ -42,7 +42,7 @@
             <note type="attention">Ensure that you call this method before joining a channel.</note>
             <p>To publish a custom audio source, see the following steps:<ol>
             <li>Call this method to create a custom audio track and get the audio track ID.</li>
-            <li>Call <xref keyref="joinChannel2"/> to join the channel. In <xref keyref="ChannelMediaOptions"/>, set <parmname>publishCustomAduioTrackId</parmname> to the audio track ID that you want to publish, and set <parmname>publishCustomAudioTrack</parmname> to <codeph><ph keyref="true"/></codeph>.</li>
+            <li>Call <xref keyref="joinChannel2"/> to join the channel. In <xref keyref="ChannelMediaOptions"/>, set <parmname>publishCustomAudioTrackId</parmname> to the audio track ID that you want to publish, and set <parmname>publishCustomAudioTrack</parmname> to <codeph><ph keyref="true"/></codeph>.</li>
             <li>Call <xref keyref="pushAudioFrame" props="cpp framework"/><xref keyref="pushAudioFrame2" props="android apple"/> and specify <parmname>trackId</parmname> as the audio track ID set in step 2. You can then publish the corresponding custom audio source in the channel.</li>
             </ol></p>
         </section>
@@ -62,7 +62,7 @@
             <title>Returns</title>
             <ul>
             <li>If the method call is successful, the audio track ID is returned as the unique identifier of the audio track.</li>
-            <li>If the method call fails, a negative value is returned.</li>
+            <li>If the method call fails, 0xffffffff is returned. <ph props="cn">See <xref keyref="error-code-link"/> for details and resolution suggestions.</ph></li>
             </ul> </section>
     </refbody>
-</reference>
+</reference>

en-US/dita/RTC-NG/API/api_imediaengine_pushaudioframe0.dita

@@ -27,7 +27,7 @@
             <note type="attention">
             <p>Before calling this method to push external audio data, perform the following steps:<ol>
                 <li>Call <xref keyref="createCustomAudioTrack"/> to create a custom audio track and get the audio track ID.</li>
-                <li>Call <xref keyref="joinChannel2"/> to join the channel. In <xref keyref="ChannelMediaOptions"/>, set <parmname>publishCustomAduioTrackId</parmname> to the audio track ID that you want to publish, and set <parmname>publishCustomAudioTrack</parmname> to <codeph><ph keyref="true"/></codeph>.</li>
+                <li>Call <xref keyref="joinChannel2"/> to join the channel. In <xref keyref="ChannelMediaOptions"/>, set <parmname>publishCustomAudioTrackId</parmname> to the audio track ID that you want to publish, and set <parmname>publishCustomAudioTrack</parmname> to <codeph><ph keyref="true"/></codeph>.</li>
             </ol></p>
             </note> </section>
         <section id="parameters">