Integrate Enhanced Voice Auditing with Alibaba Cloud RTC

Integrate with Alibaba Cloud RTC

Prerequisites

• You have enabled Enhanced Voice Auditing in Content Security. For more information, see Enable the enhanced edition of audio moderation.

• You have enabled interactive streaming. For more information, see Enable Interactive Live Streaming.

(Recommended) Native review

Solution architecture

Content Security provides a native review solution for Alibaba Cloud RTC. When you call the moderation API, you specify parameters such as the channel and user ID. The service then uses a virtual user to join the channel, retrieve the audio stream, and detect prohibited content in real time. If the service finds any violations, it sends a notification to your application server.

Key benefits

This solution leverages the tight integration between Alibaba Cloud products. Unlike third-party content security services, you do not incur additional audio and video call duration charges when Content Security retrieves streams from Alibaba Cloud RTC.

• Faster moderation: End-to-end latency is typically within seconds, compared to ten or more seconds for server-side stream pushing.

• Lower costs: This solution eliminates extra transcoding and live stream pushing fees.

• Simplified integration: You can initiate moderation by simply providing specific parameters, making the integration process much easier.

Billing

The native review solution incurs the following charges:

Procedure

1. Obtain the Alibaba Cloud RTC App ID, virtual user ID, and token. For more information, see Use a token for authentication.

2. Call the Enhanced Voice Auditing API, passing the parameters obtained in the previous step and specifying the channel and user to moderate to start content detection on Alibaba Cloud RTC. For detailed instructions, see the Enhanced edition of audio moderation V2.0 SDK and integration guide.

   1. Set the Service parameter to live_stream_detection.

   2. In the ServiceParameters parameter, set the callback field to the URL where you want to receive notifications. For more information, see the Enhanced edition of audio moderation API.

   3. In the ServiceParameters parameter, include the extra field to specify the Alibaba Cloud RTC connection details:

Table 1. Fields in the extra parameter

Request example

{
 "service":"live_stream_detection",
 "serviceParameters":"{\"cryptType\":\"SHA256\",\"seed\":\"abc***123\",\"callback\":\"https://aliyun.com/callback\",
 \"extra\":\"{\"AlirtcAppId\":\"App123", \"AlirtcTokenId\": \"Uid123456\", \"AlirtcToken\": \"Token123456\",\"AlirtcChannelId\":\"Channel123\"}\"}"
}