> ## Documentation Index
> Fetch the complete documentation index at: https://docs.duix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Quick start

> Initialize and start a Duix session after microphone authorization in iOS.

## Overview

Before initializing the **Duix iOS SDK**, ensure that microphone permissions are granted.\
The following example demonstrates how to request access and start a digital human session\
after successful authorization.

***

```objective-c theme={null}
- (void)toStart {
    // Initialize SDK after microphone access is granted
    [[DigitalManager manager] initNewWithAppId:AppId
                                         appKey:AppKey
                                  conversationId:ConversationId
                                          region:REGION
                                           block:^(BOOL isSuccee, NSString *errorMsg) {
        if (isSuccee) {
            // Start the digital human session
            [[DigitalManager manager] toStart];
        } else {
            NSLog(@"GJDigitalDemo error: %@", errorMsg);
        }
    }];
}
```