Quick Start Voice Call

Client request to login to room and publish a stream

// Record the agent
self.streamToPlay = [self getAgentStreamID];

ZegoEngineConfig* engineConfig = [[ZegoEngineConfig alloc] init];
engineConfig.advancedConfig = @{
// !mark(1:2)
    @"set_audio_volume_ducking_mode":@1,/** This configuration is used for volume ducking **/
    @"enable_rnd_volume_adaptive":@"true",/** This configuration is used for adaptive playback volume **/
};
// !mark
[ZegoExpressEngine setEngineConfig:engineConfig];

// This setting only affects AEC (echo cancellation). Here we set it to ModeGeneral, which uses our proprietary echo cancellation algorithm, giving us more control.
// If other options are selected, it might use the system's echo cancellation, which may work better on iPhones but could be less effective on some Android devices.
[[ZegoExpressEngine sharedEngine] setAudioDeviceMode:ZegoAudioDeviceModeGeneral];

// Note: Enabling AI echo cancellation requires contacting ZEGOCLOUD technical support to obtain the corresponding ZegoExpressionEngine.xcframework, as versions with these capabilities have not yet been released.
// !mark(1:5)
[[ZegoExpressEngine sharedEngine] enableAGC:TRUE];
[[ZegoExpressEngine sharedEngine] enableAEC:TRUE];
[[ZegoExpressEngine sharedEngine] setAECMode:ZegoAECModeAIAggressive2];
[[ZegoExpressEngine sharedEngine] enableANS:TRUE];
[[ZegoExpressEngine sharedEngine] setANSMode:ZegoANSModeMedium];

// Login to room
// !mark
[self loginRoom:^(int errorCode, NSDictionary *extendedData) {
    if (errorCode!=0) {
        NSString* errorMsg =[NSString stringWithFormat:@"Failed to enter voice room:%d", errorCode];
        completion(NO, errorMsg);
        return;
    }

    // Start publishing stream after entering room
    [self startPushlishStream];
}];

Client request to play the AI agent stream

// Listen for room stream information update status, and play the AI agent stream
- (void)onRoomStreamUpdate:(ZegoUpdateType)updateType
                streamList:(NSArray<ZegoStream *> *)streamList
              extendedData:(nullable NSDictionary *)extendedData
                    roomID:(NSString *)roomID{
    if (updateType == ZegoUpdateTypeAdd) {
        for (int i=0; i<streamList.count; i++) {
            ZegoStream* item = [streamList objectAtIndex:i];

// !mark
            [self startPlayStream:item.streamID];
        }
    } else if(updateType == ZegoUpdateTypeDelete) {
        for (int i=0; i<streamList.count; i++) {
            ZegoStream* item = [streamList objectAtIndex:i];
            [[ZegoExpressEngine sharedEngine] stopPlayingStream:item.streamID];
        }
    }
}

/**
 * Notify your server to end the call
 *
 * @param completion Completion callback, returns operation result
 * @discussion This method sends a request to the server to end the call, used to release the AI agent instance
 */
- (void)doStopCallWithCompletion:(void (^)(NSInteger code, NSString *message, NSDictionary *data))completion {
    // Build request URL
// !mark
    NSString *url = [NSString stringWithFormat:@"%@/api/stop", self.currentBaseURL];
    NSURL *requestURL = [NSURL URLWithString:url];

    // Create request
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:requestURL];
    request.HTTPMethod = @"POST";

    // Set request headers
    [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];

    // Create request parameters
    NSMutableDictionary *params = [NSMutableDictionary dictionary];
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:params options:0 error:nil];
    request.HTTPBody = jsonData;

    // Create session
    NSURLSession *session = [NSURLSession sharedSession];

    // Send request
    NSURLSessionDataTask *task = [session dataTaskWithRequest:request
                                           completionHandler:^(NSData * _Nullable data,
                                                            NSURLResponse * _Nullable response,
                                                            NSError * _Nullable error) {
        dispatch_async(dispatch_get_main_queue(), ^{
            if (error) {
                if (completion) {
                    completion(-1, @"Network request failed", nil);
                }
                return;
            }

            NSHTTPURLResponse *httpUrlResponse = (NSHTTPURLResponse *)response;
            if (httpUrlResponse.statusCode != 200) {
                if (completion) {
                    completion(httpUrlResponse.statusCode,
                             [NSString stringWithFormat:@"Server error: %ld", (long)httpUrlResponse.statusCode],
                             nil);
                }
                return;
            }

            NSError *jsonError;
            NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:0 error:&jsonError];
            if (jsonError) {
                if (completion) {
                    completion(-2, @"Failed to parse response data", nil);
                }
                return;
            }

            // Parse response data
            NSInteger code = [dict[@"code"] integerValue];
            NSString *message = dict[@"message"];
            NSDictionary *responseData = dict[@"data"];

            if (completion) {
                completion(code, message, responseData);
            }

            // Exit room
// !mark
            [[ZegoExpressEngine sharedEngine] logoutRoom];
        });
    }];

    [task resume];
}

ZegoEngineProfile* profile = [[ZegoEngineProfile alloc]init];
profile.appID = kZegoAppId;
profile.scenario = ZegoScenarioHighQualityChatroom; // High Quality Chatroom scenario, setting this scenario can avoid requesting camera permissions, integrators should set specific values according to their business scenarios
ZegoEngineConfig* engineConfig = [[ZegoEngineConfig alloc] init];
engineConfig.advancedConfig = @{
    @"set_audio_volume_ducking_mode":@1,/** Configure volume ducking to avoid sound conflicts **/
    @"enable_rnd_volume_adaptive":@"true",/** Enable adaptive playback volume **/
};
[ZegoExpressEngine setEngineConfig:engineConfig];
[ZegoExpressEngine createEngineWithProfile:profile eventHandler:self];
// Enable traditional audio 3A processing
[[ZegoExpressEngine sharedEngine] enableAGC:TRUE];
[[ZegoExpressEngine sharedEngine] enableAEC:TRUE];
[[ZegoExpressEngine sharedEngine] enableANS:TRUE];
// Enable AI echo cancellation, please note: enabling AI echo cancellation requires contacting ZEGO technical support to obtain the corresponding version of ZEGOExpress SDK
[[ZegoExpressEngine sharedEngine] setAECMode:ZegoAECModeAIAggressive2];
// Enable AI noise reduction with moderate noise suppression
[[ZegoExpressEngine sharedEngine] setANSMode:ZegoANSModeMedium];