Android&iOS&Windows&Mac

// 获取到语音消息的 V2TIMMessage 对象
let msg = messageList[0]

// 检查消息类型是否为语音
if msg.elemType == .ELEM_TYPE_SOUND, let soundElem = msg.soundElem {
    
    // 调用语音转文字，默认使用中英文识别模型
    soundElem.convertVoiceToText(language: "") { code, desc, result in
        // 识别成功，result 为识别结果
        print("convertVoiceToText, code: \\(code), desc: \\(desc ?? ""), result: \\(result ?? "")")
    }
}

let uploadParam: [String: Any] = [
    "filePath": recordPath,
    "fileType": 3  // 0: Unknown 1: Image 2: Video 3: Audio 4: log
]

if let uploadData = try? JSONSerialization.data(withJSONObject: uploadParam, options: .prettyPrinted),
   let uploadParamStr = String(data: uploadData, encoding: .utf8) {
    V2TIMManager.sharedInstance().callExperimentalAPI(
        api: "uploadFile",
        param: uploadParamStr as NSObject,
        succ: { result in
            if let fileUrl = result as? String, !fileUrl.isEmpty {
                print("Upload successful, URL: \\(fileUrl)")
            }
        },
        fail: { code, desc in
            print("Upload failed, code: \\(code), desc: \\(String(describing: desc))")
        }
    )
}

let convertParam: [String: Any] = [
   "url": fileUrl,
   "language": ""  // Empty means auto-detect
]

if let convertData = try? JSONSerialization.data(withJSONObject: convertParam, options: .prettyPrinted),
  let convertParamStr = String(data: convertData, encoding: .utf8) {
   V2TIMManager.sharedInstance().callExperimentalAPI(
       api: "convertVoiceToText",
       param: convertParamStr as NSObject,
       succ: { result in
           if let text = result as? String {
               print("Voice to text successful: \\(text)")
           }
       },
       fail: { code, desc in
           print("Voice to text failed, code: \\(code), desc: \\(String(describing: desc))")
       }
   )
}

import Foundation
import ImSDK_Plus

// 以下成员放在应用持有的 NSObject 子类中，并遵循 V2TIMSDKListener。
private var sessionID: String?
private var sentences: [Int: String] = [:]

func onExperimentalNotify(key: String, param: NSObject?) {
    guard key == "onRecvRealtimeTranscriberResponse",
          let result = param as? [String: Any],
          let id = sessionID,
          result["sessionID"] as? String == id else { return }
    let index = (result["chunkIndex"] as? NSNumber)?.intValue ?? 0
    let text = result["text"] as? String ?? ""
    if !text.isEmpty {
        sentences[index] = text
    }
    let fullText = sentences.sorted { $0.key < $1.key }.map(\\.value).joined()
    print("ASR text: \\(fullText)")
    if (result["isFinished"] as? NSNumber)?.boolValue == true {
        print("ASR final text: \\(fullText)")
        sessionID = nil
        V2TIMManager.sharedInstance().removeIMSDKListener(listener: self)
    }
}

// 创建会话前注册，self 遵循 V2TIMSDKListener。
V2TIMManager.sharedInstance().addIMSDKListener(listener: self)

#import <ImSDK_Plus/ImSDK_Plus.h>

// 声明在应用持有的 NSObject<V2TIMSDKListener> 子类中。
@property(nonatomic, copy) NSString *sessionID;
@property(nonatomic, strong) NSMutableDictionary<NSNumber *, NSString *> *sentences;

- (void)onExperimentalNotify:(NSString *)key param:(NSObject *)param {
    if (![key isEqualToString:@"onRecvRealtimeTranscriberResponse"]
        || ![param isKindOfClass:NSDictionary.class]) {
        return;
    }
    NSDictionary *result = (NSDictionary *)param;
    if (!self.sessionID || ![self.sessionID isEqualToString:result[@"sessionID"]]) {
        return;
    }
    NSNumber *index = result[@"chunkIndex"] ?: @0;
    NSString *text = result[@"text"] ?: @"";
    if (text.length > 0) {
        self.sentences[index] = text;
    }
    NSArray<NSNumber *> *indices = [self.sentences.allKeys
        sortedArrayUsingSelector:@selector(compare:)];
    NSMutableString *fullText = [NSMutableString string];
    for (NSNumber *key in indices) {
        [fullText appendString:self.sentences[key]];
    }
    NSLog(@"ASR text: %@", fullText);
    if ([result[@"isFinished"] boolValue]) {
        NSLog(@"ASR final text: %@", fullText);
        self.sessionID = nil;
        [[V2TIMManager sharedInstance] removeIMSDKListener:self];
    }
}

// 创建会话前初始化并注册。
self.sentences = [NSMutableDictionary dictionary];
[[V2TIMManager sharedInstance] addIMSDKListener:self];