TTS 文字转语音

支持多种语音模型和音色选择

输出高质量音频格式：opus、aac、flac、wav、pcm

最大输入文本 4096 个字符

请求示例

bash curl --request POST \ --url https://api.openveer.com/v1/audio/speech \ --header 'Authorization: Bearer <token>' \ --header 'Content-Type: application/json' \ --data '{ "model": "gpt-4o-mini-tts", "input": "今天天气真好,适合出去散步。", "voice": "alloy", "response_format": "opus", "speed": 1.0 }' \ --output speech.opus

```python
import requests

url = "https://api.openveer.com/v1/audio/speech"

payload = {
"model": "gpt-4o-mini-tts",
"input": "今天天气真好,适合出去散步。",
"voice": "alloy",
"response_format": "opus",
"speed": 1.0
}

headers = {
"Authorization": "Bearer ",
"Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

with open("speech.opus", "wb") as f:
f.write(response.content)
```

```javascript
const url = "https://api.openveer.com/v1/audio/speech";

const payload = {
model: "gpt-4o-mini-tts",
input: "今天天气真好,适合出去散步。",
voice: "alloy",
response_format: "opus",
speed: 1.0
};

const headers = {
"Authorization": "Bearer ",
"Content-Type": "application/json"
};

fetch(url, {
method: "POST",
headers: headers,
body: JSON.stringify(payload)
})
.then(response => response.blob())
.then(blob => {
const url = window.URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = 'speech.opus';
a.click();
})
.catch(error => console.error('Error:', error));
```

```go
package main

import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
"os"
)

func main() {
url := "https://api.openveer.com/v1/audio/speech"

  payload := map[string]interface{}{
      "model":           "gpt-4o-mini-tts",
      "input":           "今天天气真好,适合出去散步。",
      "voice":           "alloy",
      "response_format": "opus",
      "speed":           1.0,
  }

  jsonData, _ := json.Marshal(payload)

  req, _ := http.NewRequest("POST", url, bytes.NewBuffer(jsonData))
  req.Header.Set("Authorization", "Bearer <token>")
  req.Header.Set("Content-Type", "application/json")

  client := &http.Client{}
  resp, err := client.Do(req)
  if err != nil {
      panic(err)
  }
  defer resp.Body.Close()

  out, _ := os.Create("speech.opus")
  defer out.Close()

  io.Copy(out, resp.Body)
  fmt.Println("Audio saved to speech.opus")

}
```

```java
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.URI;

public class Main {
public static void main(String[] args) throws Exception {
String url = "https://api.openveer.com/v1/audio/speech";

      String json = """
      {
          "model": "gpt-4o-mini-tts",
          "input": "今天天气真好,适合出去散步。",
          "voice": "alloy",
          "response_format": "opus",
          "speed": 1.0
      }
      """;

      HttpClient client = HttpClient.newHttpClient();
      HttpRequest request = HttpRequest.newBuilder()
          .uri(URI.create(url))
          .header("Authorization", "Bearer <token>")
          .header("Content-Type", "application/json")
          .POST(HttpRequest.BodyPublishers.ofString(json))
          .build();

      HttpResponse<InputStream> response = client.send(request,
          HttpResponse.BodyHandlers.ofInputStream());

      try (FileOutputStream fos = new FileOutputStream("speech.opus")) {
          response.body().transferTo(fos);
      }
  }

}
```

```php
"gpt-4o-mini-tts", "input" => "今天天气真好,适合出去散步。", "voice" => "alloy", "response_format" => "opus", "speed" => 1.0 ]; $ch = curl_init($url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data)); curl_setopt($ch, CURLOPT_HTTPHEADER, [ "Authorization: Bearer ", "Content-Type: application/json" ]); $response = curl_exec($ch); curl_close($ch); file_put_contents("speech.opus", $response); ?>

```

```ruby
require 'net/http'
require 'uri'
require 'json'

url = URI("https://api.openveer.com/v1/audio/speech")

request = Net::HTTP::Post.new(url)
request["Authorization"] = "Bearer "
request["Content-Type"] = "application/json"

request.body = {
model: "gpt-4o-mini-tts",
input: "今天天气真好,适合出去散步。",
voice: "alloy",
response_format: "opus",
speed: 1.0
}.to_json

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

response = http.request(request)

File.open("speech.opus", "wb") do |file|
file.write(response.body)
end
```

```swift
import Foundation

let url = URL(string: "https://api.openveer.com/v1/audio/speech")!

var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("Bearer ", forHTTPHeaderField: "Authorization")
request.setValue("application/json", forHTTPHeaderField: "Content-Type")

let payload: [String: Any] = [
"model": "gpt-4o-mini-tts",
"input": "今天天气真好,适合出去散步。",
"voice": "alloy",
"response_format": "opus",
"speed": 1.0
]

request.httpBody = try? JSONSerialization.data(withJSONObject: payload)

let task = URLSession.shared.dataTask(with: request) { data, response, error in
if let error = error {
print("Error: (error)")
return
}

  if let data = data {
      let fileURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
          .appendingPathComponent("speech.opus")
      try? data.write(to: fileURL)
      print("Audio saved to \(fileURL)")
  }

}

task.resume()
```

```csharp
using System;
using System.IO;
using System.Net.Http;
using System.Text;
using System.Text.Json;
using System.Threading.Tasks;

class Program
{
static async Task Main(string[] args)
{
var url = "https://api.openveer.com/v1/audio/speech";

      var payload = new
      {
          model = "gpt-4o-mini-tts",
          input = "今天天气真好,适合出去散步。",
          voice = "alloy",
          response_format = "opus",
          speed = 1.0
      };

      using var client = new HttpClient();
      client.DefaultRequestHeaders.Add("Authorization", "Bearer <token>");

      var json = JsonSerializer.Serialize(payload);
      var content = new StringContent(json, Encoding.UTF8, "application/json");

      var response = await client.PostAsync(url, content);
      var audioBytes = await response.Content.ReadAsByteArrayAsync();

      await File.WriteAllBytesAsync("speech.opus", audioBytes);
      Console.WriteLine("Audio saved to speech.opus");
  }

}
```

```c
#include
#include

size_t write_data(void ptr, size_t size, size_t nmemb, FILE stream) {
return fwrite(ptr, size, nmemb, stream);
}

int main(void) {
CURL curl;
CURLcode res;
struct curl_slist headers = NULL;

  curl_global_init(CURL_GLOBAL_ALL);
  curl = curl_easy_init();

  if(curl) {
      FILE *fp = fopen("speech.opus", "wb");

      headers = curl_slist_append(headers, "Authorization: Bearer <token>");
      headers = curl_slist_append(headers, "Content-Type: application/json");

      const char *json_data = "{\"model\":\"gpt-4o-mini-tts\",\"input\":\"今天天气真好,适合出去散步。\",\"voice\":\"alloy\",\"response_format\":\"opus\",\"speed\":1.0}";

      curl_easy_setopt(curl, CURLOPT_URL, "https://api.openveer.com/v1/audio/speech");
      curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
      curl_easy_setopt(curl, CURLOPT_POSTFIELDS, json_data);
      curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
      curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);

      res = curl_easy_perform(curl);

      if(res != CURLE_OK) {
          fprintf(stderr, "curl_easy_perform() failed: %s\n",
                  curl_easy_strerror(res));
      }

      fclose(fp);
      curl_easy_cleanup(curl);
      curl_slist_free_all(headers);
  }

  curl_global_cleanup();
  return 0;

}
```

```objectivec
#import

int main(int argc, const char * argv[]) {
@autoreleasepool {
NSURL *url = [NSURL URLWithString:@"https://api.openveer.com/v1/audio/speech"];

      NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
      [request setHTTPMethod:@"POST"];
      [request setValue:@"Bearer <token>" forHTTPHeaderField:@"Authorization"];
      [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];

      NSDictionary *payload = @{
          @"model": @"gpt-4o-mini-tts",
          @"input": @"今天天气真好,适合出去散步。",
          @"voice": @"alloy",
          @"response_format": @"opus",
          @"speed": @1.0
      };

      NSData *jsonData = [NSJSONSerialization dataWithJSONObject:payload options:0 error:nil];
      [request setHTTPBody:jsonData];

      NSURLSessionDataTask *task = [[NSURLSession sharedSession]
          dataTaskWithRequest:request
          completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
              if (error) {
                  NSLog(@"Error: %@", error);
                  return;
              }

              NSString *filePath = [NSHomeDirectory() stringByAppendingPathComponent:@"speech.opus"];
              [data writeToFile:filePath atomically:YES];
              NSLog(@"Audio saved to %@", filePath);
          }];

      [task resume];
      [[NSRunLoop mainRunLoop] run];
  }
  return 0;

}
```

```ocaml
( Requires cohttp and yojson libraries )
open Lwt
open Cohttp
open Cohttp_lwt_unix

let url = "https://api.openveer.com/v1/audio/speech"

let json_body = Assoc [ ("model",String "gpt-4o-mini-tts");
("input", String "今天天气真好,适合出去散步。"); ("voice",String "alloy");
("response_format", String "opus"); ("speed",Float 1.0)
]

let () =
let body = Cohttp_lwt.Body.of_string (Yojson.Safe.to_string json_body) in
let headers = Header.init ()
|> fun h -> Header.add h "Authorization" "Bearer "
|> fun h -> Header.add h "Content-Type" "application/json"
in

Lwt_main.run (
  Client.post ~headers ~body (Uri.of_string url) >>= fun (resp, body) ->
  body |> Cohttp_lwt.Body.to_string >|= fun body_str ->
  let oc = open_out_bin "speech.opus" in
  output_string oc body_str;
  close_out oc;
  print_endline "Audio saved to speech.opus"
)

```

```dart
import 'dart:io';
import 'package:http/http.dart' as http;
import 'dart:convert';

void main() async {
final url = Uri.parse('https://api.openveer.com/v1/audio/speech');

final payload = {
  'model': 'gpt-4o-mini-tts',
  'input': '今天天气真好,适合出去散步。',
  'voice': 'alloy',
  'response_format': 'opus',
  'speed': 1.0
};

final response = await http.post(
  url,
  headers: {
    'Authorization': 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: jsonEncode(payload)
);

await File('speech.opus').writeAsBytes(response.bodyBytes);
print('Audio saved to speech.opus');

}
```

```r
library(httr)

url <- "https://api.openveer.com/v1/audio/speech"

payload <- list(
model = "gpt-4o-mini-tts",
input = "今天天气真好,适合出去散步。",
voice = "alloy",
response_format = "opus",
speed = 1.0
)

response <- POST(
url,
add_headers(
Authorization = "Bearer ",
Content-Type = "application/json"
),
body = payload,
encode = "json"
)

writeBin(content(response, "raw"), "speech.opus")
cat("Audio saved to speech.opus\n")
```

响应示例

binary 二进制音频数据流

json { "error": { "code": 400, "message": "请求参数无效", "type": "invalid_request_error" } }

json { "error": { "code": 401, "message": "身份验证失败,请检查您的API密钥", "type": "authentication_error" } }

json { "error": { "code": 402, "message": "账户余额不足,请充值后再试", "type": "payment_required" } }

json { "error": { "code": 413, "message": "输入文本超过限制(最大 4096 字符)", "type": "invalid_request_error" } }

json { "error": { "code": 429, "message": "请求过于频繁,请稍后再试", "type": "rate_limit_error" } }

json { "error": { "code": 500, "message": "服务器内部错误,请稍后重试", "type": "server_error" } }

json { "error": { "code": 502, "message": "网关错误,服务器暂时不可用", "type": "bad_gateway" } }

Authorizations

Authorization string

所有接口均需要使用Bearer Token进行认证获取 API Key: 访问 [API Key 管理页面](https://openveer.com) 获取您的 API Key 使用时在请求头中添加: ``` Authorization: Bearer YOUR_API_KEY ```

Body

model string

TTS 模型名称可选值: * `gpt-4o-mini-tts` - GPT-4o Mini TTS 模型 Example: `"gpt-4o-mini-tts"`

input string

要转换为语音的文本内容最大长度: 4096 个字符 Example: `"今天天气真好,适合出去散步。"`

voice string

语音音色选择可选音色: * `alloy` - 中性、平衡的音色 * `echo` - 男性、沉稳的音色 * `fable` - 英式、叙述性的音色 * `onyx` - 男性、深沉的音色 * `nova` - 女性、活力的音色 * `shimmer` - 女性、温柔的音色 Example: `"alloy"`

response_format string

音频输出格式支持的格式: * `wav` - WAV 格式,未压缩(默认) * `opus` - Opus 格式,用于互联网流媒体 * `aac` - AAC 格式 * `flac` - FLAC 格式,无损压缩 * `pcm` - PCM 格式,原始音频数据 Example: `"wav"`

speed number

语音播放速度范围: 0.25 到 4.0 * `0.25` - 最慢速度(1/4倍速) * `1.0` - 正常速度(默认) * `4.0` - 最快速度(4倍速) Example: `1.0`

Response

成功时返回二进制音频数据流,可直接保存为音频文件或播放。

错误时返回 JSON 格式的错误信息,包含错误代码、消息和类型。