テキスト読み上げ

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16import fs from "fs";
import path from "path";
import OpenAI from "openai";

const openai = new OpenAI();
const speechFile = path.resolve("./speech.mp3");

const mp3 = await openai.audio.speech.create({
  model: "gpt-4o-mini-tts",
  voice: "coral",
  input: "Today is a wonderful day to build something people love!",
  instructions: "Speak in a cheerful and positive tone.",
});

const buffer = Buffer.from(await mp3.arrayBuffer());
await fs.promises.writeFile(speechFile, buffer);

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34package main

import (
	"context"
	"io"
	"os"

	"github.com/openai/openai-go/v3"
)

func main() {
	client := openai.NewClient()
	response, err := client.Audio.Speech.New(context.Background(), openai.AudioSpeechNewParams{
		Model:        openai.SpeechModelGPT4oMiniTTS,
		Voice:        openai.AudioSpeechNewParamsVoiceUnion{OfAudioSpeechNewsVoiceString2: openai.String("coral")},
		Input:        "Today is a wonderful day to build something people love!",
		Instructions: openai.String("Speak in a cheerful and positive tone."),
	})
	if err != nil {
		panic(err)
	}
	defer response.Body.Close()

	file, err := os.Create("speech.mp3")
	if err != nil {
		panic(err)
	}
	if _, err := io.Copy(file, response.Body); err != nil {
		panic(err)
	}
	if err := file.Close(); err != nil {
		panic(err)
	}
}

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22import com.openai.client.OpenAIClient;
import com.openai.client.okhttp.OpenAIOkHttpClient;
import com.openai.core.http.HttpResponse;
import com.openai.models.audio.speech.SpeechCreateParams;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardCopyOption;

try (HttpResponse audio =
    client
        .audio()
        .speech()
        .create(
            SpeechCreateParams.builder()
                .model("gpt-4o-mini-tts")
                .voice("coral")
                .input("Today is a wonderful day to build something people love!")
                .instructions("Speak in a cheerful and positive tone.")
                .build())) {
  Files.copy(audio.body(), Path.of("speech.mp3"), StandardCopyOption.REPLACE_EXISTING);
}

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17using OpenAI.Audio;
#pragma warning disable OPENAI001

string key = Environment.GetEnvironmentVariable("OPENAI_API_KEY")!;
string model = "gpt-4o-mini-tts";
AudioClient client = new(model, key);

BinaryData audio = await client.GenerateSpeechAsync(
    "Today is a wonderful day to build something people love!",
    GeneratedSpeechVoice.Coral,
    new SpeechGenerationOptions
    {
        Instructions = "Speak in a cheerful and positive tone.",
    }
);

await File.WriteAllBytesAsync("speech.mp3", audio.ToArray());

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10require "openai"

client = OpenAI::Client.new
audio = client.audio.speech.create(
  model: "gpt-4o-mini-tts",
  voice: "coral",
  input: "Today is a wonderful day to build something people love!",
  instructions: "Speak in a cheerful and positive tone."
)
File.binwrite("speech.mp3", audio.read)

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10curl https://api.openai.com/v1/audio/speech \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o-mini-tts",
    "input": "Today is a wonderful day to build something people love!",
    "voice": "coral",
    "instructions": "Speak in a cheerful and positive tone."
  }' \
  --output speech.mp3

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6openai audio:speech create \
  --model gpt-4o-mini-tts \
  --voice coral \
  --instructions "Speak in a cheerful and positive tone." \
  --input "Today is a wonderful day to build something people love!" \
  --output speech.mp3

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14import OpenAI from "openai";
import { playAudio } from "openai/helpers/audio";

const openai = new OpenAI();

const response = await openai.audio.speech.create({
  model: "gpt-4o-mini-tts",
  voice: "coral",
  input: "Today is a wonderful day to build something people love!",
  instructions: "Speak in a cheerful and positive tone.",
  response_format: "wav",
});

await playAudio(response);

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27package main

import (
	"context"
	"io"
	"os"

	"github.com/openai/openai-go/v3"
)

func main() {
	client := openai.NewClient()
	response, err := client.Audio.Speech.New(context.Background(), openai.AudioSpeechNewParams{
		Model:          openai.SpeechModelGPT4oMiniTTS,
		Voice:          openai.AudioSpeechNewParamsVoiceUnion{OfAudioSpeechNewsVoiceString2: openai.String("coral")},
		Input:          "Today is a wonderful day to build something people love!",
		Instructions:   openai.String("Speak in a cheerful and positive tone."),
		ResponseFormat: openai.AudioSpeechNewParamsResponseFormatWAV,
	})
	if err != nil {
		panic(err)
	}
	defer response.Body.Close()
	if _, err := io.Copy(os.Stdout, response.Body); err != nil {
		panic(err)
	}
}

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46import com.openai.client.OpenAIClient;
import com.openai.client.okhttp.OpenAIOkHttpClient;
import com.openai.core.http.HttpResponse;
import com.openai.models.audio.speech.SpeechCreateParams;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.SourceDataLine;

try (HttpResponse audio =
    client
        .audio()
        .speech()
        .create(
            SpeechCreateParams.builder()
                .model("gpt-4o-mini-tts")
                .voice("coral")
                .input("Today is a wonderful day to build something people love!")
                .instructions("Speak in a cheerful and positive tone.")
                .responseFormat(SpeechCreateParams.ResponseFormat.PCM)
                .streamFormat(SpeechCreateParams.StreamFormat.AUDIO)
                .build())) {
  AudioFormat format = new AudioFormat(24_000, 16, 1, true, false);
  String outputPath = System.getenv("OPENAI_EXAMPLE_AUDIO_OUTPUT_PATH");
  if (outputPath == null || outputPath.isBlank()) {
    try (SourceDataLine speakers = AudioSystem.getSourceDataLine(format)) {
      speakers.open(format);
      speakers.start();
      byte[] chunk = new byte[1024];
      int bytesRead;
      while ((bytesRead = audio.body().read(chunk)) != -1) {
        speakers.write(chunk, 0, bytesRead);
      }
      speakers.drain();
    }
  } else {
    try (OutputStream output = Files.newOutputStream(Path.of(outputPath))) {
      long bytes = audio.body().transferTo(output);
      System.out.println(bytes + " audio bytes");
    }
  }
}

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13require "openai"

client = OpenAI::Client.new
audio = client.audio.speech.create(
  model: "gpt-4o-mini-tts",
  voice: "alloy",
  input: "Welcome to the OpenAI API.",
  response_format: :pcm,
  stream_format: :audio
)
while (chunk = audio.read(1_024))
  puts(chunk.bytesize)
end

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10curl https://api.openai.com/v1/audio/speech \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o-mini-tts",
    "input": "Today is a wonderful day to build something people love!",
    "voice": "coral",
    "instructions": "Speak in a cheerful and positive tone.",
    "response_format": "wav"
  }' | ffplay -i -