OpenAI has just lately introduced the Audio API that features a textual content to speech function known as speech, in keeping with their TTS (text-to-speech) generation. This option gives six integrated voices named Alloy, Echo, Fantasy, Onyx, Nova, and Shimmer.

OpenAI Text to SpeechOpenAI Text to Speech

Those voices may also be extremely helpful for duties comparable to narrating weblog posts, developing spoken audio in more than a few languages, including voiceovers to video tutorials, or handing over real-time spoken comments. In my enjoy, the output is impressively natural-sounding. For those who don’t seem to be the usage of any text-to-speech gear, then this providing by means of OpenAI is one thing you must believe making an attempt.

On this article, we’ll discover methods to arrange OpenAI’s TTS and create your first text-to-speech software. For this demonstration, we can be the usage of the next setup:

  • Working Device – macOS
  • Software – Terminal
  • Programming Language – cURL

This information may be acceptable to Home windows customers. The place vital, I’ll point out any gear and instructions that range from the ones used on macOS.

Step 1 – Set Up cURL

Many running programs include cURL pre-installed. If now not, we can first set up Homebrew, a bundle supervisor for macOS, which we can then use to put in cURL.

Test if cURL is Put in

To test if you have already got cURL to your device, make sure to’re attached to the Web, then kind the next command to your Terminal:

Home windows customers: Use Command Suggested or Home windows PowerShell

curl https://platform.openai.com

If cURL is about up as it should be and you’ve got an Web connection, it is going to ship an HTTP request to retrieve the contents of platform.openai.com, and also you must see output very similar to this screenshot:

Example of cURL Command OutputExample of cURL Command Output
The way to Set up cURL

For those who come across an error indicating that cURL isn’t put in, you’ll be able to set up it by means of following the supplied steps.

Home windows customers: The way to set up cURL on Home windows.

Open a brand new Terminal window, and input the instructions underneath to first set up Homebrew:

/bin/bash -c "$(curl -fsSL https://uncooked.githubusercontent.com/Homebrew/set up/HEAD/set up.sh)"

After putting in Homebrew, use the next command to put in cURL:

brew set up curl

Finally, run the command underneath to set the Homebrew model of cURL because the default one to your shell:

echo 'export PATH="$(brew --prefix)/choose/curl/bin:$PATH"' >> ~/.zshrc
supply ~/.zshrc

Step 2 – Get API Key from OpenAI

To acquire your API key, first move to openai.com, log in, after which click on on “API keys” within the sidebar.

OpenAI API Keys SectionOpenAI API Keys Section

At the API keys web page, click on “+ Create new secret key“, give it a reputation, after which click on “Create secret key“.

Creating OpenAI Secret KeyCreating OpenAI Secret Key

In a while, you are going to obtain a brand new secret key. Be sure to reproduction and stay it someplace protected as a result of we can use it later.

Retailer this secret key in a protected and out there location. You’ll now not have the ability to view it once more thru your OpenAI account. For those who lose this secret key, you’ll have to create a brand new one.

OpenAI New Secret KeyOpenAI New Secret Key

Step 3 – Create Your First Textual content-to-Speech

Now it’s time to create your first text-to-speech. Check with the code underneath, and exchange YOUR_API_KEY_HERE together with your precise API key.

curl https://api.openai.com/v1/audio/speech 
  -H "Authorization: Bearer YOUR_API_KEY_HERE" 
  -H "Content material-Kind: software/json" 
  -d '{
    "fashion": "tts-1",
    "enter": "hi international",
    "voice": "alloy"
  }' 
  --output instance.mp3

Instance:

curl https://api.openai.com/v1/audio/speech 
  -H "Authorization: Bearer sk-IfClJS63a7Ny3v6yKncIT3XXXXXXXXXXXXXX" 
  -H "Content material-Kind: software/json" 
  -d '{
    "fashion": "tts-1",
    "enter": "hi international",
    "voice": "alloy"
  }' 
  --output instance.mp3

Reproduction all of the code, paste it into your terminal (Home windows customers can use Command Suggested or PowerShell), and press Input.

That’s it! This motion will create an audio document known as instance.mp3 that claims “hi international”.

Different Adjustments You Can Make

Now that you simply’re aware of changing textual content into life like spoken audio the usage of the OpenAI Audio API, let’s delve into further changes you’ll be able to make that may affect the standard and magnificence of your TTS output.

Necessarily, you’ll be able to alter the next:

1. Type

The default fashion is tts-1, which gives fast reaction instances however at a relatively decrease high quality. You’ll be able to transfer to the tts-1-hd fashion for upper definition audio output.

Instance:

"fashion": "tts-1-hd"
2. Enter

Any textual content enclosed inside double quotes might be transformed into spoken audio.

Instance:

"enter": "hi there, how are you doing lately?"
3. Voice

Recently, there are six other voices to be had: alloy, echo, delusion, onyx, nova, and shimmer.

Instance:

"voice": "nova"
4. Output

By way of default, the output might be in .mp3 layout. Alternatively, you’ll be able to exchange the filename or make a choice from different supported audio codecs. The these days supported codecs come with:

  • Opus .opus: Perfect for web streaming and communications with low latency.
  • AAC .aac: Used for virtual audio compression, most well-liked by means of platforms like YouTube and gadgets like Android and iOS.
  • FLAC .flac: Supplies lossless audio compression, liked by means of audiophiles for archiving functions.

Instance:

--output myspeech.aac

FAQ

The place do I in finding the created audio document?

The output document is positioned in the similar folder or trail the place you performed the cURL script. To determine the present listing of your terminal (Home windows customers: PowerShell or Command Suggested), use the next command:

  • macOS Terminal – pwd
  • Home windows PowerShell – pwd
  • Home windows Command Suggested – cd

Can I create and use a customized reproduction of my voice?

This option isn’t these days supported by means of OpenAI.

How do different voice choices sound like?

You’ll be able to generate audio the usage of other voice parameters to listen to how different voices sound, or you’ll be able to consult with this web page to hear samples.

Does it enhance different languages?

Sure, it does enhance a couple of languages. I’ve examined it with Jap, Chinese language (Mandarin), Vietnamese, and Spanish, and so they appear to sound slightly cheap.

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