The way to Flip Textual content to Speech with OpenAI

by DS | Nov 9, 2023 | Etcetera | 0 comments

OpenAI has simply in recent years presented the Audio API that includes a text to speech serve as referred to as speech, in step with their TTS (text-to-speech) era. This feature provides six built-in voices named Alloy, Echo, Delusion, Onyx, Nova, and Shimmer.

The ones voices can be extraordinarily useful for tasks similar to narrating blog posts, creating spoken audio in various languages, together with voiceovers to video tutorials, or delivering real-time spoken feedback. In my revel in, the output is impressively natural-sounding. For many who don’t appear to be using any text-to-speech gear, then this offering by way of OpenAI is something you will have to consider attempting.

In this article, we’ll uncover how to prepare OpenAI’s TTS and create your first text-to-speech device. For this demonstration, we will be able to be using the following setup:

Running Instrument – macOS
Instrument – Terminal
Programming Language – cURL

This data could also be appropriate to House home windows shoppers. Where important, I’ll indicate any equipment and directions that vary from those used on macOS.

Table of Contents

Step 1 – Set Up cURL

Many operating methods come with cURL pre-installed. If no longer, we will be able to first arrange Homebrew, a package manager for macOS, which we will be able to then use to place in cURL.

Check if cURL is Installed

To check if you already have cURL for your tool, remember to’re connected to the Internet, then sort the following command for your Terminal:

House home windows shoppers: Use Command Steered or House home windows PowerShell

curl https://platform.openai.com

If cURL is ready up accurately and also you’ve were given an Internet connection, it’ll send an HTTP request to retrieve the contents of platform.openai.com, and likewise you will have to see output similar to this screenshot:

The right way to Arrange cURL

For many who come throughout an error indicating that cURL isn’t installed, you’ll be capable to arrange it by way of following the equipped steps.

House home windows shoppers: The way to set up cURL on Home windows.

Open a brand spanking new Terminal window, and enter the directions beneath to first arrange Homebrew:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/arrange/HEAD/arrange.sh)"

After setting up Homebrew, use the following command to place in cURL:

brew arrange curl

In any case, run the command beneath to set the Homebrew style of cURL for the reason that default one for your shell:

echo 'export PATH="$(brew --prefix)/make a selection/curl/bin:$PATH"' >> ~/.zshrc
provide ~/.zshrc

Step 2 – Get API Key from OpenAI

To procure your API key, first transfer to openai.com, log in, and then click on on on “API keys” throughout the sidebar.

On the API keys internet web page, click on on “+ Create new secret key“, give it a name, and then click on on “Create secret key“.

Shortly, you’re going to download a brand spanking new secret key. You’ll want to replica and keep it somewhere safe because of we will be able to use it later.

Store this secret key in a safe and in the market location. You’ll no longer be capable to view it yet again through your OpenAI account. For many who lose this secret key, you’ll must create a brand spanking new one.

Step 3 – Create Your First Text-to-Speech

Now it’s time to create your first text-to-speech. Take a look at with the code beneath, and trade YOUR_API_KEY_HERE along side your actual API key.

curl https://api.openai.com/v1/audio/speech 
  -H "Authorization: Bearer YOUR_API_KEY_HERE" 
  -H "Content material material-Sort: device/json" 
  -d '{
    "model": "tts-1",
    "input": "hello world",
    "voice": "alloy"
  }' 
  --output example.mp3

Example:

curl https://api.openai.com/v1/audio/speech 
  -H "Authorization: Bearer sk-IfClJS63a7Ny3v6yKncIT3XXXXXXXXXXXXXX" 
  -H "Content material material-Sort: device/json" 
  -d '{
    "model": "tts-1",
    "input": "hello world",
    "voice": "alloy"
  }' 
  --output example.mp3

Replica the entire code, paste it into your terminal (House home windows shoppers can use Command Steered or PowerShell), and press Enter.

That’s it! This movement will create an audio report referred to as example.mp3 that says “hello world”.

Other Changes You Can Make

Now that you just’re conscious about converting text into existence like spoken audio using the OpenAI Audio API, let’s delve into additional adjustments you’ll be capable to make that can impact the usual and style of your TTS output.

Essentially, you’ll be capable to adjust the following:

The fashion used,
the enter textual content,
the voice decided on,
and the output document, along side its structure.

1. Sort

The default model is tts-1, which supplies speedy response cases on the other hand at a fairly lower top quality. You’ll be capable to switch to the tts-1-hd model for higher definition audio output.

Example:

"model": "tts-1-hd"

2. Input

Any text enclosed inside of double quotes may well be remodeled into spoken audio.

Example:

"input": "hello there, how are you doing in recent years?"

3. Voice

Not too long ago, there are six different voices available: alloy, echo, fable, onyx, nova, and shimmer.

Example:

"voice": "nova"

4. Output

By means of default, the output may well be in .mp3 structure. However, you’ll be capable to trade the filename or choose from other supported audio formats. The nowadays supported formats include:

Opus .opus: Best possible for internet streaming and communications with low latency.
AAC .aac: Used for digital audio compression, preferred by way of platforms like YouTube and units like Android and iOS.
FLAC .flac: Provides lossless audio compression, favored by way of audiophiles for archiving purposes.

Example:

--output myspeech.aac

FAQ

Where do I find the created audio report?

The output report is located within the equivalent folder or path where you carried out the cURL script. To decide the prevailing list of your terminal (House home windows shoppers: PowerShell or Command Steered), use the following command:

macOS Terminal – pwd
House home windows PowerShell – pwd
House home windows Command Steered – cd

Can I create and use a custom designed replica of my voice?

This feature isn’t nowadays supported by way of OpenAI.

How do other voice possible choices sound like?

You’ll be capable to generate audio using different voice parameters to hear how other voices sound, otherwise you’ll be capable to visit this web page to listen to samples.

Does it give a boost to other languages?

Positive, it does give a boost to a few languages. I’ve tested it with Japanese, Chinese language language (Mandarin), Vietnamese, and Spanish, they usually seem to sound quite reasonable.

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