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Open source voice changers: A comprehensive guide

Cliff Weitzman

Cliff Weitzman

CEO e fundador da Speechify

Gerador de voz com IA nº 1.
Crie narrações com qualidade humana
em tempo real.

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50M+ usuários

In an increasingly digital and connected world, the ability to modulate one's voice has opened up a plethora of creative, professional, and recreational opportunities. Whether you are an enthusiastic gamer, a podcaster, a content creator, or simply someone who enjoys a good laugh with friends, an open-source voice changer can be an essential tool in your kit.

Let’s explore the fascinating world of open source technology and voice changers, discussing how they work, their varied uses, and some of the best open-source voice changer options available in the market.

Understanding open source technology

The foundation of the term "open source" lies in the context of software development. Open source technology refers to a type of software whose source code is made available for anyone to view, modify, or distribute freely. This characteristic is crucial in fostering a community-based software development approach where individual developers, groups, or organizations contribute towards the development, debugging, and enhancement of the software.

In essence, open source technology operates on a collaborative and transparent basis, encouraging the enhancement of the software by leveraging the collective perspectives, knowledge, and skills of its user community. This open and communal structure enables constant updates, improvements, and customization to the software, providing a dynamic, evolving tool that is shaped by the needs and inputs of its diverse user base.

What are voice changers?

A voice changer is a unique and exciting piece of software technology that allows users to significantly alter the sound of their voice. As the name suggests, these tools facilitate voice modifications either in real-time, while the user is speaking into a microphone, or by modifying pre-recorded audio files. The scope of voice transformations provided by these tools is extensive. This transformation can be as simple as morphing a male voice into a female voice, a girl's voice to a chipmunk's, or even turning your speech into the mechanical monotone of a robot.

However, the capabilities of these software extend beyond basic morphing. Advanced voice changers provide options for users to create custom voices with unique voice effects or sound effects. These can range from echo, distortion, or pitch shifting, all the way to more intricate modifications that simulate various environments, age, or character voices. The result is a broad canvas for vocal creativity that caters to a multitude of personal, professional, and recreational needs.

How to change your voice with voice changers

To start with voice changing, users first need to install a voice changer software on their device. This software can be used on various platforms like Windows, Mac, Linux, Android, or iOS. The software typically requires the user to select an input device, usually a microphone, where it captures the audio input for modification.

After installation, the software usually provides a tutorial on how to configure it for different applications, such as VOIP services (like Teamspeak, Skype, or Viber), gaming platforms (like Discord or Steam), video conferencing tools (like Zoom or OBS), or social media platforms.

Users can then select from a range of different voices, voice effects, and sound effects, from a soundboard or create their voice filters. Some advanced tools like AI voice changer even use artificial intelligence for voice morphing, offering a highly realistic output.

Where can you use voice changers?

Voice changers, celebrated for their versatility, find their place across a spectrum of uses. The most prominent application is within the realm of video games, where players often use voice changers for in-game voice chat, enabling them to enhance their role-playing or immersion experience. Platforms like Discord even have dedicated tools such as the Voice Changer for Discord to simplify the process for gamers.

For streamers, particularly on Twitch, voice changers are instrumental in engaging their audience by altering their voices or providing exciting voiceovers, often using a voice modulator for these transformations. These tools also serve as a safeguard for streamers wishing to conceal their natural voice for privacy reasons.

Outside of gaming, voice changers have carved out a fun niche in the world of pranks, with the voice modulator feature often being used to alter voices to unrecognizable levels. Professionals too find value in these tools, using them to add varied audio effects to their presentations or podcasts, enhancing listener engagement.

On social media, content creators use voice changers to modify voices in video content, enriching their content with a unique auditory experience. Businesses also leverage voice changers, especially for text to speech services, making their digital interfaces more accessible. Hence, the broad applications of voice changers emphasize their adaptability and widespread utility in the digital era.

Top open source voice changers

Several voice changer apps are available today, with both free and paid versions. Remember to always respect others' privacy and legal guidelines while using voice changer software. With that in mind, let your creativity flow with these tools, be it for a gaming session, a podcast, or a fun-filled prank with friends.

Here are some of the best open-source voice changers available for free download:

Voicemod

This real-time voice changer offers extensive voice options. It's popular among gamers for use on Discord, Fortnite, and Twitch. The free version provides a limited set of voice options, but users can access more with a paid upgrade.

Clownfish Voice Changer

Available for Windows, Clownfish offers a simple and user-friendly interface that works system-wide. You can use it with any application that uses a microphone. It also supports text to speech and sound effects.

MorphVOX Jr

While the junior version is free, MorphVOX Pro offers more sophisticated voice changing features. It works well on Windows, and Mac and includes a variety of voice effects.

AV Voice Changer

This software works great for real-time voice changing on Windows. It allows for detailed voice modification and supports many applications like Skype, Discord, and Teamspeak.

Voxal Voice Changer

A product by NCH software, Voxal Voice Changer offers an impressive set of voice changing features. It works with almost all applications that can capture audio from a microphone.

High-quality voice generation with Speechify Voiceover Studio

While not open-source, Speechify Studio voice changer allows users to transform voice recordings into over 1,000 lifelike AI voices. Whether you're working with recorded dialogue or live narration, you can switch the voice to one that better fits your character, scene, or target audience. The voices include a wide array of accents and both male and female vocal tones, and most importantly, Speechify Studio’s voice changer maintains the nuances of the speech—emotion, inflection, timing—that make human delivery so powerful. For audiobook producers, game developers, educators, and anyone crafting voice-driven content, this feature unlocks the ability to tell stories with greater range, realism, and emotional impact.

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Cliff Weitzman

Cliff Weitzman

CEO e fundador da Speechify

Cliff Weitzman é um defensor da causa da dislexia e o CEO e fundador da Speechify, o aplicativo número 1 de conversão de texto em fala do mundo, com mais de 100.000 avaliações 5 estrelas e líder de downloads na App Store na categoria Notícias & Revistas. Em 2017, Weitzman foi incluído na lista Forbes 30 under 30 por seu trabalho para tornar a internet mais acessível a pessoas com dificuldades de aprendizagem. Cliff Weitzman já foi destaque em veículos como EdSurge, Inc., PC Mag, Entrepreneur, Mashable, entre outros importantes meios de comunicação.

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Sobre o Speechify

Leitor de texto para fala nº 1

Speechify é a principal plataforma mundial de texto para fala, utilizada por mais de 50 milhões de usuários e avaliada com mais de 500.000 avaliações cinco estrelas em seus apps de texto para fala para iOS, Android, extensão para Chrome, aplicativo web e aplicativo para desktop Mac. Em 2025, a Apple premiou o Speechify com o prestigioso Prêmio de Design da Apple na WWDC, chamando-o de “um recurso fundamental que ajuda as pessoas a viverem melhor”. O Speechify oferece mais de 1.000 vozes naturais em mais de 60 idiomas e é utilizado em quase 200 países. Entre as vozes de celebridades estão Snoop Dogg, Mr. Beast e Gwyneth Paltrow. Para criadores e empresas, o Speechify Studio oferece ferramentas avançadas, incluindo gerador de voz com IA, clonagem de voz com IA, dublagem com IA e seu alterador de voz com IA. O Speechify também potencializa produtos de ponta com sua API de texto para fala de alta qualidade e excelente custo-benefício. Em destaque no The Wall Street Journal, na CNBC, na Forbes, no TechCrunch e em outros grandes veículos de notícias, o Speechify é o maior provedor de texto para fala do mundo. Acesse speechify.com/news, speechify.com/blog e speechify.com/press para saber mais.