27 Best Free Speech to Text Software for Windows, Android, iOS And Mac
In the workplace, efficiency is crucial for success. The quicker you can produce results, the more you can focus on improving the more strategic aspects of your work. However, physically transcribing audio recordings, personal notes, verbal brainstorming ideas, and other documents is a tedious and time-consuming task that severely impacts the level of brainpower you can apply to other activities. Fortunately, there exists technology by the name of speech-to-text software. It allows you to type without your hands and use your voice to create documents. This article discusses the best speech to text software available today in various categories of machine learning solutions.
5 Best Free Speech to Text Software List
Here are our top five picks for the best free speech-to-text applications available on the internet.
1) Converse Smartly
We included Converse Smartly in this list of the best free speech-to-text software because of its powerful and robust technology. It can quickly and accurately convert any audio stream to text, including dialogue or discourse from team meetings, conferences, interviews, and seminars. It enables organizations and individuals to work faster and smarter with greater accuracy.
Created by Folio3, the primary aim behind Converse Smartly is to increase the workflow efficiency of any organization. The app uses advanced speech recognition technology based on the IBM Watson Speech API and the Natural Language Processing ToolKit. It is one of the best text-to-speech software with natural voices. Top features include:
– Speech Analysis
– Text Analysis
– Summary Generation
– Perform sentiment analysis
– Generate word cloud from input speech and writing
– Identify key entities and themes during speech or conversation
– Live Audio Transcription
– Detect multiple speakers
– Spot keywords
Compatibility: Any device with an internet connection, browser, and internet connection
Price: Free trial version
Demo Link: https://www.folio3.ai/converse-smartly-try-now/
2) Microsoft Dictate
Microsoft’s Dictate is here to prove that the even best text-to-speech software can be free and be just as good as premium software. Created by Microsoft Garage (a company division where employees get to work on their ideas as projects), this feature-rich application boasts the same advanced speech recognition technology that powers the Microsoft Cortana Virtual Assistant.
Dictate is a Microsoft Office add-on and works well with Word, PowerPoint, and Outlook. You can install it from the Microsoft store if you don’t already have it pre-installed with a copy of Microsoft 365. Once installed, you can access it through the “Dictation” tab in the top right of the Ribbon toolbar. The app supports voice commands for most standard operations, such as typing or editing text, moving the cursor to a new line, and adding punctuations manually or automatically.
Furthermore, the app offers features such as visual feedback to specify that it is processing speech input. Microsoft dictates also supports dictation with real-time translation in 60 different languages. Microsoft Dictate is compatible with Office versions 2013 and above and works well with Windows versions 8.1 and above.
Apps Compatibility: Windows devices only
Price: Free
Download Link: https://www.microsoft.com/en-us/garage/profiles/dictate/
3) Google Docs Voice Typing
Google Docs has now become an integral part of the lives of most content writers. Especially if you are already a google services user. So if you use Google products such as Gmail and Google Drive and need an in-built, powerful, yet free dictation tool, consider using Google Docs or Google Slides and use their Google Voice Typing tool. It enables you to type with your voice, and use over 100 view commands meant explicitly for editing and formatting your documents in any way you like, including making bullet points, changing the style of the text, and moving the cursor to different parts of the material.
To use Voice Typing through Google Docs, all you have to do is click on the “Tools” button and then select “Voice Typing” then allow Google access to your laptop or PC’s microphone.
Compatibility: Any Google Chrome compatible device
Price: Free
Download Link: https://www.google.com/docs/about/
4) Otter
Otter can be used for taking notes and as a collaboration app that records and transcribes any audio source as long as the speech is coherent. Common data sources include meetings, interview and other voice interactions with data processing in real-time. Created by AISense, Otter uses Ambient Voice Intelligence for some of the smartest and most accurate speech recognition tools out there. Transcriptions are available within minutes so you can share them with your team almost immediately.
Compatibility: Android and iOS
Price: Free 600 minutes/month; $9.99 for 6,000 minutes/month
Get it from: https://otter.ai/login
5) Speechnotes
Based on the Google speech-recognition engine, Speechnotes is a straight forward online tool for dictations and speech transcription. Since downloads, registrations or installations are unnecessary to use Speechnotes, so it is by far one of the more accessible dictation tools available on the internet.
Speechnotes is incredibly user-friendly too — it automatically capitalizes the beginning of your sentence, AutoSaves your documents, and has the option for you to dictate and type all at the same time. You’re your work is complete; you can manage your documents in a multitude of ways. You can either send it out through email, print and file it, export it to Google Drive, or download the files onto your computer.
Compatibility: Any device with Google Chrome installed and a microphone
Price: Free with an option to donate and upgrade to premium
Download Link: https://speechnotes.co/
what is Medical Transcription Software
Medical transcription software is a specialized type of software used in the healthcare industry to convert spoken or dictated medical reports into written text. Medical transcriptionists, who are trained professionals, use this software to transcribe recordings made by healthcare providers, such as physicians or other healthcare practitioners, into written documentation, such as medical reports, discharge summaries, and patient notes.
Medical transcription software typically includes features such as voice recognition technology, text editing tools, and medical terminology dictionaries to assist transcriptionists in accurately transcribing medical documents. The software may also have built-in templates for common medical documents, allowing for standardization and efficiency in the transcription process.
Some medical transcription software also includes additional features, such as the ability to integrate with electronic health record (EHR) systems, which allows for the seamless transfer of transcribed documents into patients’ electronic medical records. This can help improve workflow and reduce errors in medical documentation.
Medical transcription software may be used in various healthcare settings, including hospitals, clinics, private practices, and transcription service providers. It is an essential tool that helps healthcare providers create accurate and timely medical documentation, which is crucial for patient care, billing, and legal purposes.
8 Speech to Text Software Free Download for Windows 10
6) Window’s Speech Recognition (WSR):
Window’s Speech Recognition (WSR) is a good software for speech recognition, especially because it is specifically designed to work with Windows, and works best in its newest update with Windows 10. Most people reviewed it as good, not great, but also claimed that it is at par with Google Docs Voice Typing (GDVT) and is a Windows version of the same level.
The advantages specific to WSR are that it has computer automation and related features, because it is especially integrated into and designed for the Windows operating system, it has complete control over the computer and its features, like sleep or shutdown options, etc. In addition, it gives the user text editing options, whereby any mistakes can be there and then corrected.
Though, some downsides include the fact that it is not the most accurate voice recognition software available in the market, as its accuracy is on the weaker side, and it cannot be freely used with other operating systems is need be for a change.
Its unique selling point would be the fact that it can control the whole computer through the software options, and can edit as you go. It is also free of cost, without additional charges, and works fine with Windows 10.
7) Temi
Temi is a tool used for speech to text transcription, and is a highly advanced version of speech recognition software. It works when you upload any kind of file, be it audio or video, and it transcribes it in under five minutes. Eventually, the files can be stored in MS Word or PDF formats that especially belong to Windows, and can even be emailed.
This transcription tool gives ease of use to its users, who are effortlessly able to adjust the sound, speed of playback, skip any part if need be, and add timestamps too.
However, the quality of the transcription depends on the sound quality of the uploaded file, and the better the sound quality, the more accurate the results. Additionally, if files are too large, it may take a lot of time to transcribe, and crosses the five minute set benchmark. It also has a little difficulty understanding multiple different accents.
A unique point of Temi is that it has been built by speech recognition experts who are also masters of machine learning. There is a little cost attached if there is need of the whole software, though, multiple shorter trial versions are available for free. Journalists, bloggers and podcasters or authors can best use this tool for their field of work.
8) Microsoft Bing Speech API
This Microsoft API is used for transcription purposes of the speech into text of any kind of audio streams that are fed to it. What this application does it, that it either displays whatever the transcribed text is, or it can follow and act upon the command given in the speech. It is best used in scenarios requiring conversion, dictation or an interactive participation, and gives great recognition results.
There are two important features to it: the REST APIs, where developers can use calls, HTTP format and use the service. Or else, there are Client Libraries also available for downloading, that belong to various platforms such as Windows, iOS, Android, etc. for any kind of integration.
It has great accuracy, is highly easy to use, and not very expensive, with a free trial version also available to check it before making a minimal purchase. One of its major advantages is that it supports multiple languages, for example, about 5 languages in conversation mode and 15 languages when it comes into dictation mode, so multilingual transcription is also possible.
Though, it gives the most accurate results when used in a continuous and real-time form, and may be slower in transcribing than other software.
9) Kaldi
Kaldi is a free speech-to-text software for Windows and Linux operating systems and available under the Apache License. The software was developed at John Hopkins University and was meant to offer super high-quality speech recognition solutions for multiple languages and domains.
It’s one of the few speech recognition software that is fully supported by leading technologies including deep neural networks and others. Kaldi comes with full support for general linear algebra, as well as, offers an extensible design for features-space discriminative training.
The code of the software was released back in 2014 and since then the platform is known for its intuitive interface and highest-quality standard for speech to text conversion.
10) Simon
Simon is a technologically advanced and highly flexible speech recognition software, available for Windows and Linux free of cost. The software offers high-level customization for all applications, thus can be used with all systems wherever speech recognition is required. What’s even better is that Simon isn’t bounded by any language, and can work with high accuracy with all major dialects. The software essentially brings in the automation to replace the mouse and keyboard.
The technology behind Simon includes KDE libraries, along with HTK, and CMU SPHINX. The software is available open-source and free of cost for Windows and Linux operating systems. Apart from being a speech recognition software, Simon also allows controlling computers through voice commands. The software is equally suited for disabled people. The strong architecture behind Simon means it can easily be used with all languages and dialects. Simon can be used to control various software and applications including media centers, emails, web browsers, etc.
11) Verbit
Verbit brings advanced transcription and captioning features using artificial intelligence (AI). The software specifically is meant to help enterprises, and educational institutes in faster, and precise speech-to-text conversion.
The software leverage multiple speech models including neural network models, and AI algorithms to suppress the background noise and improve the accuracy of the transcription by understanding the speakers regardless of accent. The AI algorithms also enable software to identify and incorporate contextual events from the speech.
Overall, Verbit is an ideal solution for transcription services, even though the software does offer direct speech-to-text service.
12) Speech Texter (Web Chrome, Android)
Speech Texter is a free speech-to-text conversion software that specifically works on Chrome browser or with Android. While the app’s privacy policy does mention that it doesn’t store any of the text, the text may be processed by Google’s server (since you will be doing it online through Chrome browser or Android app). So, one should keep that in mind.
The application offers easy transcription of speech, with great accuracy. The platform does allow live transcription, where you can click start and begin talking. Once the transcription is done, the text is shown in the main window with the “Result Confidence Wheel”, showing the estimated percent of accurately transcribed words.
13) Vocola3
Vocola3 is yet another great free speech-to-text converter. The software works in association with “Window Speech Recognition”, which helps to improve the accuracy and speed of the transcription service.
To be able to use the software, you would have to activate Windows Speech Recognition, before installing the Vocola3. Once the software is installed, simply turn on the settings of Vocol3 from the system tray and you are good to start transcribing. To further improve the features and functionalities of the software, different extensions can also be integrated into the Vocola3.
Best Free and Paid Speech to Text Software for Windows in 2022
14) Dragon Professional Individual
Dragon by far the gold standard when it comes to speech recognition software even today. Filled with several features and extensive customization capabilities, Dragon Professional Individual is without question the best speech to text software available in the industry. Using deep learning technology allows the program to adapt to the user’s voice and environmental variations in real-time. Dragon automatically adds frequently used words and phrases to an internal repository to minimize the number of corrections.
Furthermore, using the Smart Format Rules, users can easily configure how they want specific items (e.g. dates, phone numbers) to appear. Dragon Professional Individual’s advanced personalization features allow for maximum flexibility coupled with efficiency and productivity. You can also import or export custom lists for words, acronyms and various business-specific terms. If that was not enough, you could even configure custom voice commands to do the actions you do most often. Or quickly inserting frequently used content (e.g. text, graphics) in documents, and even create time-saving macros to automate multi-step tasks with simple voice commands.
Compatibility: Any device with windows version 7 and up.
Price: $300
Download Link: https://www.nuance.com/dragon/business-solutions/dragon-professional-individual.html
15) Windows Dictation
If you would like a reliable speech to text software for Windows 10, you don’t even need to look elsewhere, as Microsoft’s newest OS already comes with one. The new and improved dictation feature lets you capture all your thoughts and ideas using only your voice both quickly and accurately. Furthermore, due to the deep integration between the app and Windows, Dictation works seamlessly with just about any text field in Windows 10. To start using the app, select a text field and press the “Windows + H” keys in combination to launch the dictation toolbar.
To insert any particular letter, number, punctuation mark, and symbols by just saying their names (e.g. to enter $, say “dollar symbol” or “dollar sign”). Dictation also supports numerous voice commands that allow you to select/edit text, move the cursor to a specified location, and more. However, Dragon is not available in any language besides U.S. English, and you require an internet connection.
Compatibility: Any devices with Windows version 8.1 and up
Price: Free
Get it from Windows or visit:
https://support.microsoft.com/en-us/help/4042244/windows-10-use-dictation for more details
16) Briana Pro
Braina Pro is a personal virtual assistant with artificial intelligence as its backbone. The app can process over 100 languages and can automate various computer tasks, set alarms and reminders. Furthermore, Briana Pro can also serve as a dictionary and thesaurus with text to speech options as well.
Compatibility: Any devices with Windows installed and a microphone
Price: $239
Download Link: https://www.brainasoft.com/braina/download.html
Best Free Trial Speech to Text Apps for Android
17) Gboard Voice Typing
Of the many keyboard apps available for Android, Gboard is arguably the most popular and is one of the best free text to speech software available. Google’s keyboard comes with several attractive features, such as glide typing and one-handed mode. But aside from these, it also boasts robust speech recognition capabilities. You can use your voice for anything and everything from writing emails to responding to text messages. Gboard’s Voice Typing works with any Android app that accepts text input. To use the feature, all you have to do is tap the microphone icon (located at the right side of Gboard’s suggestion strip), and start dictating when “Speak now” is displayed.
Any errors in the transcribed text can be manually corrected. You can also use Gboard’s Voice Typing functionality to replace words in any document or message. For this, select the target word, and tap the microphone icon. Once “Speak now” is displayed, say the new word to have it replace the existing word. Gboard supports dictation in multiple languages and offers offline use as well.
Compatibility: Any Android device
Price: Free
Download Link: https://support.google.com/gboard/answer/2781851?co=GENIE.Platform%3DAndroid&hl=en
18) Dragon Anywhere
Dragon Anywhere brings you superior dictation capabilities wherever you may be with high-quality speech recognition and desktop apps. Although an internet connection is a must, it is a small price to pay for this versatile software. Dragon Anywhere is the mobile version built for both Android and iOS devices, which is rare. However, Dragon anywhere is not ‘lite’ in any way and offers fully-formed dictation capabilities powered by the cloud.
The app also facilitates removing and adding boilerplate chunks of text with a single command along with auto-syncing of custom vocabularies between the mobile app and desktop Dragon software. However, you can only translate text from within Dragon Anywhere. You cannot use it in other apps and directly input your text. Nonetheless, even with these limitations, it is still an excellent application to use for all your speech to text needs.
Compatibility: Android, iOS | Features: Dictation, sync with Dragon Professional and cloud services
Price: 7-day free trial; 12 months @ $149.99/year; 1 month @ $14.99/month
19) English Voice Typing Keyboard
English Voice Typing Keyboard – Voice to Text Converter as it instantly converts spoken words to text format with high accuracy.
With the advancement in technology and the rapid growth of the world English Voice Typing keyboard – Voice to Text will facilitate your life. Voice to text apps can be a treat for busy professionals who don’t even find time to have a conversation with their loved ones. Voice typing is actually a speech recognition tool that records, analyzes and interprets the phrases and words you speak and converts your voice into words much faster than it would take you to type. This feature is useful for visually impaired people to take notes and convey their messages in the easiest way. Voice typing in English will increase your confidence in speaking English in such a way that if you do not understand any phrase, word or sentence, it will confirm it and give alternative suggestions. With each update, app developers try to innovate new core features.
In addition to voice typing, it also has built-in aesthetic wallpapers, funky stickers and cute emojis that will blow your mind. The application is very convenient to use while dealing with clients who do not speak the same language as you or useful for those who have moved abroad for study or business purpose. Speechnotes is exemplary for codifying long notes, is a delight for the students to take notes and will save them in chats for later.
Price: Free
Accuracy Rate: Not disclosed
20) E-Dictate App
E-Dictate is an Android application for converting voice to text with an interpreter
One of the most reliable free online applications with which you type your voice and translate text
E-Dictate – is the most secure, highly accurate, and intuitive speech recognition application available for Android smartphones. You can use it to do the following:
– Dictate in any language of the world and watch the text print on the screen
– You can convert thousands of phrases into the text;
– You can send all content via e-mail or messaging applications
– Record your voice and later convert the mp3 file to text
This software is designed for bloggers, writers, drivers, runners, busy people, teenagers, visually impaired people who have difficulty finding letters on the keyboard, and those who prefer to type quickly and easily.
Unlike other one-touch speech-to-text applications, turn on the recording and start speaking, and the application will convert your speech to text, and the longer you spend using it, the artificial intelligence “learns” your voice.
What can this app do that turns your voice into text using voice recognition technology?
– It is useful for writing long and short texts. Dictate freehand for hours! Punctuation for voice input; continuous speech recognition; recall the command for the last voice input, triggered by a button or voice.
– The percentage of accuracy of speech-to-text conversion exceeds 96 and clearly shows the best quality compared to other voice-to-text conversion software.
– Copy, edit, share, export notes, and print with just one click.
– Automatic capitalization.
– The size of this best application for converting voice to text is only 20MB.
For desktops, laptops go to: https://dictate.pro
Playstore: https://play.google.com/store/apps/details?id=rs.edukom.diktat
Best Free Speech to Text Apps for Mac/iPhone/iOS Devices
21) Apple Dictation
Apple Dictation is one of the best free speech to text software that comes built-in with most Apple devices. It uses Siri’s servers to process up to 30 seconds of speech at a time (remember to connect to the internet). Apple Dictate is the ideal option for quickly getting your thoughts down on paper. Still, if you want to create content with longer for your voice and you’ve upgraded your Mac’s operating system to version 10.9 or later, then the better option would be Enhanced Dictation.
Furthermore, Apple Dictate helps you transcribe speech to text without an internet connection and is especially handy when faced with time constraints. With more than 70 voice commands, you can effectively control all your Mac’s actions, including typing, editing, and formatting for any document.
Compatibility: Mac
Price: Free
Get it from the Mac device’s Apple Menu by going to System Preferences, then click on keyboard and then go to dictation.
22) Voice Texting Pro
Voice Texting Pro is a professional app built by Sparking Apps with a 4+ rating App Store. It requires iOS version 5.1.1 or later since that app works best on the iPhone 5. Furthermore, much like most Apple software, the app prioritises the User Interface (UI) above all else, so it is effortless to use. All of its features are available from a single screen, and there are many in-app purchases available, including voice texting and adding languages.
Compatibility: Mac/iOS devices
Price: Free
Get it from the Apple App Store or https://apps.apple.com/us/app/voice-texting-pro/id542300792
5 Best Speech to Text Recognition Software for Windows 11
To fully utilize the benefits of speech to text recognition software, you need to look for apps that cater directly to your business needs.
Here we have chosen some of the best speech to text recognition software available for Windows 11 along with its positives and negatives so that you can easily find an app that matches all your business needs.
23) Dragon Naturally Speaking
Dragon Naturally Speaking is one of the highest rated speech to text recognition software options available in the market, specifically if you want to integrate your program with Windows 11.
The app transcribes information from audios three times faster than regular typing can, while boasting an accuracy rate of 99%.
Dragon Naturally Speaking instantly records all the words you speak on screen in real-time and it comes with support for Windows touchscreen PCs.
The software has different versions. Dragon Naturally Speaking Home edition is suitable for students, parents, and general at-home multitasking. The professional version is for office use and has a greater speed and accuracy.
Pros:
- The software can edit the text in real-time
- You can use your voice for google searches, organizing your calendar, and emailing friends and work colleagues at the same time
- It is extremely accurate
- Excellent customer care
- The website helps you learn how to use the app correctly
- The app adapts to accents and dialects
Cons:
- The app may occasionally collapse when integrating with Outlook
- Certain combinations of voice messages and commands can be difficult for the system to understand and respond to
Pricing:
Dragon Naturally Speaking Professional Version is available for Windows for a total one-time payment of 500 USD.
The software offers a 30-day money-back guarantee.
24) e-Speaking
e-Speaking is dictation software that is an optimal option for Windows 11 because it uses Microsoft’s speech application program and interface and net framework.
The app allows you to control your computer through your voice. You can dictate documents, transcribe voice messages, document emails, and even read text out loud.
e-Speaking comes with multiple in-built functions, that allow you to perform a lot of tasks together. For example, you can access the internet and Excel while transcribing. Along with this, the software is very customizable as new commands can be added to it.
Pros:
- The app integrates well with Windows
- It is customizable and new commands can be added to meet your particular business operations
- It offers tutorials and excellent customer support
- The software is very user-friendly and is a great option for users with disabilities
Cons:
- e-Speaking is not as accurate as other speech to text recognition software
Pricing:
e-Speaking is very affordable as an upgrade license costs 14 USD. The app also offers a 30-day free trial version.
25) Speechmatics
Speechmatics is speech to text recognition software that automates the transcription process through its machine learning technology.
Speechmatics can convert saved audio and video files into text, as well translating in real-time. The app also uses commands like keyword searches to make going through translations more comprehensive.
Speechmatics is also well-equipped to support a range of accents.
Pros:
- It can comprehend multiple accents
- It can comprehend multiple languages
- It is comprehensive and has features like keyword searches and media captioning
- It boasts both high speed and accuracy
Cons:
- It does not offer a free trial version
- You have to manually confirm that your transcription is complete, it does not automatically inform you of a document’s completion
- The documents created are all PDFs and cannot be edited
Pricing:
Speechmatics offers 600 minutes of free speech to text recognition, but it does not have a proper free trial.
Speechmatics is available for 8.33 USD per month.
26) Microsoft Azure Speech to Text
Microsoft Azure speech to text is cloud-based software that is a part of Azure’s platform for cognitive services.
The software allows real-time transcription, as well as transcription of saved video and audio files. The app also has functions that can cater to accents, speech patterns, and even background noise.
Microsoft Azure is highly customizable and offers settings that can adjust to specialist terminology, product and place names, and technical information.
Pros:
- The app can cater to multiple speakers at one time and can distinguish between their voices
- It offers customization for proper nouns
- It is highly accurate and reliable
Cons:
- The software is complicated to set up and the process can be take a lot of time
- It does not offer a wide range of language translations
Pricing:
The standard cost pricing for Microsoft Azure Speech to Text software is 1600 USD for 2000 hours, with 0.80 USD per hour.
27) IMB Watson Speech to Text
IBM Watson Speech to Text is a cloud-based speech to text recognition software. It has the option to transcribe in real-time, as well as the ability to download multiple audio files and then transcribe and translate them collectively.
The app has features that allow you to use smart formatting, timestamps and implement editing for technical words, acronyms, and numbers.
Pros:
- The app is easy to install and use
- It has a feature for smart formatting
- The software allows you to process multiple audio files at one point in time
Cons:
- The app may be considered expensive
- Its ability to recognize multiple speakers may be a bit complex to use
Pricing:
The software costs 80 USD per month or 960 USD per year.
Best speech to text Software FAQs:
Is there speech to text on Microsoft Word?
Yes, dictation technology is available for Microsoft Word independently and as a part of Windows 10. Just press the Windows and H key to launch the toolbar and start speaking. However, it is best to use the Microsoft Office speech to text tool since it will work seamlessly with any Office product. Here’s how you can activate the dictation feature if you are an Office 365 subscriber https://support.office.com/en-us/article/dictate-your-documents-d4fd296e-8f15-4168-afec-1f95b13a6408.
What is the best voice recognition software for Mac?
The best text to speech software for Mac systems is the built-in Apple Dictation software. It is also one of the best text to speech software with natural voices. To use it, go to the Apple menu to activate and enjoy.
Conclusion
In recent years, dictation software has become a staple for individuals and organizations alike as it becomes more readily available. It has become more comfortable to use, less expensive, and once you become experienced enough, it can significantly increase writing speed and make you more productive. Even if you’re not using the best speech to text software, it is still a necessary tool for people with accessibility issues or people trying to prevent repetitive stress disorders from typing too much.
However, remember that dictation may not always be right for every ask. It is best to use it for writing speeches, dialogue or commentary. Dictation can also be used effectively for making lists and writing notes. Fortunately, there exists technology by the name of speech to text software, thanks to the software development services that are available to us.
Please feel free to reach out to us, if you have any questions. In case you need any help with development, installation, integration, up-gradation and customization of your Business Solutions. We have expertise in Deep learning, Computer Vision, Predictive learning, CNN, HOG and NLP.
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