Automatic Speech Recognition

AppTek's ASR converts speech into text utilizing patented neural network technology for precise transcriptions of audio from a variety of sources and languages.

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Award-winning automated speech-to-text technology
to deliver high quality results for enterprise applications.

AppTek’s award-winning and industry-leading advanced automatic speech recognition (ASR) technology is built on decades of expertise developing AI-based language processing models.  AppTek's ASR converts speech into text utilizing patent neural network technology for precise transcriptions of audio from a variety of sources and languages. The platform is designed for the full range of natural language conversations, from high quality broadcast content to low bandwidth telephony audio, and across a variety of languages, to support the most robust enterprise and government applications.  No matter the business case, the amount of audio for transcription of the size of your team, by working directly with industry experts, AppTek assures the highest quality speech-to-text results.

Supports the Full Range of Audio Types

Achieve highly accurate audio-to-text results transcribing content from broadcast media and entertainment, telephone conversations, podcasts, meetings, or one-on-one office interviews.

Customization and Domain Adaptation

AppTek’s scientists can tailor the ASR for enhanced recognition and understanding through customizing models for your proprietary content or by adapting the ASR for particular subject domains.

Comprehensive Deployment Options

AppTek’s ASR can be delivered in batch or real-time and can be deployed on-premise for private storage or in the cloud for simple SaaS-enabled processing.

Industry Leading ASR Speech-to-Text Across 60+ Languages and Dialects

AppTek offers Automatic Speech Recognition (ASR) for a diverse set of languages and wide range of dialects for both narrowband (telephony) and wideband (media) audio.   Additionally, we can work with clients to train new customized language models, even across low resource languages, for their exclusive use.

  • Afrikaans
  • Arabic (13 dialects)
  • Bengali
  • Bulgarian
  • Chinese (3 dialects)
  • Czech
  • Danish
  • Dari
  • Dutch
  • English (14 dialects)
  • Estonian
  • Farsi
  • Finnish
  • French (2 dialects)
  • German (2 dialects)
  • Greek
  • Greek
  • Hebrew
  • Hindi
  • Hungarian
  • Indonesian Bahasa
  • Italian
  • Japanese
  • Kannada
  • Korean
  • Latvian
  • Lithuanian
  • Malay
  • Maltese
  • Marathi
  • Pashto
  • Persian/Farsi/Dari
  • Polish
  • Portuguese (2 dialects)
  • Romanian
  • Russian
  • Slovak
  • Slovenian
  • Spanish (7 dialects)
  • Swedish
  • Tagalog
  • Tamil
  • Thai
  • Turkish
  • Ukranian
  • Urdu
  • Vietnamese

AppTek Automatic Speech Recognition - Test Drive Our Cloud API

Try AppTek's leading ASR technology and see the results for yourself.

Test-drive AppTek's Automatic Speech Recognition technology to transcribe your spoken content into text.  With our base models, you can get an idea of the quality of content in your selected language.  However, note we work with our customers on a one-by-one basis to deliver customized models better suited to your content which will drive better quality over time.  

Try a Demo of AppTek's ASR Technology


AppTek helps you deliver customized learning models for your application.

AppTek is committed to a customer-first approach, working with clients to deliver meaningful and accurate translations for every application every time.

Advanced Innovations in ASR Neural Network Technologies

Speaker Diarization

Analyze and track separate speakers in a multi-participant conversation. AppTek includes timestamps of speaker changes via same-channel or multi-channel audio.

Automatic Punctuation

Machine learning models automatically punctuate speech-to-text transcriptions (commas, question marks, etc.) for higher sentence accuracy.

Intelligent Formatting

AppTek's ASR converts dates, times, numbers, currencies, etc. into more conventional and readable formats.

Numeric Redaction

Mask or remove sensitive numeric content such as credit card numbers or social security numbers from final transcripts.

Multichannel Recognition

Identify and separate speakers in meetings where participants are recorded via separate channels, such as a conference with a microphone array or a two-channel  call.

Noise Adaptation

Improve output accuracy even in noisy audio environments and recording channels.

Latest Scientific Approaches for Automatic Speech Recognition

AppTek consists of world-leading research scientists with an extensive list of academic publications contributing to the advancements in neural network and machine learning science. Our team is in the cutting-edge of speech science with deep industry expertise and ASR development with focus including:

  • Acoustic modeling: hybrid Hidden Markov models,
    LSTM-RNN, and attention modeling
  • RNN-based language modeling
  • End-to-end modeling
  • Efficient search and decoding
  • Far-field speech recognition

Automatic Speech Recognition Solutions for Your Industry


Enable speech-to-text with assistive technology for hard-of-hearing persons to improve communication and conversational access.

Customer Engagement

Deploy speech analytics for deeper insights into the customer experience while gauging sentiment, brand perception and more.


Capture and transcribe 100% of your conversations to analyze, evaluate and ensure compliance with industry regulations.

Interview Suite

Transcribe witness/subject statements to reduce the process of manually reviewing audio files for instant keyword or phrase retrieval from recorded audio.

Media and Entertainment

Create real-time closed captioning from live media files to improve accessibility of content; Archive media assets.


Deliver a better customer experience by integrating voice enabled access points combined with NLU offering for mobile applications.

Have questions? Contact AppTek today!

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AppTek is a global leader in artificial intelligence (AI) and machine learning (ML) technologies for automatic speech recognition (ASR), neural machine translation (NMT), natural language processing/understanding (NLP/U) and text-to-speech (TTS) technologies. The AppTek platform delivers industry-leading solutions for organizations across a breadth of global markets such as media and entertainment, call centers, government, enterprise business, and more. Built by scientists and research engineers who are recognized among the best in the world, AppTek’s solutions cover a wide array of languages/ dialects, channels, domains and demographics.

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