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DeepSpeech VS CMU Sphinx

Compare DeepSpeech VS CMU Sphinx and see what are their differences

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DeepSpeech logo DeepSpeech

DeepSpeech is an open source embedded (offline, on-device) speech-to-text engine which can run in real time on devices ranging from a Raspberry Pi 4 to high power GPU servers.

CMU Sphinx logo CMU Sphinx

CMU Sphinx is a speaker-independent large vocabulary continuous speech recognizer released under...
Not present
  • CMU Sphinx Landing page
    Landing page //
    2022-12-17

DeepSpeech features and specs

No features have been listed yet.

CMU Sphinx features and specs

  • Open Source
    CMU Sphinx is free and open source, allowing developers to use, modify, and distribute the software without any licensing costs.
  • Offline Functionality
    CMU Sphinx can be used for offline speech recognition, making it suitable for applications where internet connectivity is unreliable or unavailable.
  • Flexible and Extensible
    CMU Sphinx provides a variety of tools and libraries that can be extended and customized for specific use cases, such as adapting it to recognize domain-specific vocabulary.
  • Multiple Language Support
    Supports various languages and accents, making it versatile for global applications.
  • Custom Models
    Allows the creation of custom acoustic and language models tailored to specific applications, thereby improving accuracy in specialized environments.

Possible disadvantages of CMU Sphinx

  • Accuracy
    CMU Sphinx often has lower recognition accuracy compared to more modern, deep learning-based speech recognition systems.
  • Complex Setup
    Setting up and configuring CMU Sphinx can be complex and requires a significant understanding of speech recognition technology.
  • Limited Community Support
    The user community and support for CMU Sphinx are not as large or active as those for some commercial or newer open-source alternatives.
  • Resource Intensive
    Running CMU Sphinx, especially with large custom models, can be resource-intensive, requiring significant CPU and memory resources.
  • Lagging Behind in Technology
    CMU Sphinx has not kept pace with recent advancements in speech recognition technology, particularly deep learning innovations employed by newer systems.

DeepSpeech videos

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DeepSpeech | Speech to Text | Common Voice | Donate Your Voice

CMU Sphinx videos

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Training CMU Sphinx Speech Recognition

Category Popularity

0-100% (relative to DeepSpeech and CMU Sphinx)

DeepSpeech

CMU Sphinx

Knowledge Sharing
12 12%
Knowledge Sharing
88% 88
Speech Recognition And Processing
16 16%
Speech Recognition And Processing
84% 84
Knowledge Search
28 28%
Knowledge Search
72% 72
Tool
0 0%
Tool
100% 100

User comments

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What are some alternatives?

When comparing DeepSpeech and CMU Sphinx, you can also consider the following products

Kaldi - Kaldi is a toolkit for speech recognition written in C++ and licensed under the Apache License v2.0.

Express Dictate Digital Dictation Software - Express Dictate software is a voice recording program that works like a dictaphone.

Word Online - Word Online, part of Office Online, is the online version of Microsoft Word.

LipSurf - "Siri for Chrome" Completely control the browser without your hands -- say "google...

ConstEdit - ConstEdit word processor is a Google Chrome web browser extension.

TextFromToSpeech - Free online speech recognition tool that will help you write text with your voice without typing.

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