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Speech Annotation Service

Speech Annotation Service

High-quality speech annotation
capable of creating multilingual speech training data

Over 48 million teacher data creation achievements,
including GAFAM

At Human Science, we have been operating in manual production and translation services for over 35 years.
Our diverse core skills, cultivated through extensive experience, are also applied to our annotation business.
We solve customer challenges through various operational methods tailored to each project, including remote work, onsite support, and on-premises deployment at client locations.

What is speech annotation?

Voice annotation involves identifying speakers, transcribing spoken content, and performing sentiment analysis on audio files. By carrying out this work, AI models can understand and analyze audio more accurately.
Such tasks are utilized in a wide range of fields, including improving speech recognition technology and enhancing the efficiency of customer support.

What is speech annotation?

Do you have any of these concerns
related to voice annotation?

  • There is a shortage of personnel who highly practice
    understanding of multiple languages and
    understanding of context.

  • There are many exceptions and edge cases
    not covered in specifications or manuals,
    and information and quality control
    are not thoroughly managed.

  • We often handle confidential information,
    and have concerns about security and data management.

Human Science Co., Ltd. is...

We solve your problems related to voice annotation

Human Science Voice Annotation
FeaturesFeature

Feature01

Creation of multilingual voice teacher data is also
possible with a team of native speakers
Using the resources cultivated through our translation business, we can also create training data with multilingual speech synthesis, including Japanese, English, Chinese, Korean, and more. Native speakers of each language handle the annotation, enabling context understanding and the creation of highly accurate speech training data.

Feature02

Education and Information Communication for Workers to Achieve High Quality
The quality of annotation heavily depends on the individuals. Therefore, our company operates projects with registered workers who have passed a trial, conducting worker evaluations and feedback for each project. In voice annotation, where ambiguity is high and many exceptions occur, we share sheets detailing how to handle exceptions and edge cases with workers, and through individual communication, we share and educate on tacit knowledge that is difficult to formalize, thereby achieving improved and stabilized quality.

Feature03

Comprehensive Security System
Our office has obtained ISMS certification* and is equipped to handle work in secure rooms such as office security rooms. Therefore, we can ensure security even for projects involving highly confidential data such as personal information. Additionally, for clients who wish to avoid using crowdsourcing, we can also provide on-site support at the client's location.*ISMS certification: An evaluation system established by the Japan Information Processing Development Corporation (JIPDEC) (ISMS Conformity Assessment System)

Use Cases of Voice AnnotationField

Transcription & Speech Recognition
We listen to audio data and recorded videos to transcribe and edit text data.
Intent and Named Entity Extraction
Based on the text data extracted from the audio content, labeling is performed according to intent and named entities.

Annotation ServicesAchievements & ExamplesCase Study

AI Assistant User Request Understanding Improvement Project
Global IT Company

Required Tasks
  • Ensure that the AI assistant correctly understands the users' voice requests and can perform the desired actions.
  • Workers evaluate the AI's understanding by tagging each action taken by AI.
Customer's
Challenges
  • The customer wanted to build a team of 40 members within 2 months.
  • Working in a secure room was essential, due to the highly confidential nature of the project.
  • The task was highly difficult and relied on workers' insight and judgment, so they wanted to proceed only with skilled annotators. Training for annotators was essential before starting the actual work.
  • The cost needed to secure the resources was difficult for their own company.
Our
Solutions
  • First, we started the project in our existing secure room, and within 1.5 months, we moved the project to a newly established secure room where 40 people could work.
  • We established a team structure and training program based on the proficiency of the annotators. By actively sharing and updating our knowledge, we were able to improve and stabilize the quality.
Number of Tasks
About 450,000 items
Work Period
6 months
Main Takeaways
  • Human Science can provide secure rooms that meet your standards. We also respond promptly to the need for expansion.
  • We provide thorough security education to annotators. We manage projects in a way that meets high security standards in both resources and environment.
  • By sharing information and communicating closely among members, we support the proficiency of annotators. This enables cost reduction through shorter training periods and greater productivity.

Annotation Outsourcing Service Flow Process

  • 01

    Hearing

    Provide materials such as sample data and specifications.
  • 02

    Quotation

    We will provide a quote based on the sample data and specifications you provide.
    *If the details are not decided, we will set the prerequisites and provide a quote and delivery date
  • 03

    Sample Delivery

    Perform the initial delivery at the early stage of the project. Receive feedback and realign understanding again.
  • 04

    Data annotation

    Regular progress reports. Contact us promptly if there are any questions. Update work instructions and notify as needed.
  • 05

    Delivery

    Conduct review meetings upon request.

Audio AnnotationPricePrice

Audio Annotation
(Price Reference Example)

Correction and Checking of Transcribed Text
Work Content This task involves correcting text transcribed from conversations while listening to the conversational audio,
following standards and rules.
Workload / Delivery Date Conversation text: 100 hours (about 30 seconds per conversation) / approximately 1.5 months
Working Conditions and Others Domestic Remote Work
Price 600,000 yen and up

*The above is a reference example of pricing based on assumed work. Actual fees and delivery times may vary depending on the specific work specifications and conditions. Please contact us first.

For estimates, please make your request through the inquiry form.

Frequently Asked QuestionsFAQ

I am worried about whether we can get the right personnel to work on the project. +
At Human Science, we verify the content of the work before starting a project and assign personnel that fit the characteristics.
We achieve effective team formation based on the aptitude and past experience of our contracted workers, as well as the multifaceted personnel evaluation results conducted for each project.
Is it possible for you to use the same annotation tool that we have been using in-house?+
Yes. We will accommodate your needs. We are flexible in handling tools that have not been previously implemented by our company.
We can also support solutions using VPN. Please feel free to consult with us first.
Is it possible to consult with the project manager and communicate even after the actual work has started?
+
Yes. We will accommodate your request.
We offer meetings and feedback opportunities as needed. Use of Slack, Teams, and other platforms is also available.
Is it possible to do data annotation for natural language processing in foreign languages? +
Yes. It is possible. We will utilize the resources and experience we have gained through our translation and localization business to provide support.
As of now, we have experience creating training data for English and Taiwanese. Please contact us for more information.

Useful MaterialsDownloads

Annotation Services Industry-specific Use CasesIndustry

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