Profile photo for Sumiko Koshiba

Sumiko Koshiba

東京都, Tokyo, JP 8:23 PM (JST) Local Time

Not Yet Rated




About Sumiko Koshiba

I am a professional Japanese voice-over Artist.

Sumiko's voice captures the audience's attention and delivers a performance that exceeds expectations.

If you need an authentic, comfortable, warm, refined, and clear Japanese voice, Sumiko's voice is the one you need.
Sumiko is a Japanese voice actor with the skills to bring your images to life!

I have worked for seven years as an anchor and reporter for a Japanese television station.
I now has a lot of experience as a professional voice over artist.

Sumiko's voice is gentle, calm, luxurious, clear, reliable, genuine, refined, informative, confident, sincere, and friendly.

The tagline for Sumiko's voice is Silk Voice!
The beauty of the Japanese language is offered.

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Vocal Characteristics



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Voice Ages

Child (5-12), Teen (13-17), Young Adult (18-35), Middle Aged (35-54), Senior (55+)



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Voice Over Skills

Animation Movie Trailers Documentaries Audiobooks Elearning Radio Ad Telephone Videogames Podcasting Television Ad Video Narration Online Ad Voice Assistant

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Turnaround Time


Live Directed Sessions

Source-Connect, Video Conferencing (Zoom, Skype)



Computer & Software

Windows10, Wave Pad ,RX 7, Adobe Premia Pro, Duo-CAPTEURE EX UA-22

Special Equipment


Service Overview

Voice Over

Sumiko's voice is gentle, bright and gentle.
Reliable and specializes in corporate video and television commercials.
It also features a sexy, sophisticated and gorgeous voice and a relaxed, natural voice. Sumiko is experienced and has a career of over 20 years.
Sumiko will contribute to your project.
I look forward to working with you!

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More Information

How do I work with Sumiko Koshiba?

You can start working with Sumiko Koshiba in three simple steps:

  1. Invite Sumiko to respond to your new or existing project.
  2. Review Sumiko's proposal, portfolio, and quote after they've replied to your invitation.
  3. Hire Sumiko Koshiba.

You can learn about how Voices works here.

How do I pay Sumiko Koshiba?

Payment to Sumiko Koshiba is managed through our SurePay™ payment protection service in a few simple steps:

  1. Pay securely by Visa, Mastercard, or PayPal directly through Voices.
  2. Voices holds your funds until you're satisfied with Sumiko's work.
  3. When the work is done, download your files.