How to Find Key Audio Evidence from Large Recordings (AI Transcription)

June 8, 2025

How to Find Key Audio Evidence from Large Recordings (AI Transcription) | AI Transcription Service - Mr. Transcription

Audio recordings used as evidence in court play a crucial role in clarifying facts and corroborating testimonies.

I've been recording daily for court evidence!

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Many people can likely relate to this.

However, only a fraction of the data collected can actually be used as evidence.

Selecting usable audio evidence from a large volume of recordings requires significant:

  • Time
  • Effort
  • Mental stress

It's incredibly challenging.

This article will introduce methods you should know to "find the specific audio data you need from a large collection of recordings" in such situations.

Too Much Data: Can't Find the Important Parts

When there's too much audio data, it becomes difficult to identify which parts contain crucial information.

As a result, it takes a long time to locate the necessary sections, leading to inefficiency.

Listening Yourself Causes Mental Stress

When you're already overwhelmed with a court case, listening to your own recordings from that time can be unimaginably painful.

  • Hearing that person's voice
  • Recalling the atmosphere of that moment
  • Repeatedly replaying memories, causing emotional harm

Listening to recordings related to incidents or disputes yourself can indeed cause significant mental distress.

I've been through it, so I understand... It makes you want to give up on submitting evidence.

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Therefore, it's essential to extract information in an efficient and stress-free manner.

Transcribing Audio Data

Without listening to audio data, it's impossible to know "what content it contains."

However, if the content is roughly transcribed into text, you can infer from the text, "Oh, this is about that time!" and select the relevant audio data.

But transcribing it myself would be stressful, and if I ask a professional, it costs like 10,000 yen per hour...

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That's why we recommend using an AI-powered transcription service.

Transcribe Audio Data with AI!

When transcribing audio recordings for court evidence using an AI transcription service, there are both advantages and disadvantages.

Benefits of AI Transcription

  • Affordable Price
    AI transcription service Mojiokoshi-san offers a free version, and the paid version starts from approximately 3 yen per minute.
  • Fast Transcription Speed
    Transcription can be done in roughly the same amount of time as the audio recording.
    Example: 30-minute audio recording → Approximately 30 minutes for transcription.
  • Process large amounts of data at once
    Instead of transcribing data one by one, multiple data can be transcribed at once.
  • No need for others to listen to your recordings
    Since AI transcribes, no human will listen to the audio data.

Disadvantages of AI Transcription

  • Low transcription accuracy depending on the recording data
    Recording data with noise or low speaking volume will result in lower transcription accuracy.
  • Cannot achieve perfect transcription
    Since it's AI, not a human, it cannot respond flexibly, so perfect transcription is not possible.
  • Cannot be used directly for court transcription
    Accuracy of the transcribed content is required when submitting it as evidence to court.
    Since content cannot be missing, AI transcription, which cannot achieve perfect transcription, is unsuitable.
    You may need to transcribe it yourself or request a professional service as needed.

AI transcription allows you to quickly convert recorded data into text and easily select the necessary information.

Furthermore, transcribed data is easy to search and sort, so you can quickly find the necessary parts by "keyword searching."

Recorded Data is Crucial Evidence in Court

In court, recorded data is extremely important as evidence.

However, you need to select which data can actually be used as evidence yourself.

Going through a trial is already stressful enough; further burdening yourself is not in your best interest.

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AI has developed so much; let's utilize it.
You've already been hurt enough; there's no need for you to be hurt further.

By utilizing AI transcription, you can efficiently select recorded data.

It can also reduce your mental burden.

Knowing about AI transcription as one method will help you smoothly submit evidence in court.

May you achieve a better outcome.

■ AI transcription service "Mr. Transscription"

"Mr. Transcription" is an online transcription tool that can be used from zero initial cost and 1,000 yen per month (* free version available).

  • Supports more than 20 file formats such as audio, video, and images
  • Can be used from both PC and smartphone
  • Supports technical terms such as medical care, IT, and long-term care
  • Supports creation of subtitle files and speaker separation
  • Supports transcription in approximately 100 languages ​​including English, Chinese, Japanese, Korean, German, French, Italian, etc.

To use it, just upload the audio file from the site. Transcription text is available in seconds to tens of minutes.
You can use it for free if you transcribe it for up to 10 minutes, so please try it once.

It is "Mr. Transcription" who can easily transcribe from audio, video, and images. Transcription allows you to transcribe for up to 10 minutes for free. You can copy, download, search, delete, etc. the transcribed text. You can also create subtitle files, which is ideal for transcription of interview videos.
HP: mojiokoshi3.com
Email: mojiokoshi3.com@gmail.com
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