Best AI Transcription Methods: PC & Mobile (Free Options)
June 8, 2025


Transcribing audio files from meetings or interviews into text is a very demanding task.
While transcription used to require manual typing, now, with convenient tools like AI transcription services, anyone can do it easily and quickly.
- What kind of services and apps use AI speech recognition technology?
- What's the difference between "kakiokoshi" and "mojiokoshi" (transcription terms)?
- What are the recommended services?
This article will explain all this information for you, who might be struggling with audio transcription.
What is Audio File Transcription?
First, let's explain the key points of what transcribing a recorded audio file entails.
What is Transcription?
Transcription is the process of converting audio files recorded on a smartphone or IC recorder into text that can be read visually.
Audio files, as they are, cannot be used for purposes such as:
- Storing as documents
- Searching content
- Compiling as materials
By transcribing them into written form, they become much more useful in various situations like work, research, and study.
Difference Between "Kakiokoshi" and "Mojiokoshi"
When you research transcription, you'll likely often come across the term "mojiokoshi".
"Mojiokoshi" refers to the act of converting recorded audio into a written format.
It is the same process as "kakiokoshi".
You can consider "kakiokoshi" and "mojiokoshi" to mean the same thing.
Reasons for Transcribing
The reason for transcribing audio files is that it's difficult to record content in real-time as text during an interview or meeting.
If you try to write down the content while conducting an interview or meeting, you might not be able to keep up with the transcription or you might lose focus on the interview or meeting itself.
In contrast, by simply recording the audio during the interview or meeting and then transcribing the content later from the recorded file, you can create a smoother and more accurate record.
However, if you're typing manually, you'll need to pause and rewind the audio while transcribing, which can be very time-consuming.
But don't worry.
Unlike before, it's now possible to easily convert audio to text without much effort or time, by using transcription tools or services.
Transcription Methods
There are broadly three methods for transcription:
- Using AI transcription services
- Typing manually
- Hiring a professional transcriber
Let's introduce the characteristics of each transcription method in order.
1. Using AI Transcription Services
The most recommended method right now is to transcribe text using AI transcription services.
AI transcription services leverage cutting-edge AI speech recognition technology to automatically convert audio into text.
This service uses cutting-edge AI speech recognition technology to convert audio files into text files.
Just as iPhone's Siri and Android's Google Assistant are widely used, speech recognition is a field where AI particularly excels.
AI transcription services utilize AI specifically tuned for transcribing text, enabling highly accurate transcription that far surpasses smartphone voice recognition capabilities.
It takes only about 10 minutes.
Simply upload your audio file, and the process is completed quickly.
If you want to transcribe easily, using an AI transcription service is highly recommended.
【Free】For Transcription, 'Mojiokoshi-san' is Recommended
For transcribing audio files, 'Mojiokoshi-san' comes highly recommended.
Mojiokoshi-san is a Japanese-developed AI transcription service that utilizes the latest AI technology.
It offers highly accurate and high-quality transcription, capable of transcribing even long files in just 10 minutes.
Advanced features are also available, such as transcription of foreign languages other than Japanese (supporting 100 languages in total) and speaker diarization (transcribing by individual speaker).
What's more, you can transcribe up to 1 minute for free without needing to register or log in.
If you're looking for a way to transcribe audio, why not try 'Mojiokoshi-san' for free first?
2. Manual Typing
Before the advent of AI transcription services, manually typing out transcriptions was the most common method.
The method is very simple: listen to the audio file and type it into a text editor like Notepad.
The downside is that it's labor-intensive.
Audio transcription (or text conversion) takes a very long time.
For example, a 1-hour audio file can easily take 3-4 hours, even if you work smoothly.
You might feel that for a short file, say around 1 minute, it's faster to transcribe it yourself. However, just as AI transcription services like 'Mojiokoshi-san' allow you to use up to 1 minute of audio without login or registration, it's smoother to use an AI transcription service even for short files.
If you do need to type manually, it's recommended to use a dedicated transcription player app that allows easy playback and pause control.
3. Hiring a Professional Transcriber
Hiring a professional transcriber or a specialized transcription agency is another option.
Before AI transcription services became available, if you found it difficult to do the work yourself, outsourcing transcription was the only choice.
The advantage of professional work is that the content is accurate and error-free.
However, because you're hiring a specialist, the cost is high, typically at least 10,000 yen per hour, even for basic services.
Furthermore, if high-level skills are required, such as for medical or specialized terminology, the fees usually increase.
Additionally, delivery times are often at least 3 business days, and requesting expedited service will significantly increase the cost.
Considering both cost and time, AI transcription services are generally more recommended.
Regarding content quality, the performance of AI speech recognition has dramatically improved, allowing for transcription quality that is comparable to or even better than human transcribers.
AI Transcription Services are Recommended for Transcription
As demonstrated, AI transcription services are highly recommended for transcribing audio quickly, easily, and with high accuracy.
Why not try easy and convenient transcription with a cutting-edge AI transcription service like 'Mojiokoshi-san'?
Latest
Top 5 Transcription Services & AI Transcription Tools
So, what AI transcription services are available for your transcription needs?
Here are some transcription tools that can be useful for your work.
1. Mojiokoshi-san
'Mojiokoshi-san' is an AI transcription service developed in Japan.
Its biggest feature is its high accuracy and ability to transcribe (convert speech to text) in a short amount of time.
By using the latest AI for speech recognition, it can transcribe a wide range of audio files, including meetings and interviews, with high quality.
What's more, it uses two different types of AI for even more convenient transcription!
Each has distinct features:
- PerfectVoice: Can transcribe long files in about 10 minutes, supports 100 languages.
- AmiVoice: Speaker diarization (transcribes by each speaker), transcribes in approximately the same time as the audio file length.
These features allow for quick transcription of languages other than Japanese, and creation of meeting minutes.
Furthermore, 'Mojiokoshi-san' can be used for free.
You can transcribe audio files up to 1 minute without registration or login, making it convenient when you need to transcribe audio quickly.
If you're unsure about transcribing audio files, why not try 'Mojiokoshi-san' first?
2. User Local Voice Meeting Minutes System
The User Local Voice Meeting Minutes System is an AI transcription service specialized in real-time meeting minute transcription.
As the name suggests, its primary function is creating meeting minutes, and it only supports real-time transcription without saving content.
While its features are limited as it doesn't support post-recording transcription, this AI transcription service is recommended for those who want a simple transcription tool.
Voice Meeting Minutes System (Free) - User Local
3. Otter
Otter is an AI transcription service designed for English transcription.
Because it specializes solely in English, it can perform transcriptions with very high accuracy.
In today's globalized world, English transactions are often required in business.
Why not understand meeting content with an AI transcription service and facilitate smoother business operations?
*AI transcription services that support multiple languages, like 'Mojiokoshi-san', are also recommended.
4. ZMEETING
ZMEETING is an AI transcription service launched by a venture company originating from the National Institute of Advanced Industrial Science and Technology (AIST).
Its speech recognition AI can transcribe meeting content in real-time.
It boasts a rich set of features, including integration with ZOOM, multi-language real-time transcription, and speaker identification for up to 15 people.
It's recommended for those who need to transcribe meetings.
5. RIMO Voice
RIMO Voice is an AI transcription service that supports Japanese transcription.
While it only supports Japanese, it offers a full range of post-transcription features, such as AI-powered summarization and data sharing.
The individual plan is charged by the hour, and the corporate plan starts from 30,000 yen per month, which is a relatively high price range. Therefore, it might be recommended to consider this service if you need to perform a large volume of transcriptions.
Want to Transcribe Conveniently with the Latest AI?
As you can see, using an AI transcription service makes it possible to conveniently transcribe audio files, including meetings and interviews.
Transcription work, which previously required a long time, can now be done easily and quickly by anyone using an AI transcription service.
If you're unsure about the best transcription method, why not try an AI transcription service like "Mojimoji-san" first?
■ 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.
Email: mojiokoshi3.com@gmail.com
Transcription for audio / video / image transcription. It is a transcription service that anyone can use for free without installation.
- What is Mr. Transcription?
- Transcript images, sounds, and videos with Mr. Transcription
- Free registration
- Rate plan
- manual