Recording Tools and OCR text Extraction tools: How to improve learning and work efficiency?

 

In academic research and daily work, we often face two major challenges: firstly, it is difficult to record fast oral information, and secondly, it is impossible to directly copy and edit printed materials or scan text in documents. Faced with these problems, recording tools and OCR text extraction tools have become indispensable assistants. Whether it's recording lectures in class or processing PDF documents, these tools can greatly improve our work efficiency and make you more adept in the era of information explosion.

What should novice international students do if they can't understand in class? Combine efficient preview and classroom notes with OCR tools! In this article, we have analyzed the reasons why students who are new to studying abroad cannot understand in class, and summarized some easy learning tips. In addition, we have also recommended what to do in class and what tools to use. However, considering that there is no specific explanation for the use of recording tools, we will now introduce them to you in conjunction with OCR text extraction tools.

Outline

• Classroom recording: Record the professor's explanation for easy review after class
  • Collection of Introduction to Recording Tools
• OCR Text Extraction Tool: Bring Text to Life
  • What is OCR technology and its working principle
  • Usage scenario
    • PDF document processing: Convert non editable PDFs into editable text.
    • Scan file editing: Extract text from scanned images for easy editing and archiving.
    • Digitalization of Books: Converting the content of paper books into electronic documents.
• Combined use: dual guarantee for improving efficiency
  • Step 1: Recording and Organizing
  • Step 2: OCR Processing and Editing
  • Step 3: Comprehensive Utilization
• Q&A

Classroom recording: Record the professor's explanation for easy review after class

In class, the professor's explanation speed is often very fast, and the notes often cannot keep up. At this point, using recording tools can effectively capture every sentence and facilitate post class review. So let's take a look at some recording tools together. When introducing them, I will also point out some areas that I think are not very useful for everyone's reference.

It should be noted that in foreign universities, if students want to use recording equipment in class, they must seek the consent of the teaching teacher in advance to avoid unnecessary trouble.

Collection of Introduction to Recording Tools

Otter

This recording tool is only suitable for situations where English is used, and is relatively limited in language. In addition, it does not have a translation function, but it can display the content heard in real time. The recognition speed is very fast, and the recognition rate is over 80%. Some difficult words may not be recognized. In addition, it also has AI functionality that can automatically generate note outlines, with a free credit limit of 300 minutes per month for 118 yuan per month.

Lectmate

Lectmate is software produced by NetEase Youdao, which supports real-time transcription and translation of 70 languages with an accuracy of around 75%, but may encounter difficulties in understanding. Free 180 minutes per month, 350 yuan per year.

Translation Officer for Instant Children

Yisecwa Translator is currently a relatively niche real-time translation tool, with recognition comparable to Dear Translator and similar functions. If the usage is relatively high, you can take a look at his monthly card, which is relatively more affordable.

GoogleDoc

GoogleDoc is a regular recorder with the advantage of being free, and friends in need can also learn about it.

Dear translator

My dear translator, this tool is full of functions. It supports 73 languages and distinguishes different accents of a single language. You can choose China (Cantonese) or China (Taiwanese). In addition, it supports real-time translation, camera shooting translation, phone translation, etc. (if you speak Chinese, the machine will translate it into English and reply to the other party, which means the other party hears AI reading English, but you are speaking Chinese).

This tool has a comprehensive range of functions, and the corresponding price is also relatively expensive. I usually use the duration package, which costs around 208 yuan for 10 hours, or I can choose the monthly package for 20 hours, which costs around 350 yuan. Dear translator, it can be said that this type of product is currently the best on the market. Friends who are relatively wealthy can also choose their own wearable devices, such as glasses, for real-time face-to-face translation.

IFlytek heard

Compared to the several paid products mentioned above, iFlytek is much cheaper in price. Although it also provides real-time translation and transcription of text, its accuracy is much lower. If there is an accessory (microphone), the user experience is still good, which is convenient for conference recording and transcription. However, it is not very effective for simultaneous interpretation directly using a mobile phone. Its ability to reduce noise is poor, and when the environment is noisy, nothing can be heard, resulting in stuttering.

Notability

Notability is an app that combines note taking and recording. Its biggest advantage is that it allows you to take notes while recording during class, and after class, you can directly click on the note location, and the recording will jump directly to the time when the note was taken. Simultaneous recording can be divided, segmented, and named. In addition, Notability has the function of recording text transcription, which is currently unavailable in Chinese Mainland and Hong Kong.

Good notes

Good notes are similar to Notability in that it now has a recording function. However, unlike Notability, which is as intelligent, recording can only be played from scratch and requires manual content retrieval, which can be quite cumbersome.

Notta

Nota can transcribe in real-time with an accuracy similar to Lectmate, and is free for 120 minutes per month. At present, there is only an annual membership system, which costs 1100 yuan per year. Faculty and students can apply for half price, which is quite cost-effective.

EasyNoteAI

EasyNoteAI supports multiple languages, and the operation process and functions are as follows:

1.Multiple input methods:

Notes can be generated through recording or uploading audio, YouTube videos or PDFs, text documents, and other methods. Suitable for various learning and work scenarios, especially classroom recording and group discussions.

2.Recording settings:

Before recording, users need to select the course name, recording language, and note taking language. This makes the generated notes more in line with user needs, such as courses taught in English, but when generating Chinese notes, they can be set to the corresponding language.

3.Real time recording and uploading audio:

Users can directly record audio, with recording time ranging from 1 minute to 3 hours. After the recording is completed, users can choose to generate notes. If the network condition is poor, users can also choose to save the recording file locally and upload it to generate notes when the network is good.

4.Note generation and extension functions:

The system will automatically generate detailed course notes with clear and detailed content structure, suitable for reviewing and recording knowledge points. The generated notes can also be converted into "Transcript", "Chatbot", "Flashcards", and "Quiz" for further learning and testing.

5.Download and Share:

The generated notes can be downloaded in PDF format for easy saving and sharing.

What is OCR technology and its working principle?

There are so many recording tools introduced, each with its own advantages and disadvantages. You can choose according to your own needs. Below, I will focus on introducing OCR tools to everyone. First, let's understand what OCR technology is? This is a technology that can convert text in images into editable text formats. OCR technology scans text in documents or images and recognizes and converts it, allowing these texts to be processed by computers. So the text content that was originally impossible to copy or paste can be processed arbitrarily by us.

OCR Text Extraction Tool: Bring Text to Life

So what are some useful OCR text extraction tools? The tool I am currently using is PDF to PDF. Why PDF to PDF? In fact, it converts scanned PDF documents, which look like pictures, into PDF text files.

Usage scenario

The uses of PDF to PDF are also very extensive, mainly including the following three.

PDF document processing: Convert non editable PDFs into editable text.

PDF document processing is the most direct and does not require any additional operations. Simply upload the scanned PDF to the PDFtoPDF website. After waiting for a few seconds for successful upload, you can click on the small eye to preview. If the effect is satisfactory, click the start conversion button to pay for the download. The entire operation process is very simple. If you encounter any problems, you can directly download it through email pdftopdf@leqi.ai Provide feedback.

There are two pricing modes, one with a conversion accuracy of 99% and the other with an accuracy of up to 99.5%, which can be chosen according to one's own needs. The price is slightly different, and the higher the accuracy requirement, the higher the corresponding price will be. You can click the 'Fixed price' button on the navigation bar above to view the specific prices.

Note: During the upload or download process, the speed may vary depending on the size of the file we upload. The smaller the file, the faster the speed. If the file is larger, please be patient and wait~

Scan file editing: Extract text from scanned images for easy editing and archiving.

For scanning files, we can also use the PDF to PDF tool, but we need to first convert the scanned images into PDF scanned format, and then upload them to the official website of PDF to PDF. The subsequent steps can be directly referred to above.

Digitalization of Books: Converting the content of paper books into electronic documents.

The same method is used to convert the content of paper books into electronic documents. If it is the entire book, it is recommended to scan each page of the content first, store it in PDF scanned format, and then use the PDF to PDF tool for conversion. There is another way, if you need to digitize some of the content in the book, you can directly take pictures, convert them into PDF scanned format, and finally upload them to the PDFtoPDF official website.

Combined use: dual guarantee for improving efficiency

Next, let's take a look at how to combine recording tools with OCR tools to improve learning efficiency. The following content will be written relatively concisely, and most of the content has been carefully introduced above. Of course, if you have any questions, please feel free to leave a message and let me know.

Step 1: Recording and Organizing

Use recording tools in the classroom for recording, organize the recording in the later stage, and extract key information.

Step 2: OCR Processing and Editing

Convert scanned documents or images into editable text using OCR tools, and edit and organize the converted text content.

Step 3: Comprehensive Utilization

Combine the recorded content with OCR converted text to form a complete note or report.

Friends in need can choose the appropriate tool based on their own needs and the advantages and disadvantages of the product. Give it a try now!

Q&A

Q: Why do we need to use OCR tools?

A: OCR tools can convert text into images or scanned documents into editable text formats, facilitating further processing and archiving.

Q: How to choose the appropriate recording tool?

A: Choose according to your specific needs. If you only need a simple recording function, you can choose the applications that come with your smartphone; If you need more professional recording effects, you can choose professional recording equipment.

Q: How to improve the accuracy of OCR recognition?

A: Ensure that the scanned documents are clear and unobstructed, and select high-quality OCR tools that support multilingual recognition.

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What should novice international students do if they can't understand in class? Combine efficient preview and classroom notes with OCR tools!