What is the experience of online teaching with real-time subtitle translation? Iflytek Intelligent Omnidirectional Microphone M2

With the change of the present environment, many meetings and teaching are conducted online. Especially for international students, although they are studying in foreign universities, classes are conducted in the form of online teaching, which is also a status quo that is difficult to change in the short term.

The most common problem in the process of switching from offline to online is radio reception, such as microphone howling, unclear pickup, far unstable distance and so on, which leads to a series of subsequent problems. The most embarrassing scene is that the online professor asked you to repeat the previous answer many times because he was vague.

How to solve these problems? The simplest way is to improve the pickup condition of the notebook through an external microphone, but this is only to improve the pickup problem, and it still takes a lot of time to sort out the notes after class. I have also tried to use screen recording or recording software to save the contents of the class, but it has not improved the efficiency of sorting out notes. Video and recording do not support retrieval, and dragging back and forth is inefficient.

So how to improve the efficiency of class or meeting? Next, I would like to share with you a commercial product that I just started recently-Iflytek intelligent omnidirectional microphone M2. Although the name has the word microphone, it is a product of Iflytek, and speech recognition and translation are its strong points, which leads to the microphone M2 not only having simple pickup function, but also supporting automatic recording and transliteration of voice content.

Although Iflytek Smart Microphone M2 supports plug-and-play without installing any drivers, it still needs to be matched with "Iflytek Hearing Client" to enjoy the transcription service.

After opening the "Iflytek Hear" client, we can see that the software integrates remote cloud conference, cloud hosting, voice-to-text and translation functions, and the overall UI interface is relatively simple.

Iflytek smart microphone M2 comes with the right of free transcription, minority language identification and dialect identification, which means that there is no need to pay for the transcription operation on "Iflytek Listening Client".

As a company deeply engaged in intelligent voice technology for many years, Iflytek not only allows M2 to support transliteration in eight national languages, such as Chinese, English, Japanese, Korean, Russian, Spanish and Vietnamese, but also supports 12 local dialects, such as Cantonese, Sichuan dialect, Chongqing dialect, Yunnan dialect and Henan dialect, as well as Uygur and Tibetan. The accuracy of Chinese transliteration is as high as 98%. Even if Mandarin is not standard, there is no need to worry about language problems.

For example, now choose a real person to read as a pick-up template. The original text is as follows: quicksand, poisonous arrows, poisonous insects, dangerous pits and so on. In the Ming Dynasty, influenced by the strange skills and tricks of the West, some tombs even traded the western eight treasures for hearts. Especially the tombs of the Qing dynasty, it is a masterpiece of anti-theft technology for thousands of years. Sun Dianying, the great warlord, wanted to dig Dongling, and used the treasure inside as a salary, using a large number of troops to dig and blow it up. It took five or six days to succeed, and its firmness can be imagined.

After copying, compare with the original text. There is no problem with most of the content, and the places that can't be transliterated perfectly mainly appear in homophonic and tonal differences. For example, "Western strange tricks" have become "miracle of sunset", "curtain" and "grave". These problems are understandable and homophonic.

Change the voice of another announcer. The original quote is as follows: smelling the wine, closing your eyes and sniffling, your face is intoxicated, it's just fucking fragrant. As soon as he made a determined effort, he went to find the only empty stool, sat down, gritted his teeth and shouted with all his last strength, "Xiao Er, serve the wine." The drinkers who go out of the city or rest in the city don't like this poorly dressed servant and deliberately sit far away. The bartender, who was busy with his business, wanted to echo his voice and was so happy, but when he saw the costume of the servant, his face fell at once. How can a businessman who comes out to do business without vision?

The transliteration of this paragraph is very interesting. Some bad contents are directly abbreviated as "tnd", but most of the contents are ok, that is, punctuation marks cannot be distinguished, which is consistent with the official recognition rate of 98%. Judging from the results of transcription, the workload of manual proofreading is very small, and it is convenient to sort out documents later, so the meeting record work can become very efficient from now on.

It is worth mentioning that the software provides matching and association operations, which can automatically jump to paragraphs after inputting abstract text, which is quite useful when retrieving content information, but unfortunately this function only supports Chinese at present.

After copying, you can download and save it as a Word document or txt, and automatically package it into a ZIP compressed package. You can also generate a QR code or an online link, so that we can share the content easily.

The subtitle group function derived from "Iflytek Hearing Client" real-time translation and Iflytek smart microphone M2 is a very distinctive "learning" mode. The opening way is in the minutes of the meeting. Click on the "subtitle mode" item more.

When "subtitle mode" is turned on, the real-time transcribed and translated content will be displayed in the form of title bar on the screen, which is somewhat similar to the song show of QQ music or Netease cloud music.

The font size, color and transparency of subtitles can be adjusted, and the position can also be dragged at will. The displayed content can be switched among three results: transcription, translation and transcription+translation.

If you want to ask whether it can replace the efficacy of subtitle groups, there is still a gap. The main reason is that the transliteration is delayed, and the translation results will not be presented in perfect lines. But if it is used to watch raw meat dramas, press conferences, courses and the like, it is enough, and it also has the effect of exercising reading.

"Subtitle mode" can be compatible with all kinds of audio and video, online chat, conference software and so on. Especially when it is applied to online teaching, a subtitle is hung at the bottom of the screen as a translation assistant or an inscription machine, so there is no need to worry about what the professor says in class. After class, you can also play back the professor's recording and save notes for reviewing knowledge points after class.

In addition, although the power of Iflytek smart microphone M2 is 3W, the external effect of the speaker is quite loud. It is rare that there is no broken sound even at the maximum volume.

Iflytek Intelligent Omni-directional Microphone M2 (hereinafter referred to as Iflytek Intelligent Microphone M2) is a business gift box with a relatively large outer box.

After opening the box, we can see that there are not many items inside, only the main body, manual, storage bag and data cable of the smart microphone M2. Among them, the data line is a two-in-one design of C-to-C and USB-A. Removing the USB-A set is a double C interface, which can be regarded as new and old equipment.

The storage bag also makes it more convenient for me to go out and carry. Even if you throw it into your backpack at will, you don't have to worry about all kinds of bumps. It's very sweet.

Iflytek smart microphone M2 is designed as a cube, integrated with stamped metal plate. The overall size is 120mm x 120mm, and the thickness is about 29mm, which gives people a light feeling and is slightly commercial.

In fact, the weight is really light after you start, that is, the weight of canned coke in your hand or backpack is very light.

The whole surface is covered by a large round hole, and only one function button is left at the edge. According to official data, Iflytek smart microphone M2 is equipped with hi-fi speakers to ensure that sound can be clearly transmitted to every corner of the conference room or classroom.

The poor sound quality of mobile phones, notebooks, tablets and other equipment is mainly related to the small size of speakers. Although the Iflytek smart microphone M2 can't replace the traditional speakers, it is enough to be the conference "assistant" of the above equipment.

The four touch keys on the top edge have no text identification, and from left to right are volume down, call key, mute key and volume up. There is no problem with the operation logic, but the advantage is that the function is simple and it belongs to the kind that can be used at a glance.

In addition, there is a status indicator bar at the edge of the key, and we can grasp the current working status through the different colors of the light bar. For example, Iflytek smart microphone M2 always lights blue when connected to Bluetooth, light blue when connected to wired USB, and always lights red when the microphone is turned off ... The whole is more intuitive.

It is worth mentioning that Iflytek smart microphone M2 supports wireless Bluetooth and driver-free wired connection, plug and play, and the connection process is quite convenient. The built-in 2500mAh battery can maintain 15 hours of working time for Iflytek smart microphone M2 in wireless state, even if each meeting lasts for 2 hours, it can be recharged once a week.

In order to ensure the clarity and range of pickup, Iflytek Smart Microphone M2 is equipped with a microphone at each of the four corners of the fuselage, forming a four-array microphone configuration, and its pickup radius can reach 5 meters. This is a full coverage of ordinary conference rooms or classrooms, and it is a 360-degree pickup without dead ends, which can ensure that speeches and voices in every corner can be clearly picked up and recorded without worrying about missing the details of the conversation.

Combined with the built-in professional digital signal processing (DSP) chip and intelligent noise reduction algorithm, the call quality is effectively improved through voice gain, noise suppression, echo cancellation and other technologies. In my actual use, there are no problems such as howling, loud ambient sound and ambiguity.

The rear side of the fuselage is provided with a power key, a Bluetooth key, a status indicator light and a Type-C interface. The interface carries the functions of data transmission and charging, and supports recording while charging.

The bottom is covered with a large area of silicone foot pads, which can provide good friction and make the microphone more stable when picked up. After all, the working environment is still changeable, which may be a wooden desktop or a smooth glass surface. When placed unsteadily, it will bring many uncertain factors to the pickup process, resulting in poor recording quality.

As a pickup product, Iflytek smart microphone M2 has a miraculous effect in meeting record. It can not only record the whole meeting content, but also output characters in segments, which makes the follow-up meeting content as a whole very efficient. Judging from the actual pickup effect, the sound can be recorded normally and completely within 5 meters, and there are no problems such as vague sound and poor recording quality.

The application mode of Iflytek smart microphone M2 is not limited to conference scenes, but also very practical for our training institutions or users with foreign-related jobs. For example, in the online teaching process, the content of the professor's class is recorded, and the after-class notes are efficiently completed through the transcription function. The most important thing is that you can jump to the audio section through the copied content. If you don't understand it, you can review it after class, which is also a small stove in disguise.

Of course, Iflytek smart microphone M2 also has some unsatisfactory places, for example, it can only be used as a speaker in the absence of network environment. Simply put, Iflytek Smart Microphone M2 is a microphone product, focusing on high-quality pickup, long-distance radio reception, free transcription at the client, efficient conference recording and intelligent subtitle mode. I'm Nicholas Lalala.