Many people may be troubled by missing or inaccurate audio file tags. If you do it yourself, you have to find the album information first and then add it manually one by one. This is not only time-consuming and laborious, but also not high-tech enough. . If you encounter a single audio file and the song is less popular, it is very likely that the source will not be found. At this time we need taggers. Now there are many applications that can serve as taggers. I briefly summarized the taggers on the Windows platform. Audio Tag's online application of this website is very simple. You can upload audio files to their server through the web page, and then they will help you find matching content based on the content of their database in the background. The disadvantage is that it can only be used to query a single audio, and it also takes time to upload. The database size is average, so it is no problem to find the tags of popular songs, but it will fail if it is slightly less popular. Tunatic (Windows/MAC) Tunatic will silently detect the sound coming from your system, and then query their servers based on the characteristics. It can only be used for querying a single audio. Because it is a locally running software and uses feature query, it saves the time of uploading the entire audio. Similarly, the database is of average size and is suitable for finding popular songs, but it is easy to fail to find unpopular songs. freedbfreedb is the name of a database. More people may be familiar with this, because many foobar2000 packaged versions come with the freedb plug-in. Generally speaking, it is most convenient to use in foobar2000. To use it, select the file and right-click, select Tag - Get tag from freedb, and it will query the server for information about the song you selected. The retrieval speed of freedb is very fast and can usually be completed within ten seconds. freedb is definitely not suitable for single audio query. It is full of errors and omissions and cannot be used. However, the effect of querying album information is indeed quite good. If you select the tracks of an album in batches and then query, the success rate of finding is not low. After querying the information, you can also write it directly to the file. And their database is relatively large. In addition to popular music, you can also find many animation and game albums. Gracenote Gracenote is a brand, not a software name. It does not produce its own specialized software, but its plug-ins appear in some popular players. They are Winamp, iTunes, Quintessential Media Player, Media Go, etc. Unfortunately, we are currently unable to use Gracenote's services in foobar2000. I recommend Quintessential Media Player here because this player has good overall functions and is not as bulky as Winamp. iTunes bundles, functions and extensions are also better than many no-name players. In terms of specific use, we can adjust the QMP interface to full mode, and then put the file into its media library. If you do not do anything after importing the audio file, it will automatically start analyzing your file. After the analysis is completed, the results are displayed. Of course, you can also do it manually: select one or more files, right-click, and recognize the entire album or each audio independently. After selecting, QMP will pop up a window and you can see the recognition progress of all audio files. After the recognition is completed, the new Tag information will overwrite the old one in the media library. If you want to save the new Tag information to a file, you should select that file, then select Edit tags and File names, and select From Media in the pop-up window. Library, and finally click Write Tags to write the Tag information to the file. Be careful not to let the audio file be occupied by the program.

Gracenote has a lot of commercial cooperation with other companies, so its database is very large. You can even find many pirated specials and copycat specials that you have never heard of in its database. Gracenote's ability to identify a single file is No. 1, and it is also unambiguous in identifying the entire album. It is highly recommended. But it's not a panacea, and you have to make your own judgment when necessary. There is also a Gracenote plug-in in Winamp. You can right-click the file in the media library and send to → Auto-Tag the file name. However, it seems that it cannot recognize multiple files as albums, or I don't know how to operate it yet. So I recommend QMP more. MusicBrainz Picard This is another more revolutionary Tagger. It is a professional automatic tag query and editing software produced by the MusicBrainz website. You may think its interface is weird when you first use it, but once you get started, it will feel very reasonable and easy to use. It supports dragging and dropping files, so I chose to close the tree directory on the left. Then the large window on the left is the local file window, and the right is the tag information window on the server. If you need to improve the information of an album, you can import those files in batches, then click cluster, and you will find that all the files have been classified into a folder. Then click lookup, and the album will be found instantly. You just need to Click save to write all the information to the file. It works by finding the most similar entries on the server through album names and other information, so the file you import needs to have a certain degree of information completeness. If you need to find information about a single audio, you can select all the files and click scan after importing the file. It will slowly scan your files and list the most matching files on the right based on the similarity of the information. You can choose Save the situation. If the batch query fails, you can also use one-by-one query. Some files may be weird. If neither of these two methods works, you can go to their website to query based on the known information. You can click the query button below, or you can search directly on their website and you will find what you want. After entering the information, click the tagger button on the upper right side of the album on the web page, and all the track information will automatically appear in the right window of the software. You can easily match your files. Isn’t it a bit too cool? In addition, MusicBrainz Picard can also recognize CDs in your optical drive. In short, the functions of MusicBrainz Picard are generally very good, very powerful, and very convenient to use. It’s just that its database is not as large as Gracenote, but its database can be optimized according to the user’s own wishes (@scavin: Isn’t this Web2.0?), and it has many enthusiastic users to help supplement and correct each album information , each artist information, main information and supplementary information for each track, so it exceeds Gracenote in terms of formality of information. After registering on their website, you can edit entries. The people on them have a very rigorous attitude towards doing things. If you are interested, you can also participate.