When we talk about immersion, we usually divide it into active and passive. Active immersion requires full attention to the content and can be practiced through reading and watching content in the target language. Passive immersion means listening to the language while in idle activities. When listening passively you're not fully focused on the content, instead you're doing something else while having the speech in your target language play in the background.
We do passive immersion during times in a day when we can't actively engage with the language, such as when cooking, cleaning or commuting. Although your attention is divided during passive immersion, because you're left with no other choice, it is still better compared to no immersion at all.
As noted in the introduction article, there are countless opportunities to do passive listening throughout the day. Make passive listening a habit. Every moment of your life has to be spent interacting with Japanese.
Passive listening is one of the key components of the AJATT method, so it is important to make it as convenient as possible. If preparing immersion content is tedious, you are not going to do it.
In the beginning passive immersion doesn't contribute much to comprehension gains, instead it helps you start distinguishing sounds and phonemes of your target language. Focus your attention on hearing the sounds. Maybe at first you won't even be able to hear where one word ends and another one starts, but as you progress expect passive listening to boost your phonetic awareness and eventually start contributing to your comprehension. Passive immersion doesn't do much without active immersion. You shouldn't neglect either of them.
Passive immersion can lead to very little or no language gains if done wrong. Stick to the following whenever you engage in passive immersion.
- Re-listen. Focus on listening passively to the content you've already engaged with actively and comprehended via dictionary lookups, attention to scenery and other means of making input more comprehensible. Re-listening creates repetition, and repetition is good for the brain. If you listen to something you haven't previously watched and comprehended, it is essentially going to be white noise, and it won't help you much.
- Rotate immersion content. Repetition becomes boring if done too many times, and boredom impedes learning. It's important to rotate immersion, in other words regularly add new content and remove old content from your playlist.
In this article you'll find out how to automatically extract audio from what you've watched and how to rotate immersion content.
The best source of passive immersion is audio from TV shows you've already watched. Another option is to listen to an audiobook of a novel you've previously read. These two options help the most because you already know the story.
Beginners are not recommended listening to podcasts and radio shows. It is difficult to make such content comprehensible because it lacks transcriptions and visual context. Though if you're outside, and you have nothing else to listen to, you must choose something.
If you're an advanced learner, it is okay to use purely audio-based material such as podcasts as one of the primary sources of both passive and active immersion.
Music is the worst content for passive immersion. It contains unnatural speech, and it is difficult to hear the lyrics. We tend to mishear lyrics even when we listen to songs in our native language.
First, to start listening you have to install a music player.
is a music player with a server-client architecture,
it runs in the background as a daemon,
and you need a separate client application to connect to it.
The most widely used mpd client is
ncmpcpp, but there are many alternatives listed on
Arch Wiki, such as
After you've installed
mpd, create the config and playlists directories:
$ mkdir -p ~/.config/mpd/playlists
Make sure to specify your
mpd must run in the background to be able to play music.
To enable autostart, add
mpd & (mind the trailing
&) to your
Alternatively, use autostart settings of your DE/WM.
ncmpcpp is a ncurses-based MPD client. It can help you manage your audio files and playlists, start and stop playback, and everything else you'd expect from an audio player.
ncmpcpp reads user's settings from the
ncmpcpp make sure that
mpd_music_dir points to the same directory
as specified in
Key bindings are configured in
The quantity of immersion is the greatest predictor of how quick you're going to be making language gains. One of the ways of increasing quantity of immersion is making it more language-dense. This is done by condensing the material you use for passive immersion.
As far as I know, the idea of condensing immersion audio was first expressed by mattvsjapan in this YouTube video. According to it, to increase immersion density of a given episode of a TV show, we need to extract all fragments where something was being said and combine them into a single file. As a result we get audio for the original show with all the blank spaces taken out. In practice, for a typical episode of anime the corresponding condensed audio file is around 50% shorter, which means that you're getting twice as much immersion when you listen to condensed audio compared to the original video file.
To create, store and play condensed audio files we're going to use
a small tool that simplifies passive listening down to a few commands.
You can give it a folder with the anime and dramas you've recently watched,
and it's going to make condensed audio for all the episodes stored there,
automatically add them to your
mpd music directory and start playing.
impd, install the
AUR package or follow the installation steps on GitHub.
$ trizen -S impd-git # or yay
To complete the installation, create a config file
impd where to search for the video files.
$ mkdir ~/.config/immersionpod $ echo 'video_dir=/mnt/archive/video/anime' > ~/.config/immersionpod/config
impd operates by rotating immersion material.
To rotate your immersion, call
Rotation consists of two steps:
impdsearches for recently added files in your video directory, extracts audio and condenses it if possible. The resulting audio is saved to the
mpdmusic directory. By default,
impdconsiders recent all videos that were downloaded or modified less than 10 days ago.
impddoesn't touch old videos by default, so it won't pick up anime and dramas that you downloaded a long time ago.
- Old immersion material gets archived,
e.g. moved to the
archivefolder inside your
impdconsiders old audio files that were added to immersion pod more than 10 days ago.
If you're rewatching an older TV-show
or if the video file is stored outside the configured
you can add individual files to immersion pod by calling
This command ignores modification dates of the video files.
Audiobooks contain a lot of silence which lowers density of immersion.
After you've read a book, you might want to condense it to listen to it later,
but because audiobooks don't have subtitles, tools like
impd won't help.
has a function to truncate silence.
Select the entire clip by pressing
Ctrl+A, then press
Effect > Truncate silence. After you adjust the settings, press OK.