
The Japanese language does not have a distinct L sound, and Japanese speakers often find it challenging to differentiate between L and R sounds when learning English. This difficulty arises because Japanese has one liquid phoneme, typically realized as an apico-alveolar tap, which is similar to a blend of the English R and L sounds. As a result, Japanese speakers may perceive English R and L differently and struggle to produce these sounds accurately. However, with speech training, Japanese adults can improve their perception and production of R and L, even if they have lived in an English-speaking country for an extended period.
| Characteristics | Values |
|---|---|
| Japanese speakers' perception of the English /r/ sound | Compressed-lip velar approximant [w͍] |
| Japanese speakers' perception of the English /l/ sound | More similar to Japanese /r/ than English /r/ |
| Difficulty in distinguishing English /r/ and /l/ sounds | Due to lack of muscle training for tongue articulation |
| Japanese liquid phoneme | Realized as apico-alveolar tap [ɾ] or alveolar lateral approximant [l] |
| English liquid phonemes | Rhotic /r/ and lateral /l/ |
| English /r/ phonetic realizations | Postalveolar approximant [ɹ̠] |
| English /l/ phonetic realizations | Alveolar lateral approximant [l] |
| Japanese perception of English word endings | Tendency to add a vowel sound, e.g., "apple" pronounced as "appou" |
| Teaching the English "L" sound to Japanese speakers | Emphasizing tongue placement and absence of ending vowels |
| Transcribing English words in Japanese | Use of Katakana, a specific alphabet for foreign words |
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What You'll Learn
- Japanese speakers often have difficulty differentiating between the English sounds /r/ and /l/ due to the absence of a distinct /l/ phoneme in Japanese
- To produce the English /l/ sound, Japanese speakers must learn new tongue articulations, as no Japanese sounds require similar tongue movements
- The Japanese language uses the Katakana alphabet specifically for transcribing foreign words, which helps speakers differentiate between sounds like /r/ and /l/
- Linguist Moe Berg suggested adding a cedilla mark to the bottom of Katakana characters to help Japanese speakers produce an English /l/ sound
- Japanese speakers can distinguish between /r/ and /l/ when the sounds are acoustically manipulated to sound less like speech, indicating that perception is not solely auditory

Japanese speakers often have difficulty differentiating between the English sounds /r/ and /l/ due to the absence of a distinct /l/ phoneme in Japanese
This difficulty in distinguishing between /r/ and /l/ is not limited to speech perception but also extends to speech production. Japanese speakers learning English as a second language may struggle to produce the /r/ and /l/ sounds accurately, even with extensive speech training. This challenge arises because Japanese has a single liquid phoneme, typically realised as an alveolar tap, whereas English has two liquid phonemes, /r/ and /l/, with distinct articulatory requirements.
Research has shown that Japanese speakers may improve their perception and production of /r/ and /l/ through explicit training. For example, Lively et al. (1994) found that monolingual Japanese speakers' ability to distinguish between /l/ and /r/ improved after a 3-week training period involving minimal pairs. However, it is unclear whether adult learners can ever fully overcome their difficulties with these sounds, even with extended exposure to English in native-speaking environments.
The lack of a distinct /l/ phoneme in Japanese has resulted in various strategies to transcribe foreign words containing the /l/ sound. Historically, Japanese speakers used any one of the syllables "ra," "ri," "ru," "re," or "ro" to approximate the /l/ sound in borrowed words. For example, "lemon" became "remon," and "McDonald" was adapted as "Makudonarudo." More recently, there has been a trend to avoid pronouncing /l/ as a consonant and instead substitute it with the vowel "u." As a result, words like "apple" may be pronounced as "appou," and "unbelievable" may become "anbiriibabou."
To teach the /l/ sound effectively to Japanese students, instructors emphasise that words and sounds in English do not always end with a vowel, as is the case in Japanese. They guide students to place the tip of their tongue behind the front teeth and produce the /l/ sound without attaching any vowels. Additionally, the use of the cedilla mark has been proposed to soften the Katakana "ra," "ri," "ru," "re," and "ro" to more closely resemble the English /l/ sound.
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To produce the English /l/ sound, Japanese speakers must learn new tongue articulations, as no Japanese sounds require similar tongue movements
The Japanese language does not have an /l/ sound, and Japanese speakers often struggle to distinguish it from the English /r/ sound. This is because Japanese has one liquid phoneme, /r/, which is realised as an apico-alveolar tap or an alveolar lateral approximant. In contrast, English has two liquid phonemes: rhotic /r/ and lateral /l/.
When speaking English, Japanese speakers must learn new tongue articulations to produce the /l/ sound, as no Japanese sounds require similar tongue movements. The /l/ sound involves contact with the alveolar ridge and some raising of the tongue dorsum (velarization), especially when syllable-final. This is a unique tongue movement that is not required for any Japanese sounds.
Japanese speakers may have difficulty hearing the difference between /r/ and /l/ due to the acoustic similarity between the two sounds. Studies have shown that Japanese speakers can distinguish between the two sounds when they are acoustically manipulated to sound less like speech. For example, removing the acoustic cues that indicate speech can help Japanese speakers perceive the difference.
Furthermore, Japanese speakers may struggle to produce the /l/ sound due to a lack of muscle training for tongue movements. Native Japanese speakers are not accustomed to pointing their tongues, as this is not required for any Japanese sounds. Therefore, producing the /l/ sound may require explicit articulatory training in the correct tongue and mouth positions.
Teaching the /l/ sound to Japanese speakers often involves instructing them to place the tip of their tongue behind the front teeth and produce the "llllll" sound without any attached vowels. This helps students isolate the unique tongue movement required for the /l/ sound. Additionally, slowing down the pronunciation of words containing /r/ and /l/ can help Japanese speakers become aware of the distinction between the two sounds and improve their production.
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The Japanese language uses the Katakana alphabet specifically for transcribing foreign words, which helps speakers differentiate between sounds like /r/ and /l/
The Japanese language does not have a distinct "L" sound. The closest sound is the liquid phoneme /r/, which is usually realised as an apico-alveolar tap [ɾ] and sometimes as an alveolar lateral approximant [l]. This can make it difficult for Japanese speakers to differentiate between English /r/ and /l/ sounds, even if they are comfortable with conversational English. However, Japanese speakers can distinguish between /r/ and /l/ when these sounds are not processed as speech, such as through articulatory training.
To transcribe foreign words, the Japanese language uses the Katakana writing system, which is one of two Japanese syllabaries that function as alphabets. Each character in the Katakana "alphabet" represents a particular syllable or sound, and these syllables are combined to sound out foreign words in a way that Japanese speakers can pronounce and understand. Katakana is used primarily for writing loanwords or gairaigo, which are words from other languages that have been adopted into the Japanese language. This is similar to the English language, which has adopted loanwords such as "karaoke" from Japanese.
Katakana is especially useful for transcribing foreign words that contain sounds that do not exist in the Japanese language. For example, V-sounds do not exist in Japanese, so the characters ヴァ, ヴィ, ヴェ, and ヴォ are used to approximate these sounds. Similarly, F-sounds are created by combining フ with small vowels, and W-sounds are formed by combining ウ with small vowels. By using these unique features of the Katakana alphabet, Japanese speakers are able to differentiate between foreign sounds, including English /r/ and /l/, and transcribe them into their language.
In addition to transcribing foreign words, Katakana is also used for writing sound effects, titles, onomatopoeia, and modern technologies and internet communication terms. It is an extremely common writing system in Japan and is an important part of the Japanese language, alongside Hiragana and Kanji. Learning Katakana can greatly improve one's fluency in Japanese and help with reading menus, understanding foreign words, and communicating in modern contexts.
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Linguist Moe Berg suggested adding a cedilla mark to the bottom of Katakana characters to help Japanese speakers produce an English /l/ sound
Japanese does not have an "L" sound, and the Japanese "R" sound in Katakana is pronounced as an "L". This is an error in the original system of Katakana, which was created by an American, Mr Hepburn. Linguists argue that the Japanese "L" is actually a "rolled R", which sounds like an "L" to English speakers.
The Katakana script is used to spell out foreign words, but not all sounds in foreign words have direct equivalents in Japanese. As a result, the use of Katakana is extremely difficult for English speakers because they expect English words to sound like English. For example, the name "Light" in manga/anime is not pronounced as an English speaker would say it, but as ""eru" or "raito".
To overcome this, Linguist Moe Berg suggested adding a cedilla mark to the bottom of Katakana characters to help Japanese speakers produce an English /l/ sound. During a trip to Japan, he was asked how to distinguish the two sounds. He suggested adding a cedilla mark to the bottom of the Katakana "ra, ri, ru, re, ro" to soften it and make it more resemble the English "L" sound. This is similar to the French letter "Ç", where the cedilla mark changes the pronunciation of the letter from a "K" sound to an "S" sound.
Some people have suggested that the best way to teach the "L" sound is by hiring native English speakers as teachers. One method is to impress upon the student that words/sounds do not always end with a vowel as in Japanese. The "L" isn't la, li, lu, le, lo. It's just "L". The student is then instructed to place the tip of the tongue behind the front teeth and make the "L" sound without any vowels attached. Once they can do that, they can add words like "ap" or "sing" to form the sounds "apple" or "single".
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Japanese speakers can distinguish between /r/ and /l/ when the sounds are acoustically manipulated to sound less like speech, indicating that perception is not solely auditory
Japanese speakers often have difficulty distinguishing between the English /r/ and /l/ sounds. This is because Japanese phonology contains a single liquid phoneme, /r/, which has acoustic properties similar to both the English /r/ and /l/ sounds. As a result, Japanese listeners must learn to focus on the acoustic cues that differentiate the English /r/ and /l/ sounds.
While Japanese speakers may have trouble differentiating between English /r/ and /l/ sounds in natural speech, research has shown that they can distinguish between the two when the sounds are acoustically manipulated to sound less like speech. Miyawaki et al. (1975) found that Japanese speakers could distinguish between /r/ and /l/ just as well as native English speakers when the sounds were acoustically manipulated to remove all acoustic information except the F3 component, making them sound less like speech.
Lively et al. (1994) further explored this phenomenon and found that the ability of Japanese speakers to distinguish between the two sounds depended on where the sound occurred in a word. They found that word-final /l/ and /r/ with a preceding vowel were distinguished the best, followed by word-initial /r/ and /l/. The most challenging to distinguish accurately were those that occurred in initial consonant clusters or between vowels.
These findings suggest that while Japanese speakers may initially struggle with differentiating between English /r/ and /l/ sounds, they can improve their perception through training. For example, Lively et al. (1994) found that monolingual Japanese speakers in Japan could increase their ability to distinguish between /l/ and /r/ after a 3-week training period involving hearing minimal pairs of words that differed only in the /r/ and /l/ sounds.
Additionally, McClelland, Fiez & McCandliss (2002) argue that speech training can lead to a real change in the perception of these sounds as speech, rather than simply improving auditory perception. However, it remains unclear whether adult learners can ever fully overcome their difficulties with distinguishing between /r/ and /l/.
In conclusion, while Japanese speakers may initially struggle with distinguishing between English /r/ and /l/ sounds due to the acoustic similarities with the Japanese liquid phoneme /r/, they can improve their perception through training, especially when the sounds are acoustically manipulated to sound less like speech.
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Frequently asked questions
Japanese does not have a distinct L sound. The closest equivalent is the sound represented by the letter R in English.
Japanese speakers often struggle to distinguish between the English sounds L and R because they are perceived as similar to the same sound in Japanese. This is because Japanese only has one liquid phoneme, usually realised as an apico-alveolar tap and sometimes as an alveolar lateral approximant, which is similar to the English R.
One method is to teach students that, unlike in Japanese, words in English do not always end with a vowel. Students can be taught to produce the L sound by placing the tip of the tongue behind the front teeth and forcing air out on both sides.

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