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Megurine Luka (VOCALOID2)

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Megurine Luka VOCALOID2 VOCALOID4


This is an article about the Megurine Luka software for the VOCALOID2 engine.

HistoryEdit

Planning began in early 2007, and was devised immediately after Yamaha announced their VOCALOID2 engine, and a bilingual vocal which was originally going to be called "Hatsune Miku". The reason for a bilingual Japanese and English vocal was to break the restrictions set by katakana-English, which was noted for its tendency to sound off. Luka's provider was selected from a list of several candidates.

The first recording of Luka's voice was in December 2007. According to later reports, originally while they were waiting for the recording process to start, both Yu and a woman from marketing began to sing "Happy Birthday" in the style of Marilyn Monroe to John F. Kennedy. This made the five men in the recording booth break out in laughter. When they stopped laughing, Wataru Sasaki announced it was time to begin recording the English vocal. One of the words she was asked to record, being confirmed as "nerd" in various deliveries. According to Yu, due to the fact she needed to record in a single tone, she could not go out drinking the day before as it would make her voice bad.[1]

Recording was resumed the following year in April. A further five sessions occurred, amounting 15/16 hours. The recording of the Japanese was noted to be constant, whereas with the English, the singer always sounded "angry" and everything took 4-5 times as much work, and English samples were cut at a length of more than 0.5 seconds. The experience with producing the Kagamine Rin/Len act2, helped resolve many issues with the English vocal.[2]

Her introduction was firstly by code (CV03) and her existence was made known during the Kagamine original release promotions. She was intended to be the last of the CV series vocals. On the 5th of January the first letter of her surname was revealed with the promise of more information to come.[3] On the 6th of January, Megurine Luka was revealed.[4] Crypton advertised Luka's vocal database as "Japanese," like Kagamine Rin and Len's.

However, a second voicebank was shown shortly before her release that gave her the capability to sing in English. This was revealed on the 14th of November 2008.[5] At the time of Luka's release there was a growing interest in English speaking VOCALOIDs. Luka offered both languages for the price of one, giving Japanese VOCALOID users the chance to test their skills with English capable VOCALOIDs. Her English voicebank was produced in a series of experimental recordings. Her vocal provider Yū was not used to the recording process, which ended up taking eight months.[6]

Crypton Future Media chose Megurine Luka's name to express its hope that she would transcend borders and cultural barriers. Her surname literally means "sound that goes around." Luka was designed by the Japanese illustrator Kei, who had previously created the designs for Hatsune Miku and Kagamine Rin and Len.

Final RetirementEdit

At the end of 2015, it was announced that from March 31, 2016, VOCALOID2 was being retired and no new serial codes were be issued by Yamaha.[7]

Product InformationEdit

DemonstrationsEdit

Demonstrations

Amazing Grace (English demo) Crypton
Demosong01 (Japanese demo) Crypton
Amazing Grace Ver0.9 (English demo) Crypton
afternoon sunshine (Japanese + English demo) YouTube Crypton
Oto no Shizuku (English + Japanese demo) YouTube Crypton

RecommendedEdit

  • 2000 + more than Pentium4 2 GHz / Athlon XP
    • (Recommended 64 2800 + or more Pentium4 2.8 GHz / Athlon)
  • OS Windows XP (32bit) / VISTA (32bit) / 7 (32, 64bit)
    • Operation 32bit compatibility mode (WOW64) in 7 (64bit)
  • RAM memory 512MB or more
    • (Recommended 1GB or more)
    • Real-time VSTi is recommended when using more than 2GB
  • Interface VST2.3 (32bit) / ReWire / stand-alone

Voicebank LibrariesEdit

By default, her software will be set on its Japanese vocal and Producers will have to manually select her English one.

Important: It became a popular myth among some groups of fans that Luka's Japanese vocal was more adept at commanding the English language than her actual English vocal. This, however, has often been proven incorrect as the Japanese vocal lacks much of the needed samples for producing suitable English. See English - Japanese for more details.


Product Information
Package details
Both vocals were sold together at the same price as past Character Vocal Series vocals, making her cheaper to purchase than buying a VOCALOID solely built for English separately. Like previous vocals in the series, Luka is not designed to be a realistic sounding singer as she is designed to be a Character Voice vocal. Her vocal direction was "moody and serious".

Demo .VSQ files for "UP" were made available for download from the Crypton Future Media blog as part of the promotion for her release.[8]

Vocal traits as noted:
  • Mastering both languages gives the user a much greater advantage in terms of language capabilities over using either voicebank alone.
  • The bilingual Megurine Luka product was ranked as the most advanced VOCALOID software released during the VOCALOID2 era.
  • At an optimum known vocal range of #D5, both Megurine Luka and SONiKA joint hold the title of second highest VOCALOID2 vocal.
  • According to information at the of her V3 development, Luka suffered from sounding tight-throated on higher pitches.
  • This particular product does not sound very close to the Yū Asakawa's own voice, to the point where even she noted that this version didn't sound much like her at all.[9] RIP=RELEASE, however, is a known example of when the package did sound like her.
  • She is capable of competing with some of the highest vocals in VOCALOID2.
  • Unlike Hatsune Miku, Luka's voice provider is more experienced, producing more accurately pitched samples than her predecessor.
  • Luka was more capable of producing a multiple of tones than past Character Vocal series vocals and alternating GEN factor will open up a range of roles for Luka. However, altering the GEN factor higher than GEN 96, makes Luka head towards the collapse of her vocal. At GEN 100, her treble will fail completely, making decreases of volume at this point more difficult.[10]
  • Luka's vocal does not collapse on fast passages, this is owed to her strong bass.[11]
  • At the time of Luka's release, she was considered the easiest vocal to repair tonal faults of, though this title was lost by 2011 to other VOCALOIDs such as the Append vocals, Iroha Nekomura and VY1.[12]
Software issues as noted:
  • Despite including English within her package, Crypton Future Media did not offer technical support during the VOCALOID2 era for that particular voicebank library, but did offer help for the Japanese voicebank library.
  • She does not have an English interface, although this is possible to resolve.
  • The inclusion of English and Japanese left Luka as the VOCALOID2 vocal most likely to encounter issues with either of the two VOCALOID2 engine versions.
  • Some sounds are reported to be as bad as the original Kagamine Rin\Len package
  • Luka's total file size was 3GB, though it was not the most demanding of the vocal libraries for VOCALOID2, it was the most resource demanding of the Japanese releases VOCALOIDs at the time.


Individual VocalsEdit

Product Information
Optimum
  Genre: Latin, Jazz, Ethno Pop, House, Dance, Electronica  Tempo: 65 ~ 145BPM  Range: D3 ~ D5
Package details
JAPANESE vocal was intended for Japanese, but had the same vocal direction as the English vocal.
Vocal traits as noted:
  • Luka is one of the smoother VOCALOID2 voicebanks and is not as choppy sounding as her predecessors in the CV series.[13]
  • Her soft vocals can create issues with pronunciations and clarity.
  • Both optimum range and tempo are identical for both English and Japanese, as a result they have relatively the same capabilities.
  • The pronunciations within the Japanese vocals are slightly more solid than the English ones.
Phonetic notes as noted:
  • Her vocal has a habit of collapsing during pronunciation of "サ" ("sa") related lines.
Voicebank sample

Megurine Luka Japanese V2

Luka Megurine JPN


Product Information
Optimum
  Genre: Latin, Jazz, Ethno Pop, House, Dance, Electronica  Tempo: 65 ~ 145BPM  Range: D3 ~ D5
Package details
ENGLISH vocal was intended for English and had the same vocal direction as the Japanese vocal also included within the package. She is capable of 2,200 word connections from the English dictionary.

Her English dictionary is more limited than other English capable VOCALOID 2 voicebanks at 2,200, this is the least amount of words known by a released VOCALOID. A Extra dictionary which increased the amount of words Luka could form, was later supplied.

Vocal traits as noted:
  • She is the only other English capable female voicebank in the VOCALOID 2 range besides Prima to have breaths included in her voicebanks.
  • The recommended optimum ranges for the English voicebank are also identical to that of the Japanese voicebank, meaning in theory they will both will work for similar types of music.
  • The English vocals pronunciations are softer and less clear than the Japanese vocal.
  • Sometimes her Japanese accent leaves intangible results.
  • It has been reported that she does not seem to have many distinct vowel related diaphones in her sample library in her English voicebank, making her voice less smooth than other English capable VOCALOIDs within the VOCALOID2 era.
Phonetic notes as noted:
  • The Dark L from her English voicebank has a syllabic behavior, allowing using on its own and extend its duration.
  • She does not have the capabilities to roll the "R" sound and is the only VOCALOID 2 English capable VOCALOID besides Sweet ANN to not have it.
Software issues as noted:
  • Luka's English has a reputation for having too much softness and sounding bored. It is something her developers are much aware of.[14]
    • An old trick within the Western VOCALOID fandom is to have Luka's VOCALOID2 English voicebank and SONiKA sing together. If correctly done both voices will blend together. The advantage of this is that both VOCALOIDs effectively hide each others' flaws since both VOCALOIDs have similar vocal ranges.
  • When discussing Megpoid English, NeutrinoP noted that Luka has bad sounds among her good sounds. This leads to having a lack of adjustment room because of the lack of good sounds to begin with.[15]
Voicebank sample

Megurine Luka English V2

Luka Megurine ENG


A trial version has been released of this product.

ReferencesEdit

  1. link
  2. link
  3. link
  4. link
  5. link
  6. link
  7. link
  8. link
  9. link
  10. Taken from Nico Nico Pedia
  11. Taken from Nico Nico Pedia
  12. Taken from Nico Nico Pedia
  13. [1] VOCALOIDOtaku - Japanese VOCALOIDs Comparative Charts and Tips
  14. link
  15. lin

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