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Megurine Luka V4X

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Megurine Luka VOCALOID2 VOCALOID4


This is an article about the Megurine Luka V4X software for the VOCALOID4 engine.

HistoryEdit

Megurine Luka Append: 2010Edit

Megurine Luka was the next member of the Character Vocal series to receive an append.

Wat confirmed he was considering an "aggressive Whisper" vocal for her.[1]

In December 2010, tests were run on Luka's alpha expression voice. However, it was not as sexy as Wat had hoped.[2] Wat was also surveying the quality of the vocal.[3]

Confirmation of production order was MEIKO > Megurine Luka >> KAITO.[4]

Megurine Luka Append: 2011Edit

The first commercial use of the Luka Append was by Konori on the album VOCALOID Minzoku Chou Kyokushuu (VOCALOID民族調曲集), where she sings "Hoshizora to Yuki no Butoukai (Zeal mix)".[5] The VOCALO APPEND album later used a beta voicebank of Luka's Soft Append.[6]

In July, Wat reported that MEIKO and Luka's progresses were coming along quietly.[7]

In a tweet on July 12, Wat mentioned doing tests in relation to a Luka "Soft" append.[8]

On December 1, Wat noted that all previous demos were originally rendered with the VOCALOID2 engine and things were being redone for the VOCALOID3 engine.[9]

A video with samples from the VOCALO APPEND album was uploaded on December 17.

Megurine Luka Append: 2012Edit

Crypton confirmed that they were going to add Japanese and English voicebanks to Luka's V3 appends, but were still trying to work out how to make them cost effective.[10]

Megurine Luka V3: 2013Edit

Wat confirmed that Luka and MEIKO were planned for release on VOCALOID3, but no estimated releases were set at this moment.[11]

In November, it was confirmed that Luka's V3 version was in the process of being tuned. It was reported to sound the same as the VOCALOID2 vocal, but less painful to listen to.[12]

Later in December, Wat continued to speak of Luka. He mentioned the new standard vocal was calm, a second vocal had more of a flashy flare about it, and a 3rd was a more breathy vocal intended to be sexy. Their focus was a vocalist with a varied tone.[13]

On December 16, Wat mentioned having worked with Luka's recording and thanked Asakawa for her patience.[14] The day before, Wat mentioned recording the sound, "spell" (the 50 sounds needed for Japanese), using a customized list rather than the standard YAMAHA "Spell".[15] At the end of 2013, Wat mentioned he was working on the personality of each Kagamine and Megurine vocal.[16] Wat also mentioned working on a feminine SOFT-like voice, but thought the bass was not good enough and needed adjustments. Wat mentioned he had done some experimental recording in the second half of 2013.[17]

Megurine Luka V4X: 2014Edit

In January 2014, it was mentioned that a "POWER" vocal was being produced. Comparing Luka's new vocal, MEIKO Power and Rin's Power Append (VOCALOID2), Wat mentioned these forceful vocals always maintained a strong feeling, even compared to the reduced wavelength of Rin POWER's V2 vocal.[18] Wat also mentioned there were annoyances with Luka's "elegant tone of voice" in the new vocal.[19] After a week of editing Kagamine Rin's vocal, Wat mentioned it was time to return to working on Luka.[20]

Luka V3 was given a website in January 2014. The only data contained within the page at the time were the 3 main features of the upcoming release. At the bottom of the page, it was mentioned that details were to be released soon. On January 30, Wat mentioned that there was a shift from α and that the β version was now under construction.[21] The vocal was under experimental techniques and was being scrutinized during its development.[22] The adjustments being made to Luka's V3 vocal gave her more expression within the vocal.[23] Wat mentioned that in regards to to the "core" sound of Luka, the VOCALOID team (consisting of 3 producers, a sound engineer, and a project director) met up for discussion every 3 weeks to debate on the progress for further adjustments to the product.[24] They were aiming to make the vocal more flexible.[25]

On January 31, Wat mentioned that checking the characteristics of Luka's voice and the vowel/consonants were the focus being the #C5 range, mentioning the printouts of Luka's data were mounting up on his desk at the time.[26] Wat also explained what he meant by increasing the expressiveness of Luka's voice and that it did not refer to a falsetto vocal, but the allowance of extreme pitches.[27] At the end of January, Wat mentioned that they were working on the things mentioned on her teaser site. They were considering the forms of past Appends, there were changes to the databases of each vocal, and that the forms previous Appends took may not be the best.[28]

Wat mentioned thickness of vocal was one of several focuses. Bass and vocal range were all being worked upon while trying to keep them sounding natural.[29] Crypton was working on a new method of recording the Luka vocal that was proving successful.[30] It was mentioned that Luka, Rin, and Len were all being worked upon at the same time.[31] Later, Wat tweeted that Luka's new voice was maybe too thick.[32]

In late March, both POWER and WHISPER vocals were mentioned as being checked upon.

On July 11, Asakawa tweeted that they were "recording Luka in a very interesting way" and she said that she would be posting pictures of the recording process when the time came.[33] On the 15th, they noted they were using the UTAU "Gahata Meiji" as a template to bring out Luka's qualities.[34]

On August 23, Wat tweeted that Luka's phonemes were entering final tuning.[35] The next day, he tweeted that the design rough draft was nearly ready and he was progressing with the sound brushup.[36]

It was mentioned that they had to work backwards with VOCALOID to bring out the characteristic sex-appeal of her provider's vocal.[37]

Wat later mentioned that Luka was made mostly in-house with help from people in the US. He mentioned that the new Luka voice was worked upon to fit in with YAMAHA's sound system. It was mentioned that he had to constantly remodel the VOCALOID database.[38]

On September 12, Wat tweeted about recruiting people for Japanese and English VSQ data to show off Luka's high and low range.[39][40] Information about Luka V3 would be made available at Miku Expo 2014 held in New York.[41] On October 1, the band that would be featured at the MikuExpo practiced with Luka's voicebank using lyrics written by Rockleetist, who was known for her English translyrics and covers of VOCALOID songs.[42]

On October 9, a demo for Luka was revealed at Miku Expo, as well as her projected release date of the first quarter of 2015, and Wat released a tentative silhouette of Luka V3 on Twitter. He explained that in the next month he would go into detail about why Luka was delayed for so long and mentioned she worked well with a new function.[43]

In late October, PowerFX's Bil Bryant revealed that their new vocal, RUBY, was originally due before December 2014. However, since VOCALOID4 was due release soon, they were holding her back. In light of this, Wat was asked about Luka's status. The title of the product was mentioned and it was noted that Wat had referred to Luka as "New Luka" and was, at the time, not called "Luka V3".[44]

On November 1, it was mentioned that "POWER" was in the process of removing noise interference.[45]

On November 7, Crypton's site was updated to reveal new information about Megurine Luka's update. It was confirmed she was being produced for the V3 engine and would come with the new E.V.E.C ("Enhanced Vocal Expression Control") feature which worked with Japanese vocals. This allowed the user to vary the vocal expression on each note and adjust the power and softness of the enunciation. It also contained various breath sounds.[46]

Later, Wat announced that he would update Luka with more news on the following weekend. Wat apologized for keeping fans of Luka waiting, but Luka featured new innovations.[47] These news consisted of several things Wat discussed that was related to Luka Append, E.V.E.C., and their developments. Wat mentioned there were problems with the variety of choices to use with E.V.E.C. and decided to use POWER/SOFT/CUTE/WHISPER/CLOSED, while POWER2/POWER3/FALSETTO/DOUBLE/HUSKY/DARK were reported as being troublesome voices to deal with. They had to balance out cost and effectiveness of all 9 vocals within.[48] Wat also discussed that several voices sounded close to each other and listed them as: WHISPER/HUSKY、CLOSED/DARK、POWER/POWER2, all of which were recorded without fail. FALSETTO/DARK required much work. POWER's impact on the other vocals was great, but has much less effectiveness on DARK and FALSETTO and was described as annoying.[49] The use of DARK within E.V.E.C was poor and barely "Luka-ish" according to Wat. When he spoke of Luka Append itself, he said that Japanese Luka's DARK append was also hard to balance and gave him less concerns than with the soft/bored tone of Luka English.[50]

Upon the VOCALOID4 announcement in November, it was revealed that the site had been temporarily set up and she would actually be released for the VOCALOID4 engine as "Megurine Luka V4X". Her vocals were changed to "Japanese; Soft/Hard" and "English; Straight/Soft", while her V3 version was said to receive £Japanese/Power/Soft/Cute/Whisper/Closed/English. E.V.E.C was finally confirmed to allow access to samples from vocal "colours". This was based on the original "voice of colours" that the Character Vocal series' Appends had intended to follow. The extra Append vocals/colours that were included in E.V.E.C. were POWER, WHISPER, CUTE, SOFT, HUSKY, and FALSETTO.

In late December, Wat mentioned that Luka was focused with variation of "breath" in contrast to the Kagamines' strength of tension.[51] On the 9th, it was mentioned that GWL samples were still being recorded.[52]

Megurine Luka V4X: 2015Edit

On January 9, 2015, an updated list of the E.V.E.C vocals were shown. The listed vocals were "Power 1", "Power 2", "Whisper", "Native", "Cute", "Husky", "Soft", "Dark", and "Falsetto".[53]

It was tweeted on January 30 that Luka would have a demo released on the following day. It was also mentioned that she was delayed 20 days later than what they initially had in mind.[54]  The demo was confirmed to utilize her English voicebanks and would be using a song that featured Luka's VOCALOID2 version.[55]

According to the emails sent to fans who preordered Luka V4X, she would be released on March 19, 2015.[56]

Posted on the Big Fish Audio page, consumers who had already purchased Hatsune Miku V3, the Hatsune Miku V3 bundle, KAITO V3, or MEIKO V3, could receive a promotional discount towards Luka V4X for a limited time.[57]

Product InformationEdit

DemonstrationsEdit

Append versionEdit

Demonstrations

Poison Apple & Cinderella
Starry Sky and Snow Ball (Zaoling Mix) Niconico
Poison Apple & Cinderella (Full ver.) Niconico

V4X versionEdit

Demonstrations

Just Be Friends (English, practice session) Facebook
Just Be Friends (English, MikuExpo Showcase) YouTube
Just Be Friends (English, MikuExpo Concert) YouTube
Evec Luka Sound Sample SoundCloud
『巡音ルカ V4X』機能紹介デモムービー Niconico YouTube
ベタ打ちショートフレーズ (Luka HARD) SoundCloud
ベタ打ちショートフレーズ (Luka HARD, with Power) SoundCloud
ベタ打ちショートフレーズ (Luka HARD, with Power and volume adjustment) SoundCloud
RIP=RELEASE (Short ver.) (English Straight and Soft) Niconico YouTube
残酷な天使のテーゼ (Zankoku na Tenshi no Tēze) (Japanese Hard and Soft, with EVEC) YouTube Box
Just Be Friends (Short ver.) (English Straight and Soft) YouTube
シュガーバイン (Sugarvine) (Short ver.) (Japanese Hard and Soft) YouTube

RecommendedEdit

  • OS:
    • Windows: Windows 7 (32/64bit)/ Windows 8 (32/64bit)
    • Mac: OS X 10.8, 10.9, 10.10
  • CPU: Intel Core 2 Duo 2 GHz or more
  • RAM: 2GB or more (recommended more than 4GB)
  • Hard Disk Capacity:
    • Windows:
      • More than 25GB (NTFS format)
    • Mac:
      • More than 25GB (HFS+ format)
  • Other: while the Windows ver. can be both physical (3 discs) and digital, the Mac version is DL only.
  • Internet connection.

Voicebank LibrariesEdit

Product Information
Versions
  Trial/Demo Vers?: Yes  Starter Available?: No
Package details
This is an improved version of the previous VOCALOID2 version of Megurine Luka. The software is designed to work with Piapro's new function, which favours professional vocals rather than voice acted. These work with the Japanese HARD/SOFT vocals to allow access to addition samples from voicebanks; POWER 1, POWER 2, NATIVE, WHISPER, CUTE, SOFT, DARK, HUSKY and FALSETTO which are included in the E.V.E.C plug-in.

The inclusion of two English vocals, extra vocals for XSY and EVEC made Luka V4X one of the most extensive packages for sale at the time of the release, if not the most. This is notable as while single aspects may be easier to use for beginners, the complexity of the overall package when used as a whole is more suited to professional or expert Vocaloid-users.

Also in addition to this, unlike the VOCALOID2 release, Yū Asakawa felt Luka sounded like her real voice.[58] The Package itself is based upon "Breath".[59]

This package comes with Piapro Studio.

Vocal traits as noted:
  • The tempo range has greatly increased, allowing Luka to not only cover more genres of music, but its expansion in particular allows for far faster songs than what previously had been able to be achieved comfortably with the VOCALOID2 version. The range of tempo is the same for both vocals, meaning both cover the same genres of music.
  • This was the only V4x product which offered both the Japanese and English voicebacks as standard. In the case of Kagamine Rin/Len V4 English and Hatsune Miku V4 English, both packages were either sold separately or bundled with their V4x packages.
  • This is the cheapest "complete" V4x package as includes both Vocaloid Japanese and English vocals where Miku and the Kagamines packages sell the English vocals as a complete bundle at higher price.
Cross-Synthesis notes:
  • Without the full version of the VOCALOID4 engine XSY cannot be used - limiting the user to E.V.E.C. only.
Phonetic notes as noted:
  • Triphones Added
Software issues as noted:
  • While certain aspects alone are easier to use than others, when taken as a whole the Luka V4X is not a beginner friendly package and is more suited to a professional or advanced level of producers. This is due to its complexity or variety of vocals and functions within the package, particularly in regards to EVEC.
  • Several quality issues regarding to the technology behind Luka V4X were noted, the most notorious being the lack of smoothness in both Japanese and English libraries and the constant glitches and warp audio noise at certain points of her performance, forcing users to handle the voicebank on a higher complexity level.
  • Like the VOCALOID3 Crypton Future Media, Inc. VOCALOID vocals, as it does not come with VOCALOID4 itself and has Piapro Studio supplied instead.
  • More concerns came with the handling of the package pre and post release;
    • When released, there was little help provided on how to use her software: particularly, coverage of E.V.E.C. was low. Magazines covering the Luka V4X package couldn't or didn't necessarily cover every aspect of the product due to its size. With almost no tutorials covering every single aspect of the feature, this means most support at the time came from the Vocaloid community, or from End User trial and error.
    • While more a criticism on the package handling than an issue with the software, compared to past releases, there were very few demos of Luka V4x as a whole. Most coverage of the package in regards to its promotion focused on E.V.E.C. and not on the VOCALOID vocals, with its main promotion relying on the "Hard" trial release. This created its own problems as users had few examples to gather ideas from.
  • This software does not come with the full VOCALOID4.


Individual vocalsEdit

JAPANESE DBEdit
Product Information
Vocal traits as noted:
  • Improved quality compared to the V2 library.
  • The issue with her throat sounding tight on higher pitches has been addressed, so she handles this range better.
  • Maintains the same feminine timbre as the original V2 package.
  • Adjustments made to the tension in the vocal to improve its realism. Luka's voice provider also confirmed that this particular voicebank is intended to sound more realistic than the VOCALOID2 version.[60]
  • The "core" Luka vocal was worked upon to make it more expressive, allowing for extreme pitches.
  • The vocal has also has more flexibility added to it.
  • Just as with Hatsune Miku V3, the overall range of Luka's voice has been lowered. She no longer reaches the high notes she did in VOCALOID2. She has a slight vocal range increase compared to her previous release.
  • In contrast to the Kagamine Rin/Len V4X and Hatsune Miku V4X vocals that followed how Luka V4x works is reversed. Instead of having multiple tones and are coloured to a certain expression, Luka has two expressions to begin with and they are coloured different tones.
Cross-Synthesis notes:
  • All 4 vocals can use XSY.
    • Because of the fact "SOFT" and "SOFT_EVEC" are identical, as well as "HARD" and "HARD_EVEC" being identical, discountinging E.V.E.C. the vocal variations offered by the package are the equivalent to 2 additional voicebanks and a total of 4 theoretical voicebnks are offered in total within the package.
    • Without the use of XSY, there are 18 variations offered via E.V.E.C. colours using SOFT_EVEC and HARD_EVEC. Once XSY is applied, 108 variations can be achieved, a total of 126 varitions are on offer from E.V.E.C. alone.
  • "HARD/HARD_EVEC", "HARD_EVEC/HARD", "SOFT_EVEC/SOFT" and "SOFT/SOFT_EVEC" weren't really designed for XSY together and produce only subtle results at best. So this lowers the amount of variation with the overall vocal. Such combines rely on the Voice colours; this can hve almost no impact on the voice, if any at all. Without colouring the voice, there is no noticeable difference at all.
  • SOFT EVEC and HARD EVEC present the most potential problematic XSY combination of the package. Depending on which colour is used depends on the impact of both vocals. At their worst, both vocals produce metallic sounds, which result in a low quality XSY result with a great deal of undesired faults.
E.V.E.C. as noted:
  • The biggest issue of the package was focused mostly on the new EVEC system; it received much criticism and negativity. The criticism generally were complaints such as (but not limited to); unsatisfactory and low quality results, difficulty when using it, lack of significant difference between Voice Colours, and several glitches. Much of the complaints are due to EVEC being relatively new as a function both for its developers themselves and for the producers using it.
  • The voice of E.V.E.C "DARK" is reported as much harder to balance.[61]
  • Some users were dissatisfied with the strength of her overall "Power" colours. The impact on the vocal for the most point only tends to make it louder and not strengthen specs of the vocals, such as add tension or impact of treble/bass ranges. As a result, they do not mimic the effect of true "Power"-esque Vocals for VOCALOID. Most notable of all, there is not much difference between the two, to the point sometimes its hard to tell which was even used and at times they barely make an impact at all.
  • Despite the number of colours offered by Voice Colour, there was not actually a great deal of expression offered overall as most were too subtle to notice. The Kagamine Rin/Len V4X and Hatsune Miku V4X packages that followed actually had more expression because they switched the roles voicebank and colours as seen in Luka from expression being coloured with tones to tones being coloured with expression.
  • The lack of variation becomes more noticable when XSY is brought into use. Some of the differences between colours become so subtle they barely make an impact on the results. This is particular notable when E.V.E.C. was designed to expand on the capabilities of XSY, making the use of E.V.E.C. with XSY sometimes not worth it depending what voicebank and colours are in use.
  • One of the additional functions of EVEC was "Consonant extension" feature. This should have allowed more expression by extending the consonant and depending on which voicebank was used for Luka. The result was a feature that should have worked well with GWL to give more expression and would allow effects such as "shouting". Instead, the feature was barely noticeable enough to impact the vocal enough and was reworked in later V4x releases and replaced with the "Pronunciation extension" feature.
Phonetic notes as noted:
  • Triphones Added
Software issues as noted:
  • Overall;
    • Users noted that she has several phonetic glitches, especially when using the E.V.E.C. voice colors.
    • Both VOCALOID4 and E.V.E.C. voicebanks have issues related with choppiness between the transitions.
    • Neither "HARD" nor "SOFT" are true recreations of her original V2 Japanese voicebank. This means that those wanting a faithful recreation of the original V2 vocal using only VOCALOID4's software alone will not be able to achieve this in either Voice's unedited state. Even with use of XSY, it is not possible to get the same results V2 Japanese Luka created. Using E.V.E.C. "Native" is the only way to achieve results somewhat close to the old V2 voice, as Native is based on the original vocal's qualities and traits, but is still quite different.
  • Upon release of her trial, users reported distortion on her high notes.
  • Some users found her VOCALOID voicebank to contain Noise background.


Product Information
Optimum
  Tempo: 50-170BPM  Range: E2-F4
Package details
"Japanese DB HARD" is characterized by a powerful voice that increases in strength as the pitch gets higher. It can be switched with "HARD_EVEC" to turn off the effect of EVEC.
Vocal traits as noted:
  • It’s possible to set accents in the voice such as adding intensity of mouth closure and partially creating a cuter voice tone.
Cross-Synthesis notes:
  • When used for XSY as a secondary vocal, this vocal will sharpen the sounds further for SOFT, HARD EVEC and SOFT EVEC.
  • The most natural XSY result for this vocal is produced between HARD and HARD EVEC.
  • Mixing "Hard" and "soft" are the most controllable XSY combination of the package since there are only standard VOCALOID voicebank variables between them and they don't factor any additional variables from EVEC. On the other hand, this is the least experimental combination.
Phonetic notes as noted:
  • More to come
Software issues as noted:
  • Some users stated that outside of her mid range, she sounds completely different compared to the original V2 package.
  • She can sound muffled if not edited correctly.
  • HARD and HARD EVEC at their core are the same vocal, with only the EVEC function separating them. Mixing HARD and HARD EVEC therefore can have the least impact on each other.
Voicebank sample
Luka V4X JPN Hard

MEGURINE LUKA V4X Hard


Product Information
Optimum
  Tempo: 50-170BPM  Range: E2-F4
Package details
"Japanese DB SOFT" is characterized by a soft and gentle voice. It can be switched with SOFT_EVEC to turn off the EVEC effect.
Vocal traits as noted:
  • This DB is considered the closest to her original V2 package, though is still notoriously different.
  • This DB is also considered the easier one to use out of the Japanese voicebanks.
Cross-Synthesis notes:
  • When used for XSY as a secondary vocal, this vocal will loosen the sounds further for HARD, HARD EVEC and SOFT EVEC.
  • XSY between SOFT and SOFT EVEC produces little variation as at its core, "SOFT EVEC" is the same vocal as SOFT.
Phonetic notes as noted:
  • More to come
Voicebank sample
Luka V4X JPN Soft

MEGURINE LUKA V4X Soft

Product Information
Package details
"Japanese DB HARD_EVEC" allows access to EVEC within Piapro Studio. It can be switched out in place "HARD" to allow access to EVEC within a song.
Vocal traits as noted:
  • According to her site, it's suitable for expressing sharpness and precision in the voice when combined with the Voice Color control of E.V.E.C.
  • All 9 "colours" have hard-pronunciations and offer more dramatic contrasts between them than "Japanese DB SOFT_EVEC".
  • Allows for a range of accurately controlled tones.
Cross-Synthesis notes:

XSY related;

    • Depending on which EVEC colour was used, the impact of XSY on this vocal is effected.
    • The most natural XSY result for this vocal is produced between HARD and HARD EVEC.
    • The most variations between two vocals for XSY within this package are caused by mixing certain HARD EVEC and SOFT EVEC colours.
Phonetic notes as noted:
  • Allows for delicate editing per phonetic.
Software issues as noted:
  • Can be difficult to balance some of the "HARD EVEC" sounds.
  • Can be difficult for new producers to master.
  • Constantly produces metallic results if not handled properly.
  • XSY related;
    • SOFT EVEC and HARD EVEC present the most potential problematic XSY combination of the package. Depending on which colour is used depends on the impact of both vocals. At their worst, both vocals produce metallic sounds, which result in a low quality XSY result with a great deal of metallic noise.
    • HARD and HARD EVEC are at their core the same vocal, depending on the colour used the vocals make produce little impact on XSY.
Voicebank sample
Luka hard evec sample

MEGURINE LUKA V4X HARD singing "Sarishonohara" with E.V.E.C.


Product Information
Package details
"Japanese DB SOFT_EVEC allows access to EVEC within Piapro Studio. It can be switched out in place "SOFT" to allow access to EVEC within a song.
Vocal traits as noted:
  • According to Crypton, by combining the Voice Color function of E.V.E.C together, it’s possible to express the fragile sound of breathing that is suited for singing a ballad.
  • All 9 "colours" have loose or soft pronunciation.
  • Allows for an array of tones full of expression.
Cross-Synthesis notes:
  • XSY related;
    • The most natural XSY result is between SOFT and SOFT EVEC.
    • The most variations between two vocals for XSY within this package are caused by mixing certain HARD EVEC and SOFT EVEC colours.
    • XSY between SOFT and SOFT EVEC are at their core the same vocal and produces very little differences between them at times. Compared to HARD and HARD EVEC, SOFT and SOFT EVEC have even less variation between them, making XSY between the two at times so subtle that it may not even be worth XSY the pair.
Phonetic notes as noted:
  • Allows for delicate editing of phonetics
Software issues as noted:
  • Compared to "HARD EVEC", "SOFT EVEC" tends to have much less differences between each tone.
  • Can be difficult for new producers to master.
Voicebank sample
Luka soft evec sample

MEGURINE LUKA V4X Soft singing "Sarishonohara" with E.V.E.C.


ENGLISH DBEdit
Product Information
Vocal traits as noted:
  • Improved English qualities compared to her VOCALOID2 version.
  • The overall voice range has been lowered so she no longer reaches the same high notes as before. In addition, there is a noticeable shrinkage within the overall range itself.
Cross-Synthesis notes:
  • "Straight" and English "Soft" can be cross synthesized (XSY) together, offering the first example of cross synthesized English vocals for the software.
    • the package offers the equivalent of 2 additional voicebanks achievable via XSY. The total tone variation offered by the package comes to a theoretical 4 voicebanks in total.
Phonetic notes as noted:
  • Triphones Added
Software issues as noted:
  • Is not set up to work with "E.V.E.C" like the Japanese vocals are.
  • The overall voicebank still has a notorious Japanese accent.
  • Both voices find "growl" (GWL) limited as a feature in terms of usefulness.
  • The English package is a completely re-edited voicebank as it is not a direct update of her original V2 vocal, making it different compared to the first release.
  • Due to the difference in the vocal range, while she covers the same genres of music, her English vocals are not a match for her Japanese vocals' vocal range. This makes it harder to hide changes of voicebank between the two languages.


Product Information
Optimum
  Tempo: 50-170BPM  Range: G#2-C4
Package details
"English DB STRAIGHT" is characterized by its "smooth voice quality with a natural pronunciation", according to her site. This vocal has the tone of the VOCALOID2 original English vocal.
Vocal traits as noted:
  • This vocal has been greatly improved over the VOCALOID2 version.
  • On higher notes, produces a slight metallic sound.
  • Is intended to maintain the same timbre as the original V2 voicebank, with much better English accuracy.
  • Improved English.
  • Despite being based on the previous VOCALOID2 version, the overall vocal range is different to the original, and she now covers a different range.
  • Has a larger tempo range than the original VOCALOID2 version, allowing her to cover more genres of music.
Phonetic notes as noted:
  • Tends to produce "r" sounds strongly.
  • Issues with her notorious Japanese accent can notably leave her sounding "strange" to native English speakers. Though this is common in non-native vocals, this is a notorious problem compared to previous voicebanks of the same kind.
  • Wrong pronunciation of [@r], [I] and [@U] sound; V2 Luka does not have this issue.
Software issues as noted:
  • Contains several audio warp noises due to the way recordings were created.
  • Unlike the previous VOCALOID2 version, the vocal range does not match the Japanese vocal range. This makes switching languages mid-song more noticeable as tones may not match. This also means that the voice does not cover the same music genres as the Japanese voicebanks, forcing producers to edit more delicately when trying to combine both languages in the same song.
Voicebank sample
Luka V4X ENG Straight

MEGURINE LUKA V4X ENGLISH Straight


Product Information
Optimum
  Tempo: 50-170BPM  Range: G#2-C4
Package details
"English DB SOFT" is characterized by its "soft and gentle voice", according to her site.
Vocal traits as noted:
  • Is a more expressive voice compared to the "Straight" vocal.
  • This is the first released variant English vocal for Vocaloid.
Cross-Synthesis notes:
  • Even though both voicebanks are intended to be different, some users noted that Soft is pretty similar to Straight with few differences between them, thus limiting the capabilities of the cross synthesis function in the process. [62]
Phonetic notes as noted:
  • Tends to pronounce "r" sounds strongly.
  • Just as with the "Straight" vocal, Luka's accent can leave her sounding "strange" to native speakers. Though this is a common trait of non-native vocals, this is a noticeable problem with this vocal in particular.
  • Wrong pronunciation of [@r], [I] and [@U] sound; V2 Luka does not have this issue.
Software issues as noted:
  • Soft has limited English capabilities compared to Straight.
  • This voicebank also suffers the same problem of having no matching Japanese voicebank, so switching languages mid-song can be noticeable at times.
Voicebank sample
Luka V4X Eng Soft

MEGURINE LUKA V4X ENGLISH Soft



ReferencesEdit

  1. https://twitter.com/vocaloid_cv_cfm/status/21456461964
  2. https://twitter.com/vocaloid_cv_cfm/status/13390702398410752
  3. https://twitter.com/vocaloid_cv_cfm/status/13405186252865536
  4. [1] Tweet - 10 Dec via web
  5. http://www.jvcmusic.co.jp/-/Artist/A023770.html
  6. http://vocaloid.blog120.fc2.com/blog-entry-10302.html
  7. https://twitter.com/vocaloid_cv_cfm/status/87201337485434883.
  8. https://twitter.com/vocaloid_cv_cfm/status/90938391134351360
  9. https://twitter.com/vocaloid_cv_cfm/status/142245370280423424
  10. http://twitter.com/vocaloid_cv_cfm/status/206234716565807105
  11. https://twitter.com/itohh/status/287765483644649474
  12. https://twitter.com/vocaloid_cv_cfm/status/405510849445367809
  13. Wat talking about Luka
  14. https://twitter.com/vocaloid_cv_cfm/status/416370605030522880
  15. https://twitter.com/vocaloid_cv_cfm/status/416065323867963393
  16. https://twitter.com/vocaloid_cv_cfm/status/418042424556937217
  17. https://twitter.com/vocaloid_cv_cfm/status/418356438872756224
  18. https://twitter.com/vocaloid_cv_cfm/status/419055375489323008
  19. https://twitter.com/vocaloid_cv_cfm/status/419055375489323008
  20. Talking about moving back to Luka
  21. https://twitter.com/vocaloid_cv_cfm/status/428799682471424000
  22. https://twitter.com/vocaloid_cv_cfm/status/428804304103673856
  23. https://twitter.com/vocaloid_cv_cfm/status/428814045462802432
  24. https://twitter.com/vocaloid_cv_cfm/status/428853408531902464
  25. https://twitter.com/vocaloid_cv_cfm/status/428855060924076033
  26. https://twitter.com/vocaloid_cv_cfm/status/429136506620362752
  27. https://twitter.com/vocaloid_cv_cfm/status/429143640275832832
  28. https://twitter.com/vocaloid_cv_cfm/status/429622255287427072
  29. https://twitter.com/vocaloid_cv_cfm/status/429912925893976065
  30. https://twitter.com/vocaloid_cv_cfm/status/430910018267783168
  31. https://twitter.com/vocaloid_cv_cfm/status/430911311774375936
  32. https://twitter.com/vocaloid_cv_cfm/status/430911555199184896
  33. https://twitter.com/Julia320/status/487484852283797504
  34. https://twitter.com/vocaloid_cv_cfm/status/489250775005003777
  35. https://twitter.com/vocaloid_cv_cfm/statuses/503087021317816321
  36. https://twitter.com/vocaloid_cv_cfm/statuses/503437985547689984
  37. https://twitter.com/vocaloid_cv_cfm/status/505059180210708480
  38. https://twitter.com/vocaloid_cv_cfm/status/505537577592446976
  39. https://twitter.com/vocaloid_cv_cfm/status/510491638930497536
  40. https://twitter.com/Sonianjeriku/status/510501758700118016
  41. Miku Expo News
  42. https://www.facebook.com/video.php?v=10154711720175637
  43. https://twitter.com/vocaloid_cv_cfm/status/520402956873527296/photo/1
  44. PowerFX talks about V4 and reactions on "new Luka"
  45. https://twitter.com/vocaloid_cv_cfm/status/528459816109223936
  46. http://sonicwire.com/product/vocaloid/special/lukav3
  47. https://twitter.com/vocaloid_cv_cfm/status/533221137149206529
  48. https://twitter.com/vocaloid_cv_cfm/status/533655033460428801
  49. https://twitter.com/vocaloid_cv_cfm/status/533656058414104576
  50. https://twitter.com/vocaloid_cv_cfm/status/533660196631887872
  51. https://twitter.com/vocaloid_cv_cfm/status/548708731299450881
  52. https://twitter.com/vocaloid_cv_cfm/status/542247925280030720
  53. http://blog.sonicwire.com/2015/01/luka150109.html
  54. https://twitter.com/vocaloid_cv_cfm/status/560846367782735872
  55. https://twitter.com/vocaloid_cv_cfm/status/560966722551693316
  56. http://www.vocaloidotaku.net/index.php?/topic/53080-lukav4x/page__view__findpost__p__1233646
  57. http://www.bigfishaudio.com/detail.html?1;16;1:::::::::::luka:528593
  58. link
  59. link
  60. Luka
  61. link
  62. http://www.vocaloidotaku.net/index.php?/topic/58740-lukav4x/page__view__findpost__p__1246839

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