[Rei Asakura's Great Enma Book] "The era is active speaker" Sony and Genelec challenge.IFA expected near future audio -AV Watch

The first earphone "EAH-TZ700" in the new Technics brand

Asakura: Continuing from the last time, let's put the IFA summary in 2019.This time, there was a big change in audio, and it was a story that I was able to discover a new flow.

The first thing I focused on in the product was the Technics high-end whafone "EAH-TZ700".Until now, Technics booths were basically pursuing sound reproduction in spatial sound.In other words, it focused on making sounds from the speakers.This time, I was on a trend or made a high -end whafone with a high price range.The release date in Japan is November 15, and the price is 120,000 yen.

新生Technicsブランドで初となるイヤフォン「EAH-TZ700」。日本では11月15日発売で、価格は12万円

――Inote events such as the Headphone Festival in recent years, I have been to the Panasonic booth and have been saying, "Is Technics earphones yet?"Technics now has a specialty product than before, so this time, I think that something that is satisfactory has finally come out.

Asakura: That expectation will not be disappointed.When I actually heard the sound, this was quite wonderful.Although the resolution is very high, it is not only that, but also has a cohesive overall music.

The special point of this earphone is the quality of the bass.This is outstanding as an earphone bass.

First of all, the bass reproducibility is very good.Although it is a variety of headphones bass, I felt that this product was particularly difficult to come out with headphones.This bass is fast, rising, rising, and falling down, very fulfilling and sharp, yet has a rich and rich sound.Generally, the rich sounds are bad, and if the sharpness is good, the scale tends to be poor, but the two that are not lined up are established at the same time.The time axis is supported with bass, and the sound progress is clear.I really felt a musical bass.

According to the story, the point is that the magnetic fluid is used for the material.This is a magnetic -shaped oil -like liquid, which is filled between voice coils and magnets.

The benefit is to play the role of a damper.General (dynamic) earphones do not have a damper because the driver parts are small.In the past, it has ignored physical effects, and the linearity has been affected by accident.This time, with the viscous liquid there, the wobble driver moves rigidly and succeeded in relocating and rigid.As a result, the straight line movement of the input / output was realized, and the distortion was reduced, that is, the diaphragm reacting accurately to the input signal and it became possible to move it.

This technology is not for large speaker units, but for small earphones drivers.Technics has been conducting research and development of low -distortion and wide bandwidth drivers using magnetic fluids for several years.Not only the driver installed in this product, but also Technics (Panasonic) originally made.According to Mr. Iya, a technical CTO (technical manager), the edge uses softer and supple materials than before, and the low frequency frequency movement has been lineared.

――The price of over 100,000 yen is difficult to reach out, but it seems that it will be widely applied to Panasonic earphones.

磁性流体という磁気を帯びたオイルを充填することで、繊細なイヤフォンのドライビングで適度なダンピング性能を持たせることに成功したリニアリティが高く、それでいて芳醇な低音の響きがあるという。井谷哲也氏（画像右）曰く、EAH-TZ700は「イヤフォンで初めて聴いた、お腹に響く低音」

Asakura: Another topic of Panasonic.As I have said before, the company has received music guidance from Christoph Franque, a Tonemeister of Berlin Philharmonic.Mr. Franque, who has been recording and commercialized, has learned the basics of the Berlin Philharmonic style, such as the concept of music by the world's highest prestigious Berlin Philharmonic, how to make orchestras sounds.Until now, "Berlin Philthur Mode" was installed as a television audio function as a reflection of the results, but this Berlin Philthur mode in TV has begun to be introduced into a full -fledged audio.I did it.First, it will be introduced to the Panasonic brand sound bar instead of technics, and it will be a firmware update to the conventional product.

This is exactly one product in collaboration between Panasonic and the Berlin Philharmonic.The sound measurement is measured in the large hall of "Philharmonie" in Berlin, the home of the orchestra, the data is folded into the software, and the sound of the Philharmonic is heard in the surround.

In Philharmonic, Panasonic's 4K system has been completed, and at the shooting and recording level, it is included in 4K+high resolution.In the Sa Simon Rattle era, the Berlin Philharmonic has been established to actively develop its own media using these equipment.

The best one is the online concert distribution service "Digital Concert Hall (DCH)".Although the 4K+high -resolution transmission experiment is progressing, the sound specifications at the moment are 48kHz / 24bit, unfortunately 320 kbps AAC compression is transmitted.The Berlin Phil mode was planned with the pleasure of improving the sound of this DCH.

It is a general use that receives video and audio with the DCH app installed on Panasonic TV, and flows the audio to the sound bar.The sound of the Berlin Phil mode simulates the front row of Philharmonic block B.The location is around the middle of the first floor of the pentagon hall.There is another expensive block A in terms of ticket prices, but this area is the closest to the stage, and the sound will fly up openly as a feature of the vineyard type hall.The tip of this flying sound is around the front of the block B.

―― Fortunately, I listen to the sounds of various places from A to E, but when I listen to the front row of block A, the distance to the player is short, so it seems like a pine fats fly.I experienced "Cello Entrance".But if you listen to the harmony of the whole music, block B.The distance to the stage is moderate, and there are just the right walls on the back, so I feel the most beautiful.

“3大オーケストラ”に数えられるベルリン・フィルとの協業では、サウンドバーの底力を引き出す「ベルリン・フィルモード」を開発。コンサート配信サービス「デジタル・コンサートホール（DCH）」のサウンドをベルリンの本拠地「Philharmonie（フィルハーモニー）」大ホール（Grosser saal）に近づける音質モードカラヤンが設計に参加した世界初のヴィンヤード式コンサートホール、フィルハーモニー。大ホールの客席はAからKまでのブロック分けがなされており、眺めも音響特性も様々。ホールを象る黄金の五角形は、楽団のシンボルマークにも採用されている

Asakura: As I heard this time, the original sound quality of the sound bar is not so much.However, when the mode was turned on, the place where the distortion was a bit distorted became smooth and spread.It is not a flashy spread, but it improves the texture quietly.It is never the sound panoramic spreading with beyon.

According to the story, the engineer side prepared a lot of options, such as "Mode 1, 2, 3", and proposed a deeper sound with a deeper feeling.However, when I asked Mr. Franke to hear it, it seemed that it was too much.

――If you asked for an easy -to -understand stimulus after listening, you would probably have released a decorative “rich surround”.I strongly feel the music philosophy of the Berlin Philharmonic, which is approaching the sound and music spirit when Franke has suppressed it.

Asakura: The idea of Franke's sound, which I have met and heard so far, seems to be "faithful to music, do not color it" and "Give the original sound itself".think.The Berlin Phil mode is by no means a remarkable and terrible effect like Dolby Atmos.However, I was impressed that the spread was improved and the texture improved.However, the basic performance of the speaker is where you want to order.Such a truly approaching attitude is the basic part of the basics, and the sound bar will be more powerful as possible.

I guess, "If you put it in the Hi-Fi component such as a player," it is not so easy.These functions cannot guarantee the sound unless the sound signal is converted into a physical exercise.Yamaha had a mode of famous venues such as "Mujik Ferrine Zar" and "Hercules Zar" in the early DSP.However, I remember that these were a hole tone, as if they were listening to the response in the bath.There is one logical contradiction here.In other words, the hole tone at the recording location is already included in the sound source itself, so it will emphasize it again.

This time does not pursue that much.The sound source other than the DCH can be used, but the sound is made with a DCH premise.It is good to be able to listen to 2ch with sound and hear it with a natural sound with a sense of spread.Let's pay attention as a new attempt in collaboration between them.