HQCD is a new product with higher quality than ordinary CDs. It was developed and patented by Japan Memory-Tech Co., Ltd., Japan's largest optical disc manufacturer.
Product advantages
Compared with ordinary CDs, HQCD’s innovation and superiority are reflected in three aspects:
HQCD’s discs are made of liquid crystal screens. Polycarbonate (Polycarbonate) injection molding, the disc reflective film uses a silver alloy reflective coating that is more heat-resistant and light-resistant than ordinary aluminum, which significantly improves the resolution, transparency and clarity of the music signal, resulting in a more delicate sound. convey. Make the audience feel like they are there. You can enjoy the experience closest to the sound source playback.
2． As the name suggests, HQCD is a new product with higher quality than ordinary CDs. It was developed and patented by Memory Tech Co., Ltd., Japan's largest optical disc manufacturer. HQCD's discs are made of raw materials used to make light guide plates for LCD screens, and the injection molding is more precise, allowing for more accurate recording of digital signals. At the same time, its disc surface coating is made of silver alloy, which greatly improves the reflectivity of the disc and makes the sound quality closer to the original sound.
In addition, the mastering processing of this HQCD product adopts the K2HD mastering processing technology of Japan’s jvc Aoyama Studio (K2High Definition codec technology). It is generally believed that the upper limit of the sound frequency that the human ear can hear is 20KHz, so when making a CD, audio signals with frequencies greater than 20KHz are first filtered out. In addition, the CD disk capacity is only 700MB, so the CD was set as a compromise between capacity and sound quality, using audio specifications that were quantized to 16 bits and had a sampling frequency of less than 20KHz. However, in recent years, studies have found that humans can actually perceive vibrations far higher than 20KHz through bones, skin and even hair. Therefore, more and more experts believe that the frequency bandwidth of 20KHz is not enough, and recording and playback without high-frequency vibration will have a negative impact on the performance of timbre and sound quality. "The use of K2HD mastering technology is to integrate the waveform components of the original master's wide frequency band of up to 100KHz and 24-bit high-resolution audio information into the waveform of the CD recorded information, so that the original master can be better utilized.
Due to the reduction of distortion during the digital processing of information, the audio signal output by the 24K gold disc is very close to the input analog signal, and the retransmission bandwidth reaches 100KHz, which is higher than that of the ordinary CD format. 5 times, and the dynamic range has also been increased from 98DB of ordinary CDs to 120DB.
After rigorous testing by HI-HND level audiophile monitors, we can say without a doubt: it is. To date, any CD has clearly and faithfully described the original sound in a vivid and clear manner. This is also achieved because it uses a magneto-optical disk with stability and 24-bit recording capability in the processing process as an audio recording carrier sent to the production process. In order to successfully provide CDs with better sound quality, its emergence is a sharp challenge and subversion to perfect digital audio production. It aims to pursue the representative technical achievements of reproducing original sound and is a collection of high-end compression technology. Super?Audio?Check?CD?!
In China, Shanghai United Optical Disc Co., Ltd. has obtained the production technology and patent of HQCD, making this product a masterpiece of international cutting-edge digital recording technology and strict production supervision. A high-end music product has entered the Chinese market.
The goal of 24K German HQCD platinum discs is to achieve a higher level of sound quality when converting master audio to CD, from master tape engraving to CD coating. It is different from the traditional method. The first is "master disc 1:1 simultaneous direct burning", which burns the digital audio files (CD? IMAGE) recorded in the hard disk directly to the glass CD master disc without burning the CD-R. , then transferred to the production of metal printing plates, with the goal of producing international records. On the one hand, it promoted Chinese records to overseas markets, on the other hand, it introduced Western technology and music, and took the lead among its domestic peers.
This series of CDs has neither a digital taste nor an artificial taste. It is the analog soul that is closest to real nature. It should be the highest realm pursued in recording, and it is also the reason why feverishness is justified.