Theoretically, the sound source must be PC! The reasons are as follows: 1. You can play audio files with more formats and higher specifications on PCHIFI system. As we all know, the CD was invented in the early 1980s. At that time, due to the limitation of technology and the fact that CD can basically cover the hearing range of human ears when playing, the two inventors set the specification of CD as 16 bit 44. 1K ... but with the progress of the times, people's requirements for sound quality are getting higher and higher. Although CD can theoretically reproduce the high frequency of 22.05k, it can only reproduce this frequency. For the original analog signal, the sampling rate of 44 100 per second is still too small, which directly indicates that the number is heavy and the details are lost. The relationship between sampling rate and analog waveform is just like the relationship between regular polygon and circle. A regular polygon can never be equal to a circle, but it can be closer to the circle by increasing the number of sides. Therefore, although it is impossible for us to collect a complete analog signal by increasing the sampling rate to 100%, we can restore the analog signal more closely or truly. And 16bit is doomed that the highest theoretical dynamic of CD can only reach 96db. Attention is a theory, but it's almost there. Now the strength of a symphony can even reach 1 10db, so putting it on a CD means that the sum is compressed. For the above reasons, after the invention of CD, many manufacturers are constantly looking for ways to improve the sound quality of CD records, such as HDCD and XRCD. Although these things are indeed better than ordinary CDs, they still can't achieve a qualitative leap. Since 1990s, people began to use high-bit and high-sampling format in music production, and a new generation of codec chips was born. But the specifications of the CD have been decided. No matter what format the original sound source is, it must be compressed into 16bit44. 1k before it can be engraved. In other words, there is so much information stored on the CD, no matter what up-conversion technology is adopted by modern advanced CD players. Fortunately, several major audio giants saw the shortage of CDs and began to launch DVD-AUDIO and SACD in the late 1990s. There is no denying that the information content of these two kinds of records has reached the limit of modern audio, but the records are too expensive and the high-quality record players are too expensive, which makes DVD-AUDIO and SACD still not popular today after 10 years. Let's take a look at PCHIFI again. As long as a suitable sound card is added, the playback of 24-bit 192 K PCM audio files is simply naive. As long as the sound card supports it, it is not difficult to play audio in DSD format. As for playing CDs, not to mention everything that is backward compatible. Secondly, PCHIFI is closer to the performance of native music products than the traditional digital sound source system. At present, high-end sound cards are basically designed for music production, and many records are also recorded, monitored and mixed with these sound cards. If the same or similar devices are used for playback, it is obviously better to restore the original appearance of the music works. Some enthusiasts despise thousands of sound cards, saying that today's fever-level records are made through hundreds of thousands of PROTOOLSHD. Well, it is undeniable that PROTOOLSHD is the top digital recording and mixing system in the world today. But what these enthusiasts don't know is that PROTOOLSHD is also based on computer platform! That is to say, the DSP card of PROTOOLSHD needs to be plugged into the PCI or PCIE slot in the computer. The computers mentioned here include PC and MAC, and I can definitely say that these computers are no different from our home computers. Therefore, it is ignorant to say that p hifi system is not as good as CD player without carefully studying p hifi system, and even people who despise p hifi are ignorant. Let me take a screenshot of the Chinese manual of PROTOOLSHD to prove that the world's top digital music production system works under WINDOWSXP. Third, PCHIFI is closer to the concept of HI-FI. High fidelity means high fidelity. As for the concept of hi-fi in audio, I have emphasized in many forums that hi-fi is not the effect of "fidelity" to completely real musical instruments or human voices directly heard, because in the process of music production, the acoustic signals picked up by microphones are first converted into electrical signals, which is not true, because different microphones have different timbres, and of course, there are distortions. The most untrue thing is that the mixer adds different effects to audio materials. Such as EQ, compression, reverberation, etc. And the human voice has to be corrected in pitch and rhythm, and finally mixed into a finished file. We should treat it as a work of art and appreciate it as an art, instead of getting a completely real feeling from it. It's like a PS art photo. We need to get rid of the pimples on people's faces and carefully handle the colors and light to get a beautiful work. Of course, beautification is carried out on the basis of truth, and there are certain limits. The beautification of male singers' voices can't make people sound like women, nor can art photos. The purpose of processing is to be more beautiful, not to make people PS into dogs. If the essence changes, it is not a good work of art, of course, these are all made by record companies. What we need to do is to restore the information in the record as much as possible. If our playback device can restore the effect obtained when the main processor finally determines that the finished music processing is completely completed, it will be completely fidelity. This is almost impossible for enthusiasts, because the equipment is different and the environment is different, but PCHIFI is at least more qualified to approach. 1, the current high-end sound cards are all designed for music production, and almost all of them have one thing in common: less sound dyeing and high resolution, which can better show the true face of music works. 2. Music itself is produced with high bit and high sampling when it is produced. PCHIFI can play this master WAV file directly, and the CD must be compressed and engraved before it can be played. It is obvious which is more realistic. Although I don't deny that various CD players, amplifiers, and even wires may be more pleasing to the individual, at least for the original documents, they are further away from the concept of HIFI. Fourthly, PCHIFI is more convenient to manage and play audio files. It is very convenient to choose songs, store, manage and classify songs by playing them on PCHIFI. Original paste location: /viewthread.php? tid=2472 12。 Extra=page%3D 1 The following is my own experience: 1. Sound card. I have used ALC889 and other series \ VIA VT 1828S\CMI8787 (serenade). The quality of these sound cards is similar, and the serenade is heavily stained. Now I use VT65438. . 2.USB is external, and the upper transmission limit of USB2.0 is 16 and 44. 1K, just like CD data. If the sound quality is better than CD, the sound quality will definitely decrease during transmission. 3. As for the power supply and low noise of the computer mainframe, I suggest that it is the socket grounding wire to eliminate the static electricity that may or will be generated in the chassis. The effect is very good. My ear is attached to the bookcase (8 Ω) and there is no low noise at all. 4. when pushing the bookcase, you can consider using class t power amplifier. Buying the latest and best is not very expensive, and the effect is very good. 5. When buying a stereo, you should analyze more data, such as the frequency response curve of the speaker, the signal-to-noise ratio of the power amplifier, and the dynamic limit. . Don't listen to people talking about hearing, what does it mean to be cold and warm ... These adjectives are not used to describe the sound, and they are fools to say that they have been listening. 6. The listening environment is very important! If possible, the environment should be closed and quiet. The ambient noise during the day is generally 40-60 decibels (indoor shortcut). If it is 40 decibels, the sound quality of playing a CD can only feel the dynamics of 50 decibels at most (theoretically, the sound quality limit of a CD is 96 decibels). This is why many fans like headphones. The ambient noise of fully enclosed headphones is very low, so the dynamics of headphones are the best. 7. Speakers are better than small boxes, big speakers are better than small speakers, and many speakers are better than few speakers. Of course, the two sides of the comparison should be of equal quality and expensive to listen to. 8. The bookcase should consider that the bass is 6.5 inches, and the low-frequency 5.5 inches and 6.5 are not a heavyweight. To sum up, the traditional HIFI sound can't be compared with the current PC, compared with the sound source! CD is 16 bit 44. 1K decoding. Any integrated sound card is 24-bit 192K decoding! PCHIFI will definitely replace the traditional HIFI. Not too distant future. I think it has been gradually replaced now. In ten years, the traditional CD player HIFI will disappear. ! Just saying, it's a little messy. I hope it helps you.