What is lossless sound quality Part 3
Although the sense of sound can be quantified through data, it has always been a subjective awareness.
However, apart from the difference in the sense of human hearing, the quality of each piece of music still goes back to the original recording and after recording. production; Many years ago, Sony started promoting high-quality music. When it comes to music and sound quality equipment, the author once talked to a senior engineer at Sony about the difference high quality sound makes to the listener. At that time, the senior engineer pointed out that from the data plane, the high-quality sound format is actually a large extension of high-frequency. However, if you ditch the data specs and record high-quality music with modern equipment, you’ll be able to present deeper, more realistic low-frequency dynamics.
The photo contains electronic accessories, electronics, Sony Walkman NW-WM1 series, Sony DMP-Z1, headphones
▲Although the quality of the original sound is very important, even a well-recorded 320K file with a good playback and listening device can work better than directly using a mobile phone to play a high-quality file with the included headphones
However, this is also seen from the original conditions of the radio equipment, but generally the music released to the market will not be released directly after being picked up. The original audio still needs to go through steps like re-editing, post-production. , synthesis, etc.. The music post-production process will also degrade the sound quality and involve personal preferences. If the editing is excessive, the sound quality will also be affected.
However, if the WAVE format, which is commonly used in standard digital music, is used, no matter what the result of the front recording is and how damaged it is, the music will eventually be compressed into a file with a fixed format. sampling rate, but the content will also include a large amount of inaudible information. ; As for the lossless compression of FLAC, AAC, etc., the sound psychology theory removes information that can be considered non-existent, so that the file can be simplified.
OTOTOY is mentioned in the photo, There is a sound you can’t bru-, Genre Main > Best Selling Album Best Selling EP Latest Release Featured Item Music Information Merchandise Sale IN STORE OTOTOY Academy, including web pages, multimedia, online advertising, computer programs, product
▲ The new generation of recording methods will also use the 24-bit 44.1 kHz or higher format, which can record richer details (Image taken from: Ototoy)
Before we go on to mention high-quality sound, let’s talk about the changes related to recording in recent years; With the improvement of digital recording technology in recent years, the front recording project has also begun to introduce high-quality sound recording to exceed the traditional CD sound quality 16-bit 44.1kHz sampling above 24-bit 44.1 kHz The format is used like the original master tape, although it can only be increased from 16-bit to 24-bit, but the increased amount of data per second means there is more information. If the subsequent sampling rate is increased to 96 bits, the PCM encoded sound curve of the sawtooth waveform can be improved. Close to analog waveforms.
For example, the Japanese digital music platform Ototoy will mark such music based on high-quality recordings with the HQD symbol. Before the term Hi-Res Audio, this type of 24-bit audio based on high-quality recordings and not re-pressed into CD-quality sound. The file is usually completed with a digital mastering level sound quality file, and has been in practice for many years before the appearance of the hi-res level mark. Incidentally, SACDs recorded in 1-bit format and presented in DSD format that is close to an analog curve can also be considered as mastering. It is a kind of high-quality sound quality, but strictly speaking, since the DSD format does not have the editing function, in fact, the DSD file is still converted as a high-density PCM file.
9:41, all colors are mentioned in the photo, including Apple Music Lossless Android, Lossless Compression, Apple Music, Dolby Atmos, 3D Sound
▲Currently, high-resolution music is divided into analog mastering transcription, CD-quality mastering scaling, and high-quality native sound mastering, among which the scaling effect is still the worst
