Importance of Video Samplerate


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Importance of Video Samplerate

Importance of Video Samplerate
Importance of Video Samplerate
Importance of Video Samplerate
Importance of Video Samplerate

Let’s talk about the importance of video samplerate. You might be wondering what this technical term really means and why it matters. Well, think of it as the secret ingredient that makes your favorite recipe taste just right. Just as a pinch of salt can transform a dish, the samplerate in a video plays a crucial role in delivering high-quality audio. Imagine watching a movie with poor audio quality—it’s like trying to enjoy a gourmet meal with bland flavors. The samplerate ensures that you savor every note, word, and sound in your video, enhancing your overall viewing experience.

Consider samplerate as the rhythm of a song. You’ve probably tapped your foot to a catchy beat before, right? Well, the samplerate sets the tempo for the audio in your video. Too slow, and it feels like a drag; too fast, and it becomes chaotic. Just like a well-paced song, the right samplerate ensures that the audio elements in your video sync perfectly, creating a harmonious blend of visuals and sound that engages your senses.

Another way to understand the importance of video samplerate is by comparing it to a jigsaw puzzle. Imagine putting together a puzzle, and some pieces don’t quite fit—it’s frustrating and ruins the picture. Similarly, a mismatched samplerate can result in audio that doesn’t align with the video, creating a disjointed and unpleasant viewing experience. When the samplerate matches, it’s like every puzzle piece fitting perfectly, revealing a beautiful image that captivates your attention.

Why Does Video Samplerate Affect Audio Quality?

  • Let’s dive deeper into why video samplerate matters for audio quality. Think of it as a recipe for your favorite dessert. The ingredients need to be precisely measured, or the taste won’t be right. Similarly, if the samplerate is off in a video, it affects how audio elements are “measured” and presented to your ears, potentially distorting the sound.
  • Imagine you’re in a quiet room, listening to a friend tell a story. If they suddenly start whispering or shouting, it disrupts the flow and understanding of the narrative. In a video, the samplerate ensures that the audio remains consistent, preventing sudden shifts in volume or clarity that could distract or confuse the viewer.
  • Consider a symphony orchestra where each instrument plays its part in harmony. If one instrument falls out of tune or plays at a different tempo, it can create dissonance in the music. Similarly, in a video, a mismatched samplerate can introduce dissonance in the audio, causing discomfort for the audience.

Understanding the importance of video samplerate is like mastering the art of cooking. Just as a chef carefully selects the right ingredients and techniques to create a delightful dish, video creators must pay attention to samplerate to ensure that every audio element in their videos harmonizes, delivering an enjoyable and immersive viewer experience.

Optimizing Video Samplerate for Professional Results

Now, let’s explore how to optimize video samplerate for professional-grade results. Think of this as the final touch that transforms an ordinary dish into a gourmet masterpiece. In the world of video production, achieving the best samplerate ensures that your audio is crisp, clear, and captivating.

Imagine you’re a photographer capturing a breathtaking landscape. To do justice to the scene, you carefully select the right lens, adjust the exposure, and frame the shot perfectly. In video production, optimizing samplerate is just as critical—it’s like choosing the ideal camera settings to capture the essence of your subject. It ensures that your audio is captured with precision, allowing viewers to hear every detail, whether it’s the rustling leaves in a forest or the gentle whisper of a character’s dialogue.

Consider samplerate as the conductor of an orchestra. The conductor guides each musician to play their part at the right tempo and intensity, resulting in a harmonious performance. In video production, optimizing the samplerate is akin to being the conductor of your audio elements. It ensures that every sound, from the background music to the actors’ voices, blends seamlessly to create a symphony of audio that captivates your audience.

Think of optimizing samplerate as the final brushstroke on a masterpiece painting. Each brushstroke adds depth and detail to the artwork, making it come alive. Similarly, in video production, the right samplerate adds the finishing touch to your audio, making it vibrant and engaging. It’s the difference between a video that feels amateur and one that exudes professionalism.

Common Questions About Video Samplerate

    • 1. What happens if the video samplerate doesn’t match the audio samplerate?

If the video samplerate doesn’t match the audio samplerate, you can encounter synchronization issues, resulting in audio that doesn’t align with the video properly. This mismatch can lead to distorted sound and a jarring viewing experience.

    • 2. How can I check the samplerate of a video?

You can check the samplerate of a video using various software tools or video editing programs. Simply import the video, and the samplerate information should be visible in the video’s properties or settings.

    • 3. Is a higher samplerate always better for video quality?

Not necessarily. While a higher samplerate can capture more detail, it also results in larger file sizes. The choice of samplerate depends on your specific needs and the platform where the video will be played. It’s important to strike a balance between audio quality and file size.

In the world of video production, attention to detail, especially when it comes to samplerate, can make all the difference in delivering a captivating and professional viewer experience. Just as a chef refines their culinary skills to create exquisite dishes, mastering the art of optimizing samplerate elevates your video content to a new level of excellence.

Video Samplerate and Audio Bit Depth: The Dynamic Duo

Let’s explore the dynamic duo of video samplerate and audio bit depth—a partnership that can truly transform your audiovisual creations. Think of them as the Batman and Robin of the audio world, working together to ensure audio quality that’s nothing short of heroic.

Consider audio bit depth as the resolution of a photograph. Just as a high-resolution image captures more detail, a higher bit depth in audio allows for a broader range of tones and subtleties to be recorded. When combined with an appropriate video samplerate, it’s like having a high-definition canvas for your audio, allowing you to paint with a richer palette of sounds and nuances.

Imagine you’re a filmmaker crafting a suspenseful scene. The audio bit depth and video samplerate are your tools for building tension. A deep audio bit depth captures the quiet whispers and the thunderous roars, while the video samplerate sets the pace, ensuring that every heartbeat and every footstep are in perfect sync with the visuals. It’s this synchronization that keeps viewers on the edge of their seats, fully immersed in the story.

Think of video samplerate and audio bit depth as the architects of a magnificent building. The samplerate determines the rhythm and tempo of the construction, while the bit depth defines the intricate details and textures of the structure. Together, they create an audiovisual masterpiece that captivates the senses.

The Future of Video Samplerate: Innovations and Trends

  • As technology continues to advance, we can expect innovations in video samplerate that push the boundaries of audio quality. Imagine a world where videos offer audio experiences so immersive that you feel like you’re part of the story. These innovations will rely on higher samplerates and bit depths to deliver audio that’s as realistic as the world around us.
  • With the rise of virtual reality and augmented reality, video samplerate will play a pivotal role in creating immersive environments. Picture yourself in a virtual world where every sound is so lifelike that you forget you’re wearing a headset. This level of immersion is achievable through advancements in samplerate technology.
  • As content creators seek to differentiate themselves in a crowded digital landscape, the importance of video samplerate will become even more pronounced. Viewers will gravitate toward content that offers superior audio quality, making samplerate optimization a key competitive advantage.

Just as the world of audio and video production continues to evolve, so does the significance of video samplerate. It’s not just a technical detail—it’s the heartbeat of audiovisual storytelling. As we embrace these innovations and trends, we’re ushering in an era where video samplerate isn’t just important; it’s transformative.

Mastering Video Samplerate for Cinematic Sound

Now, let’s delve into the art of mastering video samplerate for cinematic sound. Picture yourself in a movie theater, surrounded by the mesmerizing sounds of a blockbuster film. The thunderous explosions, the delicate whispers, and the sweeping orchestral scores—all brought to life by impeccable audio quality.

Consider video samplerate as the conductor of this cinematic symphony. It sets the tempo, ensuring that every audio element is in perfect harmony with the visuals. Just as a skilled conductor guides an orchestra to create an unforgettable performance, mastering video samplerate elevates your videos to cinematic heights.

Imagine you’re a director crafting a pivotal scene in your movie. The dialogue between the characters is crucial, and every word carries emotional weight. Video samplerate allows you to capture the nuances of their voices—the tremor in a nervous whisper, the intensity of a heated argument. It’s these subtleties that make the scene resonate with the audience, drawing them deeper into the story.

  • Let’s take a closer look at the technical aspects of mastering video samplerate. Think of it as tuning a musical instrument. Just as a musician tunes their instrument to achieve the perfect pitch, video creators must select the appropriate samplerate to achieve the desired audio quality. This involves considering factors like the source of the audio and the platform where the video will be played.
  • Consider video samplerate as the frame rate in filmmaking. While the frame rate determines the smoothness of motion, the samplerate dictates the clarity and fidelity of sound. Imagine watching a movie with stunning visuals but muffled audio—it’s a jarring experience. Mastering samplerate ensures that your videos offer a complete sensory experience.
  • Now, think of video samplerate as the brush strokes in a painting. Each brush stroke adds depth and texture to the artwork, just as each sample in the samplerate contributes to the richness of audio. The mastery lies in selecting the right brush strokes—or samples—to create an audiovisual masterpiece.

As you embark on your journey of mastering video samplerate, remember that it’s not just a technical skill; it’s an art form. It’s the magic that makes your videos come alive, captivating your audience and immersing them in the world you’ve created.

Common Misconceptions About Video Samplerate

    • Misconception 1: Higher samplerate always means better quality.

While a higher samplerate can capture more detail, it doesn’t always equate to better quality. The choice of samplerate depends on various factors, including the content’s intended use and the capabilities of playback devices. Sometimes, a lower samplerate may suffice without sacrificing quality.

    • Misconception 2: Samplerate doesn’t affect audio clarity.

This is a common misconception. Samplerate plays a significant role in audio clarity, as it determines how accurately sound is sampled and reproduced. Mismatched samplerates can result in distorted or unclear audio.

    • Misconception 3: All audio needs a high samplerate.

Not every audio source requires a high samplerate. For example, speech recordings may not benefit significantly from extremely high samplerates. It’s essential to consider the specific needs of your project and balance audio quality with file size and compatibility.

Mastering video samplerate is a journey that combines technical expertise with artistic sensibility. Just as a chef creates a culinary masterpiece with precision and passion, video creators can craft audiovisual wonders by mastering the intricacies of samplerate. It’s a skill that transforms videos into immersive experiences, leaving a lasting impact on the audience.


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CBR vs. VBR vs ABR

CBR vs. VBR

VBR CBR ABR

ABR, CBR and VBR

ABR CBR VBR

CBR (constant bit rate) and VBR (variable bit rate)
Another parameter when compressing video with MPEG is CBR and VBR.
CBR is an abbreviation for Constant Bit Rate, which is one of the encoding methods for converting music and video to data. In the case of MPEG2 video compression, a method that always allocates a fixed number of bits. It’s CBR. On the other hand, there is also a method called Variable Bit Rate, or VBR for short, which allocates a large number of bits to the part where the movement or color changes drastically.

● VBR (variable bit rate)
MPEG generally requires more data to maintain the same image quality in fast moving/changing scenes. If the bitrate is fixed, noise will be more noticeable in a scene with a lot of movement than on a screen with little movement. To fix this, if the bitrate is set high in the scene where the motion is most intense and you normally want to give a lot of information, the amount of data will be excessive in other scenes. With VBR, the amount of data is automatically adjusted according to the scene, as much in a scene with a lot of movement that requires a lot of data, and less in the part where there is almost no movement on the screen, so the quality of the image is reduced. does not degrade. It is generally suitable for long-term recording because it saves space by minimizing file size.

● CBR (constant bit rate)
This is a method of consistently mapping the same data, regardless of how easy or difficult it is to compress the data. The advantage is that the size of the compressed file can be easily predicted (calculated) and if the upper limit of data transmission is limited, it will be of maximum quality in that frame. For example, in the case of DVD, CBR of 9.8 Mbps is the highest image quality in the DVD standard. The downside is that the sound quality and picture quality are not good (quality is not constant) for the amount of data. CBR is common for MP3s.

● ABR (average bit rate)
A type of VBR that is meaningful only when encoded. This is a method of setting the upper bound, average, and lower bound bitrates at encoding time, and encoding so that the final average bitrate is specified while observing the upper bound and lower bound. The overall quality remains the same to some extent, but the quality itself cannot be specified. The advantage is that you can reduce the amount of data while maintaining quality when the data transfer is limited to a certain extent. As an example, a DVD should be burned at an upper limit of 9.8 Mbps, and if it’s a single-sided layer, it should be stored at 4.7 GB, so you also need to specify the average rate (final file size ) .

Notes on MP3/WMA/AAC files

Notes on MP3/WMA/AAC files

CBR VBR

Playable MP3/WMA/AAC files are files with the extension <.mp3>, <.wma> or <.m4a>.

CBR VBR

This unit can play MP3/WMA/AAC files created with the following bit rates and sampling frequencies.

Sampling frequency:

8-48kHz

Transfer Rate:

8 to 320kbps

This unit recognizes up to 255 folders and 999 files per USB device.

USB supported file systems are FAT16 and FAT32.

Files with a song larger than 2 GB cannot be played.

Some MP3/WMA/AAC files cannot be played depending on the recording status and recording method. In that case, “Cannot play” is displayed for files that cannot be played.

Playback order of MP3/WMA/AAC files

(Folders that do not contain MP3/WMA/AAC files will be ignored.)

During playback, previously created folders are played in order. In the folder, the songs are played in the order of the created songs.

If you change the folder name or file name (song name) using a computer, the order may change.

The maximum number of characters that can be displayed on this machine is as follows.

Folder name: 64 characters

File name: 64 characters (including extension)

Tag Display (Title/Artist/Album):
ID3 v1.0/1.1: 30 characters
ID3 v2.2/2.3/2.4: 100 characters

For characters that cannot be displayed, “*” is displayed.

Even audio files that conform to the above standards may not play depending on the characteristics of the disc and the recording conditions.

Playback may not be possible depending on the specifications and settings of the encoding software.

Files with DRM (Digital Rights Management) cannot be played.

Audio files encoded with VBR (Variable Bit Rate) may be outside the supported bit rate range. Audio files with bit rates outside the supported range cannot be played.

What is the difference between CBR/VBR/ABR in audio/video conversion [I tried it]

What is the difference between CBR/VBR/ABR in audio/video conversion [I tried it]

Diferencia entre ABR y VBR | Differbetween

Bitrate is an index that determines the quality of compressed video and audio. Bitrate is the number of bits per second, and in general, the higher the bitrate, the higher the quality. However, the file size will increase accordingly.

CBR, VBR, UBR

The compression method is the behavior of the bitrate at the time of compression, which is the constant bitrate (CBR) method, variable bitrate (VBR), or average bitrate method (Bitrate average, ABR) . be classified.

Constant Bit Rate (CBR) Characteristics
The method of compressing with a constant bit rate is called the constant bit rate (CBR) method. Since the bitrate is fixed, it is not only easy to predict the file size after compression, but also search the playback position at high speed. However, there are problems with videos, such as the quality changing between scenes with little movement and scenes with lots of movement.

WAVE and uncompressed AIFF can also be called CBR.

advantage
It is possible to predict the file size after compression
High-speed playback position search possible
Disadvantage
Quality tends to vary

Variable Bit Rate (VBR) Features
The method of compressing by changing the bit rate is called the variable bit rate (VBR) method. In the VBR method, the bit rate is high where the data jitters sharply, and the part where the jitter is gradual is low and compressed, so the quality can be kept constant as a whole and can be compressed with higher quality than CBR. .It is said that. However, the size of the compressed file is unpredictable because the bitrate changes from moment to moment. Also, it takes more time to search for playback position than CBR .

advantage
Easy to control quality
high quality
Disadvantage
Difficult to predict the size of the compressed file
It takes time to search for the playback position
Average Bit Rate (ABR) Features
Although the bit rate is variable, the method of compressing with a constant average bit rate is called the average bit rate (average bit rate, ABR) method. Although the bitrate fluctuates with this method, the final size of the file can be predicted to some extent because it is compressed so that the average bitrate of all data is constant. This allows you to maintain quality like VBR and predict file size like CBR. However, it takes longer to process than other methods because the data must be scanned at least once before compression.

advantage
It is possible to maintain quality up to a certain point.
File size can be predicted to some extent
Disadvantage
The compression process takes time
Bitrate method of major audio compression formats
MP3
CBR, VBR
WMA
CBR, VBR
CAA
VBR, ABR
Ogg Vorbis
VBR, ABR

VBR

VBR

VBR

VBR is a compression coding method for audio and video data that changes the amount of data (bit rate) transferred per unit of time.

VBR

With VBR , it is possible to reproduce data while maintaining picture quality and sound quality by transferring at a high bit rate in places where the data changes drastically in the file to be transferred. On the contrary, if the bit rate is lowered in a monotonous place where there is little movement, the amount of transfer can be suppressed without waste and the transfer efficiency can be improved.

VBR can be used with MP3, WMA, AAC, etc. among the major file compression encoding methods and can be used with MPEG-2, etc. as video method.

Of the VBRs, the method that adjusts the amount of data to be transferred to be close to the average of the whole is called ABR (Average Bitrate). For VBR, the method where the bit rate is predetermined by a fixed value is called CBR (constant bit rate).

Audio recording bit rate

Audio recording bit rate

BitRate

One measures speed. They both show quality.

Calidad de audio: aprende sobre bits, sample rate y formatos

Bringing the musical experience to digital music items, including a career as a music producer and composer.

The terms bit depth and bit rate in digital audio are so similar that many people think they mean the same thing. It is easy to confuse them, but they are two different concepts.

You may need to know the bitrate when choosing the best audio format for your portable device or when converting to MP3 format with an audio conversion tool or other program such as iTunes.

Bit depth is important when digitizing an analog music collection or when you need the best possible sound quality.

Audio recording bit rate
Bitrate is a unit of measurement expressed in kilobits per second (Kbps), which is thousands of bits per second. Kbps is a measure of the bandwidth of data transmission equipment. Shows the amount of data flowing through the network at a given time.

For example, recording at a bit rate of 320 Kbps is processed at 320,000 bits per second.

Bit rate per second can also be expressed in other units of measurement, such as megabits per second (Mbps) or gigabit per second (Gbps), but these are 1000 Kbps per second or bit. Only used if 1000 Mbps is met.

In general, high bitrate recordings provide higher quality audio and take up more space on your computer or mobile device. However, unless you’re using high-quality headphones or speakers, you won’t notice any improvement over low-quality headphones or speakers.

For example, if you’re listening with a standard pair of headphones, you probably won’t notice the difference between a 128 Kbps file and a 320 Kbps file.

For more information on bitrates, see the additional information, including their relationship to audio compression.

bit depth
At first, bit depth may seem like a complex topic. The simplest form is a measure of how accurately a sound is represented in digital audio. The higher the bit depth, the more accurate the digital sound.

You’ve probably already come across songs sent at specific bitrates from MP3 download services or music streaming sites, but let’s not talk too much about bit depth. However, if you want to digitize your vinyl record or analog tape collection and save them as high-quality digital audio files, you need to know about bit depth.

Increasing the bit depth will give you a more detailed recording. If the bit depth is low, quiet sound will be lost.

High resolution CD and sound sound. PART 3

High resolution CD and sound sound. PART 3

HIRES

Is not it possible to feel the difference in format (difference between CD and high resolution) purely by sound?

Hi-Res

As explained above, the “suspicion that sound content in each format is different” can not dissipate from the music files sold.
(It should be the same, but it is difficult to identify unless indicated explicitly).

In that case, I have no choice but to record it and touch it myself.
If you record the same sound source in different formats and play it, you can see if you may feel that the sound is different depending on the format.
The important thing is to record the same sound source in different formats with the same configuration of the equipment.
(Do not convert the recorded file to a different format).

However, even with this method, it is possible that you are listening to the habits of the equipment, not the format difference, so you should be careful, you must compare several recording equipment in the same way to extract points in common.

Teams that can be recorded at home are the UA-3FX (~ 48kHz / 24bit) and the FA-66 (~ 192KHz / 24bit).

Since there is only one for each, it is not possible to record the same sound source in several formats at the same time.
Then we must do. ..

That’s it! We are going to bend an analog disc! (Hahaha)

In modern terms, it is a digital file of analog records. .. (Smile bitter)
If you record an analog disk with the same configuration but with different sampling frequencies and bits depths, you can achieve “almost the same sound source”, “same device settings” and “different formats”, so I tried it.
I mean, half of the reason why I bought a used FA-66 was “dubbing disc”, so I experienced it a long time ago. (Hahaha)

From this moment, we are in the world of
“Individual opinions”,
“There are individual differences in how we feel the effects” and
“Compared to our company”
.
(Given that we have not confirmed the similarity between several devices, half-talks).

I certainly felt the difference in sound when I changed the sampling frequency, but I felt the difference when I changed the depth of bits was greater than that.
Expressed in words, increasing the sampling frequency made it feel smooth and courteous, and lower it made it sound more vigorous and dense.
The depth of 24-bit bits is more realistic and I felt that the feeling of location and space became clearer.

By the way, when folding analog discs, I feel that I prefer 48 kHz / 24 bits to the highest specification of 192 kHz / 24 bits.
Therefore, at present, in the analog record file (for playback purposes in NW players, etc.), the recording is made at 48 kHz / 24 bits, and the level is not altered and saved only by adjusting the Input / output reading.
In order to move to a CD, it is recorded at 44.1 kHz / 24 bits and, after adjusting the level, etc., it becomes 16 bits.

In any case, the taste is different from the feeling of “oh! Weird” that you feel when you change from the CD version of the same song on sale to the high resolution version, and the difference is very small.

High resolution CD and sound sound. PART 2

High resolution CD and sound sound. PART 2

Hi-Res

If the song occurs with some enthusiasm and budget, the content of the mastering will change according to the characteristics of the sales means, even if the original master is used, and the points of view will be different depending on the engineer, and strategy will be optimized of sales. Function of the
Therefore, it is natural that the mixing adjustment contents are different for each support sold. That is the difference in the media (format) seen from the side of the production.

Hi-Res Audio

This is because even for the same song, the recorded sound may differ slightly according to the medium (format). This means that. (Of course, it can be the same.)

So, if you compare the CD version and the high resolution version and feel a difference as “high resolution is incredible” or “high resolution is delicate but the CD version is good”, it is not the difference due to specifications Format, but the difference in sound is due to mastering. That is the possibility.

It is easy to understand if you use the fact that it actively changed the sound by mastering as a project, such as “the high-resolution version is remastered by the XX Mastering Engineer”, but in most cases there is no such description because it is Dedicated to the work behind the scenes to approach the original sound (or convert it into a sale sound) with the performance of the destination format. In addition, even if it is shown as a remastered version, the content of what was changed with the remasterization is not announced, and even if it is said that it is mastering simply by changing the level, it is up to that point, and the performance of each format And since the characteristics are different, it is not easy to compare to measure and there is a large part that appeals to the senses, so it is very difficult to understand the real difference of sound due to mastering.

Then, if you have the same song that makes the difference between the CD version and the high resolution version, convert the file from the high resolution version to make a CD and compare it.
I think you can get pretty interesting results testing some things to see if the CD you did sounds similar to the version on CD or the high resolution version.
(It is important to convert the top format file in terms of specifications to the format to compare and compare).

High resolution CD and sound sound.

High resolution CD and sound sound.

HiRes

Differences that can be heard and understood, differences that can not be understood.

What is Hi-Res Audio? HD music explained | Trusted Reviews

Recently, the same song will be launched in multiple media / formats as “CD”, “MP3 / AAC”, “44.1KHz / 16bit FLAC / WAV”, “high resolution compression format”, “FLAC / WAV high resolution” , and “DSD”. It is increasing, some of them are published on analog discs.

I am happy to have more options to enjoy music, but sometimes I see and listen to topics such as “the alleged superiority or inferiority of sound quality” and “high resolution sound is better”.
Well, manufacturers are also working hard to promote the “high resolution”, so I think that somehow is grown the image of “high resolution = good sound”.

By the way, do you feel the difference in the format of the same song, especially the difference in the sound between the CD version and the high resolution version, once you leave aside the good and the bad?

Even if it converts linear PCM music of 44.1 kHz / 16 bits, which is a CD format, a compression with loss that can not be played at 20 kHz, such as MP3 and AAC, even if you have a certain bit rate, You can change to AB. It is known that people can not distinguish between high resolution and CD, which has only the presence or absence of performance outside the limit of human perception in the first place is it easy to distinguish between high resolution and CD?
It is a simple and simple question.

Instead, in the songs that are effectively sold in normal version and in high resolution version, the sound difference is usually reviewed.
What’s wrong with this? ..

To unravel this, first we have to change our perspective.

For example, suppose you have a song whose MP3 / AAC version, CD version, high resolution version and disk version are on sale.
Is the same sound recorded in each file in the first place?

I am sure that some of you come with a pinch, but the keyword is to dominate.

Originally, it meant optimizing the original master of two tracks that was completed in the production process in the cutting process to make a disc. Specifically, keeping the signal within the physical limits of the disc, we will adjust
The level, the equalizer, the filter, etc. So that when the disc finally produced is reproduced, the sound is as similar as possible to the original master’s degree. . . In the digital age, compressed files, high resolution files and destination means have been added and changed, but the essence of mastering, which is the adjustment process to optimize destination, has not changed . It is not just about format conversion.