What is bitrate?
Bitrate is a metric that indicates the speed at which digital data is transmitted. It’s expressed in bps (bits per second), representing how many bits are transferred in one second.
Sound(English)
What is Bluetooth? : Understanding Bluetooth at a Glance
Bluetooth is a technology that enables wireless communication between various devices. This technology utilizes the ISM (Industrial, Scientific, and Medical) band, enabling short-range communication between individuals. It was developed for transmitting data between small personal wireless devices and is being utilized in various aspects of daily life.
The concept of Phase and Waveforms
A wave is a vibrational phenomenon that serves as a medium for energy transfer and exists in various forms, such as sound waves, radio waves, and light waves. A wave has several different properties, including period, amplitude, frequency, and speed.
Phase is a concept that explains where a wave is located within its cycle. When there are two waves, it represents how far apart they are in time, or in other words, the difference in their temporal positions. Phase is expressed in degrees, dividing one cycle into 360 degrees.
Understanding and Utilizing Compressors 2: Utilizing Audio Compressors for the Perfect Mix
The choice of a compressor significantly influences the overall direction of compressing. This is because many analog compressors have their characteristics, with different detector types and fixed Attack, Release, etc. It is crucial to choose a compressor that fits the situation. However, for those who are not familiar with handling compressors, it is recommended to use a standard digital compressor. This is because digital compressors have very objective and various parameters, allowing for free control depending on what is intended.
Understanding and Utilizing Audio Compressors 1: What is a Compressor?
An audio compressor plays a vital role in audio engineering and music production, serving as a “semi-automatic volume controller.” The primary purpose of a compressor is to narrow the dynamic range of the input signal. Dynamic range refers to the difference between the maximum and minimum levels of an audio signal.
History and Types of Compressors
The First Compressor
The world’s first dynamic processor was the Telefunken U3, designed in the early 1930s and first used at the 1936 Berlin Olympics.
U13 was the next generation of audio compressors. Introduced in the 1940s, it was developed based on the same components and technologies as the precursor to the V72. This device is considered the progenitor of all modern non-tube compressors.
What is Weighted filter?
Weighted filters are designed to emphasize or attenuate specific frequency ranges and are primarily used to reflect human auditory characteristics. These filters are based on the fact that human auditory responses are not uniform across all frequencies.
What is LUFS and LKFS?
LUFS (Loudness Units Full Scale) and LKFS (Loudness K-weighted Full Scale) are units used to measure the loudness of sound. They serve as international standards to quantify the relative loudness of audio, based on how humans perceive it. LUFS/LKFS is utilized to measure the average loudness across a variety of audio content like music, films, and broadcasts, applying a K-weighted filter in the process.
What is Loudness?
Loudness refers to the perceived volume of sound as heard by the human ear. It may differ from the actual sound pressure level (dBSPL), which objectively quantifies sound intensity.
What is PPM(Peak Program Meter)?
PPM (Peak Program Meter) is designed to measure the peak value of a signal. Developed initially in 1932, the PPM meter as we know it today appeared in 1938. However, PPM does not indicate the actual peak voltage of the signal. The early devices used a 10ms detection time (Type II meter), and later this was reduced to 4ms (Type I meter). These detection times were chosen to ignore the quickest transient peaks, resulting in PPM often being called “Quasi PPM,” distinguishing it from true PPM. Very short transient signals can be displayed about 4dB lower. The reason for ignoring transient peaks is the assumption that momentary overloads in recording or transmission equipment are generally inaudible if they are less than 1ms analog overloads.