Sound Perception and Compression
Traditional lossless compression methods (Huffman, LZW, etc.) are usually poorly applied to compressing audio information (for the same reasons as when compressing visual information). Some lossy compression methods are listed…

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About musical performance
Performance as a special type of artistic activity does not exist in all arts. In painting for example, it is inseparable from creativity: to create a picture is what it…

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What music preferences depend on
Music can be safely called a universal language. Regardless of the language in which certain songs are performed, for some reason we want to listen to specific music, even if…

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level or another

What is pop music

Estrada is a type of stage art that implies both a separate genre and a synthesis of genres: singing, dance, original performance, circus art, illusions.

Pop music is a form of entertaining musical art, addressed to the widest audience.

This type of music was most developed in the XX century. It usually includes dance music, various songs, works for pop-symphony orchestras and vocal and instrumental ensembles.

Often, pop music is identified with the existing concept of “light music”, that is, easy to perceive, generally available. In historical terms, classical music that is simple in content and has gained universal popularity can Continue reading

The nature of the sound of tube amplifiers

Exciter (from the English Exciter), also called harmonic exciter (harmonic exciter), psychoacoustic processor (psychoacoustic processor), enhancer (enhancer) and acoustic exciter (aural exciter) – this is a processing device used for the harmonious synthesis of high-frequency signals, using thin harmonic distortion.

This harmonic synthesis consists in creating higher harmonics based on lower signal frequencies. Typically, noise is present in different frequency bands in unequal amounts, and harmonics obtained from a clean frequency band will be clearer. Less commonly, exciters (enhancers) are used to synthesize low-frequency harmonics in order to simulate deep bass.

Initially, exciters were made on the basis of tube amplifiers, but now they exist in the form of digital processors.

Exciters and enhancers are used to change the tonal qualities of sound. But, unlike the equalizer, which Continue reading

Sound effects

Let’s dwell on the consideration of those manipulations with sound that allow you to achieve the appearance of effects such as, for example, echo, reverb, etc. There are various ways of transforming sound (amplitude, frequency, etc.). Based on these transformations, sound effects are realized. Basically, the goal of sound processing is to give the existing sound some new qualities or eliminate undesirable ones. Sound effects refer to those sound transformations that give the sound new forms or completely change the sound information.

The hardware implementation of sound effects is found in digital signal processors (DSPs). Any more or less decent MIDI synthesizer has a built-in effect processor of one or another complexity (the effect processor is one or more DSPs). Complex effect processors “know how” to apply several different effects to the sound signal at once, moreover, separately for each channel, allowing you to adjust the parameters of the effects in real time. However, the cost of such effect processors is extremely high (like the cost of any other high-performance microprocessor), so professional DSPs are installed only on high-quality musical equipment. On more or less cheap sound cards, DSP is often installed with a simplified set of features: applying one or more effects to all Continue reading

Sound effects
Let's dwell on the consideration of those manipulations with sound that allow you to achieve the appearance of effects such as, for example, echo, reverb, etc. There are various ways…

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Sound Perception and Compression
Traditional lossless compression methods (Huffman, LZW, etc.) are usually poorly applied to compressing audio information (for the same reasons as when compressing visual information). Some lossy compression methods are listed…

...

Would you be Einstein?
You are young, you consider yourself advanced, nightclubs are the best place where you can have fun after school or work. After - a feeling of well-spent time, only fresh…

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Vocoders: practice and assortment
Vocoder (English voice coder - voice encoder) - a speech synthesis device based on an arbitrary signal with a rich spectrum. Initially, vocoders were developed in order to save the…

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