Reverb Effect

   In this article, intended primarily for beginners, I will consider all aspects of the most popular effect in the process of creating music.
   Starting with the basics of the theory of reverberation, we pass to a brief history of its use to the digital age, consider what are reverbs, then proceed to study the types and adjustable parameters of reverb, and finally finish on practical advice on its application.
   Reverberation is accompanied by any sound originating in the natural acoustic environment. There is the reflection of sound waves from any obstacles and return to the point of listening. Therefore, in the perception of acoustic sound is present its direct source and multiple reflections from nearby surfaces - obstacles.In the audio reverb gives a sense of deep space. Source sounds with a more pronounced effect of reverberation subjectively, like it is located at a distance from the listener.In the process of natural reverberation  the spectrum frequency  of sound changes . High frequencies are attenuated faster than low, so the tone of the reflected sound in comparison with the original has a soft, muted character. The value of the loss of high frequency components of the spectrum depends on the distance traveled by the acoustic wave, and the material properties of reflecting surfaces.
    In any modern digital reverb, you can select several programs that simulate real conditions of different plays or synthesizing some fantastic situation for special effects. Following is a brief description of the most popular examples. 
    Hall- simulates the acoustics of a concert hall. Deep reverb with a large decay time. Subjectively, as it separates the sound source from the listener. Room - a small room reverb. Suitable for application to acoustic instruments in the chamber atmosphere. Live (Stage) - simulates a live performance on stage, it is believed that this type of reverb is well suited for solo instruments.Plate - a simulation of a plane electromechanical reverberation metal plate as described above. Apply for vocals and percussion instruments.
Spring - lo-fi reverb, imitating the above-mentioned spring-electromechanical design. Chamber - an imitation of earlier described the premises to record the reverb. Gate - Reverb with cutting off the final phase of damping. Gives the sound of a certain dynamic character, and is used for percussion instruments and, in particular, for the drums. Reverse - the type of artificial reverb with inverted envelope,  It grows slowly at first, then ends abruptly. A similar effect can be obtained by inverting the sound editor, applying a standard reverb and reverse inversion. In this case, reverb begins even before starting the main sound. Specific effect, is sometimes used for vocals.

Compressors

Compressor relates to dynamic processors. These processors are designed to change the dynamic range of the signal. Dynamic range is the difference in decibels between the quietest and loudest sound of the signal. The wider dynamic range, the greater the difference between quiet and loud sounds.

The task of the compressor is to narrow the dynamic range of the processed audio signal. Compressor makes it more quiet, loud peaks of the signal and increases the volume of the quiet ones, thus reducing the difference between their levels.

Compressor has the following objectives: Removal of wavelets volume, which can make a significant distortion in digital audio;Error correction singer ,drops the volume of singing, which arise from the inability of some singers to keep the microphone at all times at the same distance from your mouth;Increase the overall level of entries in the data.

Consider the adjustable parameters of compressors:Threshold -specifies the level at which the compressor will begin to process the signal. This parameter is specified in decibels below the peak value. That is the threshold value of -4 dB means that the compressor will handle the signal if the level of the signal at 4 dB less than the calibrated value is 0 dB. In digital systems, 0 dB - the highest level of the signal. Ratio-this parameter determines how the compressor affects the signal. For example, the ratio of 2:1 means that if the signal exceeds the threshold, then the level of this signal should be reduced by half. If the signal level exceeds the specified 1 dB, then after compression, it will exceed the threshold only 0.5 dB.
Attack-this setting determines how fast the compressor will begin to process the signal.
Release-his parameter specifies the duration of the signal processing after the start of the signal. Like the attack value, decay sets in milliseconds.
Gain-with this option you can specify the level of the signal at the output of the compressor. The value is in decibels. Since the compressor, typically reduces the overall level of the signal, then using this option, you can restore it to its original.

Ableton Live 8

This program was made to produce music on your computer and mix tracks as well.Ableton is very popular among modern dj's and has also become competitive in the creation of music.This program is the opportunity to work with Midi, that means you can connect external MIDI instruments and use vst instruments,plug-in tools also.Live supports  Rewire protocol which means that you can combine it with other programs such as Reason,Cubase,Logic,Pro-tools.Ableton was created for musicians who are seeking the most effective way to compose and improvise using a computer.The developers have done a good job making the program convenient and easy to use.Also Live provides unique opportunity to create computer music with unlimited complexity and diversity.This product that has appeared thanks to the participation in the development and testing musicians with new ideas and technologies.This product that has appeared thanks to the participation in the development and testing musicians with new ideas and technologies demonstrates  in which direction industry of creation and managing music with computer will develop.