Digital sound engineering Many electronic sound engineering programs are used to record , purify and merge sounds electronically. En: Audio Mastering where after the sounds are recorded, they are entered into the program and the sound is processed in several stages. Audio production stages Purification and Noise Reduction A basic process where the sound engineer truncates a part of the sound clip and imaged it (vacuum sound or light noise), this part contains a specific frequency and intensity that is usually dB light and removes it, and passes it on all other sound clips. Recording It is the process of entering sounds into the program, either directly by using amplifiers or inserting previously recorded files into the program. Note: recording the songs be on the stages where the first engineer begins to enter sounds of musical instruments in agreement with the distributor and then recording the choir Chorus and then the sound solo Vocal. Amplitude and Fade At this stage, the sound waves are amplified or weakened according to the recorded sound material. The medium wave option is usually used in the Vocal and other options depending on the intensity of the sound waves dB. Balance It is a process of balancing the left and right channels so that the sound becomes consistent and balanced in the two channels and other options raise the right path to a higher degree or vice versa. Dynamic Processing It is considered one of the most important stages where a Curve graph is used manually to raise the volume sometimes or reduce specific frequencies and cancel a certain amount of dB. Normalize After the purification process and dynamic processing, the recording may lose some frequencies, so there will be a void in the sound that will fill part of it with the Normalize process, and there is another application for some Filters. The extensionExpand The spread or spread is usually incidental to the sound wave. Filters At this stage, several filters are used, most notably: Dynamic Equalizer the Dynamic the EQ . Graphic EQ: The graph is used to deal with sound waves, frequencies and sound intensity. It is also used to show high and medium (Hight) and Low sound waves in the audio segment. Parametric EQ. Delay delay and Effects sound effects Sound engineers consider it the last stage of handling the audio clip sometimes before merging, where the delay effects are used Delay the manipulation of the time period and the frequency of the sound more than once with the difference of the applications, where the audio clip is divided into more than one clip and each clip has a specific time period and a specific layer. Other sound effects, such as Echo, echo and echo , change the recording environment