• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Procedure for emulating the sound of a vacuum tube amplifier recorded in a professional studio using a solid-state preamplifier pedal (2) of electric instrument (1) and an impulse response (3) constituted by a first stage in which the pedal solid state preamplifier processes the signal emitted by the electrical instrument and a second stage in which the solid state preamp pedal signal (2) is input to a digital audio workstation, in which the discrete convolution of said signal with an impulse response (3). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2630737A1
    申请号:ES201600132
    申请日:2016-02-19
    公开日:2017-08-23
    发明作者:José Manuel MARTINEZ GARCIA-CASARRUBIOS
    申请人:José Manuel MARTINEZ GARCIA-CASARRUBIOS；
    IPC主号:
    专利说明:

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    DESCRIPTION
    Sound emulation procedure of a vacuum valve amplifier.
    Object of the invention
    The present invention as expressed in the statement of this specification refers to the process of emulating the sound of a vacuum valve amplifier recorded in a professional studio using a solid-state preamptifier pedal and a impulse response, obtaining very accurate results and fidelity
    Field of the Invention
    The present invention has its application in the music electronics industry. Background of the invention
    Since the introduction of the transistor in the amplification of electrical instruments as a substitute element of the ford valves, attempts have been made repeatedly to imitate with solid state technology the loudness of the thermionic valve amplifiers. This imitation is very complex due to the frequency response and non-linearity of the vacuum valves.
    Despite the advantages offered by the transistor in terms of portability and performance, there are many instrumentalists who prefer to use equipment with vacuum valve technology due to its distinctive tonal characteristics.
    Professional recording studios are venues dedicated to the recording and processing of sound signals. Musicians usually opt for their recordings for such studies with acoustic treatment, microfonla and high quality signal processors, quality that is reflected in their recordings. The cost of its use is very high, so it is necessary to provide a procedure that allows musicians to emulate vacuum valve amplifier and study professional recording accurately and with a reduced cost.
    To carry out this emulation, the use of exclusively digital technology implies a linear and precise behavior, improper of the vacuum valve amplifiers. The use of exclusively analog technology of solid state, implies having markedly different frequency characteristics to amplifiers of vacuum valves and recording environments with acoustics, microwaves and real processors, since the frequency response of these systems is very complex and different from the attainable only with this technology.
    These results favor the need to strike a balance between analog and digital processing to effectively emulate the sound of a vacuum valve amplifier recorded in a professional studio with a high level of veracity.
    Description of the invention
    According to the above, with analog solid state technology we can emulate the dynamics and nonlinearities of the sound of a vacuum valve amplifier recorded in a professional studio, but not so! the frequency response of the system. Also, with digital technology we can emulate the frequency response of
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    a vacuum valve amplifier recorded in a study environment, but not the nonlinearities and dynamics of the system. The present invention proposes the following solution:
    • Use a solid state analogue technology preamplifier with a structure very similar to that of the vacuum valve amplifier preamplifier that we wish to imitate. In this way, the dynamics of a vacuum valve system and its non-linearities can be emulated very effectively and precisely.
    • Perform a discrete convolution operation of the signal from the solid state preamp with a impulse response to emulate the frequency response of all parts of the vacuum valve amplifier, such as its preamplifier, power stage, speaker and loudspeakers and the Professional study environment, such as its microfonance, acoustics and processing systems such as preamps or equalizers.
    Ace! we will closely approximate the frequency, dynamics and non-linear characteristics of the system exposed to that of a vacuum valve recorded in a professional studio.
    Expressed in another way, we will obtain an identical sound by recording an electric instrument through a vacuum valve amplifier in a professional studio or by processing the signal coming from an electric instrument through the preamp pedal and then reprocessing this signal inside a station of digital audio work through a discrete convolution operation with a impulse response, if we create a unique relationship between solid state preamp pedal and impulse response, as described in the preferred embodiment of the invention.
    Drawings
    To facilitate the understanding of this specification, a set of drawings consisting of diagrams that together define the sound emulation procedure proposed by the present invention and the elements that configure it are attached
    Figure 1.- Made up of the traditional recording diagram (A) and the proposed recording diagram (8). In it, the emulation relationship established between the solid state preamp pedal and the vacuum valve amplifier preamp is appreciated. Likewise, the condensation of functions in the impulse response (3) of the elements of which it emulates its frequency response is appreciated: vacuum valve amplifier preamplifier (2a) amplifier power stage with vacuum valve technology (3a ), the speaker and loudspeakers (3b) and the studio processing (3c).
    Preferred Embodiment of the Invention
    As can be seen in the recording diagram 8 of Figure 1, the sound emulation procedure proposed herein is constituted by an electric instrument (1), common to both diagrams; a solid state preamp pedal (2) and impulse response (3) according to the following stages:
    1. In the first stage of the process, in which analog technology is used, the electric instrument is connected to the solid state preamp pedal, in such a way
    so that the signal emitted by the electrical instrument is processed by the solid state preamp pedal.
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    The solid state preamp pedal (2) emulates the structure of the ford valve amplifier preamp (2a), replacing the valves with transistors and including modifications to the electronic parameters of the circuit that configure it to assimilate the solid state preamp pedal and the preamplifier of the vacuum valve amplifier in the form of filtering the wave, polarization of amplifying elements, saturation threshold and structure of gain stages.
    2. In the second stage, characterized by the use of digital technology, the signal that has been processed in the first stage by the solid-state preamp pedal (2) is inserted into an audio interface for recording (sound card) and later in a digital audio workstation that will perform a discrete convolution operation between said signal and the impulse response (3), which condenses the emulation of the frequency response of the amplifier of the vacuum valve amplifier, the power stage of the Vacuum valve amplifier (3a), loudspeaker and loudspeakers (3b) and professional studio processing (3c) of the traditional operating diagram (A).
    In this way, by creating a unique relationship between the solid state preamp pedal and the impulse response, a sound is obtained that faithfully emulates the one produced by the vacuum valve amplifier in the emulated professional recording studio.
    权利要求:
    Claims (1)
    [1]
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    1. Sound emulation procedure of a vacuum valve amplifier recorded in a professional studio using a solid state preamp pedal and an impulse response, characterized by the discrete convolution of the sound signal from the solid state preamp pedal (2) with a impulse response (3), whose univocal relationship gives rise to a sound very similar to that produced by a vacuum valve amplifier recorded in a professional studio that is produced according to the following stages:
    • In the first stage, the electric instrument (1) emits a serial that will be processed by the solid state preamp pedal (2), which reproduces the electronic structure of the amplifier of the vacuum valve amplifier to emulate, replacing the thermionic valves by transistors and assimilating to it its way of filtering the wave, polarization of amplifying elements, its saturation threshold and its structure of gain stages.
    • In the second stage, the signal processed by the solid state preamp pedal (2) is inserted into an audio interface for recording (sound card) and then into a digital audio workstation that will perform a discrete convolution operation between said signal and the impulse response (3), which condenses the emulation of the frequency response of the vacuum valve amplifier preamplifier, the power stage of the vacuum valve amplifier (3a), the speaker and speakers (3b) and professional study processing (3c) of the traditional operation diagram (A).
    The two stages of the procedure create a univocal relationship between the solid state preamp pedal and the impulse response, which causes a sound that faithfully emulates the one produced by the vacuum valve amplifier in the emulated professional recording studio.
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    同族专利:
    公开号 | 公开日
    ES2630737B1|2018-05-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201600132A|ES2630737B1|2016-02-19|2016-02-19|Sound emulation procedure of a vacuum valve amplifier|ES201600132A| ES2630737B1|2016-02-19|2016-02-19|Sound emulation procedure of a vacuum valve amplifier|
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