CN109817189A - Adjusting method, audio adjustment equipment and the system of audio signal - Google Patents
Adjusting method, audio adjustment equipment and the system of audio signal Download PDFInfo
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- CN109817189A CN109817189A CN201811641498.4A CN201811641498A CN109817189A CN 109817189 A CN109817189 A CN 109817189A CN 201811641498 A CN201811641498 A CN 201811641498A CN 109817189 A CN109817189 A CN 109817189A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a kind of adjusting methods of audio signal, applied to sound effect device, for receiving the audio signal of musical instrument input and the audio signal being adjusted, the audio signal is chord audio signal, which comprises multichannel monochord audio signal is parsed from the audio signal；Frequency of the detection per monochord audio signal all the way；Judge whether the frequency of each road monochord audio signal is lower than predeterminated frequency；Each road monochord audio signal that will be less than the predeterminated frequency, which adjusts rule according to predeterminated frequency, reduces frequency；It is exported after each road monochord audio signal not less than the predeterminated frequency is directly mixed with the reduction road frequency Hou Ge monochord audio signal.Invention also discloses a kind of audio adjustment equipment and audio regulating system.Present disclosure makes musical instrument player using the audio signal that can be utilized lower than predeterminated frequency, obtain the extension application of chord.
Description
Technical field
The present invention relates to musical instruments field more particularly to a kind of adjusting method of audio signal, audio adjustment equipment and
System.
Background technique
Currently, usually will use octave effect device during instrument playing, for changing the pitch of the music of performance,
An octave is such as turned up or reduces an octave, obtains different performance audio.It can be achieved with shellfish even with a guitar
This audio effect.But there are many different audio mixing effects to need for meeting in playing procedure, existing octave effect device is only
The multichannel pitch of the chord of input can be changed simultaneously, effect is more single, is unable to get better music effect.
Summary of the invention
For overcome the deficiencies in the prior art, one of the objects of the present invention is to provide the MCVF multichannel voice frequency of a kind of pair of chord letters
Number method for doing different adjustment.
A kind of adjusting method of audio signal is applied to sound effect device, for receiving the audio signal and right of musical instrument input
The audio signal is adjusted, and the audio signal is and chord audio signal, which comprises
Multichannel monochord audio signal is parsed from the audio signal；
Frequency of the detection per monochord audio signal all the way；
Judge whether the frequency of each road monochord audio signal is lower than predeterminated frequency；
Each road monochord audio signal that will be less than the predeterminated frequency, which adjusts rule according to predeterminated frequency, reduces frequency；
By not less than the predeterminated frequency each road monochord audio signal directly with reduce the road frequency Hou Ge monochord audio
Signal exports after being mixed.
Further.It is characterized in that before exporting the audio signal, the method also includes,
The gain of each road monochord audio signal of rule adjustment is adjusted by preset gain.
Further, the predeterminated frequency adjusts rule as the frequency of the audio signal is reduced half.
Further, the predeterminated frequency is any one value in 110Hz -207.7Hz.
A kind of adjusting method of audio signal is applied in musical instrument system, and the musical instrument system includes that musical instrument and audio are set
It is standby, which comprises
For the musical instrument output audio signal to sound effect device, the audio signal is chord audio signal；
Frequency of the sound effect device detection per monochord audio signal all the way；
The sound effect device judges whether the frequency of each road monochord audio signal is lower than predeterminated frequency；
Each road monochord audio signal that the sound effect device will be less than the predeterminated frequency adjusts rule according to predeterminated frequency
Reduce frequency；
The sound effect device is by each road monochord audio signal not less than the predeterminated frequency directly and after reduction frequency
Each road monochord audio signal exports after being mixed.
Further, it is characterised in that before exporting the audio signal, the method also includes,
The sound effect device is adjusted the gain of each road monochord audio signal of rule adjustment by preset gain.
Further, the predeterminated frequency adjusts rule as the frequency of the audio signal is reduced half.
Further, the predeterminated frequency is any one value in 110Hz -207.7Hz.
A kind of audio adjustment equipment, the audio adjustment equipment with musical instrument for being electrically connected with the audio of the input to musical instrument
Signal is handled, and the audio adjustment equipment includes memory, processor and program stored in memory, the journey
Sequence is configured to be executed by processor, and processor realizes the tune of described in any item audio signals among the above when executing described program
Section method.
A kind of audio regulating system, including musical instrument and audio adjustment equipment, the musical instrument are described for generating audio signal
Audio signal is chord audio signal, and the audio adjustment equipment includes memory, processor and stored in memory
Program, processor realize the adjusting method of audio signal described in any of the above embodiments when executing described program.
Compared with prior art, the beneficial effects of the present invention are: a kind of adjusting method of audio signal is provided, carry out and
, can be according to the frequency of multipath audio signal when string is played, while making the adjustment of different audio signals.Meet instrument playing
Person does the application of chord extension using root sound.
Detailed description of the invention
Fig. 1 is the first embodiment flow diagram of the adjusting method of audio signal of the present invention；
Fig. 2 is the second embodiment flow diagram of the adjusting method of audio signal of the present invention；
Fig. 3 is the 3rd embodiment flow diagram of the adjusting method of audio signal of the present invention；
Fig. 4 is the fourth embodiment flow diagram of the adjusting method of audio signal of the present invention；
Fig. 5 is the audio adjustment equipment structural schematic diagram of the embodiment of the present invention；
Fig. 6 is the audio regulating system structural schematic diagram of the embodiment of the present invention.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
The embodiment of the invention provides a kind of adjusting method of audio signal, it is mainly used in sound effect device, works as musical instrument
When carrying out chord performance, multipath audio signal is generated, the frequency for carrying out audio signal to the multipath audio signal of generation is adjusted, right
Audio signal lower than predeterminated frequency carries out reduction frequency processing, is doing audio mixing output, is obtaining new audio signal, makes performance
The effect of music is more diversified.
Fig. 1 is please referred to, the first embodiment of the present invention provides the adjusting method flow diagram of audio signal, this method packet
Following step is included,
Step S101: multichannel monochord audio signal is parsed from the audio signal:
Audio signal generates the information carrier of regular sound frequency and amplitude variation when being instrument playing.Believe from audio
Multichannel monochord audio signal is obtained in number.
Step S103: frequency of the detection per monochord audio signal all the way.
Step S105: judge whether the frequency of each road monochord audio signal is lower than predeterminated frequency.
By carrying out frequency height with preset frequency to per the frequency of monochord audio signal all the way and comparing, judge whether low
In predeterminated frequency.In the present embodiment, predeterminated frequency is any one value in 110Hz -207.7Hz.
Step S107: each road monochord audio signal that will be less than the predeterminated frequency, which adjusts rule according to predeterminated frequency, to be reduced
Frequency.
It is to reduce the frequency of monochord audio signal that predeterminated frequency, which adjusts rule, the frequency of audio signal to be processed can be dropped
One third, half down to primary frequency.In the present embodiment, it is by audio signal to be processed that predeterminated frequency, which adjusts rule,
Frequency be reduced to the half of primary frequency, hearing on audio is that the sound that will be inputted reduces by one on original pitch
Octave.
Step S109: by not less than the predeterminated frequency each road monochord audio signal directly with reduce the road frequency Hou Ge
Monochord audio signal exports after being mixed.
It detects the monochord audio signal not less than predeterminated frequency, does not then change the frequency of the monochord audio signal, directly
The audio signal export after being mixed to get new chord audio signal with the monochord audio signal after above-mentioned reduction frequency.
In the present embodiment, it is played by happy chord, it being capable of believing per audio all the way to the multipath audio signal of chord
It number carries out the judgement of frequency height and carries out dropping low-frequency processing to lower than the audio signal of predeterminated frequency.Finally by multichannel sound
Frequency signal exports simultaneously, obtains and new playing effect.
Fig. 2 is please referred to, is the adjusting method flow diagram of the audio signal of the second embodiment of the present invention.Second implements
The sound mixing method of example and the sound mixing method difference of first embodiment are that before exporting the audio signal, the method is also
Include:
Step S201: the gain of each road monochord audio signal of rule adjustment is adjusted by preset gain.
According to the frequency per monochord audio signal all the way of detection, respectively to the gain of monochord audio signal according to preset
Adjust rule be adjusted, with adjust input monochord audio signal signal strength, that is, the semaphore inputted number.Gain
The determined strong degree of final output monochord audio signal is set, the distortion factor that tone color can also be arranged by changing gain.It can
Different adjustment is carried out to lower than predeterminated frequency and not less than the monochord audio signal of predeterminated frequency simultaneously.
In above-described embodiment, before the adjusting method using audio signal, the list of output can be set by physical button
The loudness of string audio signal, can be not low lower than the monochord audio signal of predeterminated frequency and frequency to the frequency of audio signal respectively
It is adjusted in the monochord audio signal of predeterminated frequency.
Please from referring to Fig. 3, Fig. 3 is the adjusting method flow diagram of the sound signal of third embodiment of the invention.Third
Embodiment provides a kind of adjusting method of audio signal, and this method is applied in musical instrument system, and the musical instrument system includes pleasure
Device equipment and sound effect device, which comprises
Step S301: for the musical instrument output audio signal to sound effect device, the audio signal is chord audio signal.
By opening the audio signal mode of sound effect device, when carrying out chord performance using musical instrument, sound effect device is received
Chord audio signal carries out complex tone identification, obtains multichannel monochord audio signal.Specifically, complex tone is identified as by sound signal
DSP identified.
Step S303: frequency of the sound effect device detection per monochord audio signal all the way.
Frequency values of the sound effect device detection per monochord audio signal all the way.
Step S305: the sound effect device judges whether the frequency of each road monochord audio signal is lower than predeterminated frequency.
Audio frequency apparatus is sentenced by carrying out frequency height with preset frequency to per the frequency of monochord audio signal all the way and comparing
It is disconnected whether to be lower than predeterminated frequency.In the present embodiment, predeterminated frequency is any one value in 110Hz -207.7Hz.
Step S307: the sound effect device will be less than each road monochord audio signal of the predeterminated frequency according to predeterminated frequency
Adjusting rule reduces frequency.
Predeterminated frequency adjusts rule, reduces the audio signal inputted from musical instrument and carries out frequency adjusting, makes to set by audio
The pitch of the audio signal of standby processing reduces preset frequency.The pitch for such as needing to reduce an octave needs to adjust frequency
To the half of primary frequency.
Step S309: the sound effect device by not less than the predeterminated frequency each road monochord audio signal directly with reduction
The road frequency Hou Ge monochord audio signal exports after being mixed.
Sound effect device predeterminated frequency detects the monochord audio signal not less than predeterminated frequency, then does not change the monochord audio
The frequency of signal directly carries out the monochord audio signal after the audio signal and above-mentioned reduction frequency to be mixed to get new chord
It is exported after audio signal.
Please from referring to Fig. 4, Fig. 4 is the adjusting method flow diagram of the sound signal of fourth embodiment of the invention.4th
Embodiment provides a kind of adjusting method of audio signal, and this method is applied in musical instrument system, judges per the audio described all the way
Whether the frequency of signal is lower than after the predeterminated frequency, which comprises
Step S401: the sound effect device is adjusted the gain of each road monochord audio signal of rule adjustment by preset gain.
According to the frequency per monochord audio signal all the way of detection, respectively to the gain of monochord audio signal according to preset
Adjust rule be adjusted, with adjust input monochord audio signal signal strength, that is, the semaphore inputted number.Gain
The determined strong degree of final output monochord audio signal is set, the distortion factor that tone color can also be arranged by changing gain.It can
Different adjustment is carried out to lower than predeterminated frequency and not less than the monochord audio signal of predeterminated frequency simultaneously.
Fig. 5 is please referred to, Fig. 5 is a kind of structural schematic diagram of audio adjustment equipment.The embodiment of the present invention provides audio and adjusts
Equipment 300 is handled for being electrically connected with musical instrument with the audio signal of the input to musical instrument, and audio adjustment equipment 300 includes depositing
Reservoir 301, processor 302 and the program being stored in memory 301, described program are configured to be executed by processor 302,
Processor 302 realizes the adjusting method of above-mentioned audio signal when executing described program.
Fig. 6 is please referred to, Fig. 6 is a kind of structural schematic diagram of audio regulating system.Audio provided in an embodiment of the present invention
Regulating system includes musical instrument 400 and audio adjustment equipment 500, musical instrument for generating audio signal, the audio signal of generation be and
String audio signal, audio adjustment equipment 500 include memory 501, processor 502 and the program being stored in memory 501,
Processor 502 realizes the adjusting method of above-mentioned audio signal when executing program.
The method in audio adjustment equipment, audio regulating system and previous embodiment in the present embodiment is based on same hair
Two aspects under bright design, are in front described in detail method implementation process, so those skilled in the art
The implementation process of the electronic equipment in the present embodiment can be well understood according to foregoing description, in order to illustrate the succinct of book, herein
Just repeat no more.
Above-described embodiment provides adjusting method, the audio adjustment equipment, audio regulating system of audio signal, can pass through
Predeterminated frequency carries out frequency adjusting and loudness to the multichannel monochord audio signal of composition chord audio signal and adjusts, by being lower than
The monochord audio signal of predeterminated frequency does frequency adjusting, and mixes with the monochord audio signal not less than predeterminated frequency, makes to find pleasure in
Device player obtain the extension application of chord using the audio signal that can be utilized lower than predeterminated frequency.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of adjusting method of audio signal is applied to sound effect device, for receiving the audio signal of musical instrument input and to institute
It states audio signal to be adjusted, the audio signal is chord audio signal, which is characterized in that the described method includes:
Multichannel monochord audio signal is parsed from the audio signal；
Frequency of the detection per monochord audio signal all the way；
Judge whether the frequency of each road monochord audio signal is lower than predeterminated frequency；
Each road monochord audio signal that will be less than the predeterminated frequency, which adjusts rule according to predeterminated frequency, reduces frequency；
By not less than the predeterminated frequency each road monochord audio signal directly with reduce the road frequency Hou Ge monochord audio signal
It is exported after being mixed.
2. the adjusting method of audio signal according to claim 1, it is characterised in that before exporting the audio signal,
The method also includes,
The gain of each road monochord audio signal of rule adjustment is adjusted by preset gain.
3. the adjusting method of audio signal according to claim 1, which is characterized in that the predeterminated frequency adjusts rule and is
The frequency of the audio signal is reduced into half.
4. the adjusting method of audio signal according to claim 1, which is characterized in that the predeterminated frequency is 110Hz-
Any one value in 207.7Hz.
5. a kind of adjusting method of audio signal, it is applied in musical instrument system, the musical instrument system includes musical instrument and sound effect device,
It is characterized in that, which comprises
For the musical instrument output audio signal to sound effect device, the audio signal is chord audio signal；
Frequency of the sound effect device detection per monochord audio signal all the way；
The sound effect device judges whether the frequency of each road monochord audio signal is lower than predeterminated frequency；
Each road monochord audio signal that the sound effect device will be less than the predeterminated frequency, which adjusts rule according to predeterminated frequency, to be reduced
Frequency；
The sound effect device by not less than the predeterminated frequency each road monochord audio signal directly with reduce the road frequency Hou Ge
Monochord audio signal exports after being mixed.
6. the adjusting method of audio according to claim 5, which is characterized in that it is characterized in that exporting the audio letter
Before number, the method also includes,
The sound effect device is adjusted the gain of each road monochord audio signal of rule adjustment by preset gain.
7. the adjusting method of audio according to claim 5, which is characterized in that the predeterminated frequency adjusts rule as by institute
The frequency for stating audio signal reduces half.
8. the adjusting method of audio according to claim 1, which is characterized in that the predeterminated frequency is 110Hz-
Any one value in 207.7Hz.
9. a kind of audio adjustment equipment, the audio letter that the audio adjustment equipment is used to be electrically connected with musical instrument with the input to musical instrument
It number is handled, the audio adjustment equipment includes memory, processor and program stored in memory, described program
It is configured to be executed by processor, processor realizes audio letter of any of claims 1-4 when executing described program
Number adjusting method.
10. a kind of audio regulating system, which is characterized in that including musical instrument and audio adjustment equipment, the musical instrument is for generating sound
Frequency signal, the audio signal are chord audio signal, and the audio adjustment equipment includes memory, processor and is stored in
Program in memory, processor realize the tune of audio signal of any of claims 1-4 when executing described program
Section method.
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