CN111145784A - Sound detection starting system - Google Patents
Sound detection starting system Download PDFInfo
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- CN111145784A CN111145784A CN202010165362.1A CN202010165362A CN111145784A CN 111145784 A CN111145784 A CN 111145784A CN 202010165362 A CN202010165362 A CN 202010165362A CN 111145784 A CN111145784 A CN 111145784A
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- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 230000000694 effects Effects 0.000 claims abstract description 21
- 238000001914 filtration Methods 0.000 claims abstract description 21
- 238000009499 grossing Methods 0.000 claims abstract description 3
- 230000008054 signal transmission Effects 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000004913 activation Effects 0.000 claims 9
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
- G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/26—Pre-filtering or post-filtering
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- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention provides a sound detection starting system which is used for starting an event activity and comprises a sound acquisition module, a filtering module and a processing module, wherein the sound acquisition module is used for acquiring the sound of people on the event activity site and converting the sound into an audio numerical value; the filtering module is used for filtering noise in the audio numerical value and smoothing the audio numerical value to obtain an audio contrast numerical value; the processing module is used for comparing the audio comparison value with a starting threshold value and judging whether a starting signal is sent or not so as to start the event activity through the video playing equipment. In the sound detection starting system, whether the equipment is started by sending the starting information is judged by collecting the audio information, so that the interference of artificial starting factors is avoided, and the accuracy of the starting time of the equipment is ensured.
Description
Technical Field
The invention relates to the technical field of sound control, in particular to a sound detection starting system.
Background
The activity match is generally started when the number of participants reaches a certain number, but the traditional activity match starts ceremony and generally comprises that a sound gun is started, a touch start ball is started, a host population plays down for counting, and the like, then video playing equipment is started manually, the activity match is started in a video playing mode, the activity match is easily influenced by subjective factors of starting personnel, and the starting time of the video playing equipment in the event activity is inaccurate.
Therefore, there is a need to provide a new type of sound detection start system to solve the above problems in the prior art.
Disclosure of Invention
The invention aims to provide a sound detection starting system which can improve the accuracy of the starting time of video playing equipment in event activities.
In order to achieve the above object, the sound detection starting system of the present invention is used for starting an event activity, and includes a sound collection module, a filtering module and a processing module, wherein the sound collection module is used for collecting the sound of the crowd at the event activity site and converting the sound into an audio numerical value; the filtering module is used for filtering noise in the audio numerical value and smoothing the audio numerical value to obtain an audio contrast numerical value; the processing module is used for comparing the audio comparison value with a starting threshold value and judging whether a starting signal is sent or not so as to start the event activity through the video playing equipment.
The invention has the beneficial effects that: including sound collection module, filtering module and processing module, through sound collection module gathers the on-the-spot crowd's sound of event activity to turn into audio numerical value, through whether the audio numerical value comes the judgement and sends start-up information, with start-up event activity through video playback equipment, avoided artificial start-up factor's interference, thereby guaranteed the accuracy of equipment start-up time.
Preferably, the audio capturing module comprises at least one audio capturing unit.
Further preferably, the audio receiving range of the audio collecting unit is 31.5Hz to 8 kHz.
Preferably, the filtering module is a low-pass digital filter.
Further preferably, the low-pass digital filter is one or more of a gaussian filter, an average filter and a median filter.
Preferably, the processing module includes a threshold setting module, a starting signal transmission control module and a starting signal transmission module, the threshold setting module is configured to set a starting threshold, and the starting signal transmission control module is configured to determine whether the starting signal transmission module sends the starting signal.
Further preferably, the start signal transmission control module includes a threshold comparison module and a timing module, the threshold comparison module is configured to compare the audio comparison value with the start threshold, the timing module is configured to record a duration that the audio comparison value is greater than or equal to the start threshold, and the start signal transmission module transmits the start signal when the duration is greater than or equal to the transmission threshold.
Preferably, the voice filtering device further comprises a wireless transmission module and a wireless receiving module, wherein the wireless transmission module is wirelessly connected with the wireless receiving module, the wireless transmission module is connected with the voice collecting module, and the wireless receiving module is connected with the filtering module.
Drawings
Fig. 1 is a block diagram of a sound detection start system according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and similar words are intended to mean that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.
To solve the problems in the prior art, an embodiment of the present invention provides a sound detection starting system, which is used for event activity starting, and referring to fig. 1, the sound detection starting system is applied to an activity event starting ceremony, the sound detection starting system 10 includes a sound collection module 11, a filtering module 12 and a processing module 13, an output end of the sound collection module 11 is connected to an input end of the filtering module 12, an output end of the filtering module 12 is connected to an input end of the processing module 13, and an output end of the processing module 13 is connected to a display device. The voice acquisition module 11 is configured to acquire the voices of the crowd at the event activity site and convert the voices into audio values, the filtering module 12 is configured to filter the noise in the audio values and smooth the audio values to obtain audio comparison values, and the processing module 13 is configured to compare the audio comparison values with a start threshold value and determine whether to send a start signal to start the event activity through a video playing device.
In some preferred embodiments of the present invention, referring to fig. 1, the processing module 13 includes a threshold setting module 131, a starting signal transmission control module 132, and a starting signal transmission module 133, where the threshold setting module 131 is configured to set a starting threshold, and the starting signal transmission control module 132 is configured to determine whether the starting signal transmission module 133 sends the starting signal.
In some preferred embodiments of the present invention, referring to fig. 1, the start signal transmission control module 132 includes a threshold comparison module 1321 and a timing module 1322, the threshold comparison module 1321 is configured to compare the audio comparison value with the start threshold value, the timing module 1322 is configured to record a duration of the audio comparison value being greater than or equal to the start threshold value, and when the duration is greater than or equal to a sending threshold time, the start signal transmission module 133 sends the start signal.
In some preferred embodiments of the present invention, the sound detection starting system further includes a wireless transmission module and a wireless receiving module, the wireless transmission module is wirelessly connected to the wireless receiving module, the wireless transmission module is connected to the sound collection module, and the wireless receiving module is connected to the filtering module. Specifically, the wireless transmission module and the wireless receiving module are connected by bluetooth.
In some preferred embodiments of the invention, the audio acquisition module comprises at least one audio acquisition unit. Specifically, the audio acquisition unit is one of a microphone or a decibel meter.
In some preferred embodiments of the present invention, the audio receiving range of the audio capturing unit is 31.5Hz to 8 kHz.
In some preferred embodiments of the present invention, the filtering module is a low-pass digital filter for removing high-frequency noise in the audio information.
In some embodiments of the invention, the low-pass digital filter is a combination of one or more of a gaussian filter, an average filter and a median filter.
Although the embodiments of the present invention have been described in detail hereinabove, it is apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it is to be understood that such modifications and variations are within the scope and spirit of the present invention as set forth in the following claims. Moreover, the invention as described herein is capable of other embodiments and of being practiced or of being carried out in various ways.
Claims (8)
1. A sound detection starting system is used for starting event activities and is characterized by comprising a sound acquisition module, a filtering module and a processing module,
the voice acquisition module is used for acquiring the voice of the masses at the event activity site and converting the voice into an audio numerical value;
the filtering module is used for filtering noise in the audio numerical value and smoothing the audio numerical value to obtain an audio contrast numerical value;
the processing module is used for comparing the audio comparison value with a starting threshold value and judging whether a starting signal is sent or not so as to start the event activity through the video playing equipment.
2. The sound detection activation system of claim 1, wherein the audio capture module comprises at least one audio capture unit.
3. The sound detection start system according to claim 2, wherein the audio frequency receiving range of the audio frequency collecting unit is 31.5Hz to 8 kHz.
4. The sound detection activation system of claim 1, wherein the filtering module is a low pass digital filter.
5. The sound detection activation system of claim 4, wherein the low-pass digital filter is one or more of a Gaussian filter, an average filter, and a median filter.
6. The sound detection start system according to claim 1, wherein the processing module includes a threshold setting module, a start signal transmission control module, and a start signal transmission module, the threshold setting module is configured to set a start threshold, and the start signal transmission control module is configured to determine whether the start signal transmission module transmits the start signal.
7. The sound detection activation system of claim 6, wherein the activation signal emission control module comprises a threshold comparison module and a timing module, the threshold comparison module is configured to compare the audio comparison value with the activation threshold value, the timing module is configured to record a duration of the audio comparison value being greater than or equal to the activation threshold value, and the activation signal emission module emits the activation signal when the duration is greater than or equal to a transmission threshold time.
8. The sound detection starting system according to claim 1, further comprising a wireless transmission module and a wireless receiving module, wherein the wireless transmission module is wirelessly connected with the wireless receiving module, the wireless transmission module is connected with the sound collection module, and the wireless receiving module is connected with the filtering module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010165362.1A CN111145784A (en) | 2020-03-11 | 2020-03-11 | Sound detection starting system |
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| CN202010165362.1A CN111145784A (en) | 2020-03-11 | 2020-03-11 | Sound detection starting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112109632A (en) * | 2020-09-23 | 2020-12-22 | 重庆凯瑞特种车有限公司 | Sanitation car facial make-up intelligence voice control system device |
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2020
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Application publication date: 20200512 |