KR102056270B1 - Method for providing related contents at low power - Google Patents

Abstract

In accordance with an aspect of the present invention, there is provided a related content providing method, comprising: a sound wave output step of receiving a sound wave data from a content server, and outputting sound waves corresponding to the sound wave data by a main content playback device for playing the main content; A sound wave ID extraction step of causing the terminal that detects the sound wave to extract a sound wave ID corresponding to the sound wave; And a related content output step of selecting the related content corresponding to the sound wave ID and outputting the related content to the terminal.

Description

How to provide low power-related content {METHOD FOR PROVIDING RELATED CONTENTS AT LOW POWER}

The present invention relates to a low power related content providing method and a content server, and more particularly to a low power related content providing method and a content server that can provide the low-power associated content through a user's terminal.

With the development of Internet technology, it is becoming popular that computer-related services are provided through the Internet. In particular, as music providing services through various music broadcastings or various music-related servers are activated, music providing via the Internet replaces music tapes or CDs. I'm doing it.

Accordingly, the listener can select his or her desired music and receive it in real time through the Internet without purchasing a music tape or CD directly.

Meanwhile, the development of marketing and service technology using emotion is developing to music.

As a kind of emotional marketing that stimulates the five senses, concepts related to music marketing have begun to emerge.

Music marketing is recognized as promoting sales by stimulating customers' purchase psychology by playing different music at different times, places, businesses and businesses.

In particular, it provides background music to stores in the form of centrally managing multiple merchants. In order to play music data, music is provided by a streaming service so that all merchants do not need to purchase music data individually. have.

In a web site that provides a streaming service, a user typically prepares a list of multimedia data to be played and registers the same in a web site. When the user selects such a list, the multimedia data in the list is sequentially played.

According to such a store music providing service, it is possible to obtain a convenience that the state of being sequentially played according to the set list once does not need to be determined each time the multimedia data to be played.

In addition, without having to operate a separate organization within the store to broadcast music, the operator can select and broadcast music that matches the atmosphere of the store every hour.

Furthermore, the technology of providing advertisements and related contents for each store as well as a function of simply broadcasting music to the store has attracted attention.

In these techniques, there is still a problem that listeners must actively request related content using a mobile receiver.

That is, in order to receive the related content at the time of playing the content, the application of the mobile receiver must be executed or the content recognition should be instructed to the application of the mobile receiver providing the related content.

As such, a separate effort is required for receiving related content because it is opposed to a behavior pattern of a viewer or listener who passively enjoys the content, or because a separate effort interferes with the immersion of the viewer or listener. The utility of the content may be diminished.

On the other hand, such a problem can be solved by the mobile receiver continually extracting acoustic features or inaudible sound waves, but this causes a power shortage problem for a mobile battery operated with limited battery.

An object of the present invention is to provide a low power related content providing method and a content server capable of providing related content at low power through a user terminal.

The problem to be solved by the present invention is not limited to the above-described problem, the objects that are not mentioned will be clearly understood by those skilled in the art from the present specification and the accompanying drawings. .

In accordance with an aspect of the present invention, there is provided a related content providing method, comprising: a sound wave output step of receiving a sound wave data from a content server, and outputting sound waves corresponding to the sound wave data by a main content playback device for playing the main content; A sound wave ID extraction step of causing the terminal that detects the sound wave to extract a sound wave ID corresponding to the sound wave; And a related content output step of selecting the related content corresponding to the sound wave ID and outputting the related content to the terminal.

According to the low power related content providing method according to an embodiment of the present invention, there is an advantage that can provide the related content at low power through the user's terminal.

The effects of the present invention are not limited to the above-described effects, and effects that are not mentioned will be clearly understood by those skilled in the art from the present specification and the accompanying drawings.

1 is a schematic block diagram of a configuration for implementing a method for providing related content according to an embodiment of the present invention.
2 is a schematic flowchart illustrating a related content providing method according to an embodiment of the present invention;
3 and 4 are schematic diagrams for explaining the sound wave ID extraction step in the associated content providing method according to an embodiment of the present invention.
5 is a schematic flowchart illustrating a sound wave ID extraction step in a related content providing method according to an embodiment of the present invention.
6 and 7 are schematic configuration diagrams for explaining the sound wave ID extraction step in the related content providing method according to an embodiment of the present invention.
8 is a schematic structural diagram of a content server according to an embodiment of the present invention;

Hereinafter, with reference to the drawings will be described in detail a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention may deteriorate other inventions or the present invention by adding, modifying, or deleting other elements within the scope of the same idea. Other embodiments that fall within the scope of the inventive concept may be readily proposed, but they will also be included within the scope of the inventive concept.

In accordance with an aspect of the present invention, there is provided a related content providing method, comprising: a sound wave output step of receiving, by a main content player for reproducing main content, sound wave data from a content server and outputting sound waves corresponding to the sound wave data; A sound wave ID extraction step of causing the terminal that detects the sound wave to extract a sound wave ID corresponding to the sound wave; And a related content output step of selecting the related content corresponding to the sound wave ID and outputting the related content to the terminal.

The sound wave output from the main content reproducing apparatus may include a sync sound wave and a data sound wave. The sound wave ID extracting step may include extracting the sound wave ID based on the data sound wave when the sync sound wave is detected. If the sync sound wave is not detected, the sound wave ID may not be extracted.

The data sound wave may include a first data sound wave and a second data sound wave whose frequency does not overlap with the first data sound wave, and the sync sound wave, the first data sound wave, and the second data sound wave overlap each other. It may not be.

The sound wave ID extracting step may include a data sound wave restoration step of restoring the data sound wave lost due to interference of other sound waves.

The data sound wave restoring step may restore the lost data sound wave by connecting the data sound waves which are not lost.

The sound wave output from the main content reproducing apparatus includes an ultrasonic wave and an audible sound wave, and the sound wave ID includes an ultrasonic wave ID extracted based on the ultrasonic wave and an audible sound wave ID extracted based on the audible sound wave. The outputting of the related content may select the related content based on the ultrasound ID and the audible sound wave ID.

The sound wave ID extracting step may extract the audible sound wave ID based on the audible sound wave when the ultrasonic wave ID is extracted, and may not extract the audible sound wave ID when the ultrasonic wave ID is not extracted.

The ultrasound ID may be data regarding the main content reproduction apparatus, and the audible sound wave ID may be data regarding the main content.

According to another aspect of the present invention, a content server includes: a transmitter configured to transmit sound wave data to the main content player so that a main content player that plays main content plays sound waves; A receiver for receiving a sound wave ID extracted based on the sound wave from a terminal that detects the sound wave; And a selecting unit to select the related content so that the related content corresponding to the sound wave ID is output to the terminal.

Components having the same functions within the scope of the same idea shown in the drawings of each embodiment will be described using the same reference numerals.

1 is a schematic block diagram of a configuration for implementing a related content providing method according to an embodiment of the present invention, Figure 2 is a schematic flow chart illustrating a related content providing method according to an embodiment of the present invention.

3 and 4 are schematic diagrams for explaining a sound wave ID extraction step in a related content providing method according to an embodiment of the present invention, Figure 5 is a sound wave ID extraction step in a related content providing method according to an embodiment of the present invention It is a schematic flowchart for explaining.

6 and 7 are schematic structural diagrams for explaining a sound wave ID extraction step in a related content providing method according to an embodiment of the present invention, Figure 8 is a schematic structural diagram of a content server according to an embodiment of the present invention. .

In the accompanying drawings, in order to more clearly express the technical idea of the present invention, parts that are not related to the technical idea of the present invention or can be easily derived from those skilled in the art will be simplified or omitted.

First of all, the definition of terms is

Content: Refers to information that provides educational, cultural, informational, and / or entertainment value in structured digital data in the form of video, sound, or sound and image.

Content playback device: A device that plays content, such as a TV, radio, desktop computer, or mobile device (e.g., laptop computer, tablet computer, smartphone, wearable computer, etc.) to play sound or speakers It may further include a monitor or an image output terminal for displaying an image.

Content: i) may mean main content or related content, or ii) both main content and related content.

Main content: Content that is output (broadcast or played) through the content player.

Related Content: Content that is output through the terminal, information such as sound, video, documents, Internet addresses, and / or digital identifiers associated with the content or background of the main content output through the content playback device. It means a value or a content with independent information that is not related to the main content.

1 to 7, the method for providing related contents according to an embodiment of the present invention may be implemented by the content server A, the main content player B, and the terminal C. FIG.

For example, the associated content providing method may include a sound wave output step S100 of receiving a sound wave data from a content server A and outputting a sound wave corresponding to the sound wave data from a main content player B for playing main content. It may include.

For example, the content server A, the main content playback device B, and the terminal C may communicate with each other to transmit and receive data.

For example, the content server A may transmit the sound wave data to the main content playback device B. FIG.

For example, the main content player B may receive the sound wave data from the content server A and output the sound wave corresponding to the sound wave data to the outside.

For example, when the content server A transmits first sound wave data to the main content server A, the main content server A may output first music corresponding to the first sound wave data to the outside. When the content server A transmits second sound wave data to the main content server A, the main content server A may output the second music corresponding to the second sound wave data to the outside. Can be.

Here, the related content providing method according to an embodiment of the present invention may further include a sound wave ID extracting step (S200) for allowing the terminal C, which detects the sound wave, to extract a sound wave ID corresponding to the sound wave. .

For example, the terminal C is a device capable of outputting related content, and includes a microphone and an analog-digital converter (ADC) to analyze the sound wave, and may analyze the sound wave to identify the main content. The mobile terminal may be a mobile device that provides the related content to a user in a visual or auditory form.

In this case, the user may be a person who owns the terminal (C). For example, the terminal C may be a mobile device such as a laptop computer, a tablet computer, a smartphone, or a wearable computer.

For example, the terminal C may detect the sound wave, and analyze the sound wave to extract the sound wave ID corresponding to the sound wave.

For example, the sound waves may include non-audible sound waves and audible sound waves, and for example, the non-audible sound waves may be ultrasonic waves.

For example, the sound wave ID may be a digital data obtained by extracting / converting predetermined data from an audible sound wave (for example, an ultrasonic wave) artificially inserted into the sound wave of the main content or an audible sound wave of the main content itself. Can mean.

Here, as an example, the related content providing method according to an embodiment of the present invention includes the related content output step (S300) for selecting the related content corresponding to the sound wave ID and outputting the related content to the terminal (C). It may include.

In one example, the associated content output step (S300) may be implemented in the content server (A).

For example, the content server A may receive the sound wave ID from the terminal C, and select the related content corresponding to the sound wave ID based on the received sound wave ID.

For example, when the sound wave ID is the first sound wave ID, the content server A may select first associated content corresponding to the first sound wave ID, and the second sound wave whose sound wave ID is different from the first sound wave ID. In the case of ID, second related content corresponding to the second sound wave ID may be selected.

For example, the content server A may select the related content corresponding to the sound wave ID among a plurality of the related content and transmit the related content to the terminal C, and the terminal C transmits the related content. The related content may be received from the content server A to play / output the related content through a display and / or a speaker.

The above-described related content output step S300 may be implemented by the content server A, but is not limited thereto. The related content output step S300 may be implemented by the main content playback device B or the terminal. It may also be implemented in C).

Furthermore, the content server A, the main content playback device B, and / or the terminal C may be implemented in cooperation with each other.

For example, the main content reproducing apparatus B may receive the sound wave ID from the terminal C to select the related content or directly output the selected related content to the outside.

Here, in one example, the sound wave output from the main content playback device (B) may include a sync sound wave (E) and a data sound wave (F).

For example, the sync sound wave E and the data sound wave F may be non-audible sound files, and may be ultrasonic waves.

Here, as an example, the sound wave ID extracting step S200 may extract the sound wave ID based on the data sound wave F when the sync sound wave E is detected, and detect the sync sound wave E. If not, the sound wave ID may not be extracted.

Referring to FIG. 5, in more detail, as an example, the terminal C may implement a first capture to capture the sound wave through a microphone.

In one example, the first capture can be implemented for a time that can capture at least one packet or a portion of one packet in the repeated packet.

In one example, the first capture may be implemented for 0.1 seconds.

Here, the terminal C converts the sound wave obtained by the first capture (fast Fourier transform, FFT) to determine whether a peak exists in the sync sound wave E, that is, whether a peak exists in the sync band. Can be determined.

If the peak of the sync sound wave E does not exist in the sound wave obtained by the first capture, the terminal C does not implement the first capture for a time longer than the first capture time. Sleep state can be implemented.

In one example, the sleep time may be implemented for three seconds.

As a result, the terminal C may, for example, implement the first capture for another 0.1 seconds after 3 seconds of the sleep state, and if the peak does not exist in the sink sound wave E, the terminal C may return to the sleep state 3 again. Can last for seconds.

Here, if a peak exists in the sync sound wave E, the terminal C may implement a second capture to capture the sound wave through a microphone.

In one example, the second capture may be implemented at a time capable of capturing at least one packet in the repeated packet.

Here, the terminal C may convert the sound wave obtained by the second capture, and detect peaks of the sync sound wave E and / or the data sound wave F.

Next, the start point of the sync sound wave E may be determined, that is, one packet may be defined by detecting the start point by detecting the sync band.

The data band for the data sound wave F may be detected based on the sync band.

Next, the sound wave ID may be extracted through decoding based on the data sound wave F. FIG.

As a result, the sound wave ID extracting step S200 may extract the sound wave ID based on the data sound wave F when the peak of the sync sound wave E is detected, and the peak of the sync sound wave E may be extracted. If not detected, the sound wave ID may not be extracted.

For example, when the sync sound wave E is described above, it may mean that a peak of the sync sound wave E is detected, or when the sync sound wave E is not detected, the sync sound wave ( It may mean that the peak of E) is not detected.

Here, for example, the sound wave ID extracting step S200 may include a data sound wave F restoration step of restoring the data sound wave F lost due to interference of other sound waves.

For example, as illustrated in FIG. 4A, some of the data sound waves F may be lost due to unintended interference of other sound waves.

In order to restore the lost data sound wave F, the restoring of the data sound wave F may be performed by connecting the data sound waves F which are not lost, as shown in FIG. Sound wave F can be restored.

After restoring the data sound wave F, the sound wave ID may be extracted through decoding based on the restored data sound wave F. FIG.

In the following, the sound wave will be described in more detail with reference to FIG. 3.

For example, the sound wave output from the main content playback device B may be an ultrasonic wave, and may include the sink sound wave E and the data sound wave F. FIG.

For example, the sync sound wave E and / or the data sound wave F may be chirp signals.

That is, the sync sound wave E and / or the data sound wave F may be configured as chirp signals on the frequency-time plane such that there are no discontinuities.

As a result, it is possible to eliminate a phenomenon in which the sound generated based on the discontinuous signal is splashed, and in addition, the restoration step can be more easily implemented in that the sync sound wave E and / or the data sound wave F are chirp signals. Can be.

The sync sound wave E and the data sound wave F may form one packet, and the sound wave may include one packet repeatedly.

The data sound wave F may include a first data sound wave F1 and a second data sound wave F2 whose frequency does not overlap with the first data sound wave F1.

Since the first data sound wave F1 and the second data sound wave F2 are formed in parallel with each other, the data capacity of the first data sound wave F1 and the second data sound wave F2 may be increased.

That is, the first data sound wave F1 and the second data sound wave F2 are combined and decoded, and thus, there is an advantage of having a larger data capacity.

Here, as an example, the frequency of the first data sound wave F1 may not overlap with the frequency of the second data sound wave F2.

That is, the first data sound wave F1 may be a sound file having a frequency within a specific region, and the second data sound wave F2 may have a sound having a frequency outside the specific region that the first data sound wave F1 has. Can file.

As a result, the terminal C may distinguish the first data sound wave F1 and the second data sound wave F2 based on the frequency domain.

Furthermore, the sync sound wave E, the first data sound wave F1 and the second data sound wave F2 may not overlap each other.

As a result, the terminal C may distinguish the sync sound wave E, the first data sound wave F1, and the second data sound wave F2 based on a frequency domain.

Hereinafter, the related content providing method according to an embodiment of the present invention will be described in more detail with reference to FIGS. 6 and 7.

As shown in FIG. 6, for example, the sound wave output from the main content playback device B may include an ultrasonic wave and an audible sound wave.

Referring to FIG. 1, the ultrasound may receive the ultrasound signal from the ultrasound generating device D and generate the specific ultrasound based on the ultrasound signal and output it to the outside.

For example, the ultrasound generation device D may receive an ultrasound signal from the content server A and transmit a specific ultrasound signal to the main content playback device B.

In another example, the ultrasonic wave generator D may not transmit an ultrasonic signal from the content server A, but may transmit a specific ultrasonic signal stored in advance to the main content playback device B.

In addition, although not shown in the drawing, the ultrasonic wave is transmitted through the sound wave data transmitted from the content server A to the main content playback device B without passing through the ultrasonic wave generation device D. It may be generated from and output to the outside.

Referring back to FIG. 6, as an example, the main content reproducing apparatus B may output the sound wave including the ultrasonic wave and the audible sound wave to the outside.

Here, for example, the audible sound wave may be music.

Here, for example, the sound wave ID may include an ultrasound ID extracted based on the ultrasound wave and an audible sound wave ID extracted based on the audible sound wave.

For example, the ultrasound may be generated by the ultrasound generating device D, and may be a basis for extracting the ultrasound ID.

For example, the audible sound wave may be a sound file according to music, and as another example, an ultrasound specific to music (which may mean an ultrasound having a frequency different from that of the ultrasound that is the basis for extracting the ultrasound ID) may be included. It may mean a sound wave and may serve as a basis for extracting the audible sound wave ID.

For example, the ultrasound ID may be calculated from the ultrasound by the configuration described above with reference to FIG. 5.

In FIG. 6, the ultrasonic decoder 100 may be a generic term for the configuration described with reference to FIG. 5 as one configuration of the terminal C. Referring to FIG.

In one example, the audible sound wave ID may be calculated in the terminal (C).

For example, FIG. 7 illustrates the configuration of the related content identification unit 200 of FIG. 6 in more detail. The related content identification unit 200 may be a configuration of the terminal C, which is illustrated in FIG. 7. As described above, the terminal C may extract the query DNA for the audible sound wave through a microphone, and calculate the audible sound wave ID by matching the query DNA with a reference DNA set in a matching unit.

For example, the DNA set may be previously stored in the terminal C, or may be received from the content server A in real time.

If the audible sound wave is the first music, the audible sound wave ID calculated from the first music may be a first audible sound wave ID, and if the audible sound wave is the second music, the audible sound wave ID calculated from the second music May be the second audible sound wave ID.

Here, the related content output step (S300) may select the related content based on the ultrasound ID and the audible sound wave ID.

For example, the associated content selected when the ultrasound ID is the first ultrasound ID among the first ultrasound ID and the second ultrasound ID and the audible sound wave ID is the first audible sound wave ID may be first related content. The related content selected when the ultrasound ID is the first ultrasound ID or the audible sound wave ID is the second audible sound wave ID may be second related content different from the first related content.

Here, if the ultrasound ID is data relating to the main content playback device B, and the audible sound wave ID is data relating to the main content, the associated content output step S300 may be a small number of the ultrasound IDs. And / or having the audible sound wave ID has an advantage of selecting one of a plurality of related content items through a combination of the ultrasound ID and the audible sound wave ID.

For example, the data regarding the main content player B may be data including a location where the main content player B is installed.

For example, the data regarding the main content may be data including the type of the main content.

In more detail, if the first ultrasound ID is a main content playback device (B) installed in a cafe, and the second ultrasound ID is a main content playback device (B) installed in a cosmetic store. Assuming that even if the same music is played back from the main content playback device B installed in each of the first audio sound wave IDs, the first ultrasound ID and the first audible sound are output in the associated content output step S300. A sound wave ID is combined to output a first associated content to the terminal (C) located in a cafe, and the second ultrasound ID and the first audible sound wave ID are combined to the terminal (C) located in a cosmetic shop. ) May output second related content.

In addition, as an example, as shown in Figure 6, the sound wave ID extraction step (S200) when the ultrasonic wave ID is extracted the audible sound wave ID based on the audible sound wave, the ultrasonic wave ID is not extracted In this case, the audible sound wave ID may not be extracted.

In more detail, the terminal C first executes the ultrasonic decoder 100 to drive the associated content identification unit 200 when the ultrasonic ID is calculated from the ultrasonic decoder 100. The audible sound wave ID can be calculated.

If the ultrasound ID is not extracted from the ultrasound decoder 100, the terminal C may not drive the related content identification unit 200.

As a result, the related content identification unit 200 can be always listened to the problem that the power consumption increases.

As shown in FIG. 8, the content server A according to another embodiment of the present invention provides the sound wave data to the main so that the main content player B for playing the main content reproduces the sound waves. Corresponding to the transmitter A100 for transmitting to the content reproducing apparatus B, the receiver A200 for receiving the sound wave ID extracted based on the sound wave from the terminal C detecting the sound wave, and the sound wave ID. It may include a selection unit (A300) for selecting the related content so that the related content is output to the terminal (C).

For example, the content server A may transmit audible sound wave data to the main content playback device B such that the main content playback device B outputs an audible sound wave.

For example, the content server A may transmit ultrasound data to the ultrasound generating device D so that the ultrasound generating device D transmits specific ultrasound data to the main content playing device B.

In addition, as an example, the content server A directly applies the ultrasonic data to the audible sound wave data without passing through the ultrasonic wave generator D, and the audio data is applied to the main content playback device B. Sound wave data may also be transmitted.

For example, the content server A may further include a memory unit A400 that stores the related content, data for the main content, and / or data for the sound wave ID.

In the above description of the configuration and features of the present invention based on the embodiment according to the present invention, the present invention is not limited thereto, and various changes or modifications can be made within the spirit and scope of the present invention. It will be apparent to those skilled in the art that such changes or modifications fall within the scope of the appended claims.

A: Content Server
B: main content player
C: terminal
D: Ultrasonic Generator

Claims (9)

A sound wave output step of receiving a sound wave data from a content server, and outputting a sound wave corresponding to the sound wave data by a main content reproducing apparatus for reproducing main content;
A sound wave ID extracting step of extracting a sound wave ID corresponding to the sound wave by the terminal detecting the sound wave; And
And a related content outputting step, wherein the content server receives the sound wave ID from the terminal, selects related content corresponding to the sound wave ID, and transmits the related content to the terminal so that the related content is output to the terminal.
The sound wave output from the main content player,
Includes sync sound waves and data sound waves that do not overlap each other,
The sound wave ID extraction step,
Intermittently detecting the sync sound waves,
When the sync sound wave is detected, the sound wave ID is extracted based on the data sound wave,
If the sync sound wave is not detected, the sound wave ID is not extracted.
How to provide relevant content.
delete The method of claim 1,
The data sound wave,
A first data sound wave and a second data sound wave in which frequency does not overlap with the first data sound wave,
How to provide relevant content.
A sound wave output step of receiving a sound wave data from a content server, and outputting a sound wave corresponding to the sound wave data by a main content reproducing apparatus for reproducing main content;
A sound wave ID extracting step of extracting a sound wave ID corresponding to the sound wave by the terminal detecting the sound wave; And
And a related content outputting step, wherein the content server receives the sound wave ID from the terminal, selects related content corresponding to the sound wave ID, and transmits the related content to the terminal so that the related content is output to the terminal.
The sound wave output from the main content player,
Includes sync sound waves and data sound waves that do not overlap each other,
The data sound wave,
Chirp signal,
The sound wave ID extraction step,
A data sound wave restoration step of restoring the data sound waves lost due to interference of other sound waves,
The data sound wave recovery step,
Restoring the lost data sound waves by connecting between the missing sound waves,
How to provide relevant content.
delete A sound wave output step of receiving a sound wave data from a content server, and outputting a sound wave corresponding to the sound wave data by a main content reproducing apparatus for reproducing main content;
A sound wave ID extracting step of extracting a sound wave ID corresponding to the sound wave by the terminal detecting the sound wave; And
And a related content output step of receiving, by the content server, the sound wave ID from the terminal, selecting related content corresponding to the sound wave ID, and transmitting the related content to the terminal so that the related content is output to the terminal.
The sound wave output from the main content player,
Including ultrasound and audible sound waves,
The sound wave ID is,
An ultrasound ID extracted based on the ultrasound and an audible sound wave ID extracted based on the audible sound wave,
The associated content output step,
Selecting the associated content by combining the ultrasound ID and the audible sound wave ID,
How to provide relevant content.
The method of claim 6,
The sound wave ID extraction step,
Extracting the audible sound wave ID based on the audible sound wave when the ultrasound ID is extracted,
If the ultrasonic wave ID is not extracted, the audio sound wave ID is not extracted.
How to provide relevant content.
The method of claim 7, wherein
The ultrasonic ID is,
Data relating to the main content player;
The audible sound wave ID is,
Data about the main content,
How to provide relevant content.
delete

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