KR20070110949A - Background music quality improvement method in background music call service - Google Patents

Abstract

A background music quality improvement method in a background music call service is provided to turn down the volume of background music automatically if either a caller or a receiver speaks while the volume is maintained in ordinary sound so that the user's voice can be clearly heard. If a period exceeding a setup value for deciding whether either a caller or a receiver speaks is progressed to some extent, volume of background music is turned down. If a period which is less than the setup value is progressed to some extent, the volume of the background music is turned up. Through the steps of turning down and up the volume, the background music whose volume is controlled is mixed with the caller's voice or the receiver's voice, so that the mixed sound is transmitted to the caller and the receiver(S1-S7).

Description

Background music quality improvement method in background music call service

1 illustrates a method for improving background sound quality according to the present invention.

2 is a block diagram of a system applying the method of FIG.

3 is an operational flowchart of applying the method of FIG.

The present invention relates to a method for improving the sound quality of background music when providing a background sound call service.

In a wireline telephone service or a mobile communication service, a caller mixes background music desired by a caller with a call voice so that a background music is heard during a call.

However, in the background sound providing service of the prior art, when the user makes a call while playing the background music, the user's voice is relatively low due to the background music. Therefore, the user often listens to both the voice call and the background music. Using the # or * buttons to manipulate the volume of the background sound makes the user uncomfortable.

In addition, if the user adjusts the volume of the background music at any time, the wired uses 64kbps codec, so there is no big problem. However, in wireless mobile communication, the higher the transmission speed of the voice signal, the more energy is required for transmission. The radio section is reduced in capacity and uses an 8 kbps EVRC codec. Due to its characteristics, the EVRC codec removes the music or the voice itself from the terminal at a low volume, which significantly degrades the quality of the background music.

The present invention has been proposed to solve the above problems, and proposes a method for automatically adjusting the volume of the background music according to whether the user speaks in wired / wireless communication.

In other words, if the user keeps the volume of the background music in normal use, and any one of the callers / recipients speaks, the volume of the background sound is automatically lowered so that the user's voice is heard more clearly. It is an object of the present invention to increase the volume again so that the sound quality of the background sound does not deteriorate.

In order to achieve the above object of the present invention, the present invention

In the method for providing background music during a call using a communication network,

Lowering the volume of the background music when a period of time in which the caller or called party's voice volume exceeds a predetermined value for determining whether the caller is speaking is proceeded;

Setting the volume of the background music to a high level when the voice size of the caller or the called party is less than the set value for some time;

Mixing with the voice of the caller / caller of the volume is adjusted through the step of the low state and the high state characterized in that it comprises the step of transmitting to the caller / called party.

Now, a method of actively controlling the volume of the background music by monitoring the volume of the caller / called party voice to achieve the above object will be described with reference to FIG. 1.

In FIG. 1, when a call is connected in the T1 section, a voice call is made at the end of the T2 section when a voice with a volume greater than or equal to the threshold amplitude (volume size for determining whether the user speaks) comes from the caller / called party during the T2 section. Detect. The demand for the voice to exceed the set value during the T2 section is to prevent noise from occurring for a short period and be detected as having a voice call.

When the voice call is detected as such, the volume of the background music is lowered to make the voice clearly heard, and the volume of the background music is kept low in the T3 section where the caller / caller continues to talk.

Now, if the voice of the caller / receiver is low, the caller / caller is not speaking (mute), so if the user's voice is lowered below a certain volume during the T4 interval, the silence is at the end of the T4 interval. It is detected as (Silence).

When the voice is detected in the silent state, the volume of the background music is gradually raised in the T5 section to return to the initial state. At this time, gradually increasing the volume of the background music because the caller may be surprised to suddenly increase.

Repeating the above process, if the caller / caller's voice is present, the volume of the background music is automatically lowered by making the volume of the background music sound better. In the silent state, the volume of the background music is increased to make the background music sound better. The background sound corresponding to the size can be adjusted.

Next, each configuration of the apparatus for adjusting the background sound by applying the background music volume adjusting method as described above will be described with reference to FIG. 2.

The background music service server 10 selects the desired background music by the caller accessing the background music providing site in advance, or selects the background music by pressing a specific number related to the background music service through the landline / mobile phone / internet call. When you do, save the caller's phone number and the selected background music ID.

The background music storage unit 11 stores data of various background music selectable by the caller together with the background music ID.

When the caller calls the called party, the DTMF detection unit 12 detects whether the caller presses the telephone number button.

The caller volume detector 13 and the caller volume detector 14 detect the volume of the caller and the called party, respectively, and notify the background music volume controller 15.

The background music volume control unit 15 detects whether the caller pressed the telephone number button in the DTMF detection unit 12, and the caller volume and the caller volume detected by the caller volume detection unit 13 and the caller volume detection unit 14. After receiving, the telephone number button is pressed, and when the call is connected, the background music is transmitted to the mixing unit 17 at a high level (T1 section). After that, if there is a period in which the caller volume or the caller volume exceeds a predetermined set value (T2 section), the volume of the background music input through the D / A converter 16 is controlled to a low level so as to provide a low level background music. It transfers to the mixing part 17 (T3 section). Then, if the period in which the caller volume or the caller volume falls below a predetermined set limit is maintained (T4 section), the volume of the background music is sequentially controlled to be at a high level (T5 section) to mix high level background music. Transfer to section 17 (T6 section).

The D / A converter 16 converts the background music digital data output from the background music storage unit 11 into an analog signal.

The mixing unit 17 mixes the background music whose volume output from the background music volume control unit 15 is adjusted with the caller's voice or the called party's voice to the called party's or receiver's phone (wired phone / mobile phone / internet phone). PSTN network, mobile communication network, Internet network).

Next, an operation sequence of adjusting the background volume using the background sound volume control apparatus as described above will be described with reference to FIG. 3.

Is detected.

When the call is started after DTMF detection (S1), when the related equipment (exchange, home location register, etc.) of the communication network notifies the background music service server 10 of the caller's telephone number information (S2), the background music service server 10 Determining whether or not the subscriber is subscribed to the background music service through the caller's phone number (S3).

As a result of the determination, if the subscriber sends the background music ID to the background music storage unit 11 (S4), the background music storage unit 11 outputs the background music selected by the caller (S5).

The background music volume control unit 15 controls and outputs the volume of the background music by applying the background music volume control method of FIG. 1 (S6). That is, after the call is connected, the background music is transmitted to the mixing unit 17 at a high level (T1 section), and then, if there is a period in which the caller volume or the called party volume exceeds a predetermined setting value (T2 section), By controlling the volume of the background music to a low level to transmit the low level background music to the mixing unit 17 (T3 section). Then, if the period in which the caller volume or the caller volume falls below a predetermined set limit is maintained (T4 section), the volume of the background music is sequentially controlled to be at a high level (T5 section) to mix high level background music. Transfer to section 17 (T6 section).

Next, the background music output from the background music volume control unit 15 and the volume control is mixed in the mixing unit 17 with the caller / caller voice is transmitted to the caller / caller (S7).

If the above operation sequence is applied, the volume of the background music is properly adjusted according to the volume of the call. When the caller / caller is speaking, the volume of the background music is reduced so that the voice (voice) is clearly heard. The background music can be heard clearly.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to this embodiment, but various modifications and changes can be made without departing from the spirit of the present invention.

For example, in the above description, the volume of the background music is suddenly lowered, but it is also possible to gradually lower the volume similarly to the rising time.

In addition, in the above, the caller subscribes to the background music providing service and determines whether to subscribe to the background music providing service based on the caller's phone number. In the case of a company or a store, the background related to the company or the store is called when a customer (caller) makes a call. Since it is desirable to have the music come out, it is also possible to have the receiver subscribe to the background music providing service and determine whether to subscribe to the background music providing service by the receiver's telephone number.

Using the present invention as described above, when the caller / caller talks more to the user's voice than the background music, when not talking to the background music in particular using the principle to pay more attention to the background music The sound quality is improved in the wireless section.

Claims (11)

In the method for providing background music during a call using a communication network, Lowering the volume of the background music when a period of time in which the caller or called party's voice volume exceeds a predetermined value for determining whether the caller is speaking is proceeded; Setting the volume of the background music to a high level when the voice size of the caller or the called party is less than the set value for some time; Mixing with the voice of the caller / caller of the volume control the volume of the background music through the step of the low state and the high state and transmitting to the caller / caller, the background music during the call using the communication network How to give it. The method of claim 1, The method of providing a background music during a call using a communication network, characterized in that the step of lowering is made gradually. The method of claim 1, The method of providing a background music during a call using a communication network, characterized in that the step of lowering is made gradually. The method of claim 1, The communication network provides a background music during a call using a communication network, characterized in that the wired communication network. The method of claim 1, The communication network is a method for providing background music during a call using a communication network, characterized in that the mobile communication network. The method of claim 1, The communication network is a method for providing background music during a call using a communication network, characterized in that the Internet communication network. The method of claim 1, The step of making low and the step of making high When the call connects, immediately turn up the volume of the background music, When the voice of the caller / receiver exceeds the set value to some extent, the volume of the background music is lowered, and the background music volume is kept low while the caller / caller is talking. When the voice of the caller / caller below the set value to some extent proceeds to provide a background music during the call using the communication network, characterized in that to gradually increase the volume of the background music. The method of claim 1, Subscribing to a service for providing the background music; Checking whether the caller subscribes to the service when the caller calls the called party; And as a result of the checking, if the subscriber is the background music, controlling the background music to a low state and a high state. The method of claim 8, The subscriber provides a background music during a call using a communication network, characterized in that the caller. The method of claim 8, The subscriber is a method for providing background music during a call using a communication network, characterized in that the receiver. In the system for providing a background music during a call using a communication network, A background music storage unit for storing background music; After the call is connected, if the duration of the caller or the receiver exceeds a predetermined value for determining whether the voice is being spoken, the volume of the background music output from the background music storage is lowered, and the caller or the called party is A background music volume control unit for setting the volume of the background music output from the background music storage unit to a high state when the voice size of the voice signal is less than or equal to the set value; And a mixing unit for mixing the background music output of which the volume output from the background music control unit is adjusted to the voice of the caller / caller and transmitting the caller / caller to the caller / caller.

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