CN101808208B - Television and method for setting sound effect mode of same - Google Patents

Abstract

The invention is suitable for the technical field of televisions and provides a television and a method for setting sound effect modes of the television. The method comprises the following steps of: a. analyzing current audio data and acquiring audio attribute information of the current audio data; and b. determining the sound effect mode corresponding to the current audio data according to the audio attribute information. The technical scheme provided in the invention enables that the television can automatically select the sound effect mode according to the audio attribute information according to the current audio data so that the actual sound effect can correspond to an audio code stream and the real sound effect of a program can be reproduced, which brings better use experience to a user.

Description

Method for setting sound effect mode of TV set and TV set

technical field

The invention belongs to the technical field of televisions, and in particular relates to a method for setting sound effect modes of a television set and the television set.

Background technique

At present, with the development of the TV industry, especially with the popularization of digital TV, more and more channels can be watched on the TV. The types of programs broadcast by various channels are also increasingly rich, including music, movies, news and sports. These different types of programs have different requirements for sound. For example, music programs and movie programs require a better dynamic response range for music reproduction, and sports programs require a better sense of presence.

In the past TV products, TV manufacturers preset various sound effect options in the menu, and users manually select different sound effects, or according to the SI (Service Information) carried by the TV station in the broadcast digital program. The description of the program type is used to realize the system switching sound effect. The selection of the sound effect of these two sound effect selection schemes is not directly based on the characteristics of the audio stream. In some cases, it cannot reproduce the reality of the program according to the actual situation of the audio stream. sound effects.

Therefore, it is necessary to provide an optimized technical solution, so that the TV can automatically select the sound effect according to the characteristics of the audio stream.

Contents of the invention

The object of the present invention is to provide a method for setting the sound effect mode of the TV set and the TV set, aiming at solving the problem of setting the sound effect mode of the TV set according to the characteristics of the audio code stream.

The present invention is achieved in this way, a method for setting the sound effect mode of a TV set, the method comprising:

a. Analyzing the current audio data to obtain audio attribute information of the current audio data;

b. Determine the sound effect mode corresponding to the current audio data according to the audio attribute information.

Wherein step a specifically includes:

a1. Analyze the current audio data, and obtain the sampling rate, bit rate and/or coding mode information of the current audio data from the audio frame header.

Wherein step a1 also includes:

a2. Analyzing the current audio data, and obtaining information that the current audio is music or language from the auxiliary data.

Wherein step a1 also includes:

a3. Analyze the current audio data, and obtain one or more items of the following audio attribute information from the MC extension data: whether there is a center channel, whether there is surround sound, whether there is a low-frequency enhanced channel, and a mix beep mode.

Wherein after step b also includes:

c. Call the parameters corresponding to the determined sound effect mode, and set the parameters to the TV sound processing module.

The present invention also provides a TV set, the TV set includes an MCU, a memory and a sound processing module, wherein:

The MCU is used to analyze the current audio data, obtain the audio attribute information of the current audio data, determine the sound effect mode corresponding to the current audio data according to the obtained audio attribute information, and call the determined sound effect from the memory The parameters corresponding to the mode are set to the sound processing module;

The memory is used to store parameters corresponding to the sound effect mode;

The sound processing module is used to perform sound processing according to parameters corresponding to the sound effect mode.

Described MCU comprises the audio data parsing module connected in sequence, sound effect mode judgment module and sound effect parameter calling module, wherein:

The audio data parsing module is used for parsing the current audio data to obtain audio attribute information of the current audio data;

The sound effect mode judging module is used to determine the sound effect mode corresponding to the current audio data according to the acquired audio attribute information;

The audio parameter calling module is used to call the parameters corresponding to the determined sound effect mode from the memory, and set the parameters corresponding to the sound effect mode to the sound processing module.

The audio attribute information includes one or more of the following information: sampling rate, bit rate, encoding mode, music or language, whether there is a center channel, whether there is surround sound, whether there is a low-frequency enhancement channel and reverb mode.

The sound effect modes include theater sound effect mode, sports sound effect mode, music sound effect mode and news sound effect mode.

The present invention overcomes the deficiencies of the prior art, pre-stores parameters corresponding to various sound effect modes in the memory, and the TV parses the current audio data, acquires the audio attribute information of the current audio data, and determines the current audio data according to the acquired audio attribute information For the applicable sound effect mode, set the parameters corresponding to the determined sound effect mode to the TV sound processing module. The technical solution provided by the invention enables the TV to automatically select the sound effect mode according to the audio attribute information of the current audio data, so that the actual sound effect can correspond to the audio code stream, and the real sound effect of the program can be reproduced, bringing users a better experience .

Description of drawings

Fig. 1 is a schematic diagram of a TV set provided by an embodiment of the present invention;

Fig. 2 is a flowchart of an embodiment of the present invention.

Detailed ways

The technical solution provided by the present invention is: pre-store the parameters corresponding to various sound effect modes in the memory, the TV parses the current audio data, obtains the audio attribute information of the current audio data, and determines the current audio data according to the obtained audio attribute information. the sound effect mode, and set the parameters corresponding to the determined sound effect mode to the TV sound processing module.

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

When specifically realizing the technical solution of the present invention, an "automatic mode" option is added in the sound effect mode menu of the TV set, and the user can realize the function provided by the technical solution of the present invention by selecting this option.

After the TV is turned on or the channel is changed, it analyzes the current audio data, and the following information can be obtained through the analysis:

1. The sampling_frequency (sampling rate), bitrate (bit rate) and mode (coding mode) can be obtained from the audio frame header;

2. Obtain the current audio as music or language from the auxiliary data (ext_ancillary_data);

3. From the MC (multi-channel audio data frame) extension data (mc_extension_data_part1()), judge whether there is a center channel through Center (center), judge whether there is surround sound through Surround (surround sound), and judge whether there is surround sound through Lfe (low frequency Enhancement) to determine whether there is a low-frequency enhancement channel, and the reverberation mode of the audio can be obtained through the audio_mix (reverb) field as a large listening room (theater, etc.) or a small listening room (bedroom, etc.).

Obtain the audio attribute information of the current audio data by analyzing the audio data, and then determine the sound effect mode corresponding to the current audio data according to Table 1. For example, in the current audio attribute information obtained from the analysis, the auxiliary data type indicates that the current audio data is "music" , the reverberation mode is "large listening room", Center indicates "with center channel", Surround indicates "with surround sound", Lfe indicates "with low frequency enhancement", the sampling rate is "24khz or above", and the bit rate is "128kbps～384kbps", the encoding mode is "two-channel, stereo", then the sound effect mode corresponding to the current audio data is theater (movie) mode.

Table I

According to the analysis of the current audio data to obtain its audio attribute information, after determining the sound effect mode corresponding to the current audio data, call the parameters corresponding to the sound effect mode from the memory, and set these parameters to the TV sound processing module, such as the register of the power amplifier chip middle. The parameters corresponding to various sound effect modes are stored in the memory, and its specific implementation is a technology well known to those skilled in the art, so details will not be described here.

The principle diagram of the TV set provided by the embodiment of the present invention is shown in Figure 2, including a control signal receiving module, a display module, a tuning and demultiplexing module, a decoding module, an MCU (microcontroller), a memory and a sound processing module.

Wherein, the control signal receiving module is connected with the MCU, and is used to receive the control signal sent by the user through the remote control or the control panel of the TV. And check the "Automatic Mode" option;

The tuning and demultiplexing module is connected with the decoding module to receive TV signals, and output TS streams to the decoder after demultiplexing;

The decoder is connected to the MCU, and is used to decode the TS stream transmitted by the tuning and demultiplexing module, and output audio data to the MCU;

The MCU is connected to the memory to analyze the audio data, obtain the audio attribute information of the current audio data, determine the sound effect mode corresponding to the current audio data according to the obtained audio attribute information, and then call the parameter setting corresponding to the sound effect mode from the memory to Sound processing module; in addition, the MCU is also used to analyze the control signal received by the control signal receiving module, and call the sound effect mode menu to send the display module according to the analysis result;

Specifically, the MCU includes an audio data analysis module, a sound effect mode judgment module, and a sound effect mode parameter calling module connected in sequence, wherein the audio data analysis module is used to analyze the current audio data to obtain the audio attribute information of the current audio data, and the sound effect mode The mode judgment module is used to determine the sound effect mode corresponding to the current audio data according to the audio attribute information, and the audio mode parameter calling module is used to call the parameters corresponding to the determined sound effect mode from the memory, and set the parameters corresponding to the sound effect mode to the sound processing module ;

The display module is used to display the sound effect mode menu, so that the user can select;

The memory is connected to the MCU and is used to store parameters corresponding to various sound effect modes. In the embodiment of the present invention, the memory uses NVRAM (non-variable RAM).

The flow chart of the embodiment of the present invention is shown in Figure 2, which specifically includes the following steps:

1. The user selects the automatic mode option from the sound effect menu;

2. Receive TV signals and obtain current audio data;

3. Analyze the current audio data to obtain the audio attribute parameters of the current audio data;

4. Determine the sound effect mode corresponding to the current audio data according to the audio attribute parameters;

5. Read the parameter settings corresponding to the sound effect mode from the memory to the sound processing module.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (8)

1. the method that arranges of a sound effect mode of same, described method comprises:

A, current voice data is resolved, obtain the audio attribute information of described current voice data, described audio attribute information comprises sample rate, bit rate and the coding mode information of voice data;

B, determine according to described audio attribute information the audio pattern that described current voice data is corresponding.

2. method according to claim 1, is characterized in that, wherein step a also comprises:

A1, described current voice data is resolved, obtain the information that current audio frequency is music or language from auxiliary data.

3. method according to claim 1, is characterized in that, wherein step a also comprises:

A2, described current voice data is resolved, from multichannel audio data frame growth data, obtain in following audio attribute information one or multinomial: have or not center channels, have or not surround sound, have or not low frequency to strengthen sound channel and reverberation pattern.

4. method according to claim 1, is characterized in that, wherein also comprises after step b:

C, call parameter corresponding to determined audio pattern, described parameter is set to the television sound processing module.

5. a television set, is characterized in that, described television set comprises MCU, memory and sound processing module, wherein:

Described MCU is used for current voice data is resolved, and obtains the audio attribute information of described current voice data, and described audio attribute information comprises sample rate, bit rate and the coding mode information of voice data; Determine according to the audio attribute information of obtaining the audio pattern that described current voice data is corresponding, call parameter corresponding to determined audio pattern and be set to described acoustic processing module from memory;

Described memory is used for storing parameter corresponding to described audio pattern;

Described acoustic processing module is used for the parameter corresponding according to described audio pattern and carries out acoustic processing.

6. television set according to claim 5, is characterized in that, described MCU comprises voice data parsing module, audio mode decision module and the sound effect parameters calling module that connects successively, wherein:

Described voice data parsing module is used for described current voice data is resolved, and obtains the audio attribute information of described current voice data;

Described audio mode decision module is used for determining according to the audio attribute information of obtaining the audio pattern that described current voice data is corresponding;

Described audio frequency parameter calling module is used for calling parameter corresponding to determined audio pattern from described memory, parameter corresponding to described audio pattern is set to the acoustic processing module.

7. television set according to claim 5, it is characterized in that, described audio attribute information comprises in following information one or multinomial: music or language, have or not center channels, have or not surround sound, have or not low frequency to strengthen sound channel and reverberation pattern.

8. television set according to claim 5, is characterized in that, described audio pattern comprises theater audio pattern, physical culture audio pattern, music audio pattern and news audio pattern.

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