KR100698847B1 - Method for audio service of mobile phone - Google Patents

Abstract

The present invention relates to an audio service method for a mobile phone, wherein the correction means provides a preset function such that an equalizer function suitable for each music genre of each song is set for each song through a user interface, and a band of a song is adapted to a user's preference. By providing user setting function for boosting / down by (band), music files are played with equalizer and user setting value set for each song, so that user can You can listen to the song similar to the original audio.

Audio service systems for mobile phones, correction means, equalizers, presets, user settings

Description

Audio service method for mobile phones {METHOD FOR AUDIO SERVICE OF MOBILE PHONE}

 1 illustrates a configuration of an audio service system for a mobile phone applied to an embodiment of the present invention.

2 is a flowchart illustrating an audio service method for a mobile phone according to an embodiment of the present invention.

3 shows a screen displayed on a mobile phone according to the equalizer setting and management according to FIG. 2, (a) shows an equalizer setting screen, (b) shows an equalizer setting screen for a specific song, and (c) shows one folder. In Equalizer Setting Management Screen, (d) shows Equalizer Setting Management Screen for EQ Folder, respectively.

The present invention relates to a mobile phone audio service method, and more particularly, to a mobile phone audio service method that can be set equalizer for each song.

With the recent rapid development of technology, the types of mobile phones (where mobile phones are personal information terminals having wireless communication functions, computing functions, and network functions, including mobile phones, PDA phones, smart phones, etc. capable of wireless Internet) and their spread rapidly The situation is rising.

These mobile phones are becoming home appliances beyond simply talking with the other party, and the performance of video devices is being realized by the release of color mobile phones that implement dual folders or stereoscopic video. In addition, by implementing the function of the sound device that can listen to music through a mobile phone, the diversity of the complex function is increasing day by day with the development of technology.

In particular, MP3, one of the multimedia compression technologies, MPEG, can compress largely without loss of audio to realize a large amount of computer music files. Therefore, the MP3 download method through a mobile phone expands the functionality of a mobile phone.

The audio service system for mobile phones for playing music files through MP3 downloads includes audio file converting means for converting a general audio file and reproducing it in a voice codec for mobile phones, and storing the converted audio file through audio file converting means. And a server means for transmitting the audio file requested by the user among the converted audio files stored in the storage means to the user's mobile phone through a communication network.

The audio service system for mobile phones utilizes correction means for correcting distortion by frequency by inverting the processing process of the voice codec for mobile phones and the characteristics of the reproduction frequency, and encoding the data corrected through the correction means through the encoding means. By encoding, the original audio can be reproduced similarly to the original audio because it is audible and immersive in the reproduction of the final result.

Specifically, the correction means is a compressor for reducing the overall gain of the digital audio within the dynamic range of the earphone or speaker, which is the final output of the audio, and an equalizer for correcting the difference between gains for each frequency. It consists of (Equalizer).

In the audio service system for mobile phones mentioned above, the equalizer function allows the settings set as presets or user settings to be applied equally to the entire song. For example, if the user has set the equalizer setting to pop, the entire song stored in the phone, regardless of the genre of the song, such as jazz, rock, disco, hip hop, folk, and chanson The same applies to the pop equalizer setting.

Therefore, the user has to listen to the same equalizer setting for all the songs stored in the mobile phone, and there is a problem in that the equalizer setting for each song needs to be changed for the equalizer setting for each song.

The technical problem to be achieved by the present invention is to provide an audio service method for a mobile phone that provides a user interface function to set the equalizer for each song by selecting a playable music file when using the audio service using a mobile phone.

In the audio service method for a mobile phone according to an aspect of the present invention, a preset function and a band of a song according to a user's preference are set so that an equalizing function suitable for each song genre is set for each song through a user interface. By providing a user setting function that enables boosting / down separately, the user can change the equalizer setting through the correction means so that the song can be played with the equalizer and user setting values set for each song when playing music files. Watch.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

First, an audio service method for a mobile phone according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.

1 illustrates a configuration of an audio service system for a mobile phone applied to an embodiment of the present invention.

As shown in FIG. 1, in the audio service system for a mobile phone applied to an embodiment of the present invention, when the audio is reproduced through a voice-only codec for the mobile phone, a gain and a harmonic distortion for each frequency are generated, and the voice is a voice. Edo outputs sound somewhat distorted from the original tone.

Therefore, by utilizing the correction means 10 for correcting the distortion portion for each frequency by inverting on the basis of the processing process of the voice-only codec for the mobile phone and the characteristics of the reproduction frequency, the correction means 10 encodes the data corrected through the encoding means ( By encoding through 20), the original audio can be reproduced similarly to the original audio sound because it is auditoryly felt during the reproduction of the final result.

Specifically, the correction means 10 includes a compressor and a frequency-specific gain that reduce the overall gain of the digital audio within the dynamic range of the earphone or speaker which is the final output terminal of the audio. It consists of an equalizer that compensates for the difference.

That is, the core of the audio signal correction means 10 is an equalizer, and audio data that can be reproduced similarly to the original audio through an equalizer for each frequency band according to a modulation scheme for each frequency band of the voice-only codec. Will be converted to.

In addition, techniques such as ancillary volume (volume) and spectrum (spectrum) for improving the sound quality can be used, but basically included in the equalizer (Equalizer) in the concept of correcting the audio based on the range.

When the correcting means 10 and the encoding means 20 are combined to be referred to as audio file conversion generating means, the audio file conversion generating means may be configured in hardware, but is mainly programmed to implement a function in software. .

2 is a flowchart illustrating an audio service method for a mobile phone according to an embodiment of the present invention, and FIG. 3 illustrates a screen displayed on the mobile phone according to the equalizer setting and management according to FIG. 2, and (a) shows an equalizer. The setting screen, (b) shows an equalizer setting screen for a specific song, (c) shows an equalizer setting management screen in one folder, and (d) shows an equalizer setting management screen for each EQ folder.

As shown in FIG. 2, in the audio service method for a mobile phone according to an embodiment of the present invention, when a user sets the same equalizer function for all the songs stored in the mobile phone (S1), a correction means ( 10 shows basic preset settings for music genres such as jazz, rock, disco, hip hop, folk, and chanson as shown in FIG.

In addition, the correction means 10 supports a user setting function to boost or down the bass, midtone, and treble to each band desired by the band.

After the user sets a preset or user settings, the MP3 player functions to listen to the song with the same equalizer for all songs.

When the user sets the equalizer function for each song stored in the mobile phone, the correction means 10 selects a specific song from the playlist as shown in FIG. 3 (b) and performs equalizer setting. (S3, S4)

When the user changes the equalizer setting while the song is playing, the correction means 10 provides a hot key or a user interface so that the equalizer setting value can be changed several times during the song playback (S5, S6).

After the equalizer setting is performed as described above, the correction means 10 reproduces the equalizer and the user setting value for each song when the song is reproduced (S7).

For example, if song 1 is pop, song 2 is rock, song 3 is not set, and song 1 is pop equalizer, song 2 is rock Equalizer, song 3 is played with a jazz equalizer.

In this case, the user may change the equalizer setting to pop by hot keying the equalizer set to lock when the song 2 is played, and the second song is changed to the pop equalizer changed by the user while playing the rock equalizer. .

When the equalizer setting is completed as described above, the correction means 10 displays and manages the EQ for each song so that each song EQ setting can be recognized in one folder as shown in (c) of FIG. 3.
In other words, the user selects a specific song on the playlist and selects a form to be played in one of genres such as pop, rock, and jazz for the specific song. Accordingly, the correction means 10 reproduces the selected specific songs by performing boosting / down, which is a basic function of the equalizer, as a corresponding equalizer setting value. For example, if the user has specified an equalizer setting value for emphasizing the sound of a low frequency band such as a drum or bass of a particular song, the correction means 10 lowers the high frequency band by attenuating high frequencies, For example, bands in the region below the frequency of 200 Hz may be boosted to emphasize low frequencies. In addition, if the user designates an equalizer setting value for emphasizing the sound of a high frequency band such as a melody or voice of a specific song, the correction means 10 lowers the band in the low frequency region to attenuate the low sound, For example, you can boost the band by boosting the band in the frequency range of 1 ~ 4KHz. As another example, if the audio system for a mobile phone according to the present invention supports different equalizer setting values for each genre, the user may directly select a genre for reproduction and a corresponding equalizer setting value for the selected song. In this case, the correction means 10 may maintain the equalizer setting value corresponding to each genre in advance, and apply the corresponding equalizer setting value changed by the user to the selected song when the selected song is played. According to an embodiment of the present invention, selection of a specific song on the play list, selection of a genre of the selected song, or input of the equalizer setting value is possible through a user interface means such as a hot key.
On the other hand, the correction means 10 manages the folder for each EQ as shown in (d) of FIG. 3 so that when a user sets an equalizer for a specific song, the music file is automatically moved to the equalizer folder.

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In the above case, the correction means 10 causes the music file in the pop equalizer folder to be moved to the lock equalizer folder so that the pop file equalizer is released and the setting is automatically changed to the lock equalizer.

The audio service system for a mobile phone according to an embodiment of the present invention can be equally applied to a sound source such as AAC, WMA, OGG, or a melody sound as well as MP3.

The drawings and detailed description of the invention are merely exemplary of the invention, which are used for the purpose of illustrating the invention only and are not intended to limit the scope of the invention as defined in the appended claims or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, the mobile phone audio service method according to the present invention enables the user to select a music file stored in the mobile phone and set an equalizer for each song, so that the user can enjoy listening to the song similar to the taste of the user or the original audio. It can be effective.

Claims (5)

In the audio service method for a mobile phone to the music file stored in the mobile phone is corrected through the correction means and reproduced similar to the original audio original sound when the final result is reproduced, a) the correction means providing a preset function such that an equalizer function suitable for each song genre is set for each song through a user interface; b) the correcting means providing a user setting function to enable boosting / down for each band of a song according to a user's preference; And c) the correction means for reproducing the equalizer set for each song and the user setting value when playing the music file; Audio service method for a mobile phone comprising a. The method of claim 1, The step a) is such that each second equalizer setting for the individual song is made after the first equalizer setting for the entire song so that the first equalizer setting is applied to the unequalized song. The method of claim 1, The step c) includes providing a hot key function to change an equalizer setting while the music file is playing. The method of claim 1, The step c) is characterized in that the correction means for displaying the current equalizer settings for each song on the play list (play list), characterized in that for displaying the mobile phone. The method of claim 1, Step a) is By managing folders by equalizer, when a user sets an equalizer for a specific song, the music file is automatically moved to the corresponding equalizer folder, and when the music file in the first equalizer folder is moved to the second equalizer folder, the music file is the first equalizer. The setting is released and set to the second equalizer.

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