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JP2001067100

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Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JP2001067100
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
MP3 portable player, and in particular, when a song is played back, it is automatically adjusted to
an optimal frequency characteristic that matches the genre of the song information of the played
song. Relates to the MP3 portable player.
[0002]
BACKGROUND OF THE INVENTION In recent years, with the speeding up of personal computers
(hereinafter referred to as personal computers) and the evolution of OSs, high-quality music can
be handled even with personal computers, and music of CDs (Compact Disc) is used as personal
computers. It became possible to import it as data into and to edit and process it freely. However,
when trying to process audio data of the same quality as a CD with a personal computer, one file
has a capacity of several tens of megabytes, and even with a high-performance personal
computer it is not very easy to use.
[0003]
Recently, there is an audio file called MP3 (abbreviation of MPEG-1 Audio Layer 3) which has
become a hot topic mainly on the Internet. This is an epoch-making standard whose file size is
very small compared to the conventional one while having almost the same sound quality as a
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music CD. If you make a standard audio file about 4 minutes of songs contained on a CD, it will
be close to 40 MB, but it can be compressed to about 1/10 with MP3. In other words, it has the
excellent feature of being able to play and store CD-like music with files of around 4 MB per
song.
[0004]
There is a dedicated MP3 portable player that plays such MP3 files. FIG. 7 is an external view of
an MP3 portable player equipped with a simple equalizer function. The headphone jack 43 for
attaching a headphone plug to the upper panel of the main body 42 of the MP3 portable player
41, the menu button 44 for monitoring the internal / external memory when stopped, and the
setting of equalizing (EQ) An equalizing button 45 for changing, and an intro button 46 for
reproducing the first portion of each song for 5 to 10 seconds and then skipping to the next song
are provided.
[0005]
The front panel of the main body 42 is provided with a liquid crystal display panel 48 at the top,
a volume increase button 50 and a volume decrease button 51 at the bottom, and a circular dial
button 52 for performing various operations for reproduction. The equalizing button 45 can
select four types of sound quality: normal, classic, jazz, and rock. When the normal is selected,
the sound is reproduced as it is.
[0006]
By the way, in the above-mentioned MP3 portable player, when the user operates the circular
dial button 52 to select a song, the equalizing button 45 is pressed to match the song to be
selected and reproduced. , Need to change the frequency characteristics. For example, in the case
of playing classical music, the equalizing button 45 is operated to display "classical" on the liquid
crystal display plate 48 for selection, and in the case of playing jazz music, the equalizing button
45 is operated. In order to display and select "jazz" on the liquid crystal display plate 48 and
reproduce the rock music, it is necessary to operate the equalizing button 45 to display "lock" on
the liquid crystal display plate 48 and select it. Every time the frequency characteristic has to be
changed by operating the equalizing button 45 each time, the operation is troublesome.
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[0007]
Also, even if music is selected and played back, if the operation of the equalizing button 45 is
forgotten or if the equalizing button 45 is operated erroneously, there will be a mismatch
between the music to be played back and the frequency characteristics.
[0008]
There is also software for setting an equalizer pattern for each music of an MP3 file when
creating an MP3 file.
For example, the equalizer can be adjusted between +20 dB and -20 dB, and there is software
that sets an equalizer pattern in which the settable frequency band is 10 bands. Thus, in the
method of setting the equalizer pattern for each song, it is necessary to adjust the frequency
band of, for example, 10 bands delicately according to the song, and setting of the equalizer
pattern is difficult, and it is considerable for setting There was a problem that it was timeconsuming and troublesome. Therefore, it is an object of the present invention to provide an
MP3 portable player in which when a song is played, it is automatically adjusted to an optimal
frequency characteristic suitable for the preset genre of the played song. .
[0009]
SUMMARY OF THE INVENTION The MP3 portable player according to the present invention is
an MP3 portable player capable of reproducing an MP3 file and changing its frequency
characteristics, wherein the MP3 file contains song information including at least a genre.
Frequency characteristics setting means for setting to change the frequency characteristics
according to the tune to be reproduced, and operating the frequency characteristics setting
means for each genre to set the When the genre-specific frequency characteristic storage means
for storing the corresponding frequency characteristics and the music of the MP3 file are
reproduced, the genre of the music information of the music is determined, and the genrespecific frequency characteristics storage means corresponding to the genre And the playback of
the song will be this called frequency characteristic. And it is characterized in that it comprises a
control means for controlling.
[0010]
In the MP3 portable player according to the present invention, when the music of the MP3 file is
reproduced, the control means discriminates the genre of the music information of the music,
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and the frequency characteristic storage means classified by genre calls up the frequency
characteristic corresponding to the genre. The reproduction of the music can be controlled to be
the called frequency characteristic.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION An example of an embodiment of an MP3
portable player according to the present invention will be described below with reference to the
drawings.
FIG. 1 is a perspective view of an MP3 portable player according to the present invention.
The headphone terminal 4 for attaching the plug of the headphone 3 to the upper panel of the
main body 2 of the MP3 player 1, the menu button 5 for monitoring the internal / external
memory when stopped, the genre of song information to be described later According to the auto
sound button 6 for automatically setting the frequency characteristic, and the intro button 7 for
reproducing the first portion of each song for 5 to 10 seconds and then skipping to the next
song. The front panel of the main body 2 is provided with a liquid crystal display plate 9 in order
from the top, a volume increase button 10 for increasing the volume, a volume decrease button
11 for decreasing the volume, and an operation button 12 for reproduction. There is.
[0012]
The operation button 12 for reproduction is provided with a play button 13 for starting
reproduction at the center, and a pause button 14 for temporarily stopping reproduction around
the play button 13 and fast-forwarding reproduction A fast forward button 15 for stopping the
playback, a stop button 16 for stopping the playback, and a fast return button 17 for fast
returning the playback are provided. That is, the operation button 12 for reproduction is
composed of a play button 13, a pause button 14, a fast forward button 15, a stop button 16, and
a fast reverse button 17. On the left side of the operation button 12 on the front panel of the
main body 2, a random play button 19 for randomly reproducing a song in order from the top, a
repeat button 20 for repeating the reproduction of the song, and an all button 21 for
reproducing all the songs Is provided.
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[0013]
FIG. 2 is a back view of the main body 2 of the MP3 portable player according to the present
invention. A genre-specific frequency characteristic preset button 24 for presetting frequency
characteristics according to genres described later, a scroll-up button 25 for scrolling genre
characters displayed on the liquid crystal display panel 29, and a scroll-down button 26 and a
genre character, and a liquid crystal display panel 29 for displaying a frequency characteristic set
by the equalizer 30, which will be described later, and a genre displayed on the liquid crystal
display panel 29 and a frequency characteristic corresponding thereto are determined. The
confirmation button 27 is provided. By pressing the confirmation button 27, the genre displayed
on the liquid crystal display plate 29 and the frequency characteristic corresponding thereto are
stored in the genre-based frequency characteristic storage means 39 described later.
[0014]
Below the liquid crystal display panel 29, for example, the slider 30a can be adjusted between
+20 dB and -20 dB by sliding the sliders 30a, and the equalizer 30 which is a frequency
characteristic setting means whose frequency band can be set is 10 bands. It is provided. The
setting of the frequency characteristic for each genre will be described in detail later.
[0015]
According to the present invention, when the music of the MP3 file is reproduced, the genre in
the tag which is the music information of the music is determined, and the frequency
characteristic corresponding to the genre is called from the frequency characteristic storage
means by genre. The reproduction is made to have this called frequency characteristic.
[0016]
FIG. 3 is a diagram showing a basic flow until listening to MP3.
First, as shown in FIG. 3 (1), data of a music CD is converted into a WAV file, which is a standard
audio file, using dedicated software, and copied to a hard disk of a personal computer. これをリ
ッピングという。 As we convert from CD, we can realize high quality from digital to digital. Next,
as shown in FIG. 3 (2), the WAV file is encoded into MP3 data, and the data is compressed. Some
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software can do everything from ripping to encoding at once. Then, as shown in FIG. 3 (3), when
an MP3 file is played back using dedicated playback software called an MP3 player, music flows
from a speaker of a personal computer (not shown). In addition, you can listen to MP3 data with
a dedicated MP3 portable player as well as a personal computer.
[0017]
FIG. 4 is a schematic block diagram of an MP3 portable player according to the present
invention. The CPU 32 has a ROM (Read Only Memory) 33 storing various programs, a RAM 35
comprising a flash memory card or the like storing MP3 files, an operation unit 36, and a display
unit 37 comprising liquid crystal display panels 9 and 29; A genre-specific frequency
characteristic storage means 39 for storing genre-specific frequency characteristics, an equalizer
30 for setting the frequency characteristics, a headphone terminal 4 and the like are connected.
The operation unit 36 includes a menu button 5, an auto sound button 6, an intro button 7, a
volume increase button 10, a volume decrease button 11, an operation button 12, a random play
button 19, a repeat button 20, an all button 21, and a frequency characteristic preset button by
genre. A scroll-up button 25, a scroll-down button 26, and a confirmation button 27 are
provided.
[0018]
Music information called a tag is embedded in the MP3 file. Tags are additional information
unique to MP3s that can embed information about songs into MP3 files, and most MP3 players
can display tag information during playback. This tag allows you to check the title and manage
MP3 files efficiently.
[0019]
The tag has items such as title name, artist name, album name, genre, etc., and can be edited
freely by the user. FIG. 5 is a view showing an example of tag information of the created MP3 file.
As shown in FIG. 5, the MP3 file name "C: \ data \ mp 3 data \ wav \ love-01. Mp 3", the title
name "Summer Night Town", the artist name "Taro Yamada", the album name "World Wide"
“Production date“ 1999-03-10 ”, genre name“ Pop ”, etc. are displayed. Other genre names
include "ROCK", "JAZZ", "CLASSIC", "VOCAL" and "NEWS".
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[0020]
Next, setting of frequency characteristics for each genre will be described. FIG. 6 is a diagram for
explaining the setting of the frequency characteristic of the genre "ROCK". The genre-specific
frequency characteristic preset button 24 is pressed to call up the genre character stored in the
genre-specific frequency characteristic storage means 39. First, the genre character set to the
latest is called. Then, the scroll up button 25 or the scroll down button 26 is pressed so that, for
example, genre characters of "ROCK" are displayed. Next, each slider 30a of the equalizer 30 is
operated to adjust it to a desired frequency characteristic that is in ROCK. Then, pressing the
enter button 27 determines the frequency characteristic corresponding to the genre "ROCK" and
stores it in the genre-specific frequency characteristic storage means 39. Similarly, desired
frequency characteristics can be set for "JAZZ", "POP", "CLASSIC", "VOCAL", etc., and can be
stored in the genre-specific frequency characteristic storage means 39.
[0021]
When the auto sound button 6 is pressed to set the automatic mode, if there is the word "ROCK"
in the item "genre" in the tag information, it corresponds to the ROCK stored in the genre-specific
frequency characteristic storage means 39. The frequency characteristic is read out, and the
reproduction of the music is controlled by the CPU 32 so as to be the called frequency
characteristic, and is outputted from the headphone terminal 4 to the headphone 3.
[0022]
On the other hand, when the auto sound button 6 is pressed again to release the automatic mode
and set to the manual mode, the automatic setting of the frequency characteristics by genre is
canceled. Therefore, it is desirable to play the music by operating the sliders 30a of the equalizer
30. It can be freely adjusted to have the frequency characteristic of
[0023]
Therefore, since the frequency characteristic is automatically set corresponding to the item of
"genre" in the tag of the music to be reproduced when the music is reproduced, the frequency
matching the music every time the MP3 file is created It is possible to save the trouble of setting
the characteristics.
[0024]
Further, it is possible to finely set the frequency characteristic corresponding to the item of
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"genre", and it becomes a frequency characteristic well matched to the tune to be reproduced, so
that a simple and high-quality reproduced sound can be heard.
[0025]
Although one genre name corresponds to one genre in the above embodiment, the invention is
not limited to this, and a plurality of genre names may correspond to one genre.
For example, in a genre called pops, the corresponding genre name may be "Pop" or "Pops", and
one frequency characteristic corresponding to a plurality of genre names "Pop" or "Pops" may be
classified by genre frequency characteristic storage means 39. May be configured to be stored.
This makes it possible to cope with multiple genre names corresponding to one genre.
Furthermore, the genre is not limited to characters, but may be symbols.
[0026]
Although the sliders 30a of the equalizer 30 are mechanically slid manually, the present
invention is not limited to this. Each slider of the equalizer on the screen is moved by key
operation. You may
[0027]
As described above, according to the present invention, when a song is played back, the
frequency characteristic is automatically set according to the genre in the song information of
the played song. Every time the MP3 file is created, it is possible to save the trouble of setting the
frequency characteristic that matches the music.
[0028]
Further, since the frequency characteristics can be set finely in advance corresponding to the
items of the genre, the frequency characteristics are well matched to the music to be reproduced,
and it is possible to listen to the reproduced sound easily and with high quality.
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[0029]
Brief description of the drawings
[0030]
1 is a perspective view of an MP3 portable player according to the present invention.
[0031]
2 is a back view of the main body of the MP3 portable player according to the present invention.
[0032]
It is a figure which shows the basic flow until it listens to FIG. 3 MP3.
[0033]
4 is a schematic block diagram of an MP3 portable player according to the present invention.
[0034]
5 is a diagram showing an example of tag information of the MP3 file.
[0035]
It is a figure explaining the setting of the frequency characteristic of "ROCK" of FIG. 6 genre.
[0036]
7 is an external view of an MP3 portable player equipped with a simple equalizer function.
[0037]
Explanation of sign
[0038]
DESCRIPTION OF SYMBOLS 1 MP3 portable player 2 main body 3 headphone 4 headphone
terminal 6 auto sound button 9 liquid crystal display panel (display section) 10 volume increase
button 11 volume decrease button 12 operation button 24 for reproduction frequency
characteristic preset button 27 determination button 29 liquid crystal Display board (display
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unit) 30 Equalizer (frequency characteristic setting unit) 32 CPU (control unit) 33 ROM 35 RAM
39 Frequency characteristic storage unit by genre
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