CN2492991Y - Loud speaker capable of broadcasting digital voice independently - Google Patents

Abstract

A reproducer capable of independently playing digital voice includes a digital voice reading unit, an audio-mixing unit and multiple sets of speakers. The digital voice reading unit can read a digital voice storage device, and after being mixed by the audio-mixing unit, the digital voice is then sent to the speakers for sound amplification. Consequently, the digital voice reading unit has the function of independently playing the digital voice, and therefore the reproducer has a function of broadcasting in a plurality of different signal forms.

Description

But the loudspeaker of independent play-out digital speech

Technical field

The utility model relates to a kind of loudspeaker, but refers to a kind ofly have the digital speech playing device and the loudspeaker of independent play-out digital speech especially.

Background of invention

At present, general computer all has the CD-ROM device of the music CD of can read, after speech data on the laser disc read by CD-ROM device, again by the loudspeaker external with adlib, with the voice broadcast that amplifies, therefore for general complete sound play device, except that having the device that can read music data, also devices such as loudspeaker or earphone need be installed, real sound signal can be played out.

At present, because scientific and technological progress, make various voice playing device produce fast, be state-of-the-art technology wherein with the digital speech playing device, and the storage card of the high storage capacity of can arranging in pairs or groups, digital memory card is as MMC, SD, CF etc., can allow the user need not to do often the action of changing, yet, substantially CD-ROM device but can only read the music storage device of laser disc form in being equipped with for general multimedia computer, so for present different types of digital storage card, but can only be limited to specific playing device,, and add a public address system in addition if specially can play this type of music storage card for reaching, not only the unnecessary free time can be occupied, also the cost of acquiring peripheral equipment can be increased.

By being as can be known, as how at present computer be equipped with direct upgrading substantially and make it have the function that can play aforementioned digital music storage card, will be one can improved again emphasis.

Summary of the invention

From the above, but main purpose of the present utility model is to provide a kind of has the digital speech storage device and the loudspeaker of independent play-out digital speech, being applicable to the present storage devices such as various digital speech storage cards or memory stick of being released, and then increase existing electricity in the high usability of product.

For achieving the above object, but the utility model provides a kind of loudspeaker of independent play-out digital speech, and it includes:

One digital speech reading unit is in order to read the speech data of digital speech storage device;

One audio mixing unit is connected to the output of above-mentioned digital speech reading unit;

At least one group of loudhailer is connected to this audio mixing unit by an amplifier, in order to play the speech sound signal that this audio mixing unit is exported.

Said apparatus mainly utilizes this digital speech reading unit to read the storage device that stores digital voice data, inputs to loud speaker by the audio mixing unit after with this speech sound signal audio mixing again, can reach the effect of playing digital speech; By this, can make these loudspeaker except possessing the general phonetic function of broadcast, also can have the function of independent play-out digital speech, and then increase the multifunctionality of these loudspeaker.

Description of drawings

Fig. 1 is the outside drawing of a practical application of the present utility model;

Fig. 2 is the circuit block diagram of a preferred embodiment of the present utility model;

Fig. 3 is the detailed circuit diagram of this preferred embodiment of the utility model.

Embodiment

The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.

The utility model is a kind of loudspeaker device with independent broadcast function, at first sees also shown in Figure 1ly, and these loudspeaker 10 bodies can be connected to the source of sound output of the adlib of a computer 30, and it includes:

One input interface 11 is used for voice storage device 40 to plug;

One group of button 12 is in order to do effects such as power-on and handoff functionality;

At least one group of loud speaker 24, it is located on these loudspeaker 10 bodies, in order to as the usefulness that amplifies;

One sound source wire 27, in order to plug source of sound output to this computer 30:

Please consult shown in Figure 2ly again, be a circuit block diagram of the present utility model, wherein the control circuit of these loudspeaker 10 bodies includes:

One digital speech reading unit 21 is connected to voice storage device 40 by input interface 11, in order to read the speech data of this digital speech storage device 40; Wherein this digital speech storage device 40 can be MMC, SD, CF card etc.;

One audio mixing unit 22 is connected to the output of above-mentioned digital speech reading unit 21;

At least one group of loudhailer 24 is the outputs that are connected to this audio mixing unit 22 by an amplifier 23, in order to play the speech sound signal of these audio mixing unit 22 outputs;

Two filter 26,28 connects the input of audio mixing unit 22 and this sound source wire 27 respectively, with the noise of filtering sound import;

One power circuit 25 connects power supply end, uses for above-mentioned each element circuit in order to the conversion work power supply;

Said apparatus can be connected to computer 30 source of sound outputs by sound source wire 27, when computer 30 output speech sound signals, after this filter 28 of process will be imported the noise filtering earlier, in regular turn by importing this loud speaker 24 behind audio mixing unit 22 and the amplifier 23 again.In addition, also digital speech storage device 40 can be plugged to input interface 11, as shown in Figure 1, can be by the speech sound signal of digital speech reading unit 21 reading number voice storage devices 40, and this speech sound signal is connected to this audio mixing unit 22, can play these speech sound signals by loud speaker 24 equally.

See also shown in Figure 3, detailed circuit for the foregoing circuit block diagram, wherein this power circuit 25 is to be made up of a full-wave rectifier and capacitor, in order to convert AC power to DC power supply, this amplifier 23 is made of an integrated circuit U1, its input is connected to two outputs of this digital speech reading unit 21 respectively by audio mixing unit 22, and is connected to two signal ends of sound source wire 27 inputs, and its output is connected to two groups of loud speakers 24 by filter 28, amplifier 23.

Wherein, when aforesaid each circuit work power is supplied with in power circuit 25 output DC sources, on the sound source wire 27 input speech sound signal via the unnecessary signal of these filter 28 filterings after, by audio mixing unit 22 with about sound audio mixing, send into amplifier 23 and amplify signals, again by loud speaker 24 output that amplifies, after pressing as if the button 12 of digital speech reading unit 21, the speech sound signal that it can be read broadcasts so that sound is enlarged in regular turn by filter 26, mixer 22, amplifier 23 and loud speaker 24.

In sum, the utility model is a function with general voice of broadcast and digital speech, not only make loudspeaker more meet multimedia demand, more can save the expense that installs other public address systems additional by this device, not only reach multi-functional purpose, also because of need not to install other specific playing devices additional, so have the high-quality function that does not take up space.

The above is preferred embodiment of the present utility model only, is not to be used to limit protection range of the present utility model.

Claims (4)

1. But 1, a kind of loudspeaker of independent play-out digital speech is characterized in that including:

   One in order to read the control circuit of digital speech storage device and processing;

   One is used to plug the input interface of voice storage device, is connected to the input of above-mentioned control circuit;

   One group of button that is used for control circuit power supply and switching;

   At least one group of loud speaker that is used to enlarge voice, it is connected to the output of this control circuit, and is located on this speaker body.
2. But 2, the loudspeaker of independent play-out digital speech according to claim 1 is characterized in that: these loudspeaker can further include one in order to plug the source of sound terminal to the source of sound output.
3. But 3, the loudspeaker of independent play-out digital speech according to claim 2 is characterized in that: this control circuit further includes:

   One is used for reading the digital speech reading unit of voice storage device speech data, is connected to the voice storage device by input interface;

   One audio mixing unit is connected to the output of above-mentioned digital speech reading unit;

   At least one group of loud speaker in order to the broadcast speech sound signal is connected to this audio mixing unit by an amplifier;

   The filter of noises is imported in two groups of filterings, is connected to the input of this source of sound terminal and audio mixing unit respectively;

   One power circuit in order to the conversion work power supply connects power supply end.
4. But 4, according to the loudspeaker of claim 1,2 or 3 described independent play-out digital speechs, it is characterized in that: described voice storage device can be MMC, SD, CF card.

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