CN110619898A - Sound recording implementation method and system - Google Patents

Abstract

The invention discloses a sound recording realization method and a system, wherein the method comprises the following steps: step 1) obtaining signals transferred by each functional sound source; step 2) recording the input audio and then storing; step 3) inputting the stored audio file into a decoding chip; and 4) playing the recorded audio, then sending the audio to an audio DSP processor, then inputting the audio to a power amplifier, and finally sending the audio to a loudspeaker.

Description

Sound recording implementation method and system

Technical Field

The invention belongs to a sound recording realization method and a sound recording realization system.

Background

Recording is a word that is often heard in life, and in a common sound recording system, the basic principle is as follows: switching to the recording mode- -speaking or singing- -recording in progress- -recording end- -storing to the TF card or USB has the following disadvantages: the process does not have a signal source for recording the TF card of the memory card or the USB and Bluetooth.

Disclosure of Invention

The invention aims to solve the technical problem of providing a sound recording realization method and system.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a sound recording implementation method comprises the following steps:

step 1) obtaining signals transferred by each functional sound source;

step 2) recording the input audio and then storing;

step 3) inputting the stored audio file into a decoding chip;

and 4) playing the recorded audio, then sending the audio to an audio DSP processor, then inputting the audio to a power amplifier, and finally sending the audio to a loudspeaker.

Preferably, the step 1) of obtaining signals transferred by each functional sound source includes:

and acquiring signals of Bluetooth function input, U disk function input, guitar function input, radio function input, sd or TF card function input and microphone function input.

Preferably, in the step 1) of obtaining the signals transmitted by each functional sound source,

record the signal source of memory card TF card or USB and the broadcast of bluetooth itself, specifically include: and the signals of the functional sound source are obtained for recording.

An audio recording implementation system, comprising:

the full recording system is used for acquiring signals transferred by each functional sound source;

recording the input audio and then storing;

inputting the stored sound recording file into a decoding chip;

the central processing unit and the decoding chip unit are used for playing the recorded audio and then sending the audio to the audio DSP processor;

and the DSP processor is used for inputting the recorded audio to the power amplifier and finally to the loudspeaker.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The present invention will be described in detail below with reference to the accompanying drawings so that the above advantages of the present invention will be more apparent. Wherein the content of the first and second substances,

fig. 1 is a flow chart of the sound recording implementation method of the invention.

FIG. 2 is a schematic diagram of a processor of the sound recording implementation system of the present invention;

Detailed Description

The following detailed description of the embodiments of the present invention will be provided with reference to the drawings and examples, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.

Specifically, as shown in fig. 1, a method for implementing sound recording includes:

step 1) obtaining signals transferred by each functional sound source;

step 2) recording the input audio and then storing;

step 3) inputting the stored audio file into a decoding chip;

and 4) playing the recorded audio, then sending the audio to an audio DSP processor, then inputting the audio to a power amplifier, and finally sending the audio to a loudspeaker.

Preferably, the step 1) of obtaining signals transferred by each functional sound source includes:

and acquiring signals of Bluetooth function input, U disk function input, guitar function input, radio function input, sd or TF card function input and microphone function input.

Preferably, in the step 1) of obtaining the signals transmitted by each functional sound source,

record the signal source of memory card TF card or USB and the broadcast of bluetooth itself, specifically include: and the signals of the functional sound source are obtained for recording.

An audio recording implementation system, comprising:

the full recording system is used for acquiring signals transferred by each functional sound source;

recording the input audio and then storing;

inputting the stored sound recording file into a decoding chip;

the central processing unit and the decoding chip unit are used for playing the recorded audio and then sending the audio to the audio DSP processor;

and the DSP processor is used for inputting the recorded audio to the power amplifier and finally to the loudspeaker.

The invention has the following advantages:

1. the system has the requirements of a professional sound system and acoustics, and realizes the modernization technological sense.

2. Satisfy consumer's amusement demand, can record and listen the limit and sing, have the high-end KTV effect of accompaniment, make the recording process not alone.

3. The development item is used for an audio processor embedded in a 32-bit ARM Cotex M3 kernel, and the scheme has simple peripheral hardware and is mainly software-based innovation.

The recording system can record and play all audio frequencies of a radio, an AUX, a USB, a Bluetooth, a guitar and a microphone, solves the problem that only a short board of the microphone can be recorded independently in the current market, and simultaneously improves the recording effect.

As shown in fig. 2, a system block diagram illustrates: inputting by a in a brace as a Bluetooth function; b, inputting the functions of the U disk; c, inputting a guitar function; d is input with radio function; e ═ sd or TF card function input; the method comprises the steps that f, the microphone function is input, then the audio is input into a recording system, the recording system records and stores input audio, then a stored recording file is input into a decoding chip, the recorded audio is played in the later process, then the audio is input into a power amplifier, and finally the audio is output to a loudspeaker. Thus, the signal source at the front end can be played one by one and transmitted to the ears of people.

Wherein, the theory of operation is as follows:

1, U2 is the chip of the recording system, cooperates with the FLASH of U5, carries on systematic operation.

2. The system power supply is VDD _5V network input.

And 3, the R61R 64 bit number is uart and an MCU communication interface, so that the interaction between the recording chip and the main control chip is realized.

The R20R 21R 76 bit number is an external device connected with the recorded sound for storage.

And the C44C 42C 45 bit number is input by an audio signal source (AUX, guitar, MIC, USB, TF card and Bluetooth).

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. A sound recording implementation method is characterized by comprising the following steps:

step 1) obtaining signals transferred by each functional sound source;

step 2) recording the input audio and then storing;

step 3) inputting the stored audio file into a decoding chip;

and 4) playing the recorded audio, then sending the audio to an audio DSP processor, then inputting the audio to a power amplifier, and finally sending the audio to a loudspeaker.

2. The method of claim 1, wherein the step 1) of obtaining signals delivered by the sound sources of different functions comprises:

and acquiring signals of Bluetooth function input, U disk function input, guitar function input, radio function input, sd or TF card function input and microphone function input.

3. The method for realizing audio recording according to claim 1 or 2, wherein in step 1), the signals transmitted by each functional sound source are obtained,

record the signal source of memory card TF card or USB and the broadcast of bluetooth itself, specifically include: and the signals of the functional sound source are obtained for recording.

4. A sound recording implementation system, comprising:

the full recording system is used for acquiring signals transferred by each functional sound source;

recording the input audio and then storing;

inputting the stored sound recording file into a decoding chip;

the central processing unit and the decoding chip unit are used for playing the recorded audio and then sending the audio to the audio DSP processor;

and the DSP processor is used for inputting the recorded audio to the power amplifier and finally to the loudspeaker.