1, the circuit is wrong. The VDD's 105 capacitor was replaced by a 474 capacitor. Need to modify the circuit, 105 capacitor on VDD.
2, it may be that the Bluetooth speaker is insufficient, or the mobile phone is not properly connected to the Bluetooth speaker. You can try the following methods to reconnect. The phone is not connected to a Bluetooth headset. The solution is to re-pair. First turn off the Bluetooth headsetPress and hold the multi-function button of the Bluetooth headset to activate the re-pairing of the Bluetooth headset with the mobile phone.
3, should be the program is not adjusted well, have the opportunity to discuss it together; Other questions about the voice chip can also be learned together.
1, Hengxuan was founded in 2015, Hengxuan Technology headquarters is located in Shanghai Hengxuan Technology is mainly engaged in intelligent audio SoC chip research and development, design and sales, provide AIoT fieldJingxia edge intelligent master control platform chip with voice interaction ability, products are widely used in smart Bluetooth headset, Type-C headset, smart speaker and other intelligent terminal products.
2. Hisilicon, founded in 2004 and formerly known as Huawei IC Design Center established in 1991, is the world's leading Fabless semiconductor and device design company. Its chips, such as Kirin, Barong, Kunpeng and Centeng, have a leading edge in mobile phones, mobile terminals, communications, data centers, AI and other fields.
3, the leading domestic chip represents Torch core technology is absolutely outstandingOn behalf of, more than 20 years of deep cultivation in the field of sound, the research of sound has an exclusive advantage, the launch of many intelligent voice platforms has been adopted by many first-line brands at home and abroad, the market reputation is very good, high customer requirements of the actual combat is the basis of Torch core products over the years. The new intelligent voice chip platform ATS3607 (D) is recommended.
4, if the hardware, is undoubtedly the voice pre-processing expert torch core technology, a chip to solve all things before and after sound processing, its research on sound has more than 20 years of history, launched a number of intelligent speech-related solutionsPerfect combination '> Voice chip and microcontroller: The perfect combination of digital magic and microcomputer
Voice chip and single chip microcomputer is the perfect combination of digital magic and microcomputer. Voice chip is a kind of hardware device that can store and play voice information, which usually contains digital signal processor (DSP) and memory, which can convert voice signal into digital signal for storage and playback.
The voice chip is a chip with a special function that can convert our voices into numbers and store them in a small IC. Through clever circuitry, these numbers are restored toA beautiful sound. With the advent of the voice chip, digital magic became a reality.
Parallel control mode voice chip provides key interface, the input and output port of the single chip can control the key interface of the voice chip for recording, playing, deleting, and before and after operation. There is also a voice microcontroller.
Hello is OK. The parallel control form voice chip provides the key interface, and the I/O port of the single chip microcomputer can be used to control the key interface of the voice chip for recording, playing, erasing, the previous paragraph, the last paragraph and other operations.
1, WTV series voice chip is produced by Waytronic company, with different models and functions, these chips can be controlled by key or serial port control, support recording and playback of multiple voice, with different storage capacity and playback time.
2, voice alarm system, should contain the following modules: alarm sensor detection module, control module, voice module, GPRS or GSM or DTMF module.
3. First, you need to determine what you want to broadcast and when. packageThis includes greetings in the morning, an agenda for the day, and good night messages in the evening. You need to set the time of broadcast, for example, at a specific time of day.
4, recommended to use YQ5969, the module series can support 1-8 MI head, the voice chip can provide different solutions of single-core - 4-core 32bit ARM core according to the specific needs of customers, can support local and cloud identification of different needs. The local recognition rate within 5 meters is more than 93%, and the cloud recognition rate is 97%.
1. The highlight of SK62020C is its powerful audio function. It supports DAC external power amplifier, can play beautiful chord MIDI music, built-in PWM output can drive 0.5W speaker, 13bit high resolution output, external analog power amplifier, provides 8 level volume adjustment and loop playback. With flexible playback combinations, up to 220 voice clips are supported with superior sound quality and power consumption as low as 2uA.
2, can be installed together with DSP and ordinary power amplifier, DSP power amplifier contains all the functions of ordinary power amplifierAt the same time, it has more functions than ordinary power amplifiers, such as connecting computers, etc., which can better meet the needs of owners. The improvement of sound effect can choose to replace the original car horn, which can improve the sound quality and bring a better music experience. But the sound system from the sound source carrier, decoder, power amplifier, wire, speaker is a whole set of systems.
3, the voice chip refers to the IC that can store and control the playback of voice, also known as the sound chip, audio ic. According to the output mode of the voice chip can be divided into two categories, one is PWM output mode, the other is DAC output mode. The PWM output volume is not continuousAdjustable, can not be connected to ordinary power amplifier, most of the voice chips on the market are PWM output mode. Generally used in smart home and security fields such as smart doorbell, alarm and other products.
4, ensure the safety of audio transmission. For digital signals, DAC can be used to convert them into analog signals and amplify the signals, so that they can be enhanced to output better sound effects. Traditional audio devices can be used: Many traditional audio devices, such as speakers, amplifiers, headphones, etc., still need to use analog circuits, and DAC provides digital signal to analog signal conversion, which can enable digital audio devicesUse with traditional analog equipment.
5, PWM output volume is not continuous adjustable, can not be connected to ordinary power amplifier, most of the voice chips on the market are PWM output mode. The other is the DAC amplified by the internal EQ, the voice chip sound is continuously adjustable, can be adjusted by digital control, and can be connected to an external power amplifier. The playback function of the ordinary voice chip is essentially a DAC process, while the ADC process data is completed by the computer, including the sampling, compression, EQ and other processing of the speech signal.
6, according to the output mode of voice chip is divided into two categories, one is PWM output modeOne is DAC output mode, PWM output volume is not continuous and adjustable, can not be connected to ordinary power amplifier, most of the voice chips on the market are PWM output mode. The other is the DAC amplified by the internal EQ, the voice chip sound is continuously adjustable, can be adjusted by digital control, and can be connected to an external power amplifier.
1, the role of MCU: the role of MCU is to switch the input multi-channel conference TV signal, but because the conference TV signal contains images and wordsThere are three different signals of sound and data, so the switching function of the MCU is not simply to transfer the voice signal like the telephone exchange, it needs to process the three kinds of signals differently. First of all, the automotive MCU is the center that controls all electronic systems in the car, and it can manage and monitor various electronic devices inside the car, including multimedia, audio, navigation, suspension and so on. Second, the MCU plays a key role in the operation of the car, by controlling the coordination of various electronic devices, so that the various systems of the car can operate normally.
3, MCU is a single chipComputer, it can also be called a single chip microcomputer. The role is to shrink and reduce the frequency and specifications of the CPU, and then integrate the memory, counters, and so on, and let them be on a chip, so that it becomes like a computer. Often appear in mobile phones, cars, computers, industry and so on.
4, automotive mcu is a microcontroller, it controls all the electronic systems in the car, such as multimedia, audio, navigation, suspension, etc. As the core of the automobile electronic control system, the single chip microcomputer must have the characteristics of high temperature resistance and robustness, so that it can be used in the complex interior environment of the automobileNot easily damaged. The characteristics of automotive mcu are as follows: 1. It has high processing performance.
5, MCU is short for Microcontroller Unit, it is an embedded computer system, usually used to control and perform specific tasks. An MCU typically consists of a processor core, memory (including flash and RAM), input/output interfaces, timers, and communication interfaces.
6, MCU chips in a variety of intelligent electronic devices and systems play an important role. Such as furniture appliances, such as refrigerators, intelligent access control, intelligenceEnergy socket, intelligent smoke alarm, etc.; Automotive field, such as automatic driving, intelligent navigation, air bag control system, etc. Because the MCU chip is small and compact, low power consumption and can achieve highly intelligent control, it will have a broader application prospect in the future intelligent manufacturing, Internet of things and other fields.