BLE Voice

1. Problem Description When using the KT148A serial version voice chip to play music, the microcontroller (MCU) malfunctions immediately. After measurement, it was found that the power supply fluctuates significantly whenever music playback begins. According to the manual, this is likely due to insufficient drive capability , but when the same power supply is connected to your official test board , the MCU works normally. 2. Analysis The root cause of this issue is quite clear — power supply instability . This is a common problem and can be resolved with basic circuit design practices. First, note that the KT148A chip has two power supply configurations , as shown in the figure below (pay attention to the power supply notes in the upper-right corner). Next, the current consumption of the chip depends on two main factors: Speaker impedance and power rating — the larger the speaker, the higher the current draw. Playback volume — the higher the volume, the greater the power ...

Test Box Audio File Update Instructions 1.Place the audio files to be updated ( media1.sbc and media2.sbc ) in the same directory as AC690x_1T2 Test Box_Slave V1.0.2.exe . If these files are absent, the default built-in files will be used. 🔹 Method 1: Re-upgrade the test box slave code . Refer to Method 1 of the test box firmware upgrade for the slave upgrade process; the master does not need upgrading. 🔹 Method 2: If media1.sbc and media2.sbc are present in the directory, running AC690x_1T2 Test Box_Slave V1.0.4.exe will generate jl_690x.bin in the directory (this bin file includes the new prompt sounds ). Then, follow Method 2 of the test box firmware upgrade to complete the update.

In medical scenarios, issues such as diabetic patients having difficulty reading the small - sized screens of blood glucose meters and nurses mishearing the alarm sounds of infusion pumps in noisy wards highlight the hidden dangers caused by the “silence” of medical devices. The 8 - pin KT148A voice chip from Guangzhou Nine - Core Electronics effectively addresses this industry pain point, enabling medical devices to clearly “speak”. I. The Medical - Grade Excellence of the 8 - pin Chip This reprogrammable voice IC , despite its small size, boasts hardcore parameters: Ample Storage Space : The chip comes with 420 KByte of space, allowing users to easily change voices via a computer. Wide Voltage Adaptability : With a wide voltage range of 2V - 5.5V, it can adapt to various power systems of medical devices. Ultra - low Power Consumption : The static current is less than 2μA, which can increase the battery life of devices such as monitors by 30%. Powerful Voice Combinations : It has ...

Related Questions How does the KT6368A Bluetooth chip apply for FCC certification ? What is the BQB certification process for the KT6368A Bluetooth chip? What test items are required for the KT6368A Bluetooth chip to pass the KC certification ? This article focuses on the KT6368A Bluetooth chip passing certifications such as FCC, BQB, KC, and CE . Since the standard chip does not have a test mode , a special test chip needs to be purchased and the corresponding firmware burned. After burning, replace the original chip to conduct the test. If the certification fails, it is mostly due to hardware problems . If you can't solve it, you can contact us for assistance. The details are as follows: Chip Purchase If you want to conduct Bluetooth certification (such as BQB) or radio frequency parameter testing (such as FCC, including CE, KC [South Korea], NCC [Taiwan] and other wireless product performance tests ), you must contact us to purchase a special test chip. Chip Function Limitat...

Giving a Soul to Smart Tech!  🎶 A Peek at Our MP404A Voice Chip Testing ✨ It's this tiny board that can make your smart speakers and gadgets "talk"!  🎵 ➡️ The Core Trio of Chips: Main Control Chip (KT404A): The brain that generates the audio signal and supports Bluetooth connectivity ! Storage Chip (W25Q32): Acts like a USB drive to store all your sound files and music. Amplifier Chip (HAA2018B): Boosts the audio signal to make it loud and crystal clear. Every test is for that perfect user experience.  From Bluetooth audio modules to smart home voice chips , our passion for technology and innovation never stops.  This is our commitment to "Wireless Possibilities"!  ✨ #JLBluetooth #BluetoothChip #VoiceBroadcastChip #MP3VoiceModule #SmartHome #TechFinds #Innovation #LoveLife #BluetoothAudioModule #IoT

🏭 Advancing Edutainment Technology JieLi AC6965E Bluetooth chip enables: • 8-hour continuous playback • 10m recording capacity • Multi-sensor integration Powering next-gen educational toys #BluetoothTech #EmbeddedSystems