Voice Playback Chips
Voice Playback IC is an integrated circuit dedicated to storing and playing sounds, which is widely used in toys, home appliances and electronic devices. It supports recording function and is usually equipped with a simple control interface for user operation. The IC can adapt to multiple audio formats and has a low power design and high-quality audio output.
Sound Playback Chips
Sound playback chips are categorized into OTP voice chips, Flash voice chips, and MP3 voice chips, each with distinct characteristics and advantages, allowing for selection based on specific needs.
OTP Voice Chips ↓
The program and voice of the one-time programmable speech chip are set at the factory and cannot be modified later. The price is relatively cheap.
Flash Sound Chips ↓
The most distinctive feature of Flash audio chips is that they can be programmed multiple times and their internal audio content can be replaced, offering flexibility and moderate pricing.
MP3 Decoding Chips ↓
MP3 audio playback chip, supports decoding and playing audio formats such as WAV and MP3, with good sound quality, suitable for high-end products.
Chip's Differences
programming style
- OTP voice chip: one-time burning
- Flash voice chip: programmed multiple times
- MP3 sound chip: supports online updates
storage expansion
- OTP voice chip: fixed content capacity
- Flash voice chip: supports external Flash memory
- MP3 sound chip: relies on external memory
quality and functionality
- OTP voice chip: basic voice prompts
- Flash voice chip:
- multi-level mixing/tuning
- MP3 sound chip: high fidelity audio decoding
cost comparison
- OTP voice chip:
- Lower
- Flash voice chip:
- Medium
- MP3 sound chip:
- Higher
Application Range
Consumer Electronics
Medical Devices
Household Appliances
Smart Home
Security Alarm
Functional overview
- Operating voltage: 2.4V to 5.5V
- Standby current less than 5 microamperes
- Maximum support for 224 segments of voice addresses
- 12-bit PWM, directly drives 8 speakers at 0.5W each; DAC audio output, external amplifier can be connected
- Control modes: pulse, button, one-wire serial port, two-wire serial port
- Voice capacity: 6 seconds, 20 seconds, 40 seconds, 80 seconds, 170 seconds
- Operating voltage: 2.4~5.5V; standby current less than 5 microamperes;
- 16-bit PWM/DAC output, capable of directly driving an 8 ohm 0.5 watt speaker;
- Customers can replace the internal voice content of the chip via MCU or a dedicated downloader;
- Supports one-wire serial port, two-wire serial port (UART and IIC communication);
- Supports 5000 address segments;
- Equipped with hardware SPI interface, UART interface, built-in comparator, etc.; customizable for various functions.
- Operating voltage: 2.4V-5.2V
- Supports high-quality audio formats for voice, including MP3 and WAV formats
- Standby current, deep sleep less than 3μA, local sleep less than 30μA
- 10-bit high precision AD sampling, capable of driving 8Ω 0.5W speakers directly
- Control methods supported include one-wire, two-wire, and UART
- Built-in voice chip capacity: 350 seconds, 900 seconds
- Maximum external support includes 128Mbit Flash, 32GB TF card, and 32GB USB drive (TF and USB drives support FAT or FAT32 format)
Products Show
Product Advantage
Provide industry-leading products and comprehensive product solutions to address diverse customer needs.
Frequently Asked Questions
The mainstream voice chips currently being played include the WTN6 series, WT588 series, WT2003H series, and WTV series.
Store the desired sound into the voice chip, and the MCU controls the voice chip to play the desired sound through IO port commands. Currently, there are two series: WTN6 and WT588F; The WTN6 series belongs to OTP, and after burning the sound in one go, the sound file cannot be replaced. The WT588F series belongs to the flash series. After burning the sound file, it can be erased, re burned, and then re burned. (You can create sound files that need to be stored in the voice chip through our company’s website). WTN6 currently has 6 seconds, 20 seconds, 40 seconds, 80 seconds, and 170 seconds. The WT588F series has 170 seconds, 340 seconds, and 680 seconds. Flash (4M-128Mbit) can also be installed externally to store more sound files.
- Characteristics:
One time programming, cannot be modified after burning;
Supports PWM/DAC output, driving 8 Ω/0.5W speakers;
Extremely low static current (standby ≤ 5 μ A), suitable for low-power devices. - Advantages:
Low cost, simple development, suitable for mass production of fixed voice prompt scenarios;
Typical applications: bird repellent, electronic doorbell, industrial equipment navigation.
- Characteristics:
Supports repeated erasure and can expand storage through external Flash (up to 128Mbit);
Supports 16 level volume adjustment, multi-level mixing, and MIDI playback. - Advantages:
Strong flexibility, supporting OTA upgrades and voice content iteration;
Typical applications: smart homes, medical devices, and in car navigation.
- Characteristics:
Supports decoding audio formats such as WAV/MP3, with better sound quality than traditional speech chips;
Usually equipped with USB burning interface and streaming media transfer capability. - Advantages:
Suitable for high sound quality demand scenarios, such as automotive electronic sound wave simulation and Hi Fi devices.
WT2003H supports MCU to update the entire bin file or update individual segments of MP3 audio separately.
- MP3 playback chips generally support mp3 and wav formats
- Bluetooth chips support mp3, wav, and flac formats
Cannot re burn voice, WTN6 chip belongs to OTP class chip and only supports burning voice once.
Supports high-quality audio formats, MP3 format, (audio bitrate supports 8kbps~320kbps) with beautiful sound;
ISD2360 is a 3-channel digital chip that supports direct drive of 0.95W D-class speakers. There are no completely replaced chips available. Our company’s WTV600 and WT2003H series can be considered. WTV600 can support up to 16 channel mixing and supports direct drive of 8R/0.5W speakers, while WT2003H supports 8-channel mixing and direct drive of 8R/0.5W speakers. It also supports hardware mono DAC output. For dual channel DAC output, our company’s WT2605 series chip can be considered, but it does not support direct drive speakers and requires external amplifier output.
Service Philosophy
Commit to providing customer engineers with quick voice solutions and intelligent IoT applications, shortening product development cycles. Aimed at meeting and exceeding the expectations of customer engineers, we are dedicated to offering high-quality voice solutions and comprehensive optimal BOMs that surpass expectations.
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Service Advantages
Sample
Rapid prototyping, free voice production within 1 working day.
Delivery Date
Delivery punctuality rate reaches 98.83%, orders of 500K can be delivered within 5 days.
Customization
Assessment within 1 day, sample delivery within 5 days, mass production possible within 15 days.
Service
End-to-end technical support for one-on-one remote online teaching teams.
Business Processes
6 STEPS TO START COOPERATION AND WIN-WIN. WE PROVIDE YOU WITH PROFESSIONAL VOICE IC SERVICES
01.Requirement communication
7×24 hour online service
02.customized plan
Rapidly assess accurate quotations
03.Free sample
Samples can be ready within 24 hours.
04.Confirm the sample
Mass production with fast delivery
05.Functional testing
Guarantee quality, three-day delivery
06.After-sales service
Provide free technical support