Free Audio Waveform Generators of 2025
Best Choice1
UNI-TUNI-T UTG1042X 40MHz 2 Channels Essential-Series Arbitrary Waveform Generator 200MS/s 4Kpts Memory Depth USB 4.3 Inch Display 150MSa/s Sampling Rate 16-bit High Resolution
Main highlights- UTG1000X built-in non-volatile multiple kinds of standard waveforms, commonly used functions, mathematical functions, trigonometric functions, window functions.
- The UTG1000X series redefines the entry level waveform generator by bringing advanced capabilities like 16-bit high resolution, 150MSa/s sampling rate to our most affordable line of generators with built-in arbitrary waveforms enabled.
- Sweep mode function. The UTG1000X Series delivers a powerful low cost signal generator for students and engineers alike.
- 40MHz, 2 channels, 200MS/s, Memory Depth: 4Kpts, 4.3in display, USB. Modulations: AM, FM, PM, ASK, FSK, PSK, PWM, Sweep. Accessories: BNC straight-through cable, BNC to alligator clip cable, Power cord, USB2.0 printing cable, English download guide, multi-language safety manual, calibration report (COC).
- 2 Channels, 40MHz maximum frequency output, multiple waveform signals are available: sine wave, square, ramp, pulse, noise, DC, arbitrary waveform. Multiple analog and numerical modulation functions Modulation types: AM、FM、PM、ASK、FSK、PSK、PWM.
9.8Exceptional
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Value for Money2
HantekHantek DSO2D10 Digital Storage Oscilloscope 100MHz Bandwidth 2CH Dual Channel 1GSa/s 8M Memory Depth with 1CH Waveform Generator
9.9 movability9.7 worth the money9.5 Screen displayWhy we love it
Cost-effective for entry-level users.
Versatile with waveform generator and multiple trigger modes.
Compact and lightweight design.
9.6Exceptional
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3
OWONOWON Waveform Generator, 60MHz Bandwidth,300MSa/s Sampling Rate, 14 bits Vertical Resolution, 8K Waveform Length, 5 Basic Waveforms, 160 built-in Arbitrary Waveforms, with 3.6IN LCD Display DGE1060
Main highlights- Waveform Generator: With 60MHz bandwidth, real-time sampling rate 300MSa/s, record depth 8K, 14 bits Vertical Resolution,waveform length 2-8k points
- User-Friendly Interface: Benefit from a 3.6-inch TFT LCD display and an intuitive function setting area, ensuring clear and effortless waveform observation.
- Ultra-thin Design: This portable multimeter boasts an ultra-thin body for effortless handling. Equipped with convenient shortcut keys, it enhances man-machine interaction, effectively boosting work efficiency.
- Easy Operation: Features AM, FM, PM, and FSK modulation modes, sweep and Burst functions, and storage for 16 digital arbitrary waveforms. Also compatible with PC remote control.
- Comprehensive Waveform Output: In addition to the standard 5 basic waveforms, this generator also includes 160 built-in arbitrary waveform like exponential rise, exponential fall, sin(x)/x, step wave, and others. You can easily find the waveform that suit your needs.
9.5Excellent
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4
Seesii18% OffProfessional Upgraded DDS Signal Generator Counter, Seesii 60MHz LCD Display High Precision 200MSa/s Dual-Channel Arbitray Waveform Function Generator Frequency Meter
8.7 Simple to use8.2 Precision8.0 DurabilityWhy we love it
Enhanced signal stability with advanced FPGA and MCU.
Stores 99 custom settings; user-friendly software included.
Precise, low-distortion output with multiple waveform options.
9.4Excellent
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5
UNI-TUNI-T UTG962E Arbitrary Waveform Generator Function Generator Kit 60Mhz Dual-Channel 200MSa/s 14 Bits Frequency Signal Generator
Main highlights- UNI-T Function Arbitrary Waveform Generator UTG962E. Dual channels. Ch1 - Ch2 combining. Output waveform: Sine, square, pulse, ramp, noise, DC, arbitrary. Modulation types: AM, FM, PM, FSK, Line, Log. 24 groups non-volatile arbitrary waveform storage.
- Sampling rate of 200MSa/S. TTL level signal compatible 6 digits high accuracy built-in frequency counter. Frequency counter with output range: 1μHz-60MHz
- One of the best ready-to-use function generators. Value pack includes: UTG962E function generator, power adapter (USA standard), USB cable power cord, BNC cable, BNC cable with alligator clips, paper manual, eManual
- Full-band resolution of 1μHz. DDS (direct digital synthesis) method applied. 14 bits vertical resolution. Support frequency scanning and output
- Easy access to UNI-T 7/24 1 to 1 user support. If you encounter any problems during use, please contact us first (via e-mail) and our customer service team will deal with your problem as soon as it is received
- Budget friendly and intuitive generator for hobbyists, novices, students, small labs, basic projects, ham radio alignment, pro audio measurements. Learn and update skills, work with audio gear, DC offsets, wow & flutter test, amplitudes, receiver test, circuit test, filter troubleshooting, refurbish turntable.
9.2Excellent
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6
KoolertronKoolertron DDS Signal Generator Counter, 2.8in Screen Display 60MHz High Precision Dual-Channel Arbitrary Waveform Generator Frequency Meter 275MSa/s Function Generators for Scientific,Laboratories
Main highlights- [Using Dual-channel DDS signal and TTL electric level output to generate precise] stable, low distortion output signal. includes Sine wave, Square wave, Triangle wave, Saw tooth wave, Pulse wave, white noise, user-defined waveform etc. each channel can be independently set the parameters.
- [This Signal Generator] is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research.
- [The Signal Generator Counter] can be connected to the mobile phone for control and operation, which is very convenient. After downloading the APP, you can view the relevant data on the mobile phone, and you can set all functions through the mobile APP, and support the import and export of arbitrary waveform data, which is convenient and fast.
- [Function Generators] With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function.
- [Can Draw Arbitrary Waveform]：PC software and communication protocol are provided for free, arbitrary waveforms can be drawn using the PC software; using the communication protocol can be secondary development programming; all functions of the instrument can be controlled by the PC software (The instrument can be also finished all operations without connecting to the computer.)
- [Arbitray Waveform Generator] adopts large scale FPGA integrated circuit and high speed MCU microprocessor. The internal circuit adopts active crystal oscillator as benchmark. So the signal stability is greatly strengthened.
- Storage feature: You can store 100 groups instrument state parameters set by the user, can be called up to Reproduce. Frequency output of Sine wave can be up to 80MHz. 275MSa/s sampling rate. Waveform Length of each one is 8192 and vertical resolution is 14 bits
9.1Excellent
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7
GoupchnGoupchn Programmable DDS Signal Generator 60MHz Dual Channel Arbitrary Waveform Function Generator Frequency Meter Cell Phone Control Signal Source
Main highlights- Voltage Controlled: The frequency, amplitude and duty cycle of the output can be controlled by an external analog voltage signal to achieve voltage-controlled sweeping frequency, sweeping amplitude and sweeping duty cycle, which are widely used in industrial debugging.
- Programmable Output: The type of waveform output such as sine wave, square wave, triangle wave, arbitrary wave, output time and output sequence can be freely formulated to realize automatic work. You can use the mobile phone software to control the signal source to work.
- Package include: 1 set PSG9060 signal generator, 1PC charger cable, 1PC bnc male to male test lead, 1PCS USB data cable, 1PC bnc to alligator clips test leads, one quick start manual.
- Modulation: The modulated waveform can be output in single channel or dual channel. The process of adding information from a signal source to the carrier to make it suitable for channel transmission. It is the technology that makes the carrier wave change with the signal.
- Firmware Update: Firmware upgrade can be updated at any time to fix bugs, or used for your special customization needs. Press the corresponding soft key to confirm entering the update mode, and perform a one-key firmware upgrade by connecting with the PC software.
9.0Excellent
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8
SeesiiUpgraded Signal Generator, Seesii 80MHz 275MSa/s Dual Channel Signal Source Arbitrary Waveform Function Generator Frequency Meter, Support Phase Difference of 0-359.99° Adjust & APP Control
Why we love it
Enhanced signal stability with FPGA integration.
Supports app and PC software control.
Adjustable phase difference for dual channels.
8.9Very Good
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9
WalfrontDDS Generator 3-Channel Arbitrary Waveform Function Generator Frequency Meter 4 TTL Level Output(FY8300S-20M US Plug 100-240V)
Main highlights- With output short-circuit protection, all signal output terminals can work under load short-circuit conditions 60S. Completely independent three-channel output (equivalent to three independent signal sources), capable of working synchronously, with precisely adjustable phase difference.
- The instrument uses DDS direct digital synthesis technology to produce accurate, stable and low-distortion output signals. All parameters are calibrated by internal procedures. All software of the instrument is equipped as standard. All functions of the instrument can be controlled by the software of the host computer. Machine software to edit arbitrary waveforms and save them to the signal generator to output waveforms.
- Rich shortcut keys greatly simplify the complicated operation process and greatly enhance the operability of the instrument. Communication protocol is open, making secondary development very easy. Large-scale integrated circuits, surface mount technology, high reliability, long service life.
- FY8300 / FY8300S series three-channel function / arbitrary waveform generator is a set of function signal generator, arbitrary waveform generator, pulse signal generator, four-channel TTL signal generator, VCO, frequency sweeper, counter and frequency meter, etc. All-in-one high-performance, cost-effective and versatile signal generator.
- Adopt DDS direct digital synthesis technology to produce accurate, stable and low distortion output signal. Press and hold the OK key during use, you can quickly save the parameter information currently output by the instrument, and the saved parameters can be automatically loaded at the another boot. Standard channel tracking function, when the tracking is on, all parameters of the three channels can be updated at the same time according to the user's configuration.
- 100M frequency meter function: It has four measurement methods: frequency measurement, period measurement, positive and negative pulse width measurement, and duty cycle measurement. The maximum measurement frequency of the instrument can up to 100MHz, and the minimum measurement frequency is 0.01Hz.
- 100M :100M frequency meter function: It has four measurement methods: frequency measurement, period measurement, positive and negative pulse width measurement, and duty cycle measurement.
8.6Very Good
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10
WalfrontFY8300 DDS Generator 3-Channel Arbitrary Waveform Function Generator Frequency Meter 4-Channel TTL Level Output(30M US Plug 100-240V)
Main highlights- stable :Using 2.4-inch (320 x 240) color display, with stable performance.All parameters can be calibrated by internal procedures. Powerful communication function, which can be controlled by PC.Output short circuit , all output terminals can work more than 60S under load short circuit.
- parameter save function :Press and hold the OK key during use, you can quickly save the parameter information currently output by the instrument, and the saved parameters can be automatically loaded at the next boot.can be downloaded to the instrument output waveform after editing arbitrary waveform on PC.
- DDS :Adopt DDS direct digital synthesis technology to produce accurate, stable and low distortion output .With digital output function, can realize any CMOS level with amplitude of 0-12V.
- 64 groups :With 64 groups of arbitrary waveform storage bits, each group has a storage depth of 8192 x 14bits (the longer the waveform storage depth, the more waveform details are saved, and the details can be restored with
- 3-channel :Completely independent 3-channel output (equivalent to three independent sources), capable of working synchronously, with precisely adjustable phase difference,display 3-channel output state at the same time.when the tracking is on, all parameters of the 3 channels can be updated at the same time according to the user's configuration.
8.5Good
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