Choose from 54 different frequencies includes Mid and Low bass tones!
This app can play 5Hz, 10Hz, 15Hz, 20Hz, 25Hz, 30Hz, 35Hz, 40Hz, 50Hz, 60Hz, 70Hz, 80Hz, 90Hz, 100Hz, 150Hz, 200Hz, 250Hz, 300Hz, 400Hz, 500Hz, 600Hz, 700Hz, 750Hz, 800Hz, 900Hz, 1KHz, 1.5KHz, 2KHz, 2.5KHz, 3KHz, 3.5KHz, 4KHz, 5KHz, 6KHz, 7KHz, 7.5KHz, 8KHz, 8.5KHz, 9KHz, 10KHz, 11KHz, 12KHz, 12.5KHz, 13KHz, 14KHz, 15KHz, 16KHz, 17KHz, 17.5KHz, 18KHz, 19KHz, 20Khz, 21KHz and 22Khz sounds.
Great as mosquito repellent, dog or cats repellent, stop dogs barking, stealth tone, glass breaker and dog whistle to train your pets, or just to test your hearing, test your audio systems as signal generator.
You can do a prank on people with it too (adults can't hear the highest tones above ~15Khz).
- Please give me feedback for improve this application.
[Example of effect]
Many animals such as dogs, cats, dolphins, bats, and mice have an upper frequency limit that is higher than that of the human ear and thus can hear ultrasound.
Species, Approximate Range (Hz)
beluga whale, 1,000-123,000
You can change Background image from 5 beautiful design. (only AdFree version.)
(Available Background images: Wood, Dark Metal, Leather Brown, Metal, Pink)
You can change 13 Solid Background Color, 11 Button Label Color and 13 Label Color.(only AdFree version.)
(Available Color: Black, Blue, Cyan, Dark Gray, Gray, Green, Light Gray, Magenta, Orange*, Pink, Red, White, Yellow*) *Button Label Color cannot choose.
Vibration function available.(only AdFree version.)
Slider function.(only AdFree version.)
Duration function. (Stop automatically. It saves last value.)
Ascending, Descending, Random order functions.
Timer function. (You can use for alarm. It saves last value.)
If long click Frequency button you can set Start and End position.
You can reset the position with same way.
Please refrain from long-time use and the use at the megavolume.
Please refrain from an earphone, the use by headphones.
Please stop use as soon as I felt the adverse effects including the headache.
This application is not a thing to guarantee an effect.
Most adults can't hear the sound.
But it's so annoying for most young people, animal, insect.
Its depending on your ear-sight.
Long click to set them as ringtone or notification.
Check your ear-age now!
1.Set beep duration.
any other request?
You can put it to sdcard if Android 2.2, 2.3, 3.0, 3.1, 3.2, 4.0
- Waveform selection: sine, square, triangle and sawtooth.
- Frequency setting by:
-- 0.1Hz step
-- semitone step
-- specifying frequency directly
-- swiping frequency text.
-- combination of standard pitch (A4) and pitch notation.
Is easy to tune the instrument.
Various experiments with a wide band of frequencies is available.
Frequency setting: C, C #, D, D #, E, F, F #, G, G #, A, A #, B
Warning: This sound by the frequency of the sine wave is generated in real time. So the sound is very large.
(Not a wave file.)
Do not close your ears to the sound.
Required: Adobe Air
Leave your valuable feedback. (Web): http://goo.gl/YHv8C
Test your phone's speaker, headphones, subwoofers, speakers and amplifiers.
Test your hearing.
- Variable frequency tone generator
- Sampling rate at 44100 (CD quality)
- 16bit PCM encoding (CD quality)
- Time span selectable
Extra features: Anti Mosquito and Dog Whistle (or Cat Whistle).
Anti-Mosquito: the ultrasonic Mosquito repellent generator emits a very unique high frequency sound (ultra sound) that most mosquitoes find distasteful and prevents you from getting bitten by mosquitoes.
Dog Whistle: train your dog to do tricks, train your dog to stop barking, or if there is a dog next door, use this app to make it silent.
*** OUTPUT ***
Visualization is done on real like device that shows:
- Audio level
- Noise Level
- Current frequency
- Frequency oscilloscope
- Time to Frequency chart
*** ACCURACY ***
Application is calibrated with real tone generator. Internal microphone limit is around 1800 Hz, but under this frequency accuracy is very respectable +/- 0.5 Hz.
*** NOISE LIMIT ***
You can easily set a limit that removes noise treshold with included trackbar.
*** EXPORT ***
You can export TTF chart to comma-separated file that you can later analyze with MS Excel or other table processor. Application has file directory browser with Save and Overwrite feature.
Please don't hesitate to write us for details or questions: email@example.com
Resistor colour codes - tells you the resistance, tolerance, upper and lower values, and E-series information for any colour-coded resistor.
Ohm's Law and Power Calculator - Finds any unknown quantity in terms of voltage, current, resistance and power dissipation for any omhic component.
Series/Parallel Value Calculator. Finds the total value for any series or parallel combination of resistors, capacitors, or inductors. The calculator can also find an individual value given the value for the whole combination.
Reactance Finder - Calculates the reactance of any capacitor or inductor from the circuit frequency.
Power Triangle - Calculates real, apparent, and reactive power dissipation as well as impedance phase angle in any electrical system.
Resistivity - Finds the resistance of any wire or prism from its dimensions and resistivity, or vice versa.
Magnetic Fields - Finds the force that acts on a conductor in a magnetic field.
Capacitors - Finds the charge and energy stored in a capacitor.
ALL OF THE FEAURES OF THE FREE VERSION, PLUS:
Amplifiers - Finds the voltage gain of an inverting or non-inverting operational amplifier circuit, as a ratio and in decibels.
555 Astable/Monostable Circuits - Finds the output frequency, period, and duty cycle of the popular NE555 timer IC, for given component values.
Resistivity Table - Lists the resistivity and temperature coefficient for 35 common materials.
Capacitance - Finds the capacitance of two parallel plates separated by a dielectric.
Permittivity Table - Lists the average dielectric constant for 35 common materials.
Waveforms - Finds the peak, RMS, and mean voltages of some common AC waveforms.
Resonance - Calculates the resonant frequency of a series RLC circuit, and the impedance at this frequency. Plots a graph of impedance against frequency.
LED Resistors - Finds the minimum resistance needed to prevent damage to a number of LEDs in series. Also finds suitable E6, E12, and E24 series resistors.
Star/Delta Resistors - Converts a star (Y) resistor configuration into the equivalent delta (Δ) configuration, or vice versa.
Capacitor Charging - Finds the voltage across a charging or discharging capacitor after a given time period.
List of 4000 Series ICs - Details of common integrated circuits.
Many more electrical utilities coming soon, with regular updates. Plus, NO ADS.
Please rate or give feedback. Feel free to give suggestions or comments.
Frequency: the newest and best-looking way to see what apps you use, how much you use them, and when you use them. See what apps you never use and uninstall them right from the app!
Frequency features the following:
✓ Holo Card UI design
✓ View all apps you have used in the timeframe, or all apps you have installed in the timeframe
✓ Show the amount of time you have used your apps Today, Last Week, Last Month, Last 3 Months, or All Time
✓ No-Show list for app usage that you don't want to show
Frequency Pro also includes:
✓ The background app-tracking process can start at boot instead of needing to start the app once your phone first boots up
✓ Change the app-tracking accuracy. By default, Frequency tracks your app usage every 30 seconds, but this can be raised or lowered. The more accurate you set the app usage accuracy, the more battery consumption the app uses
★Frequency Pro has peaked at:★
• All apps → #37 in Top New Paid Apps
• Tools category → #2 in Top New Paid Apps
• Tools category → #16 in Top New Free Apps (Free version)
NOTE: This app doesn't currently work properly in Android L, due to its change in API. We're currently fixing this.
It can be used to measure your hearing range, as a mosquito repellent, to annoy your friends and as a dog whistle.
- Choose any frequency
3.2.3 Updates (language updates - help needed)
- change frequency while on
- app 2 SD for Froyo
- fixed clicking, less load on CPU for older phones
All controls are in real time so you can dynamically change the sound signals.
Frequency Sound Generator features:
- 3 oscillators
- every oscillator can generate 3 wave forms
- accurate frequency selector with fast and slow controls
- volume control
- wave signal modulation control
- CD audio - 16 bit PCM encoding / Sampling rate at 44100Hz
- oscillator range is from20Hz to 20KHz
- 2 speed frequency selector
The figure has been shown above, shows the raw data from the microphone picked up sound data.
The figure below is being displayed, FFT data from the microphone picked up sound (fast Fourier transform) shows the frequency components over.
It shows the heavy processing is performed in real time, considerable CPU power. That will consume battery.
May not work or if the screen updates rather limp lower the CPU specifications.
Since the microphone is removed from the raw data, some models may not work correctly.
NTT Docomo SH-author of the work was confirmed by 03C. Here it works fine.
Fixed a border deviation
Added the display of the FFT part scales
Ver.0.1.0 2011/9/24 初版作成
By tapping a button, allowing ON / OFF of the automatic switching of the screen aspect.
When set ON, a red indicator appears at the top left button.
When the setting is OFF button in the upper left nothing.
When viewed on the gallery next to ON, you do not want to switch, such as e-mail is useful when you set to OFF.
So · widget, you can not start as an app.
· Widget size has been adjusted to WVGA. QVGA screen size, etc. may be lacking screen.