- 1Hz to 20kHz bandwidth
- CD quality sampling at 16bits 44.1KHz
- digital frequency input (tap to set)
- 5 programmable frequency presets (long press)
- ultra low latency control slider
- built in oscillators for Sine, Square and Bopper waveforms
- stereo sound output switches for Left/Right ON/OFF
- high precision frequency control dial
- plays in background (home)
Test the bandwidth of your phone's speaker (or your ears...), create true uncorrelated noise.
Make sure to check out our Spectral View, RTA and other apps in the Market.
Bugs and comments to email@example.com
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.
Choose from 44 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, 200Hz, 300Hz, 400Hz, 500Hz, 600Hz, 700Hz, 800Hz, 900Hz, 1KHz, 2KHz, 3KHz, 4KHz, 5KHz, 6KHz, 7KHz, 8KHz, 9KHz, 10KHz, 11KHz, 12KHz, 13KHz, 14KHz, 15KHz, 16KHz, 17KHz, 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).
- If no Internet connection, Ads will be disabled automaticaly.
- 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
Pro version supports only PORTRAIT mode. (SD version supports only LANDSCAPE mode.)
Duration function. (Stop automatically. It saves last value.)
Ascending, Descending, Random order functions.
Timer function. (You can use for alarm. It saves last value.)
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.
Additionally these carrier signals can be AM, FM or PM modulated or swept in frequency. The modulations can be enabled on their own or in any combination.
The square and triangle signals have a duty-cycle that can be set from 1% to 99%.
The ArbGen app adds frequency resolutions below 1Hz, automatic and customized saving of all parameters and the arbitrary function generator.
Equalizer and audio effects works with a lot of popular players and stream audio services. You able to use Simple Eq with players like Pandora, Spotify, TuneIn Radio, mosic from Vkontakte and other.
- Equalizer, that allow controll the frequency envelope of the sound.
- Bass boost. Is an audio effect to boost or amplify low frequencies of the sound.
- Virtualization. Is an audio effect to virtualize audio channels.
Also you able to download more advanced equalizer: Equalizer FX application with profiles ( https://play.google.com/store/apps/details?id=com.devdnua.equalizer.free )
The app is bilingual in German and English and has App2SD, where the app is very small.
It is possible to save the 5-tone combinations.
Now: Save as wav-File, register und use als ringtone!
If you have questions you can contact us via firstname.lastname@example.org
Using VolumePlus your phone will get a boost in bass, treble, and if you're using our presets, you can finally experience the quality of music that you truly deserve.
Being system wide, VolumePlus works with Google Music, Pandora, Slacker, and every other music software on your device (that doesn't have a built in EQ). Volume+ might not get you the same experience that you get with those over priced headphones, but what we can promise you is that for $2, you will get music that is finally worth listening to.
Note: INCOMPATIBILE/NOT SUPPORT JELLY BEAN version of android.
Please rate this app, instead of giving one star better send feedback.
By downloading this application you agree to the fact that, as this app exploits the EQ API included in Gingerbread and it is not meant to be achieved under normal circumstances, I am NOT to be held responsible for anything negative that may occur, such as breakage to your phone or phone's speaker.
I will also take no responsibility for any damage that may occur to your hearing. This app will allow you to boost the volume of the headset, bluetooth headset and modify the inbuilt EQ settings. As a result, you can now increase the volume of the headset/bluetooth headset way above the recommended maximum and so, may cause permanent damage to your speaker and/or hearing.
KW: volumeplus, volume plus, volume boost, volume+
A Cyanogen Mod 7 or MIUI ROM is HIGHLY recommended. Running this app on a Stock ROM/Kernel may result in it not working, being far too quiet, or getting even quieter. PLEASE don't comment or rate badly if you are on a Stock ROM as this is most likely the problem.
The full version is available on the Market for 0.99p.
Full Version includes:
* +8 in all settings (this goes to +4)
* 9 EQ presets (this has 1)
* Advanced Settings - gives you complete EQ control: you can control each EQ band independently. (NOT INCLUDED IN THIS VERSION)
This Application is ONLY for phones running Gingerbread.
It will NOT work on any other version of Android but should work on ANY phone running Gingerbread (2.3).
ALL SETTINGS CAN BE ALTERED SEPARATELY!
* On/Off toggle
* Volume Boost
* EQ pre-sets
* Bass Enhancer
* Stereo Widener (only for Headset/Bluetooth Headset)
* Virtual Room Effect (VRE - Echo)
ALL FEATURES AVAILABLE FOR:
* Phone Speaker
* Bluetooth Headset
<* Please use the Headset Settings/Bluetooth Settings with caution. It could SERIOUSLY damage your hearing! (see terms and conditions within the app or the DISCLAIMER below) *>
There may be issues on certain custom ROMs.
This application works in a similar way to DSP Manager but with this tool you can push the volume up much higher. It has options to boost the main Speaker Volume and add a Bass Enhancer.
Please use this tool wisely. It can SERIOUSLY damage your speakers if not used carefully. I cannot stress this enough.
Please see the DISCLAIMER below or the terms and conditions within the app.
By downloading this application you agree to the fact that, as this app exploits the EQ API included in Gingerbread and it is not meant to be achieved under normal circumstances, I am NOT to be held responsible for anything negative that may occur by using this app, such as breakage to your phone or phone's speaker.
I will also take no responsibility for any damage that may occur to your hearing with the new features included in v1.5 onwards. This app will now allow you to boost the volume of the headset, bluetooth headset and modify the inbuilt EQ settings. As a result, you can now increase the volume of the headset/bluetooth headset way above the recommended maximum and so, may cause permanent damage to your speaker. There is also a small bug that may occasionally occur, where upon first changing settings the speaker may emit a high pitched whine. This can be fixed by turning the settings off or fixed permanently by rebooting your phone.
The paid version of this app is available for FREE on my website - www.androidaudiohacks.com
Download and use at your own risk.
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
*** 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
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
2. Visualizer: visualizing power of frequency 5 ranges.
3. Album Mode:
4. Folder Select: shows only the folders which include music files.
Playlist consists of songs in the foler. When you select a shuffle (random) play, sequential play, Repeat One, Repeat All, provided.
5. Sleep Timer: 5-120 minutes by 5 minutes step which automatically quit application for sleep.
6. BASS, Virtualizer, Reverb: Sound Effect when using earphones.
Widgets 4 * 1, 4 * 2 Support
It is better than other box calculation software because it also considers approximate cabin gain, power compression and port compression. Because of that, it can also predict final SPL in your car.
It is more useful because it knows how to handle total box volume instead of net box volume. It can also calculate vented (ported) enclosures in the opposite way (e.g. it can calculate vent size or total box size for desired vent).
It can even calculate optimal box for your car and equipment, for burping or for music, depending on priority (SPL to SQ).
Projects can easily be saved and loaded. Boxes, Drivers and Vehicles can also be saved and loaded separately. Units an constants can be changed under settings.
Please email me if you find any bugs or have any troubles.