You need to dial number then press the button "Dial"
1. Dial the number
2. Put your smartphone near the microphone of your phone then press "Dial"
If it doesn't work, plug earphone on your smartphone, put an earphone near of the microphone and press "Dial" again.
AndroiDTMF is a DTMF dialer for analog (PSTN) landline telephones.
Fast and easy way to dial any number from your PSTN phone with DTMF tones.
You can simply dial a number or you can import from contact list selecting messaging and than AndroiDTMF. For dialing just press the play button and put your Android phone near the the analog telephone's speaker. It will play the number in DTMF tones to your PSTN phone. Press menu for the "Saved" numbers. And in the settings you can modify the tone lenghts and delays.
DTMF tones: 0123456789*#
tags: DTMF, dialer, PSTN, tone, landline, DTMF
Play a tone, any tone. This app is basically two apps in one. One side is a simple DTMF tone generator, and the other side is produce-any-tone-you-want signal generator. You can hear what any frequency sounds like. The help screen in-app also provides the official frequencies for DTMF tones. When playing back recorded DTMF numbers, put your Android phone near the analog telephone's speaker so that you can dial through your PSTN (Public switched telephone network) phone.
1. DTMF specific tones
2. Ability to save unlimited DTMF tones for common use (and change playback time for tone and pause)
3. Proper playback for recorded numbers so that you can dial by clicking a single button
4. Ability to play any tone in the second app page.
5. No permissions required! No ads!
6. Easy share if you like it!
Q: What are all the pause and play times?
A: By default, recorded playback transmits signaling rate of 93 ms per tone with 40 ms between tones. Pause characters are 1 second.
Q: What does DTMF stand for?
A: Dual-tone multi-frequency signaling.
Q: What is DTMF used for?
A: Telecommunication signalling over analog telephone lines, aka tone dialing.
Hi, my name is Danial Goodwin. I am a developer who creates many different applications. I love working on them, making them better, and providing features users didn't even know they wanted yet ;). But, unfortunately, I don't have time to keep updating every single one of them. The good news is that I love getting feedback <email@example.com> about my apps AND the more feedback I get about a particular app, the more likely I am to update it, especially if many users request the same feature. =]
More technical info:
DTMF Tone Generators allow Dual-Tone Multi-Frequency (DTMF) signaling which allows machine control remotely over standard telephone lines. Some HAM radio operators use this too.
OPEN SOURCE: I've decided to share all the source code for this app on GitHub! https://github.com/danialgoodwin/android-simply-tone-generator
DISCLAIMER: This app is not meant to be for everybody. Development work going into this app will be for the small percentage of people that do like it. ;)
WARNING!! This app generates a resolute signal at +0dB relative to your amplification. Please observe your external volume settings when using this app.
- 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
- adjustable random white noise
- stereo sound output switches for Left/Right ON/OFF
- high precision frequency control dial
- plays in background
If you're looking for an easy, intuitive way to create audio tones, look no further! Tone Generator Pro Free is the ad free version of Tone Generator Pro, allowing you to create high quality audio waveforms for free.
** Example Usage **
-Test audio equipment
-Verify headphone frequency range
-Create infrasound waves to drive larger speaks. Your own Android infrasound generator!
-Create high frequency sounds to annoy your friends
If you find this tool useful, buy Tone Generator Pro to support the developer!
As always, we love hearing from and implementing user ideas! Send us an email to let us know what's up!
The human can hear from 20Hz to 20,000Hz, you can use this tool to test your hearing.
To use it, simply select the desired frequency using the slider and turn On the sound by toggling the play switch!
The user interface is very simple and clear!
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 firstname.lastname@example.org
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
This app can be used in science education in conjunction with a sound meter to determine the inverse-square law for sound intensity, or with another tone generator to produce audible beats (by combining two tones of slight different frequencies).
If you have any questions, comments, or would like to see modifications/updates, please email me at email@example.com
You can send URL, image and files.
Preparation) After installation, please start receiving state. Then receives the information in the background.
To transmit) Share and share from a browser from the "Send" Please select. A dialog box appears, tap the image please.
Receive) beside the sender terminal, just keep in the home screen is displayed.
❖ Delay calculator - A quick and easy way to convert from metres / feet to mS.
❖ DAW disk space calculator - Want to know how many tracks you can record for your 30 minute master piece and at what sample / bit rate based on your hard drive capacity, then this is the tool for you.
❖ SPL calculator - Simply enter amplifier power, loud-speaker sensitivity and a distance to find your maximum sound pressure level.
❖ Impedance calculators - Calculate total loads for a group of speakers in parallel and series configurations.
❖ Tone Generator - Select from 10 common sine wave frequencies, 20hz to 20khz sine wave sweep, pink and white noise.
❖ dBu / dBV to voltage converter, wavelength calculator, constant voltage impedance converter (70v + 100v line), and UK radio mic frequency lists (Ch38, Ch69 and de-reg).
❖ Aspect ratio calculator - Need to work out a videos aspect ratio; simply enter the dimensions and press calculate, alternatively enter one dimension and select the aspect ratio to get the second dimension.
❖ Projection distance calculator and screen resolutions guide.
❖ DMX address - dip switch - Simply enter the DMX address to receive the correct dip switch settings, then select an offset (Number of DMX channels your fixture requires) and use the plus and minus buttons to quickly address multiple fixtures.
❖ Beam width calculator and Gel cut calculator.
❖ Power voltage current calculator - A simple Ohm's law based calculator.
❖ Voltage drop calculator
❖ Pin-outs for common audio-visual connectors
Additional features available in AV Tools Pro:
✓ No Adverts
✓ Custom frequency tone generator with play in background facility
✓ Favourites feature - quick access to your most used tools.
✓ Tablet layouts
If you would like to request a feature or report a bug please email me, otherwise please leave a comment.
DTMF Tone Generator Pro is based on my free (ad-supported) DTMF Tone Generator app. The Pro version removes advertising, and adds the ability to record, edit and play back up to 10 different sequences of DTMF tones, as well as an enhanced volume control.
Not sure if this is for you? Try the free DTMF Tone Generator first!