Our decibel meter uses your built-in microphone to measure sound volume in decibels (dB) and also displays samples on graph.
NOTE: Microphones in most devices are aligned to human voice and the maximum values are limited by the hardware. Very loud sounds (~90 dB and more) may not be recognized. Automatic gain control used in some devices may interfere with the operation of this noise meter.
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The app will feature all the practical information as some nice and nifty features like:
- Notifications before start of favorite artists
- Friend Finder (please note: this will be working when the floorplan is available)
- Point of interest (please note: this will be working when the floorplan is available)
- Cool camera feature
- b2s Radio
And more, you can activate the flash function will launch the flash according to the sound, music and even your voice!
This free sound level meter (or decibel meter) is an essential tool for your smartphone :)
And all this in an application that is less than 750kb!
Features of this SPL meter include:
Analogue Dial with Max and Min indicators.
Weighting – A, C or None . (A weighting filters the high and low frequencies according to how the ear perceives sound loudness). Results are in dB, dBA or dBC depending on weighting.
Averaging of SPL, Clear and Pause buttons.
Octaves and third octaves - Frequency spectrum of the sound.
Graph – Shows the time depedence of the sound.
Autoscale or manual (pinch & pan) Y-Axis.
Relative button – if looking for differences, tapping REL will remove the current averaged value from the reading.
Calibrate option – If you have a calibrated SPL meter or known loudness source, you can use this option to calibrate the meter. (However its still for Indication Only).
More technical details can be found on the website.
It is very easy to use and offers a lot of useful features: high RTA refreshing rate and frequency resolution, adjustable sound pressure level amplitude scale (up to 150 decibels), RTA peak hold function, flat reference line, local peaks...
RTA measurement can be recorded on 3 separate channels. User can later compare SPL (dB) and frequency response charts between the channels.
It also includes a signal (tone) generator, which helps us measuring the frequency response of a sound system.
Input/output can be adjusted to Internal, AUX or Bluetooth. However, all I/O options and combinations do not work on all devices.
Microphone can be accurately calibrated for each frequency band separately.
View max/min/average decibel values, and "pause" the meter to see values at any particular state using the on/off button.
NOTE on using the "Scale" setting:
This version differs from previous versions in that it includes a "scale" setting. During testing, we found that some Android devices require a "multiplier" to get dB values that more accurately reflect real life. You may need to adjust this scale value anywhere from 1.0 to 2.0 depending on the particular device. For example, an HTC Incredible requires a scale of about 1.45 to be more consistent with Radio Shack SPL meters.
You will also likely need to adjust the "Trim" value depending on the type of device you have, and the device's microphone sensitivity. Between the scale & trim settings, you should be able to achieve values that at least approximate real dB meters.
Professional realistic vintage audio LED VU meter for your device.
It shows relative audio loudness in decibels of the ambient noise or the music played on your device.
■ relative reading in dB
■ custom meter fallout speed
■ custom meter calibration
■ realistic vintage analog look
■ source: microphone or music played
■ 14 LED or VFD display
■ tablet support
Harmonicity is a measure of the sound energy in the harmonics relative to the rest of the spectrum.
Harmocity varies with age, gender & which vowel you pronounce. Higher harmonicity values indicate a purer sound. Whilst lower jitter and shimmer values indicate a purer sound.
This meter is supposed to be used with a continuous consistent sound, e.g. Pronoucing a vowel, or a tone from a speaker/instrument. Rapidly changing tone/sound will give nonsensical output.
FOR INDICATION ONLY. Harmonicity will vary depending on how close the source is to the microphone. Microphone sensitivity varies with frequency and from device to device. Even amoungst scientific literature, it is difficult to find consistency in absolute reported values.
Jitter is a measure of the frequency variation of the sound. The relative jitter is shown as a %.
Shimmer is a measure of the amplitude variation of the sound. The relative shimmer is shown as a %.
Autodetects sound – App will only start measuring when a sound is detected.
Averaging - After 0.7s, the app will start averaging the Harmonicity, Jitter, Shimmer and freqency values. This will continue until the sound is stopped at which point the last 0.7s of data is removed from the averaged values.
Musical Note – The current detected frequency is converted into a note based on western 12 tone equal temperament. Use to tune your guitar or other instrument if you wish.
Pause button – Useful if in a noisy environment and measurement doesn't auto stop.
FFT Spectrum – Autoscaling Sound Intensity between 0 and 2 kHz.
Range: 100 Hz to 2 kHz fundamental harmonic frequency detection.
Internet Permission is for link to website with more info/user guide for app.
The fast fourier transform (size 8192) is performed on the last 0.74s of data to produce a frequency spectrum (0 to 5.5 kHz with 1.35Hz resolution). This frequency spectrum is windowed between 100 and 4 kHz with linear fall offs to zero at 50 and 5 kHz. The fundamental frequency is determined from polynomial fitting to peaks. The harmonic energy is determined from the sum of the FFT signal at the harmonic freuquency plus 8 Hz either side. The noise is the sum of the rest of the FFT. The ratio of harmonic to noise energy is the Harmoicity and is displayed in decibels.
More technical details can be found on the website.
Recommended by "Sound and Vision" magazine.
Features 1/1, 1/3 & 1/6 octave RTA modes, Leq (wideband, Octave, variable duration), RT60 (wideband, Octave), Spectrogram, Peak frequency, Fast, Medium & Slow filters, Flat & A/C Weighting and film industry X Curve, Averaging, SPL Chart Recorder, Noise Criteria, White/Pink Noise, Sine, Square, Triangle, Sweep, Ramp and Impulse signals & loudspeaker polarity checker, L/R select. RTA Store & Load, Hann windows, "Keep Screen On", pinch to zoom, scroll to center.
Exclusive ISO 1/3 Octave Calibration - correct for your phone's microphone response. Octave calibration discs are moved up or down to obtain a flat response, and match the overall SPL to that of an external meter. Save/Restore of Cal files (Dayton Audio iMM-6 also supported).
Use: home theater, audio engineer, car audio, etc
AudioTool FFTs sets of samples recorded at the microphone. Aliasing reduced by Hann windowing. SPL calculated in realtime. Spectra may be saved as files on the SD card, then loaded and displayed with the live spectrum. The "Store" button stores the current live spectrum - "Load" shows a list of stored spectra to select.
To hide the buttons, tap the screen. To restore them, tap again. To zoom the scale, pinch the screen. To move the scale, drag it up or down (left or right).
The deciBel meter uses IIR filters and exponential averaging to calculate Flat, A and C weighted response at speeds of Fast, Medium and Slow speeds.
A pair of cursors can be shown on the RTA and Chart Recorder displays: each can be moved to any position, and will display the SPL & time/frequency values there. Initially, both cursors are positioned mid-screen - simply drag them to a new position with the fingertip. The cursors can be turned on and off in the Menu.
The loudspeaker polarity checker can be used to check whether a loudspeaker is wired in phase: connect the AudioTool output to the speaker under test, select "Polarity" from the signal generator screen, then return to the RTA screen. If the speaker is out of phase (polarity reversed) AudioTool will show "Pol ---", otherwise "Pol +++" if the speaker is in phase.
The Noise Criteria (available from the Menu) function shows a set of NC contours overlaid on the 1/1 Octave RTA display and the calculated real time current NC value is also shown.
The Chart Recorder shows a moving trace of the SPL measurements over the last few minutes.
RT60 measurements can be made by starting the RT60 component using the "RT60" button, and then using a loud clap (or similar) to trigger the measurement. RT60 can also be used with Pink Noise from the AudioTool generator. RT60 times measure how much reverberation or echo there is in a room or auditorium.
The Signal Generator generates White and Pink Noise, Sine, Square, Triangle and Ramp waves, Sine Wave Sweeps and Impulses. The generator uses multiple cycled buffers, refreshed randomly so ensuring truly random White/Pink noise. Pink Noise algorithm uses Kemmet's method to adjust White into Pink.
The frequency accuracy of the generated periodic signals is typically around 1%. Sine wave fidelity is good throughout most of the audio range. Other signals' leading and trailing edges show ringing and decreasing frequency response artifacts in the upper ranges, depending on the Android used.
Please consult the online manual for complete descriptions of the AudioTool features:
Please join the friendly AudioTool Discussion Group to request features, find Calibration files, or report problems. Feedback is always welcome:
Disclaimer: AudioTool's performance depends on your Android hardware, and is not guaranteed to meet any audio measurement or safety standards.
Filters: ANSI A and C weighting filters are provided. Just flip the switch to select the filter. A weighting rolls off low frequencies fairly steeply, and also rolls off high frequencies. Think of this as a "speech" filter. C weighting rolls off low and high frequencies slightly, think of this a a "music" filter.
Decay: Flip the switch to choose ANSI Fast or Slow. Slow will give you a better average reading, while Fast will follow peaks better.
Ranges: Select 40dB to 120dB in 9 ranges. Whatever range is selected, this is the value at the 0dB mark on the meter.
Calibration: SPL Meter comes pre-calibrated for the typical Android built-in and headset mic, but you can adjust the cal if you have a professional, calibrated meter to compare it to.
To adjust the calibration of your meter, follow these steps:
Set you reference meter to the same settings as SPL Meter (choose C and Slow, for example, on both meters)
Play pink noise or white noise through your system to get a reading on your reference meter in the range of 70-85dB
Go to the settings page on SPL Meter (touch the “wrench” in the upper right hand corner)
Select the correct mic setting (normally Internal)
Adjust the Trim field using the + and - buttons until the dB field matches the reading on your reference meter
Natuurlijk kunt u ook het geluid van de silencePower meten. Dat is de stilste Siemens stofzuiger ooit – slechts 70 dB(A). Ongehoord stil dus.
De app gebruikt de ingebouwde microfoon of hoofdtelefoon van uw iPhone. Download de app en start direct met meten.
Every smart phone, there may be an error of the measured value.
The noise of their surroundings, you can measure how much.
Android 80 ~ 100db of sound to the maximum value of the equipment may vary.
You're starting to sound measurement can check the maximum and minimum values.
Noise measurements require precise high-performance, we recommend using the sound level meter.
- Ouça a Rádio B2S!
- Faça pedidos de música! (provisório)
- Converse com a galera do Point B2S! (provisório)
- Consulte os últimos lançamentos do site! (em breve)
- Envie e leia suas MP's! (em breve)
showing the spectrum of the audio signal near the phone.
You can see the visualization of your voice or music. Additionally it will display frequency of the loudest signal.
Can be used to test your instruments, check your football whistle frequency, and
even tune your piano, guitar or other string instrument."
Features real-time smooth high framerate spectrum diagram! Frequencies between 20Hz and 20kHz!
Scale is logaritmic, what is best for human perception.
Software is using FFT internally.
This application is using advertisement, but it will not create icon or bookmarks on the desktop. We are also not using any push advertisement.
No Shoes Radio: Get live streaming access to No Shoes Radio, Kenny's internet (and now mobile) radio station! Fans can access Kenny’s musical world beyond his hits and “capture the vibe at the tailgate parties, the backstage hallways and the unguarded moments on his tour.” No Shoes Radio includes live performances, dressing room jams and tunes from Kenny’s iPod ranging from reggae, classic and contemporary rock and everything in between. With a set of headphones or a cheap audio cord, you’re ready to take No Shoes Radio with you around town, on your stereo, in your car, on your boat... Wherever you roam, your soundtrack on No Shoes Radio is coming too.
Touring: View tour dates, purchase tickets, invite friends to come along, use the iPhone GPS to get directions and even set your own countdown.
Merchandise: Browse official Kenny Chesney items, from t-shirts to stickers and guitar picks, and buy them with ease.
News: Get the latest info on all things Kenny, including exclusive updates and links to Kenny’s official Facebook, and MySpace.
Twitter: Track updates to Kenny's personal Twitter account, access the No Shoes Radio tweets, and read what other Kenny fans are tweeting about. The app comes complete with an integrated Twitter client, so you can tweet directly from the app with your personal account... without interrupting No Shoes Radio. Jump in and join in the conversation!
Media: See the latest photos and videos from Kenny and listen to your favorite Chesney hits. Check out the fan photos and your Kenny cover songs from YouTube. You can also purchase music and videos direct through the iTunes store.
There are many more features and surprises for you to discover in the Official Kenny Chesney app.
As a gift to the incredible fans who make the music possible, we invite you to share Kenny’s favorite music on No Shoes Radio, customize your background to make the app your own, and enjoy the many features and functions on one of the most innovative apps around... All for free.
Internet Connection Recommended:
This app is designed to be updated often. To make sure you have the most recent photos, videos, news, and more, close and open the app to refresh.
First, make sure you are connected to the internet
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The SunFest app for 2015 is here! Dive on in!
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Share your location with your friends! Sometimes its hard meeting up with everyone at a jam-packed music festival, especially in the bustle of the streets of Miami. With the Friend Finder feature, users can let their friends know exactly where they are on a map of Miami! Sharing doesn't stop there -- users can also let their friend's see their own personal schedule of events! Coordinating meet-ups and shows with other people has never been easier!
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With the Ultra Camera, take a picture of your favorite act or experience and share it with all your friends straight from the app! You can even share it to Instagram!
The Ultra app for 2014 is here! Enjoy!!!
View the complete schedule for festival events, create your own personalized schedule and follow participants and their special events. Use the app to navigate the Culinary Village, find events with tickets still available and discover helpful points of interest throughout the festival. Connect for the latest news on social media, pop-up alerts and all things Charleston Wine + Food.
Considered the most helpful new addition to the festival landscape in 2014 in our reader’s survey, savor the decade of festival fun with the most resourceful and up-to-date tool we have.
Download the BB&T Charleston Wine + Food app for your 2015 festival today!
Feeling lost? Take a gander at the Map section to view the locations of all the competitions, performances, and other events and vendors.
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The X Games Aspen app for 2015 is here! Dive on in!
This magical app will enhance your experience at Backwoods Music Festival.
Use it to:
• View the entire performance and artist schedule
• Listen to our free Backwoods Artist Radio
• Create a personalized schedule of acts you want to see at Backwoods
• Stay current with news and lineup announcements
• See everything people post with the official #BackwoodsMF hashtag
• View the map of the venue grounds
• Find food, activities, and retailers at Backwoods.
• Get answers to frequently asked questions
• Plan your Route 66 Road Trip
We can't wait to see you this year. We have a lot of special things in store, and more is added every day. Bring your good vibes and join us for our biggest and best year yet!
Good Music. Good People. Good Times.
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With the Mayhem Camera, take a picture of your favorite act or experience and share it with all your friends straight from the app! You can even share it to Instagram!
The Mayhem Festival Tour app for 2014 is here! Dive on in!
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