Decibel X:dB Sound Level Meter Hack 9.6.2 + Redeem Codes
Frequency Spectrum Analyzer
Developer: SkyPaw Co. Ltd
Category: Utilities
Price: Free
Version: 9.6.2
ID: com.skypaw.decibel
Screenshots
Description
"Decibel X" is one of very few noise meter apps on the market that has highly reliable, pre-calibrated measurements and supports dBA, dBC. It turns your iOS device into a professional sound level meter, precisely measures the sound pressure level (SPL) all around you. This extremely useful and beautiful tool will not only be a great tool for many uses but also bring you a lot of fun. Have you wondered how quiet is your room or how loud is a rock concert or sport event? "Decibel X" will help you answer all of those.
WHAT MAKE IT GREAT AND STAND OUT FROM OTHER APPS:
- Trusted accuracy: the app is tested and pre calibrated for all Apple devices. The precision is matching with real SPL devices
- Apple Watch support: see noise level right from your wrist
- Health App integration: export noise levels directly into Health app
- Frequency weighting filters: ITU-R 468, A, B, C, Z
- Powerful, smart history data management:
+ Recording data can be saved into a list of history records for future access and analysis
+ Each record can be exported as hi-res PNG graph or CSV text via sharing services
+ iCloud support which synchronize all history records across your Apple devices
+ Fullscreen mode to give overview the whole history of an record
- Dosimeter with NIOSH, OSHA standards
- Powerful calibration: Linear, Octave 1/1, 1/3, Load/save profile
- FFT and BAR graphs to display real time FFT. Those are very useful for frequency analysis and musical tests. Real time predominant frequency is also displayed.
- InstaDecibel to capture your dB report overlaid on photos and easily shared via popular social networks (Facebook, Instagram, Messages, etc.).
- Support Live Activity, Dynamic Island
- Support both Portrait and Landscape layouts
- Beautiful, intuitive and carefully crafted UI design. Themes: LIGHT, DARK and CLASSIC
OTHER GREAT FEATURES:
- Standard time weightings (Response Time): SLOW (500 milliseconds), FAST (200 milliseconds) AND IMPULSE (50 milliseconds)
- MIC Gain Offset from -50 dB to 50 dB
- Standard measurement range from 30 dBA up to 130 dBA
- HISTO graph for plotted history of the recorded values
- WAVE graph with 2 display modes: Rolling & Buffer
- SPECTROGRAPH
- Real time scale level chart
- Display Current, Average/Leq, and Max values with both nice and clear digital and analog layouts
- Quick reference text to help you compare with real-life examples
NOTES:
- Please do not expect a quiet room reading will be 0 dBA. The range 30-130 dBA is the standard usable range and an average quiet room will be about 30 dBA.
- Although all devices are pre-calibrated, custom calibration is suggested for serious purposes requiring higher precision and accuracy. You will need a real external device or calibrated sound meter as a reference, then adjust the trimming calibration until the reading matches with the reference.
* Privacy Policy: http://www.skypaw.com/decibelx/privacy_policy.html
* EULA: http://www.skypaw.com/decibelx/terms.html
WHAT MAKE IT GREAT AND STAND OUT FROM OTHER APPS:
- Trusted accuracy: the app is tested and pre calibrated for all Apple devices. The precision is matching with real SPL devices
- Apple Watch support: see noise level right from your wrist
- Health App integration: export noise levels directly into Health app
- Frequency weighting filters: ITU-R 468, A, B, C, Z
- Powerful, smart history data management:
+ Recording data can be saved into a list of history records for future access and analysis
+ Each record can be exported as hi-res PNG graph or CSV text via sharing services
+ iCloud support which synchronize all history records across your Apple devices
+ Fullscreen mode to give overview the whole history of an record
- Dosimeter with NIOSH, OSHA standards
- Powerful calibration: Linear, Octave 1/1, 1/3, Load/save profile
- FFT and BAR graphs to display real time FFT. Those are very useful for frequency analysis and musical tests. Real time predominant frequency is also displayed.
- InstaDecibel to capture your dB report overlaid on photos and easily shared via popular social networks (Facebook, Instagram, Messages, etc.).
- Support Live Activity, Dynamic Island
- Support both Portrait and Landscape layouts
- Beautiful, intuitive and carefully crafted UI design. Themes: LIGHT, DARK and CLASSIC
OTHER GREAT FEATURES:
- Standard time weightings (Response Time): SLOW (500 milliseconds), FAST (200 milliseconds) AND IMPULSE (50 milliseconds)
- MIC Gain Offset from -50 dB to 50 dB
- Standard measurement range from 30 dBA up to 130 dBA
- HISTO graph for plotted history of the recorded values
- WAVE graph with 2 display modes: Rolling & Buffer
- SPECTROGRAPH
- Real time scale level chart
- Display Current, Average/Leq, and Max values with both nice and clear digital and analog layouts
- Quick reference text to help you compare with real-life examples
NOTES:
- Please do not expect a quiet room reading will be 0 dBA. The range 30-130 dBA is the standard usable range and an average quiet room will be about 30 dBA.
- Although all devices are pre-calibrated, custom calibration is suggested for serious purposes requiring higher precision and accuracy. You will need a real external device or calibrated sound meter as a reference, then adjust the trimming calibration until the reading matches with the reference.
* Privacy Policy: http://www.skypaw.com/decibelx/privacy_policy.html
* EULA: http://www.skypaw.com/decibelx/terms.html
Version history
9.6.2
2023-05-10
Thanks for using Decibel X! Here's what's new for the version 9.6.2:
∿ Fix an issue where saved logs synced from iCloud might not show histograph
∿ Change edit mode of saved data for better manipulation
∿ Vastly improve many UI elements
∿ Upgrade library components
∿ Several other minor improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external or bluetooth mics
∿ Hearing test
∿ Fix an issue where saved logs synced from iCloud might not show histograph
∿ Change edit mode of saved data for better manipulation
∿ Vastly improve many UI elements
∿ Upgrade library components
∿ Several other minor improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external or bluetooth mics
∿ Hearing test
9.6.1
2023-02-11
Thanks for using Decibel X! Here's what's new for the version 9.6.1:
∿ Fix an issue where legacy users cannot restore their purchases to access locked features (i.e ad removal, frequency weightings, data export)
∿ Fix an issue where crash may happen when calibrating
∿ Fix an issue where crash may happen when access to spectrogram
∿ Upgrade library components
∿ Several other minor improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external or bluetooth mics
∿ Hearing test
∿ Fix an issue where legacy users cannot restore their purchases to access locked features (i.e ad removal, frequency weightings, data export)
∿ Fix an issue where crash may happen when calibrating
∿ Fix an issue where crash may happen when access to spectrogram
∿ Upgrade library components
∿ Several other minor improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external or bluetooth mics
∿ Hearing test
9.6.0
2023-01-16
Thanks for using Decibel X! Here's what's new for the version 9.6.0:
∿ Add a whole new powerful calibration screen which supports: Linear, per Octave calibrating and load/save profile.
∿ Support Live Activity
∿ Support Dynamic Island
∿ Support Lock Screen widget
∿ Fix a camera issue that limits recording duration for subscribers
∿ Fix an issue where need to double swipe to exit the app
∿ Vastly improve UI and performance
∿ Upgrade library components
∿ Various other minor improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external or bluetooth mics
∿ Hearing test
∿ Add a whole new powerful calibration screen which supports: Linear, per Octave calibrating and load/save profile.
∿ Support Live Activity
∿ Support Dynamic Island
∿ Support Lock Screen widget
∿ Fix a camera issue that limits recording duration for subscribers
∿ Fix an issue where need to double swipe to exit the app
∿ Vastly improve UI and performance
∿ Upgrade library components
∿ Various other minor improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external or bluetooth mics
∿ Hearing test
9.5.0
2022-06-03
Thanks for using Decibel X! Here's what's new for the version 9.5.0:
∿ Tap on labels to change between AVG - MIN, PEAK - MAX
∿ Spectrum graph now shows peak value
∿ Tap on Instantaneous label to show its fullsreen mode
∿ Upgrade components
∿ Various improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external or bluetooth mics
∿ Hearing test
∿ Tap on labels to change between AVG - MIN, PEAK - MAX
∿ Spectrum graph now shows peak value
∿ Tap on Instantaneous label to show its fullsreen mode
∿ Upgrade components
∿ Various improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external or bluetooth mics
∿ Hearing test
9.4.0
2021-11-15
Thanks for using Decibel X! Here's what's new for the version 9.4.0:
∿ Now support recording in background
∿ Histograph supports Line and Dot drawing modes
∿ Improve Spectrogram rendering
∿ Fix an issue where audio file might not be saved when auto saving is ON
∿ Upgrade components
∿ Various improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external or bluetooth mics
∿ Hearing test
∿ Now support recording in background
∿ Histograph supports Line and Dot drawing modes
∿ Improve Spectrogram rendering
∿ Fix an issue where audio file might not be saved when auto saving is ON
∿ Upgrade components
∿ Various improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external or bluetooth mics
∿ Hearing test
9.3.3
2021-06-29
Thanks for using Decibel X! Here's what's new for the version 9.3.3:
∿ Fix an issue where summary report is not displayed
∿ Upgrade components
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Hearing test
∿ Fix an issue where summary report is not displayed
∿ Upgrade components
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Hearing test
9.3.2
2021-06-16
Thanks for using Decibel X! Here's what's new for the version 9.3.2:
∿ Fix an issue where app may crash when access calibration screen
∿ Upgrade components
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Hearing test
∿ Fix an issue where app may crash when access calibration screen
∿ Upgrade components
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Hearing test
9.3.0
2021-05-13
Thanks for using Decibel X! Here's what's new for the version 9.3.0:
∿ We listen to your feedback and completely remove all ads without premium upgrade
∿ Support logarithm scale for spectrogram
∿ Add "Impulse (50ms)" response time
∿ Improve Calibration UI for better fine tunes flow
∿ Enable iCloud Sync will now include audio data by default
∿ Drastically reduce app size
∿ Improve histo graph UI for better visualization
∿ Upgrade components
∿ Various improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Hearing test
∿ We listen to your feedback and completely remove all ads without premium upgrade
∿ Support logarithm scale for spectrogram
∿ Add "Impulse (50ms)" response time
∿ Improve Calibration UI for better fine tunes flow
∿ Enable iCloud Sync will now include audio data by default
∿ Drastically reduce app size
∿ Improve histo graph UI for better visualization
∿ Upgrade components
∿ Various improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Hearing test
9.2.1
2020-12-17
Thanks for using Decibel X! Here's what's new for the version 9.2.1:
∿ Upgrade components
∿ Various minor improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Support exponential scale for spectrograph
∿ Upgrade components
∿ Various minor improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Support exponential scale for spectrograph
9.2.0
2020-12-07
Thanks for using Decibel X! Here's what's new for the version 9.2.0:
∿ Add 'Data Logs' widget
∿ Fix widget display issue
∿ Components upgrade
∿ Various minor improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Support exponential scale for spectrograph
∿ Add 'Data Logs' widget
∿ Fix widget display issue
∿ Components upgrade
∿ Various minor improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Support exponential scale for spectrograph
9.1.0
2020-11-03
Thanks for using Decibel X! Here's what's new for the version 9.1.0:
∿ Now support Home Widget on iOS 14. More widgets are coming in next updates
∿ Add 'Peak Hold' option
∿ Tap on spectrum graph for corresponding frequency, current and peak values
∿ Components upgrade
∿ Various minor improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Support exponential scale for spectrograph
∿ Now support Home Widget on iOS 14. More widgets are coming in next updates
∿ Add 'Peak Hold' option
∿ Tap on spectrum graph for corresponding frequency, current and peak values
∿ Components upgrade
∿ Various minor improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Support exponential scale for spectrograph
9.0.0
2020-09-18
Thanks for using Decibel X! Here's what's new for the version 9.0.0:
∿ Support iOS 14
∿ App Clip: instantly try the app without downloading. Just go into our website or scan our QR code with your iPhone's camera
∿ Components upgrade
∿ Various minor improvements & fixes
What to expect in upcoming versions:
∿ Home Widget
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Support exponential scale for spectrograph
∿ Support iOS 14
∿ App Clip: instantly try the app without downloading. Just go into our website or scan our QR code with your iPhone's camera
∿ Components upgrade
∿ Various minor improvements & fixes
What to expect in upcoming versions:
∿ Home Widget
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Support exponential scale for spectrograph
8.2.8
2020-09-12
Thanks for using Decibel X! Here's what's new for the version 8.2.8:
∿ Make subscription screen more intuitive to users
∿ Make buttons of navigating graphs clearer
∿ Components upgrade
∿ Various minor improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Support exponential scale for spectrograph
∿ Make subscription screen more intuitive to users
∿ Make buttons of navigating graphs clearer
∿ Components upgrade
∿ Various minor improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Support exponential scale for spectrograph
8.2.7
2020-08-20
Thanks for using Decibel X! Here's what's new for the version 8.2.7:
∿ Fix HISTO graph not displaying issue
∿ Components upgrade
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Fix HISTO graph not displaying issue
∿ Components upgrade
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
8.2.6
2020-08-18
Thanks for using Decibel X! Here's what's new for the version 8.2.6:
∿ Support upside down rotation for notched devices
∿ Fix ad display issue
∿ Components upgrade
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Support upside down rotation for notched devices
∿ Fix ad display issue
∿ Components upgrade
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
8.2.5
2020-08-15
Thanks for using Decibel X! Here's what's new for the version 8.2.5:
∿ Improve HISTO graph for better visualization & performance
∿ Fix an UI issue when subscription period is ended
∿ Components upgrade
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Improve HISTO graph for better visualization & performance
∿ Fix an UI issue when subscription period is ended
∿ Components upgrade
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
8.2.4
2020-07-06
Thanks for using Decibel X! Here's what's new for the version 8.2.4:
∿ Improve UI with round corners
∿ Add localizations for some texts
∿ Components upgrade
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Improve UI with round corners
∿ Add localizations for some texts
∿ Components upgrade
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
8.2.3
2020-07-01
Thanks for using Decibel X! Here's what's new for the version 8.2.3:
∿ Fix spectrum and bar graphs issue where axis labels are overlapped
∿ Fix summary report issue where frequency weighting is incorrect
∿ Fix ad display issue
∿ Components upgrade
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Fix spectrum and bar graphs issue where axis labels are overlapped
∿ Fix summary report issue where frequency weighting is incorrect
∿ Fix ad display issue
∿ Components upgrade
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
8.2.2
2020-06-27
Thanks for using Decibel X! Here's what's new for the version 8.2.2:
∿ Fix an issue where fullscreen layout is incorrectly offset
∿ Introduce discount price for re-subscribers
∿ Prevent accidently quitting the app when swiping up at the bottom
∿ Change frequency weighting slider into button style for better UX
∿ Components upgrade
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Fix an issue where fullscreen layout is incorrectly offset
∿ Introduce discount price for re-subscribers
∿ Prevent accidently quitting the app when swiping up at the bottom
∿ Change frequency weighting slider into button style for better UX
∿ Components upgrade
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
8.2.1
2020-05-21
Thanks for using Decibel X! Here's what's new for the version 8.2.1:
∿ Fix a critical issue where some saved data cannot playback
∿ Fix an issue where some upload data onto iCloud might have 0 bytes
∿ Fix an issue where a data item being deleted will now stop if playing back audio
∿ Components upgrade
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Fix a critical issue where some saved data cannot playback
∿ Fix an issue where some upload data onto iCloud might have 0 bytes
∿ Fix an issue where a data item being deleted will now stop if playing back audio
∿ Components upgrade
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
8.2.0
2020-04-24
Thanks for using Decibel X! Here's what's new for the version 8.2.0:
∿ Add fullscreen spectrum analysis, by just rotating your device into landscape.
∿ Powerful spectrum analyzer with support to customize: FFT size, windowing, octave.
∿ Support better flow for saving and exporting recorded video
∿ App name is localized on home screen
∿ Fix an issue where video recording is not reset
∿ Fix a random crash when showing peaks
∿ Fix an issue where premium users still seeing watermark when recording videos
∿ Components upgrade
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
∿ Add fullscreen spectrum analysis, by just rotating your device into landscape.
∿ Powerful spectrum analyzer with support to customize: FFT size, windowing, octave.
∿ Support better flow for saving and exporting recorded video
∿ App name is localized on home screen
∿ Fix an issue where video recording is not reset
∿ Fix a random crash when showing peaks
∿ Fix an issue where premium users still seeing watermark when recording videos
∿ Components upgrade
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ Support external mics
8.1.3
2019-12-13
Thanks for using Decibel X! Here's what's new for the version 8.1.3:
∿ Add home screen quick actions menu, including: Camera, Dosimeter, Sound Meter and Data Management
∿ Fix status bar display issue on iOS 13
∿ Fix an issue where after displaying an ad, the meter is paused
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ More powerful spectrum analyzer with support to customize: FFT size, windowing, octave.
∿ Background recording
∿ Support external mics
∿ Add home screen quick actions menu, including: Camera, Dosimeter, Sound Meter and Data Management
∿ Fix status bar display issue on iOS 13
∿ Fix an issue where after displaying an ad, the meter is paused
∿ Several improvements & fixes
What to expect in upcoming versions:
∿ Set notification alarm when exceeded a preset threshold
∿ More powerful spectrum analyzer with support to customize: FFT size, windowing, octave.
∿ Background recording
∿ Support external mics
8.1.2
2019-12-11
Thanks for using Decibel X! Here's what's new for the version 8.1.2:
∿ Integrate with Apple Health (require iOS 13 and above). Now when enabled, the app will automatically send measurement data into Health app to help you keep you in sync with Apple Health
∿ Fix random crashes when exporting PDF data
∿ Fix an issue which sometimes not cannot save WAVE data
∿ Fix an issue which stop updating values when opening reference table
∿ Several improvements & fixes
What to expect in the next version:
∿ Set notification alarm when exceeded a preset threshold
∿ More powerful spectrum analyzer with support to customize: FFT size, windowing, octave.
∿ Background recording
∿ Support external mics
∿ Integrate with Apple Health (require iOS 13 and above). Now when enabled, the app will automatically send measurement data into Health app to help you keep you in sync with Apple Health
∿ Fix random crashes when exporting PDF data
∿ Fix an issue which sometimes not cannot save WAVE data
∿ Fix an issue which stop updating values when opening reference table
∿ Several improvements & fixes
What to expect in the next version:
∿ Set notification alarm when exceeded a preset threshold
∿ More powerful spectrum analyzer with support to customize: FFT size, windowing, octave.
∿ Background recording
∿ Support external mics
8.1.1
2019-12-01
Thanks for using Decibel X! Here's what's new for the version 8.1.1:
∿ Add WAVE recording and playback along with saved data
∿ Vastly improve data management and add new data exports: CSV, HTML, PDF and WAVE
∿ Add Map view to visually locate saved data
∿ Vastly improve Dosimeter interface
∿ Metadata changes
∿ Various other improvements & fixes
What to expect in the next version:
∿ Integrate with Health app
∿ Set notification and alarm when exceeded a preset threshold
∿ More powerful spectrum analyzer with support to customize: FFT size, windowing, octave
∿ Add WAVE recording and playback along with saved data
∿ Vastly improve data management and add new data exports: CSV, HTML, PDF and WAVE
∿ Add Map view to visually locate saved data
∿ Vastly improve Dosimeter interface
∿ Metadata changes
∿ Various other improvements & fixes
What to expect in the next version:
∿ Integrate with Health app
∿ Set notification and alarm when exceeded a preset threshold
∿ More powerful spectrum analyzer with support to customize: FFT size, windowing, octave
8.1.0
2019-11-27
Thanks for using Decibel X! Here's what's new for the version 8.1.0:
∿ Add WAVE recording and playback along with saved data
∿ Vastly improve data management and add new data exports: CSV, HTML, PDF and WAVE
∿ Add Map view to visually locate saved data
∿ Vastly improve Dosimeter interface
∿ Component upgrades
∿ Various other improvements & fixes
What to expect in the next version:
∿ Set notification and alarm when exceeded a preset threshold
∿ More powerful spectrum analyzer with support to customize: FFT size, windowing, octave
∿ Add WAVE recording and playback along with saved data
∿ Vastly improve data management and add new data exports: CSV, HTML, PDF and WAVE
∿ Add Map view to visually locate saved data
∿ Vastly improve Dosimeter interface
∿ Component upgrades
∿ Various other improvements & fixes
What to expect in the next version:
∿ Set notification and alarm when exceeded a preset threshold
∿ More powerful spectrum analyzer with support to customize: FFT size, windowing, octave
Cheat Codes for In-App Purchases
| Item | Price | iPhone/iPad | Android |
|---|---|---|---|
| Monthly Membership (Get everything Decibel X has to offer) |
Free |
JC577164966✱✱✱✱✱ | A0A8754✱✱✱✱✱ |
| Weekly Membership (Get everything Decibel X has to offer) |
Free |
JC510816107✱✱✱✱✱ | 2560315✱✱✱✱✱ |
| Annual Membership (Get everything Decibel X has to offer) |
Free |
JC357574153✱✱✱✱✱ | 72B7EBF✱✱✱✱✱ |
| ITU-R 468, A, B, C Weightings (Unlock ITU-R 468, A, B, C Weightings) |
Free |
JC021601111✱✱✱✱✱ | DC78AB0✱✱✱✱✱ |
| Data Export (No limits when saving data) |
Free |
JC412959965✱✱✱✱✱ | 242F893✱✱✱✱✱ |
Ways to hack Decibel X:dB Sound Level Meter
- Redeem codes (Get the Redeem codes)
Download hacked APK
Download Decibel X:dB Sound Level Meter MOD APK
Request a Hack
Ratings
4.6 out of 5
114.1K Ratings
Reviews
9235S,
Great app!!
The free version is likely the best app of its kind, and highly recommended. The only strike against it is that the premium version is subscription based, and a fairly expensive one at $4.99 per month. I suspect that for most casual users, this is far too expensive…I certainly wouldn’t pay that. I can understand subscriptions for something like a newspaper or periodical magazine, where content is changing, but not for something that provides an essentially fixed functionality. This kind of app is particularly suitable to one time purchase of premium functionality.
SUGGESTION TO DEVELOPERS
Create a reasonably priced onetime purchase option If you keep a subscription, reduce the cost considerably. You may be surprised how many more paid users you’d have, if you do this.
SUGGESTION TO DEVELOPERS
Create a reasonably priced onetime purchase option If you keep a subscription, reduce the cost considerably. You may be surprised how many more paid users you’d have, if you do this.
4ndr0,
My usage of the app
Provided the app is calibrated properly when you set it up, it’s pretty accurate in isolated areas like calibrating a turn table or checking a receiver for accuracy. However, a bunch of unrelated sounds events taking place at the same time throws the app off. Instead of giving you an average for the space you’re in, it just fluctuates based on individual sounds it picks up. For example, I value my hearing because I’m a musician. When I go to loud concerts I wear earplugs.
At a recent Korn concert I wanted to decide if I was far enough away that I wouldn’t damage my hearing or leave the venue with ringing ears. I tried the app, but I got numbers from people talking behind me, the band, clapping, so I wasn’t able to get an accurate reading. The meter jumped from 50db to 80db at a Korn concert where I was about 100 feet from the stage. While it wasn’t hitting over 100db or heaven forbid 120db, I chose to wear earplugs and I was the only one in my group to not leave with ringing ears.
In summary, the app is really great for isolated spaces, but it has trouble handling multiple sounds from multiple sources and giving you a stable number to work with. I don’t recommend it for harm reduction at a concert event, but I do recommend it for checking your speaker levels, calibrating your receiver, or anything audio related that is in a quiet testing area.
At a recent Korn concert I wanted to decide if I was far enough away that I wouldn’t damage my hearing or leave the venue with ringing ears. I tried the app, but I got numbers from people talking behind me, the band, clapping, so I wasn’t able to get an accurate reading. The meter jumped from 50db to 80db at a Korn concert where I was about 100 feet from the stage. While it wasn’t hitting over 100db or heaven forbid 120db, I chose to wear earplugs and I was the only one in my group to not leave with ringing ears.
In summary, the app is really great for isolated spaces, but it has trouble handling multiple sounds from multiple sources and giving you a stable number to work with. I don’t recommend it for harm reduction at a concert event, but I do recommend it for checking your speaker levels, calibrating your receiver, or anything audio related that is in a quiet testing area.
treynolds57,
Very Good, With One Quibble...
I’ve used a couple sound meter apps over the last few years along with a commercial quality sound level meter. I would put this up there with the best of what I’ve used. This review is for the purchased, “pro” version of the software. That I can pay $4.99 and use the processing capabilities of my iPhone in leu of spending $150+ on a professional, stand-alone meter blows my mind.
The level of detail shown in the various portions of the screen offer a broad range of information to the user. You get both numerical and graph output as well as dial analog output of minimum and maximum readings, duration, etc.
One quibble is that when I pause the meter and reset it, it asks if I really want to, which is okay, but immediately restarts the sound reading, even if I don’t want it to. Also, I’d like for a reset to take the meter back to “0”. It restarts at the prior average. I would like to see these twin issues corrected, and I’d then give the app 5 stars.
The level of detail shown in the various portions of the screen offer a broad range of information to the user. You get both numerical and graph output as well as dial analog output of minimum and maximum readings, duration, etc.
One quibble is that when I pause the meter and reset it, it asks if I really want to, which is okay, but immediately restarts the sound reading, even if I don’t want it to. Also, I’d like for a reset to take the meter back to “0”. It restarts at the prior average. I would like to see these twin issues corrected, and I’d then give the app 5 stars.
0 Db Vu,
Pleasantly surprised
I have a hand held sound pressure level (spl) meter, which I pull batteries out of between each use as it could be months in between uses. I’ve shared with flight attendants, construction workers, etc when the issue of noise in work environment came up. They were quite surprised something so capable of providing real time information was available.
One suggestion I have is to identify what weighting scales, A, B and C are each utilized. Perhaps provide explanation of all and access to one within basic service. Want option to use/change among others and that might be offered through a higher tier (chargeable) offering. Might be interesting to know the frequency range (cycles) as well.
One suggestion I have is to identify what weighting scales, A, B and C are each utilized. Perhaps provide explanation of all and access to one within basic service. Want option to use/change among others and that might be offered through a higher tier (chargeable) offering. Might be interesting to know the frequency range (cycles) as well.
AcousticsProf,
Misleading app name, free version measures dBZ only
The app name is dB, dBA Noise Meter but what the developer doesn't tell us is that the app only reads Z-weighted decibels (dBZ) and not A-weighted decibels (dBA) in the free version. All the guidelines and standards say to measure noise levels in dB(A) as A-weighted decibels correspond to human hearing. So it's really misleading to the public who don't know any better.
dB(Z) levels are typically 10 decibels or more higher than dB(A) so people are always getting the wrong readings, unless they purchase the A-weighted portion. No explanation is provided, it's truly a disservice to people who think they're getting a good reading of their noise environment. Remember, a 3 dB increase in level means double the energy that reaches the ear, so 10 dB at the ear is a huge difference.
Developer should make this information available to the public. They benefit from their top ranking on the app store but forget they are spreading misinformation by not explaining to the public the difference between dBZ and dBA. I will gladly pay $10 for an app that provides readout in A-weighted decibels.
dB(Z) levels are typically 10 decibels or more higher than dB(A) so people are always getting the wrong readings, unless they purchase the A-weighted portion. No explanation is provided, it's truly a disservice to people who think they're getting a good reading of their noise environment. Remember, a 3 dB increase in level means double the energy that reaches the ear, so 10 dB at the ear is a huge difference.
Developer should make this information available to the public. They benefit from their top ranking on the app store but forget they are spreading misinformation by not explaining to the public the difference between dBZ and dBA. I will gladly pay $10 for an app that provides readout in A-weighted decibels.
MSLeach,
Really Nice; How About This.
This is a great tool for audio enthusiast and semi pro apps.. very useful. How about this developer... what if you had a filter for the audio enthusiast that instead of showing air plane, riveter, streets noise, etc, it showed whispering, quiet conversation, normal conversation, public speaking, quiet church music, typical church music, loud church music, Jazz, Orchestra, Country Music Concert, Rap Music, Rock Concert. Each of these have associated typical levels such as...
60~67 Quiet Conversation
67~70 Normal Conversation
70~72 Public Speaking
82~92 Quiet Church Music
92~95 Typical Church Music
95~102 Loud Church Music
115~125 Rock Concert
Etc... you get the idea
These are all subject to I individual styles and preferences but the ideas is to get close, some type of base line for people who really have no idea what they’re doing but they knobs anyway (and you know who you are). This is very common in church music and small clubs where speakers mics are either so soft people lose interest or so loud it’s annoying. Or when the band is so soft it ruins the mood or so loud it’s dangerous to your ears. Many churches have no idea what is appropriate sound levels or what is borderline dangerous. I think this might be very helpful.
60~67 Quiet Conversation
67~70 Normal Conversation
70~72 Public Speaking
82~92 Quiet Church Music
92~95 Typical Church Music
95~102 Loud Church Music
115~125 Rock Concert
Etc... you get the idea
These are all subject to I individual styles and preferences but the ideas is to get close, some type of base line for people who really have no idea what they’re doing but they knobs anyway (and you know who you are). This is very common in church music and small clubs where speakers mics are either so soft people lose interest or so loud it’s annoying. Or when the band is so soft it ruins the mood or so loud it’s dangerous to your ears. Many churches have no idea what is appropriate sound levels or what is borderline dangerous. I think this might be very helpful.
Woofersub,
Used More Often Than I Epected
Developer just one request! Can you extend the frequency analyzer down to 30 or maybe even 20hz? I know that may mess up the scaling but maybe even just as an “infrasound” or “low frequency” option.
This app is great. I haven’t had a chance to compare it to a professional meter yet but in my experience it’s been a consistent and reliable tool that I’ve found myself reaching for more and more. For example did you know that enough time on the Tube could be causing you hearing damage? Or if you’re ever at a gig or bar do you wonder just how much sound you’re exposed to?
This app is great. I haven’t had a chance to compare it to a professional meter yet but in my experience it’s been a consistent and reliable tool that I’ve found myself reaching for more and more. For example did you know that enough time on the Tube could be causing you hearing damage? Or if you’re ever at a gig or bar do you wonder just how much sound you’re exposed to?
LRS71,
Amp saver
I was never impressed with my Denon 5.1 sound. I ran the auto set up multiple times with the small microphone in different viewing areas.
After reading an article, I used this app, along with physical distances of each speaker to the viewer. Wow, day and night. Much better surround sound. My understanding is to bring all speakers to an equal level by adjusting the individual dbl of each speaker on the amp, using this app to measure the output. I had to lower the front to match the rear, however you can increase the volume once you are done balancing your system.
After reading an article, I used this app, along with physical distances of each speaker to the viewer. Wow, day and night. Much better surround sound. My understanding is to bring all speakers to an equal level by adjusting the individual dbl of each speaker on the amp, using this app to measure the output. I had to lower the front to match the rear, however you can increase the volume once you are done balancing your system.
RealAdvisor,
My mission and you might want to follow
Years ago I lost my high tones from being in the music business, competitive shooting and hunting without ear protection, whch at the time was something not known to me.
My daughter and wife finally got exasperated with my asking “Huh, what did you say?”
So they had me go to an audiologist who determined I did have significant hearing loss of the high tones, literally crashing off the chart. Having compensated for 19 years, it was time for hearing aids. For $6,000, great improvement shown. I’m due for new aids, another $6K.
So, for the past 10 years I have spoken with some 50-60 young folks who blast music in their vehicles. I put the DecibleX app on my iPhone and demonstrate that they are ranging from the 90s to over 120 decibels. They were unaware of the damage they were causing to themselves and in some instances their children.
Everyone has been nice and thankful that I’ve brought this to their attention and saved them their hearing and some $$$.
Let’s pass it on!!!
My daughter and wife finally got exasperated with my asking “Huh, what did you say?”
So they had me go to an audiologist who determined I did have significant hearing loss of the high tones, literally crashing off the chart. Having compensated for 19 years, it was time for hearing aids. For $6,000, great improvement shown. I’m due for new aids, another $6K.
So, for the past 10 years I have spoken with some 50-60 young folks who blast music in their vehicles. I put the DecibleX app on my iPhone and demonstrate that they are ranging from the 90s to over 120 decibels. They were unaware of the damage they were causing to themselves and in some instances their children.
Everyone has been nice and thankful that I’ve brought this to their attention and saved them their hearing and some $$$.
Let’s pass it on!!!
ีกรกาย,
Funny how the phone distorts audio when recorded l
Today, I measured the sound of my school fire alarm, and it was really funny. I put my phone’s microphone directly next to the microphone, and it recorded a whopping 129 dB! After doing that I saved it as data, and when I listened to it, the output was really loud! Instead of making it sound like a fire alarm, it sounded like static! Decibel X is not only so useful, but it’s also funny! You should use this app to not only measure sound, but make and record funny sounds with this! I would really appreciate to use this for a long time!
