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Audio

8 Pro Acoustical Calculators and Reference Tools for Android and iOS

These are must-have apps for defining the acoustical physics of your space.

June 19, 2013 TD Staff Leave a Comment

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Cardioid

Sebastian Rivas

Free

Rating: 4+

Requirements: iPhone, iPod touch, and iPad. Requires iOS 4.3 or later. This app is optimized for iPhone 5

Acoustical prediction software for cardioid sub bass. You can change parameters like distance, delay, polarity and see the mapping and polar patterns.

Cardioid cont…

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DDT Feedback

Sebastian Rivas

Free

Rating: 4+

Requirements: iPhone, iPod touch, and iPad. Requires iOS 4.3 or later. This app is optimized for iPhone 5

Real feedback sounds on a trainer software for the audio engineer. Multi-sample technology. Pure tones and Pink noise options. It works like a game for you to increase your productivity.

SoundTrainer

Sebastian Rivas

Free

Rating: 4+

Requirements: iPhone, iPod touch, and iPad. Requires iOS 4.3 or later. This app is optimized for iPhone 5

This is a training software for the audio engineer. It will help you get better at identifying the frequency content in musical signals.

Acoustics Engineering Pack

Sparkle Solutions

$3.99

Rating: 5.0

Requirements: Android 1.5 and Up

Acoustics Engineering Pack contains 94 Calculators and References, that can quickly and easily calculate and helps you to refer different Acoustical Engineering parameters. Automatic & Accurate Calculations and Conversions with every Unit and Value Changes. A Complete Acoustical Engineering Dictionary.

Calculators and References:

  • Absorption Coefficients of Building Materials and Finishes
  • Acceleration Converter
  • Acoustic Flow Meter
  • Acoustic Impedance
  • Acoustic Intensity and Sound Intensity Level Relationship
  • Acoustic Power and Sound Power Level Relationship
  • Area Converter
  • Blade Pass Frequency
  • Bragg’s Law
  • Capacitive Reactance
  • Coincidence
  • Cutoff Frequency
  • Damping Factor
  • Data Transfer Converter
  • Day Night Sound Level
  • Density Converter
  • Diffraction Grating Equation
  • Doppler Effect - Approaching Receiver
  • Doppler Effect - Approaching Source
  • Doppler Effect - Receding Receiver
  • Doppler Effect - Receding Source
  • Doppler Effect - Wavelength Behind
  • Doppler Effect - Wavelength Front
  • Electrical Harmonics
  • Energy Converter
  • Force Converter
  • Frequency Converter
  • Frequency Limits (1/3-Octave bands)
  • Frequency Limits (Octave bands)
  • Fresnel Number
  • Inductive Reactance
  • Inverse Square Law
  • Length Converter
  • Level Damping
  • Mach Number
  • Magnetic Flux Converter
  • Magnetic Flux Level
  • Mass Converter
  • Mean Absorption Coefficient
  • Metric Weight Converter
  • Noise Criterion (Location)
  • Noise Criterion (Sound Pressure Levels)
  • Noise Exposure Level
  • Noise Exposure Level - Duration
  • Noise Generation - Ducts
  • Noise Pollution Level
  • Noise Rating Curves
  • Ohm’s Law of Acoustics (Acoustic Impedance)
  • Ohm’s Law of Acoustics (Particle Velocity)

  • Ohm’s Law of Acoustics (Sound Intensity)
  • Ohm’s Law of Acoustics (Sound Pressure)
  • Outdoor Ambient Sound Levels
  • Particle Velocity and Particle Velocity Level Relationship
  • Power Converter
  • Preferred Noise Criterion
  • Prefixes Converter
  • Pressure Converter
  • Quality Factor
  • Radar Range
  • Radiation Converter
  • Resonant Frequency
  • Reverberation Time
  • RMS Noise
  • Room Constant
  • Room Criteria
  • Sound Absorption Coefficient
  • Sound Absorption Coefficient (Common Materials)
  • Sound Attenuation
  • Sound Attenuation Level - Main Duct to Branches
  • Sound Converter
  • Sound Energy and Sound Energy Level Relationship
  • Sound Energy Density and Sound Density Level Relationship
  • Sound Intensity Level
  • Sound Power Emitted
  • Sound Power Level
  • Sound Pressure - Recommended Maximum Levels in Rooms
  • Sound Pressure (Receiver)
  • Sound Pressure and Sound Pressure Level Relationship
  • Sound Pressure Level
  • Sound Pressure Level (Linear Sound Source)
  • Sound Speed
  • Sound Transmission Loss - Building Elements
  • Sound Transmission through Duct Walls
  • Sound Wavelength
  • Speed of Sound (Common Liquids)
  • Speed of Sound (Common Solids)
  • Speed of Sound (Gases)
  • Temperature Converter
  • Time Converter
  • Velocity Converter
  • Voltage to Voltage Level Conversion
  • Volume Converter
  • Wave Frequency
  • Wave Velocity

Acoustics Engineering Pack cont…

Acoustics Engineering Pack cont…

Acoustics Engineering Pack cont…

Acoustics Engineering Pack cont…

Acoustics Engineering Calculator

V PUGAZHENTHI

$3.99

Rating: 4+

Requirements: iPhone, iPod touch, and iPad. Requires iOS 4.3 or later. This app is optimized for iPhone 5

A pack of 77 calculators and converters related to Acoustics Engineering with Formulas and Definitions.

Calculators and Converts

  • Acceleration Converter
  • Acoustic Flow Meter
  • Acoustic Impedance
  • Acoustic Intensity and Sound Intensity Level Relationship
  • Acoustic Power and Sound Power Level Relationship
  • Area Converter
  • Blade Pass Frequency
  • Bragg’s Law
  • Capacitive Reactance
  • Coincidence
  • Cutoff Frequency
  • Damping Factor
  • Data Transfer Converter
  • Day Night Sound Level
  • Density Converter
  • Diffraction Grating Equation
  • Doppler Effect - Approaching Receiver
  • Doppler Effect - Approaching Source
  • Doppler Effect - Receding Receiver
  • Doppler Effect - Receding Source
  • Doppler Effect - Wavelength Behind
  • Doppler Effect - Wavelength Front
  • Electrical Harmonics
  • Energy Converter
  • Force Converter
  • Frequency Converter
  • Fresnel Number
  • Inductive Reactance
  • Inverse Square Law
  • Length Converter
  • Level Damping
  • Mach Number
  • Magnetic Flux Converter
  • Magnetic Flux Level
  • Mass Converter
  • Mean Absorption Coefficient
  • Metric Weight Converter
  • Noise Exposure Level
  • Noise Generation - Ducts
  • Noise Pollution Level
  • Ohm’s Law of Acoustics (Acoustic Impedance)
  • Ohm’s Law of Acoustics (Particle Velocity)

  • Ohm’s Law of Acoustics (Sound Intensity)
  • Ohm’s Law of Acoustics (Sound Pressure)
  • Particle Velocity and Particle Velocity Level Relationship
  • Power Converter
  • Pressure Converter
  • Quality Factor
  • Radar Range
  • Radiation Converter
  • Resonant Frequency
  • Reverberation Time
  • RMS Noise
  • Room Constant
  • Sound Absorption Coefficient
  • Sound Attenuation
  • Sound Attenuation Level - Main Duct to Branches
  • Sound Converter
  • Sound Energy and Sound Energy Level Relationship
  • Sound Energy Density and Sound Density Level Relationship
  • Sound Intensity Level
  • Sound Power Emitted
  • Sound Power Level
  • Sound Pressure (Receiver)
  • Sound Pressure and Sound Pressure Level Relationship
  • Sound Pressure Level
  • Sound Pressure Level (Linear Sound Source)
  • Sound Speed
  • Sound Transmission through Duct Walls
  • Sound Wavelength
  • Temperature Converter
  • Time Converter
  • Velocity Converter
  • Voltage to Voltage Level Conversion
  • Volume Converter
  • Wave Frequency
  • Wave Velocity

Acoustics Engineering Calculator cont

Acoustics Engineering Calculator cont

RT

Gabriel Moreno Ibarra

Free

Rating: 5.0

Requirements: Android 2.2 and Up

RT is an app with which you can determine an average of the reverberation time (or in octave) in a simple and free.

Operation:

  • Start the application.
  • Press START.
  • Slap.
  • Press STOP.
  • Send to “Yes” if the measure was successful.

To achieve optimum results, it is highly recommended to try to locate the device away from reflective surfaces and slap stick farther from the critical radius, so that the sound reverberated outweighs the direct. The app has a failsafe for inadequate measurement times and will indicate when the measurement needs to be retaken.

RT cont…

toolBox for Acoustics

acoustassist ltd.

Free

Requirements:  Android 2.1 and Up

toolBox for acoustics is a suite of information, equations and calculators for all things acoustics-related, useful for consultants, engineers, researchers and students alike with an interest in sound, noise and vibration.

Features:

  • Selection of audio test signals, with the option to download signals for offline use
  • Unique decibel calculator
  • Room modes calculator
  • Octave/third-octave frequency bands calculator with A/B/C/D weightings
  • Noise rating (NR) level calculator
  • Reverberation time calculators (simple and advanced modes)

In addition, a number of acoustic equations are included, each with the unique provision to calculate any one of the equation terms. Physical units are always selectable where appropriate, for example speed may be calculated or input as m/s, km/h or mph.

Equations cover:

  • Speed of sound
  • Decibel definitions of sound power, intensity and pressure level
  • Audio delay
  • Sound propagation
  • Distance attenuation
  • Barrier attenuation

toolBox for Acoustics cont…

toolBox for Acoustics cont…

The physics of sound cover a large spectrum of variables that influence how and what we hear when listening in a specific space.

Understanding the specifics of audible sound is essential for not only mapping out a space, but knowing how a space will interact with any and all acoustical presences. Having access to a wide range of acoustical references, like delay calculators, reverberation mapping and the quintessential mathematical equations that prove the sound we hear, is a must when engineering a space to facilitate sound in the most efficient way possible.

Acoustical calculators and reference apps allow your mobile device to become a convenient utility for calculating the physics of your space’s acoustics.

Danley Audio has recently updated their suite of apps for acoustical design. The Danley Design Tools apps cover a variety of functions; from ear training to feedback mapping, their acoustical utility collection is intended for sound engineer training and on-site reference.

Danley’s collection stands as a comprehensive standard for the different types of influences that must be considered when acoustically engineering a space, proving that sound is heard as much as it is engineered by the physical space it is filling. What is most important about Danley’s utilities is that each app is wholly customizable.

Even though each app is designed for reference purposes, the calculations are based solely on the specific dimensions of each space being tested. The ability for these apps to adjust for each specific space means that these utilities not only function as valuable learning tools, but also real-time reference applications meant to be used by novices and experts alike.

Worthy acoustical calculation and reference apps should be noted for their variety in functionality as well as their specificity.

However, there are also toolboxes that are heavily loaded with just about every mathematical equation and reference needed to understand the physics of sound.

Sound engineering relies on more than just an adept knowledge of the physical hardware being used. For example, knowing why speaker levels are set the way that they are, or why a speaker is pointed in a certain direction, is paramount for not only understanding installed spaces, but preparing sound technicians for future installs and sound set-ups.

With this in mind, sound engineers are required to hear sound in a completely different way compared to the normal lay-listener, this sort of focus takes years of training and countless hours on the job site. In order to shorten the half-life of the uneducated ear, these acoustical calculation and reference apps have been designed to provide the most aid for some of the harder aspects of acoustical engineering.

This collection of acoustical engineering apps takes the concept of utility apps to a very focused level, proving that apps can be professional and usable.

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Tagged With: Acoustics, Apps, Higher Ed

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