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| Pocket RTAUltra Spectrum Analyzer for iPhone |
Pocket RTA Ultra is a highly portable award winning real-time spectrum analyser
for the iPhone 4 & 4s.
Pocket RTA Ultra has many advanced
features which are normally only found in much more expensive sound analysis
software, providing fast and accurate spectrum analysis suitable for both
amateur hi-fi enthusiasts and professional A/V engineers. Uses include system
calibration, monitoring of noise levels and testing of audio
equipment.
PocketRTA samples sounds using either internal or external
microphones and then applies a Fourier Transform to the samples to obtain a
frequency spectrum. The result is an accurate representation of the sampled
sound broken down into its frequency components.
Various display modes
include, linear narrow band, logarithmic narrow band, Octave, 1/3 Octave, 1/6
Octave, RT60, SPL and Spectrogram displays with ANSI A and C weighting curves.
Use the iPhone's multi-touch interface to perform real-time magnification of
displays. The touch screen allows selection of the nearest FFT point giving a
display of it's frequency and decibel level. Up to 32 times oversampling allow
more stable readings for fluctuating or unstable input signals whilst our unique
noise cancellation system allows you to remove unwanted background
noise.
PocketRTA features the ability to calibrate the display using a
1/3 Octave display in order to compensate for imperfections in frequency
response of both internal and external microphones. The program automatically
detects and switches between both sets of calibration data.
Pocket RTA
has the ability to capture up to 3 input signals and overlay them as a reference
over live input. All display modes allow exporting of graphed data to the camera
roll in JPEG format. These images can then by synced, transferred via FTP or
emailed to your desktop PC for better analysis.
-Variable Sample Rate
from 8K to 48K.
-Definable FFT frame sizes up to 8K (16K on
4s).
-Standard ANSI/IEC A and C weighting curves.
-32bit floating point
sampling.
-Up to 32x oversampling.
-Smoothing (alternative to
averaging).
-Automatic noise cancellation.
-Automatic peak note /
frequency and octave display.
-Narrow band Linear and Logarithmic scalable
displays.
-Spectrogram display with Log and Linear Modes.
-1:1, 1:3 and
1:6 octave displays.
-SPL (Sound Pressure Level) display.
-RT60
Calculations on Impulse Recordings.
-Mixer Mode.
-LEQ Mode (Equivalent
Continuous Sound Level).
-10x zoom for accurate analysis of narrow band
data.
-Variable definable decibel scales.
-EPPO Mode (Equal Points Per
Octave).
-Signal Generator (log/linear sweep tones, sine, pink, white, saw,
square and impulse).
-Touch screen display of nearest point with frequency
and decibel readout.
-Independent gain controls for both internal and
external microphones.
-Pause facility freezes the live trace to aid analysis
of data.
-Independent 1/3 Octave Calibration of internal and external
microphones.
-Capture Buffers allow an additional 3 reference traces to be
displayed.
-Camera Roll capture facility.
-Save & Load Profiles (for
multiple calibration and graph settings).
-Export and Email CSV
data.
-FTP server to backup configuration files and exported data.
-Peak
trace facility for better reading of fluctuating frequencies.
-Capture peaks
over time facility.
-Full Screen Mode (removes toolbars etc.).
-Fast
display update even with large FFT sizes.
-Variable Sample Rate from 8K to
48K.
-Added 8K 16K FFT Sizes for more accurate measurement.
-Improved
32bit floating point sampling.
-Smoothing (alternative to
averaging).
-Improved SPL (Sound Pressure Level) display with LEQ
mode.
-RT60 Calculations on Impulse Recordings.
-Variable definable
decibel scales.
-Improved Signal Generator with log & linear sweep
tones.
-Save & Load Profiles (for multiple calibration and graph
settings).
Can be used in conjunction with
Tone Generator
Ultra
Pocket RTAUltra on App Store
4Pockets Audio Website
Pocket RTA HD samples sounds using either internal or external microphones and then applies a Fourier Transform to the samples to obtain a frequency spectrum. The result is an accurate representation of the sampled sound broken down into its frequency components.
