Sound Level Analyzer

"Sound Level Analyzer" is sound level measurements and signal analysis tools for the iPhone.

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At the regular price $ 4.99, Special Price $ 2.99 - offered at 40% discount!

It can be displayed a signal analysis at the same time as the sound level measurement, and is available in a variety of applications such as the neighboring environmental noise measuremet and sound check of Live events.

"Sound Level Analyzer" has our advanced DSP-based algorithms to process acoustic frequency weighting filter and to measure realtime sound levels. The ANSI acoustic filters are A- and C-weighting. A-weighting is provided a roll off of low frequencies and high frequencies fairly steeply for human ears. C-weighting is provided a roll off of low and high frequencies slightly for music. The response time of all measurements can be also selected from ANSI Fast or Slow parameter.

"Sound Level Analyzer" also has three modes of signal analysis function, which are Time-domain Graph, 1/3 Octave band Frequency Analyzer, and FFT Analyzer.
Time-domain Graph is a sound level time chart and works by plotting the measured sound level for the last 20 seconds, applying a weighting filter.
Frequency Analyzer is based on our Realtime Audio Analyzer app "fo-Kannon", and is provided 1/3 Octave-band frequency spectrum analysis of input signals, applying a weighting filter.
FFT Analyzer is also provided the Fast Fourier Transform (FFT) Analysis of input signals, applying a weighting filter.

"Sound Level Analyzer" comes pre-calibrated for the typical iPhone built-in mic, but you can adjust the calibration if you have a calibrated standard sound level meter.

*** SPECIAL SALE ***
To celebrate the release of our latest New App, we're holding a special price offer at a discount up to 60% off on iPhone Apps,"fo-Vocalise - Diagnostic Vocal Pitch Visualizer", "Audio Tone Generator", "Tone Toy - Toy Sonud app for little Kids", and iPad apps, "fo-Kannon - Spectrum Audio Analyzer", "fo-Onmon - Spectrogram Audio Analyzer", " Audio Tone Generator for iPad".

TOON,LLC is a company that seeks the comfort of sound environment based on our acoustic proprietary technology, and we will provide tools for audio professional, sound technology, home theater installer, and anyone who loves audio.

Features:
- Sound Level measurement:
Leq(equivalent continuous sound level),
Lmin(Minimum sound level of Leq),
Lmax(Maximum sound level of Leq)
- Display level dynamic range: 0 - 130dB
- Supports frequency weighting filter: A, C, and Z(without filter).
- Supports Time weighting: 125ms (Fast), 1sec (Slow)
- Frequency range: 20Hz - 20kHz
- Calibration function: offset value from -20.0dB to 20.0dB
- Display resolution: 0.1dB
- Peak measuremet range: around 110dB (by built-in mic perfomance)
- Pause the screen during measurement
- Setting of measurement duration: 10sec - 1hour

- Time-domain Graph function: Sound level graph chart (TIME mode)
- 1/3 octave-band Spectrum Analyzer function (1/3 Oct mode)
- FFT Analyzer function(FFT mode)

- Capture the measurement results with Time-stamp and GPS location data to Camera-roll.

Applications:
- Live Sound
- Environmental noise measurement
- Installation of audio equipment
- Tuning of audio equipment
- Architectural acoustics
- Broadcast
- Device management

Note:
The sound level measurements by this application are rough estimate. You should use as a supporting tool measuring noise level by this app. We adjust the reference value of this app for iPhone. Please be careful in your iPhone's microphone being uneven gain.