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Analyzer2Go 3.1
Analyzer2Go 2.0 Analyzer2Go 3.1

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Analyzer2Go 3.0 is a program running on Symbian S60 5th edition smart phones like NOKIA 5800 XpressMusic (complete list see at the bottom of the page).
It contains three modes to analyze audio captured by the microphone:

·         Oscilloscope with adjustable trigger level

·         FFT spectrum analyzer including sonagram display

·         Guitar tuner with included high precision frequency estimation

All modes can be used with both display orientations.

Operation

Oscilloscope

 


The following operations are supported:

<Up> and <Down> : change gain
 <Auto> : set gain to optimal value
 <Touch other positions> : move trigger level

 FFT Analyzer

 


The upper half shows the instantaneous spectrum of the audio signal. This trace is coded with every new sweep into colors using the rainbow map at the right border. High levels are shown in red, low levels in blue. This results in a sonagram sometimes also called waterfall display.

The following keys are supported:

<Cur> : toggle marker between off, on, peak track
 <Peak> : toggle peak hold trace (light blue) between off, peak and aging
 <Ref> : activate reference trace (white)
 <Touch other positions> : move marker

  

Guitar Tuner

 


Like a standalone instrument tuner it is able to analyze a tone of a guitar (or nearly every other instrument) and show the note and the mistuning using a pointer and bar display. In addition (which not standard for other tuners) this software shows the input level.

<Up>/<Down> : Change tuning from 440 Hz (can also be used to calibrate)
 <Mode> : toggle between FFT-Mode (standard) and ACF-Mode (enhanced precision for bass strings)
 

Specification

 

Frequency Range

10 Hz to 8000 Hz (sampling rate 16 kHz)

Sound feed

using the internal microphone or a sound source (like an E-Guitar) connected to the headset connector.

Display orientation

portrait and landscape (autodetect) depending on smart phone and firmware release

Operation Modes

FFT Analyzer : Spectrum and Sonagram
Oscilloscope : Waveform (Time Domain)
Guitar Tuner : including frequency and level display

FFT Analyzer Spec

X-Axis : 0 .. 7.2 kHz
Y-Axis : 0 .. -80 dBfs
Traces: Write, Peakhold, Reference
Trigger : Auto/Stop
Cursor : Level Riding, Peak Tracking
Sonagram : Color Map Rainbow, History typically 5 seconds

Oscilloscope Spec

Timebases : 3 ms/div, 2ms/div
(depending on display orientation)
Gain : x1, x2, x4, x8, x16, x32 ... x1024

Auto-Scale
Trigger : Norm/Stop
Trigger slope : positive
Trigger level : full Y axis

Guitar Tuner Modes

chromatic (finding all notes)

FFT (standard, resolution 0.25 Hz)
ACF (enhanced precision for bass strings)

Guitar Tuner and Frequency Estimation Uncertainty

Bass B string (30.87 Hz), ACF mode : < 5 cent
Guitar E string (329 Hz), FFT mode : < 2 cent

Tuning

430 Hz to 450 Hz for A

 
 

Supported devices

S60 5th Edition (Version 3.0), using Symbian OS Version 9.4, also known as “Symbian^2”

(Touch screen mobiles with a screen resolution of 640x360 pixels)

·      Nokia 5530 XpressMusic, Nokia 5230 XpressMusic, Nokia 5800 XpressMusic

·      Nokia N97, Nokia N97 mini

·      Nokia X6

·      Samsung i8910 HD[5]

·      Sony Ericsson Satio (Idou)

·      Sony Ericsson Vivaz (pro)

 

Please direct questions or comments regarding this website to  webmaster@brownbear.de 
Copyright © 2010 Brownbear Software GbR
Last Update: Aug 10