App Information Speedy Spectrum Analyzer
- App NameSpeedy Spectrum Analyzer
- Package Namecom.electronchaos.SpeedySpectrumAnalyzer
- UpdatedJanuary 3, 2013
- File Size347k
- Requires AndroidAndroid 1.6 and up
- DeveloperElectron Chaos
- CategoryMusic & Audio
- Google Play Link
Speedy Spectrum Analyzer 3.06 APK
New version! Professional-grade FFT / Spectrum Analyzer, tested andin use all around the world by live sound engineers, scientists,mechanics, and hobbyists!Thank you everyone for making this the topspectrum analyser application on the market. I am dedicated tomaking this app work well for you! Risk-free purchase; I willrefund your money (even beyond Google's 15 min window) if the appdoes not work for you.Features include: * Both Logarithmic &Linear frequency axis* Smooth, joyful pinch-to-zoom! Pinch to zoomin on ANY signal section... and zoom... and zoom... * Pan (verticaland horizontal) by simply dragging the screen* Dynamicallyadjusting FFT size, up to 16384 bins (for 2-3 Hz accuracy!), basedon the optimal size for your screen.* Exponential averaging(adjustable)* Peak hold overlay* Share screen snapshots easily*Range set - full audio range from 20Hz, up to 22kHz!* Peak &valley measurements with crossbar tools* Adjustable dB levels forceiling / floor* And many more!Designed & tested to work onHoneycomb, Gingerbread, and Froyo.If you have ANY problems withthis release, or requests - email email@example.com. I *will*respond, and work towards fixing your issue. And if I can't fix it,I will give you a full refund.The screenshots show some of thedynamic zooming capabilities, and the linear vs logarithmic modes.The first screenshot shows the analyser in linear mode, while thenext shows logarithmic. The screenshots show the mic on the OGDroid phone capturing a test tone at 21kHz, in addition to otherfrequencies. Nice real-time analyzer!The last two screenshots showa zoomed in signal at the lower frequency range - same signalsample (paused again), with two different windows applied.I amhonoured and humbled by each and every purchase made; thankyou!Email for contact is firstname.lastname@example.orgThank you everyonefor purchasing - the response has been great! I appreciate all theencouraging emails.Purchases are risk free - I offer refunds pastthe 15-minute window if it does not work on your hardware for somereason.H/W Updates across all versions:All reported hardware issueshave been resolved - these are listed below for documentation:Fixfor Toshiba Thrive, and Dell Streak mic input issue.Fix for SamsungCaptivate (Galaxy S SGH)! Thanks for the report Red Baron - if thisupdate fixes your problem, I would appreciate an update to yourreview.Contains workaround for the Atrix phone hardware microphoneissue. UPDATE: Fix confirmed! Thank you Motorola engineering forthe workaround.My goal is to make a useful spectrum / spectralanalyser tool for audio professionals, engineers, installers, etc.Signal processing is useful in many fields, from microphoneanalysis to RTA, to engineering / technical fields. Let me know howyou use it! I find it fascinating the different uses.Here are thepermissions the app requests, and why:*android.permission.RECORD_AUDIOTo capture audio from the Microphoneto display* android.permission.WRITE_EXTERNAL_STORAGESave the graphto an image, and send it via email.Please feel free to email mewith any questions, concerns, requests, etc. I love feedback:email@example.com
Advanced Spectrum Analyzer PRO 2.1 APK
Advanced FFT Spectrum Analyzer is a real-time ( RTA ) powerfulaudio tool to visualize and analyze signals from android devicemicrophone in frequency domain.Features:- FREE- FFT resolution upto 2.7Hz! (FFT size: from 512 to 16384 bins)- 44100 hertz (Hz) and48000 hertz(Hz) sampling frequencies- peak finding- input sourceselection ( two microphones )- several window functions to minimizethe leakage effect and increase signal peaks precision- linear andlogarithmic scales- scaling- signal averaging - peak hold- 2independent markers- markers frequency and amplitude deltas-pause/resume button- screenshots- NO ADS!
Sound Spectrum Analyzer 7.8 APK
Sound Spectrum Analyzer meters sound noise level (SPL - amplitudein decibel) and detects sound frequency spectrum in real time (RTA)using FFT. The analyzer is very easy to use and offers a lot ofuseful features: high RTA refreshing rate and frequency spectrumresolution, adjustable sound noise level (SPL) amplitude scale (upto 150 decibels), RTA peak hold function, flat reference line,local peak frequency... Sound analyzer can detect audio on 3separate channels. User can later compare noise level (SPL - dB)and frequency spectrum charts between the channels. It alsoincludes a frequency generator with noise option, which helps toanalyze the frequency response of audio system. Audio Input/outputcan be adjusted to Internal, AUX or Bluetooth. However, all I/Ooptions and combinations do not work on all devices. Soundfrequency analyzer can be accurately calibrated for each frequencyband separately.
Hz Generator 1.03b APK
Hz Generator is the perfect tool for testing audio systems. You canalso use it to prank your friends! - Generates mono sine waveaudio. - Use it as a simple 50 Hz test tone or pick anotherfrequency. - Configurable from 20 Hz up to 20 000 Hz! - NEW: Playssound in background (paid Unlocker required) To play sound inbackground install Unlocker side-by-side:https://play.google.com/store/apps/details?id=com.aoe.hzgeneratorunlockerEasy to use: - Set the frequency with slider or buttons - The powerbutton toggles audio on and off. - Adjust volume using devicevolume controls. DISCLAIMER Always remember to turn the volume downon your sound system before connecting and turning Hz Generator on.All frequencies are not playable on all devices/audio systems. Allfrequencies cannot be heard, but can be harmful if too loud. Alsobe kind to animals and neighbors. We are not in any way responsiblefor any health, material or other damage resulting directly orindirectly from the use, operation or malfunction of thisapplication.
SPL Meter APK
Sound Pressure Level Meter. This app uses the microphone to detectsound and convert it into an SPL value. FOR INDICATION ONLY.Results depend on your device and its hardware. The range betweenthe noise floor and saturation may be only 20 dB on the worstdevices, but could exceed 100 dB on the best devices. Features ofthis SPL meter include: Analogue Dial with Max and Min indicators.Weighting – A, C or None . (A weighting filters the high and lowfrequencies according to how the ear perceives sound loudness).Results are in dB, dBA or dBC depending on weighting. Averaging ofSPL, Clear and Pause buttons. Octaves and third octaves - Frequencyspectrum of the sound. Graph – Shows the time depedence of thesound. Autoscale or manual (pinch & pan) Y-Axis. Relativebutton – if looking for differences, tapping REL will remove thecurrent averaged value from the reading. Calibrate option – If youhave a calibrated SPL meter or known loudness source, you can usethis option to calibrate the meter. (However its still forIndication Only). More technical details can be found on thewebsite.
Function Generator 1.2 APK
Dual channel function / waveform / signal generator for the speaker/ headphone audio output.No Ads, No Permissions, No In AppPurchasing, No Limited Features. Full Version.Output is 16 bit foreach left and right channels and at 44.1kHz. Output will depend onyour device hardware. Some device hardware may may filter out theDC bias and low frequency signals. At high frequencies, thewaveforms will be distorted due to limited number of samples foreach waveform (for example at 4.41kHz, a sine waveform will beapproximated by only 10 points). Therefore this is forfun/educational use, for critical applications use a realcalibrated function generator.Left and Right audio channels can beassigned to either channel 1 or channel 2.Sine, Square &Triangular waveforms.Frequency range from 1 mHz up to 22kHz.Amplitude as percentage 0-100%.Set duty for square waveforms orskew triangular waveforms to get saw waveforms.Offset the phase ofwaveforms.Sweep frequency or amplitude (Single, Repeat & Bouncemodes).Amplitude Modulation (AM).Frequency Modulation (FM).Burstmode for a specific number of waveforms (1-10000).White noise &pink noise Generator. Pink (1/f) noise falls of at ~3dB per octavebetween 43 Hz and 44 kHz. Memory slots to save & recall channelconfiguration.Select values with spring slider or number pad.Moredetailed explanation available on website
Sound Analyzer App 2.4 APK
Sound Analyzer App lets you use your smartphone as a Sound LevelMeter (SLM) and a Real time Audio Analyzer (RTA). Environmentalnoise, measured in decibel (dB) can be monitored in real time. Themicrophone sensitivity is adjustable by means of the calibrationmenu. App with no ads, banner or popups. Features as sound meter(decibel meter): A, C and Z (flat) frequency weightings, Fast andSlow time weightings, Equivalent A-weighted continuous sound level(LAeq), A-weighted sound exposure level (LAE or SEL), A-weightedsound exposure level for a nominal 8-hour working day (noisedosimeter: LEP,d or LEX,8h). Features as 1/n octave spectrumanalyzer: 1/3 octave band spectra: Centre frequencies 25 Hz to 16kHz, 1/1 octave band spectra: Centre frequencies 31.5 Hz to 8 kHz,A, C and Z (flat) frequency weightings, Fast, Slow and Impulse timeweightings, Equivalent continuous sound level (Leq). If you are notfamiliar with Sound Pressure Level (SPL) indicators, use thedefault selection: LAF and LAeq indicators respectively forinstantaneous and averaged noise measurements. Warning: This Appdoes not claim to be an alternative to an approved Sound LevelMeter. The accuracy of the measurements depends closely on thespecifications of the microphone/amplifier which are not designedin a smartphone for Sound Pressure Level (SPL) measurements. ThisApp is for indication only or for educational purpose. Use anapproved Sound Level Meter where it is required. If you like theapp, please rate it.
Wifi Analyzer 3.11.2 APK
Spectroid 1.1.1 APK
Spectroid is a real-time audio spectrum analyzer with reasonablefrequency resolution across the the entire frequency spectrum. 💬FAQ 💬 Q: Why are the dB values negative? A: Spectroid uses dBFS(Full Scale) where 0 dB is the maximum power that the microphonecan measure, so the decibel values are negative because themeasured power is less than the maximum power. Q: Can I zoom in onthe spectrum plot? A: Yes, do a two-finger pinch-to-zoom gesture.Q: Why are there discontinuities/gaps in the spectrum plot andwaterfall? A: Spectroid uses multiple FFTs overlapped in frequencyin order to provide better frequency resolution at lowerfrequencies than a single FFT. The caveat of this method is variedimpulse response and minor discontinuities in frequency. The upsideis that it can efficiently produce a spectrum that better matchesthe frequency resolution of human audio perception. It's stillprobably not as good as your ears though!
Audio Frequency Counter 1.11 APK
Frequency counter based on the microphone input. Counts when theinput rises or falls past a set level and converts into intofrequency or a time period. FOR INDICATION ONLY. Results depend onyour device and its hardware. If you just want to know thefrequency of a sound with harmonics (e.g. mucial instrument), a FFTbased app such as keuwlsofts spectrum analyser or guitar tuner(both free) will be better. This app can provide more accuratefrequency measurement for single frequency input signals. Featuresinclude: Display of triggered event count and frequency or timeperiod. Graph of input signal, 2.5 ms/div up to 640 ms/div. Gatetime of 0.1s, 1s, 10s or 100s. Gain from x1 to x1000. Trigger onrise or fall. AC or DC coupling. Set a noise level so new event isnot triggered until the signal has first passed this level. Moredetails can be found on the website.
WiFi Analyzer - Network Analyzer 1.0.21 APK
Optimize your WiFi network using WiFi Analyser by examining WiFinetworks and test wifi signal.WiFi Analyser - Network Analyzer canOptimize WiFi Channel and is best WiFi Channel Scanner and WiFiChannel Analyzer.WiFi Analyser - Network Analyzer can tell you wifisignal strength and see witch wifi signal is better like wifisignal strength meter.WiFi Analyzer shows the Wi-Fi channels aroundyou. Helps you to find a less crowded channel for your wirelessrouter.WiFi Analyzer can help you diagnose various problems in yourwifi network setup, Internet connectivity, and also detect variousissues on remote servers.WiFi Analyzer is a powerful networkanalyzer that helps you to watch the state of WiFi networks bygathering data about its parameters.WiFi Analyzer shows allneighbouring wi-fi networks together with additional details suchas signal strength, encryption and router manufacturer to helpdiscovering the best channel for a wireless router. Everythingworks with both IPv4 and IPv6.With WiFi analyzer App We can Scanall available wireless networks in range and shows you informationabout them, such as:- WiFi Test Signal And Speed- Network SSID- MACaddress of access point- Network Frequency(2.5Ghz/5GHz)- WiFiNetwork security- Vendor name of WiFi Device- Graph of SignalStrength Vs. Channel Graph- Shows Best channels of Connected WiFi-Channel Rating And Much More.✩✩Rate Us 5 Stars if you found thisapp useful, and the following you can do✩✩find wifi signalsourceWifi analyzerOptimize Wifi Network and Signal Strengthtestwifi signalWiFi Analyze and WiFi BoostOptimize WiFi ChannelOptimizewifi signalWiFi Channel Scanner and WiFi Channel AnalyzerTest wifisignal strengthCheck wifi signalfind a less crowded channelnetworkanalyzercheck wifi channelsWifi signal meterWifi signal Strengthmetercheck wifi signal strengthShows the Wi-Fi channels aroundyouMeasure signal strengthtest wifi strengthtest wificonnectiondetect wifi signalwifi signal boosterMonitor strength ofnearby wifi networksfind optimal placement for wifi receiverShowssignal strengthwifi test signal and speedWiFi Analyzer is designedto use as few permissions as possible. It asks for just enough toperform the analysis. Application Requires only WiFi AccessPermission and you can be sure it does not send any personal/deviceinformation to any other source and it does not receive anyinformation from other sources.