Room Acoustics Meter vs Sound Spectrum Pro Usage & Stats

This app helps to set up a listening room. Connect your Android device to your sound system and start the measurement. Result are curves for frequency response, phase, impulse response. Likewise waterfall diagrams and sound pressure maps can be generated. Features - Measurement via logsweep - Serial function for fast measurement at many microphone positions - Automatic determination of the microphone position based on the sound propagation times - Automatic generation of file names - fast saving of single measurements by OK-click - Frequency response: sum frequency response and windowed - Fade-in of calculated reflections (comb filter) for comparison with the measurement data - Phase: raw data, rolled up and group delay - Impulse response - linear: raw data, smoothed data, step response, energy-time curve - Impulse response - logarithmic: raw data, smoothed data, maximum values, Energy-Time-Curve, Schroeder Curve - Impulse response filter for windowed frequency responses or waterfall plots - Display of tangents of the Schroeder curve for EDT, T15, T20, T30 or freely definable rules - Display of frequency response and impulse response customizable: zoom, curves can be shifted against each other, different orders... - T60 as a function of frequency and comparison with DIN 18041, IEC 60268 13, EBU Tech 3276 (2nd) - Waterfall display (time evolution of frequency response) via wavelet or FFT analysis - Spectrogram representation - Frequency-dependent sound pressure map - Calibration possibilities for the built-in microphone by comparison measurements, if a measurement microphone is available. - Use of measurement microphones (import of calibration curve). - Export of results: in HTML format - Export of measurement data: Impulse response accessible as .wav file and measured values in CSV and .FRD format. - Export of frequency response and phase in .FRD format (allows import and further processing with many audio measurement programs) - English and German

Google Play 商店
免费
音乐与音频

商店排名

- -

Sound Spectrum Pro

RTA (Real-Time Analyzer), FFT (amplitude display driven by Fast Fourier Transform), calibration, signal generators... Everything is included, bundled in a friendly interface with many on-screen controls and smooth real-time display. == Features == + FFT (amplitude) and RTA (octave, 1/3 octave, ... down to 1/24 octave). + Sound pressure level dBA, dBC, and dBZ. + Noise Criterion and Noise Rating in octave RTA. + Equivalent continuous sound level LAeq, LCeq, LZeq, LAeq15, LAeq60. + Impulse response and RT60 measurement. + Large font SPL + LEQ meter. + THD+N Total Harmonic Distortion plus Noise + Lightning-fast FFT with size from 16k to 1M, providing frequency resolution of 0.05Hz directly and 0.01Hz with downsampling. + Sample rate of 48kHz, if supported by the device. + Many window functions to choose from. + Logarithmic or linear frequency axis. + Peak and valley hold with adjustable decay. + Highest peak display + Adjustable exponential smoothing. + Easy pan (drag) and zoom (pinch). + Measurement cursors, also used for setting frequency of signal generators. + File load/save and full calibration capability, for accurate SPL readings. + Signal generators: tone, white noise, white sweep, pink noise, pink sweep, pink octave, pink 1/3 octave. + Synchronous measurement mode (including frequency sweep) for clean and fast spectrum analysis. + Loopback mode to try out signal generators and window functions. + Sharing and printing of screenshots. + No ads!