audio-analyzer-for-android

A fork of audio-analyzer-for-android in Google code, with a lot of enhancement.

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    License

    Apache License 2.0

    <i>Audio Spectrum Analyzer</i> was designed with accuracy and ease of use in mind. It can be used for monitoring or measuring environmental sound or noise; help tuning instruments; timing short sound events; and educational purpose.

    <br><b>Features:</b>

    * No Ads.

    * With log or linear frequency axis.

    * Can label frequency axis using music pitch note.

    * Support all possible sampling rates and almost all recorder sources of your device.

    * Graph with nice grid lines and labels, easy to operate.

    * FFT sample size range from 64 to 32768. Using half-overlapped (adjustable) time window to increase time resolution.

    * Various window functions provided, for different frequency resolution and dynamical range.

    * Peak frequency detection (in unit of Hz and note+cent), with a moderate accuracy (FFT + interpolation).

    * With dB or A-weighting dB (dBA).

    * Can record the audio in wav (PCM) format.

    * Pinch to zoom, drag or swipe to move, long-press to place cursor, double touch to reset zoom.

    <b>Notes: May need some knowledge of discrete Fourier transform and spectrum analysis to use it well. The actual accuracy mainly depends on your device. No calibration interface provided.

    Creator

    woheller69

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