Pocket PC RTA - PPC Spectrum Analyzer Analyser- Equalizer software - Pocket PC Sound Software - Acoustic Software - HandDee Spectrum Analyzer

Description:

The HandDee Spectrum Analyzer generates real-time fading frequency spectrum or scrolling spectrogram on the pocket PC. An intelligent wave monitor window gives you a stable waveform display. The fading spectrum or spectrogram plot provides fine controls of LOG/linear scale, wide/narrow band analysis and long/short time averaging. Smart peaking envelopes are provided for music monitor and audio system calibration respectively. HandDee features makes speaker system frequency response curve plotting a snap. Other HandDee functions such as background sound removal fix any noise in the environment and inside the PocketPC microphone circuit.

HandDee automatic start program in last option settings.
Selectable 11KHz or 22KHz (11KHz only for PPC2002 models) sampling rate.
LOG/linear frequency scale selection.
Adjustable dB range from 0-100dB.
Turn on/off dB scale and grid lines.
HandDee preset analysis parameters for frequency and time averaging.
Narrow band frequency analysis for accurate pitch measurement.
General purpose medium band frequency analysis in monitoring musical performance or recordings.
Wide band frequency analysis to clearly see the formant peaks of vowel sound.
Short time averaging to detect transient or one-time events.
Medium time averaging follows music changes quickly while smoothing out noise and vibrato.
Long time averaging shows persistent sound and general background noise level.

Applications:

PocketPC recording noise identification and removal
Set TIME AVERAGE to MEDIUM or LONG, FREQ SCALE to LINEAR, select SPECTRUM ANALYZER display, then turn on frequency and dB grid by tapping on the respective bottom icons. Spectral peaks of frequency and amplitude of pocketPC internal sampling noise becomes clear. Tab background noise ubtraction icon. The spectral peaks will disappear.

Plot Hi-Fi or speaker system frequency response profile
Download and play ¡§Frequency sweep.wma¡¨ Sound Test File in endless loop using Media Player. Feed audio output to speaker system or headphone. Set TIME AVERAGE to SHORT, FREQ RESOLUTION to MEDIUM (for PPC) or SHORT (PPC2002), PEAK PROFILING to CALIBRATE, adjust volume until a large amplitude waveform without peak clipping is shown in the upper screen. In a few seconds, the peaking envelop gives the frequency response profile of the audio system. Select LOG or LINEAR scale to see clearly the low and high frequency response.

Detect persistent noise of audio studio
Set TIME AVERAGE to LONG and PEAK PROFILING to CALIBRATE. Select SPECTRUM ANALYZER display. Switch between LOG freq scale to detect hums and LINEAR freq scale to discover buzz noise. When suspect noise is found, move the PocketPC around to find the location of maximum noise amplitude where the source of noise is. Take readings of the noise amplitude, remove suspect noise source and see whether the noise amplitude has reduced.

Setting up for vocal training
Set TIME AVERAGE to SHORT or MEDIUM and FREQ RESOLUTION to NARROW or MEDIUM. Select SPECTROGRAM display. Keep quiet and tab on the noise subtraction icon to remove internal sampling noise that clutters the spectrogram. Then sing at the loudest level and tab the Auto sB range setting icon.

Setting up for music enjoyment
Play your favorite music using Media Player or other audio players. Start HandDee Spectrum Analyzer. Set PEAK PROFILING to MUSIC. Select SPECTRUM ANALYZER display. The PocketPC becomes a Hi-Fi with real-time spectrum analyzer. Alternatively, you can play music from your computer or Hi-Fi and the PocketPC becomes a signal monitor.

Phonature -> Products -> PDA Application -> PocketPC Software -> HandDee Spectrum Analyzer