PicoDAC
PORTABLE AUTOMATIC VOICE
FILTER
Model PDAC256
USER’S MANUAL
D
IGITAL
A
UDIO
C
ORPORATION
A DRI COMPANY
“Technology to Make Listening Easier”
Страница 1: ...PicoDAC PORTABLE AUTOMATIC VOICE FILTER Model PDAC256 USER S MANUAL DIGITAL AUDIO CORPORATION A DRI COMPANY Technology to Make Listening Easier...
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Страница 3: ...2004 Document Number 960812 DIGITAL AUDIO CORPORATION A DRI Company 4018 Patriot Drive One Park Center Suite 300 Durham NC 27703 Phone 877 5DACAUDIO Fax 877 5DACFAX sales dacaudio com www dacaudio co...
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Страница 5: ...5 2 1 Controls and Connectors 5 2 2 Typical Setups and Operating Instructions 6 3 0 STANDARD FILTER CONFIGURATIONS 9 3 1 Preprogrammed Filter Setups 9 3 2 Hints For Using The PicoDAC Adaptive Filter...
Страница 6: ...widths 10 Table 3 Filter Size and Noise Types 11 LIST OF FIGURES Figure 1 PicoDAC 5 Figure 2 Basic Enhancement Setup 7 Figure 3 PicoDAC Rear Panel Thumb Screws 13 Figure 4 PicoDAC Rear Panel Removal 1...
Страница 7: ...th order fixed and or adaptive filters 1 2 Standard Filter Configurations The ten standard filter configurations in the PicoDAC are optimized for noise removal and clarification of live and recorded v...
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Страница 9: ...el INPUT rotary control adjusts the gain of the input signal Immediately above this control is a tricolor Level LED that indicates input signal strength Adjust the INPUT control so that the tricolor L...
Страница 10: ...ivated with the ON OFF switch If no connection is made to the POWER connector the PicoDAC is powered from two internal 9 V alkaline batteries NOTE The AC power adapter does not charge the internal bat...
Страница 11: ...and adjust the front panel INPUT knob clockwise until the tricolor LEVEL LED flashes green If this LED flashes in the red color region then the knob has been turned too far reduce the INPUT knob sett...
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Страница 13: ...Adaptive Small 6 7 5 Small Simple Tones Band Pass 300 5000 Hz 7 7 5 Medium Normal Setting Band Pass 300 5000 Hz 8 7 5 Large Complex Noises Band Pass 300 5000 Hz 9 7 5 Large Complex Noises Adaptive Sm...
Страница 14: ...r example if the input source is a telephone line that typically has a bandwidth of 3 4 kHz use filters 0 and 1 Since the telephone line does not have any voice energy above 3 4 kHz setting the PicoDA...
Страница 15: ...s Small 2 6 Simple Noises Background music tones Medium 0 3 7 Normal Setting Background music tones room reverberations May provide superior quality Large 1 4 5 8 9 Complex Noises Raspy hum or buzz Ta...
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Страница 17: ...nce 4 1 Battery Replacement The normal running time for the PicoDAC on battery power is approximately 6 hours To replace the 9V batteries 1 First disconnect all cables from the unit including the DC p...
Страница 18: ...2 Remove the rear panel and bezel Figure 4 PicoDAC Rear Panel Removal 3 While holding the base of the unit gently pull the black top cover toward the rear of the unit Figure 5 PicoDAC Top Cover Remov...
Страница 19: ...revious action First insert the terminal end of the battery by slowly prying it between the clips Next press down on the body of the battery It should snap into place Ensure that it is making good con...
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Страница 21: ...bandwidth Level Front panel tricolor LED red 3 dB orange 9 dB Indication green 15 dB 5 2 Digital Microprocessor TMS320F206 at 20 MIPS Dual DSP56200 Digital Filter Processor Program ROM 32k x 16 Non Vo...
