AC164105 Microchip Technology, AC164105 Datasheet - Page 15

• Manufacturer Part Number: AC164105
• Description: MODULE RCVR RFPIC 433MHZ (PKG/5)
• Manufacturer: Microchip Technology
• Type: Receiverr

Specifications of AC164105

• Frequency: 433MHz
• Wireless Frequency: 433.92 MHz
• Modulation: ASK
• For Use With/related Products: PICkit™ 1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

dsPIC30F Noise Suppression Library
The dsPIC30F Noise Suppression Library provides a
function to suppress the effect of noise interference
with a speech signal. This function is useful for
microphone-based applications, which have a potential
for incoming speech corruption by ambient noise
captured by the microphone. It is especially suitable for
systems in which an acoustically isolated noise
reference is not available, such as:
Features
 2004 Microchip Technology Inc.
Ordering Information:
SW300040-5K
SW300040-25K
SW300040-100K
AC300030
DS70124
• Hands-free Cell Phone Kits
• Speakerphones
• Intercoms
• Teleconferencing Systems
• Headsets
• As a front-end to a Speech Recognition system
• Any microphone-based application that needs to
• Only 2 user functions (“NoiseSuppressionInit”
• Full compliance with the Microchip dsPIC30F
• Simple user interface – just one library file and
(e.g., SW300010)
eliminate undesired noise
and “NoiseSuppression”), both of which can be
called from either a C or Assembly application
program
C30 Compiler, Assembler and Linker
one header file
dsPIC30F Noise Suppression Library Software License (Up to 5K units)
dsPIC30F Noise Suppression Library Software License (5K to 25K units)
dsPIC30F Noise Suppression Library Software License (25K to 100K units)
Accessory Kit (includes: audio cable, headset, oscillators, microphone, speaker,
M/F RS- 232 cable, DB9M-DB9M Null Modem Adapter)
dsPIC30F Noise Suppression Library Sell Sheet (Available at: www.microchip.com)
Contact Microchip sales for FREE evaluation samples.
and Speech
• Highly optimized Assembly code, utilizing DSP
• Audio Bandwidth: 0-4 kHz at 8 kHz sampling rate
• 10-20 dB noise reduction, depending on the type
• Source code is provided with the library
• dsPIC30F Noise Suppression Library User's
• Demo application source code is provided with
• Accessory Kit available for purchase includes: an
Noise
instructions and advanced addressing modes
of noise
Guide is provided to help the user understand
and use the library
the library
audio cable, headset, oscillators, microphone,
speaker, DB9 M/F RS-232 cable, DB9M-DB9M
null modem adapter and can be used for library
evaluation
- Several speech recordings corrupted by
Babble, Car Cabin, White and Narrowband
Noise included for library evaluation
Software Tools
User Application
Suppression
Noise
DS30177S-page 13
Speech