参数资料
| 型号： | DV243002 |
| 厂商： | Microchip Technology |
| 文件页数： | 23/152页 |
| 文件大小： | 0K |
| 描述： | KIT DEVELOPMENT DESIGNER SEEPROM |
| 标准包装： | 3 |
| 系列： | SEEVAL® |
| 类型： | SEEPROM |
| 适用于相关产品： | 24xx、93xx、25xx 系列 |
| 所含物品： | 软件模型、评估系统、样品、软件、缆线和电源 |
| 其它名称： | Q1540493 |
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Software
dsPIC30F Acoustic Echo Cancellation Library
The dsPIC30F Acoustic Echo Cancellation (AEC)
Library provides a function to eliminate echoes
generated in the acoustic path between a speaker and
Far End
Speech
User Application
Receive Path
Far End
Speech
a microphone. This function is useful for speech and
telephony applications in which a speaker and a
Acoustic Echo
microphone are located in close proximity to each other
and therefore, susceptible to signals propagating from
Cancellation
Adaptive
Filter
Echo
the speaker to the microphone resulting in a
perceptible and distracting echo effect at the far end. It
is especially suitable for these applications:
Near End
Speech
-
∑ +
Send Path
Near End
Speech
?
?
?
?
Hands-free Cell Phone Kits
Speakerphones
Intercoms
Teleconferencing Systems
FAR END
? Fully tested for compliance with G.167
specifications for in-car applications
NEAR END
For hands-free phones intended to be used in compact
environments, such as a car, this library is fully
compliant with the G.167 standard for acoustic echo
cancellation.
Features
? Only 2 user functions
(“ AcousticEchoCancellerInit ” and
“ AcousticEchoCanceller ”), both of which can be
called from either a ‘C’ or Assembly application
program
? Full compliance with the Microchip dsPIC30F C30
C Compiler, Assembler and Linker simple user
interface – just one library file and one header file
? Highly optimized Assembly code, utilizing DSC
instructions and advanced addressing modes
? Echo cancellation for 16, 32 or 64 ms echo delays or
? Audio Bandwidth: 0-4 kHz at 8 kHz sampling rate
? Convergence Rate: Up to 43 dB/sec., typically > 30
dB/sec.
? Echo Cancellation: Up to 50 dB, typically > 40 dB
? Can be used together with the Noise Suppression
(NS) Library, since the same processing block size
(10 ms) is used
? “dsPIC30F Acoustic Echo Cancellation Library
User ’s Guide” is provided to help the user
understand and use the library
? Demo application source code is provided with the
library. Accessory kit available for purchase includes:
an audio cable, headset, oscillators, microphone,
speaker, DB9 M/F RS-232 cable and DB9M-DB9M
Null Modem Adapter and can be used for library
evaluation
? Contact Microchip sales for FREE evaluation
samples
‘tail lengths’ (configurable)
Ordering Information:
SW300060-EVAL dsPIC30F Acoustic Echo Cancellation Library Software License (Evaluation Copy)
SW300060-5K
dsPIC30F Acoustic Echo Cancellation Library Software License (Up to 5K units)
SW300060-25K dsPIC30F Acoustic Echo Cancellation Library Software License (5K to 25K units)
SW300060-100K dsPIC30F Acoustic Echo Cancellation Library Software License (25K to 100K units)
AC300030
DS70123
Accessory Kit (includes: audio cable, headset, oscillators, microphone, speaker,
M/F RS-232 cable, DB9M-DB9M Null Modem Adapter)
“dsPIC30F Acoustic Echo Cancellation Library Product Overview”
(Available at: www.microchip.com)
? 2005 Microchip Technology Inc.
DS30177T-page 17
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DV243002 | 制造商:Microchip Technology Inc 功能描述:KIT-EVAL SERIAL EEPROM FOR WIN |
| DV243002 | 制造商:Microchip Technology Inc 功能描述:Tools Development kit Interface Type:RS |
| DV243003 | 功能描述:存储器 IC 开发工具 MPLAB Starter Kit for Memory Products RoHS:否 制造商:STMicroelectronics 产品:Reference Boards 工具用于评估:M24LR64-R 存储容量:64 kbit 存储类型:EEPROM 工作电源电压:1.8 V to 5.5 V |
| DV244005 | 功能描述:仿真器/模拟器 In Circuit Emulator MPLAB REAL ICE RoHS:否 制造商:Blackhawk 产品:System Trace Emulators 工具用于评估:C6000, C5000, C2000, OMAP, DAVINCI, SITARA, TMS470, TMS570, ARM 7/9, ARM Cortex A8/R4/M3 用于:XDS560v2 |
| DV244005 | 制造商:Microchip Technology Inc 功能描述:REAL ICE BASE PROBE KIT 制造商:Microchip Technology Inc 功能描述:PROBE KIT MPLAB REAL ICE 制造商:Microchip Technology Inc 功能描述:PROBE KIT, MPLAB REAL ICE 制造商:Microchip Technology Inc 功能描述:PROBE KIT, MPLAB REAL ICE, FOR FLASH DSC, MCU; Core Architecture:PIC, dsPIC; IC Product Type:In-Circuit Emulator; Features:Real-time Execution and Real Time Trace Collection, Stopwatch, Real Time Watch ;RoHS Compliant: Yes 制造商:Microchip Technology Inc 功能描述:PROBE KIT, MPLAB REAL ICE, FOR FLASH DSC, MCU; Core Architecture:PIC, dsPIC; Core Sub-Architecture:(Not Available); IC Product Type:In-Circuit Emulator; For Use With:PIC and dsPIC Flash Microcontroller ;RoHS Compliant: Yes |
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