参数资料
型号: ACICE0105
厂商: Microchip Technology
文件页数: 26/152页
文件大小: 0K
描述: MPLABICE PARALLEL CABLE
标准包装: 3
附件类型: 并行缆线
适用于相关产品: MPLAB?ICE
产品目录页面: 658 (CN2011-ZH PDF)
Development Systems Ordering Guide
NEW
dsPIC30F Speech Encoding/Decoding Library
The dsPIC30F Speech Encoding/Decoding Library
performs toll-quality voice compression and voice
decompression. The library is based on a modified
version of Speex source code and features a 16:1
compression ratio. It samples speech at 8 kHz and
compresses it to a rate of 8 kbps. Storing compressed
speech for playback requires approximately 1 Kbyte of
memory for each second of speech.
Features
Key features of the library include:
? Fixed 8 kHz sample rate
? Fixed 8 kbps output rate
? PESQ-based Mean Opinion Score: 3.7-4.2 (out of 5.0)
? Code Excited Linear Prediction (CELP)-based coding
? Two analog input interfaces – codec or on-chip
12-bit ADC
? Two analog output interfaces – codec or
on-chip PWM
? Optional Voice Activity Detection
? Playback-only applications will benefit from the
Speech Encoder Utility. It allows you to make
encoded speech files from your desktop using a PC
microphone or WAV file
? Storing compressed speech requires 1 KB of
memory per second of speech
? Off-chip support for playback of long speech samples
? Royalty free (only one-time license fee)
? Full compliance with Microchip MPLAB ? C30
C Compiler Tools
? “dsPIC30F Speech Encoding/Decoding Library
User ’s Guide” (DS70154) is provided to help the user
understand and use the library
? Designed to run on dsPICDEM? 1.1 Demonstration
Board (DM300014)
Ordering Information:
Resource Requirements
Decoder:
Playback Interface: Si-3000 Audio codec or PWM
Computational Power: 3 MIPS
Program Flash Memory: 15 KB
RAM*: 3.2 KB
Encoder:
Sampling Interface: Si-3000 Audio codec or 12-bit ADC
Computational Power: 19 MIPS (worst case)
Program Flash Memory: 33 KB
RAM*: 5.4 KB (1.2 KB is scratch)
* Full-duplex support is presently not possible due to RAM requirements,
but support will be provided with future devices. Half-duplex support is
now possible and requires 6.8 KB of RAM.
SW300070-EVAL
SW300070-5K
SW300070-25K
SW300070-100K
DS70146
DS30177T-page 20
dsPIC30F Speech Encoder/Decoder Library Software License (Evaluation Only)
dsPIC30F Speech Encoder/Decoder Library Software License (Up to 5K units)
dsPIC30F Speech Encoder/Decoder Library Software License (Up to 25K units)
dsPIC30F Speech Encoder/Decoder Library Software License (Up to 100K units)
“dsPIC30F Speech Encoding/Decoding Library Product Overview”
? 2005 Microchip Technology Inc.
相关PDF资料
PDF描述
AD811JR-EBZ BOARD EVAL FOR AD811JR
ADA4927-1YCP-EBZ BOARD EVAL FOR ADA4927-1YCP
ECM12DRTI-S13 CONN EDGECARD 24POS .156 EXTEND
1-1589476-0 CONN RCPT 15POS 28AWG 3M
ECM12DRKI-S13 CONN EDGECARD 24POS .156 EXTEND
相关代理商/技术参数
参数描述
ACICE0106 功能描述:处理器配件 2000/4000 Tripod RoHS:否 制造商:Olimex Ltd. 产品:Cable 用于:
ACICE0107 功能描述:处理器配件 2000 Flex Cable RoHS:否 制造商:Olimex Ltd. 产品:Cable 用于:
ACICE0108 功能描述:处理器配件 ICE2000 USB/Parallel Adapter RoHS:否 制造商:Olimex Ltd. 产品:Cable 用于:
ACICE0201 功能描述:插座和适配器 300 mil adapter plug RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x
ACICE0202 功能描述:插座和适配器 300 mil adapter plug RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x