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| 型號： | D6386A-11 |
| 英文描述： | Telecommunication IC |
| 中文描述： | 通信集成電路 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 450K |
| 代理商： | D6386A-11 |
H
ANDS
F
REE
Chip for an all Digital Telephone Answering Device
with True FULL Duplex SpeakerPhone and Speech Recognition
General Description
The D6386A chip is a digital speech/signal processing subsystem that implements all functions of T
RUE
S
PEECH
speech compression and voice prompts, telephone line signal processing, memory management, F
LEXI
S
PEECH
and
True FULL Duplex SpeakerPhone
for an all digital answering machine. In addition, the D6386A has Speech
Recognition capability for voice control of the answering machine. The D6386A is fully controlled by the system Host
through a simple interface protocol. The Host controller provides activation and control of all system functions such as
speech recording and playback, DTMF and call progress tone detection, DTMF and tone generation, and voice
prompting.
A
D6386A
DSP Speech
Processor
CODEC
CODEC
Telephone
Line
Interface
Speaker
Phone
Interface
Host
Controller
ARAM
Memory
Voice
Prompt
ROM
Phone
Line
Optional
Figure 1. D6386A System Block Diagram
Key Features
n
High-quality, variable low rate T
RUE
S
PEECH
digital
speech compression allowing 14-15 minutes of
recording time per each 4 Mbit ARAM (Audio
Grade DRAM)
n
T
RUE
S
PEECH
, natural-sound voice prompting, for
Day/Time stamp and voice instructions
n
Speaker-Dependent speech activated funtions,
supports multi-users in noisy environments with
high recognition rate (>97%)
Eight Speakers
64 Word Vocabulary each
n
Flexible storage of incoming messages (ICM),
outgoing messages (OGM). Supports multiple
OGMs and multiple mailboxes
n
DTMF generation and detection with near-end
echo cancellation for superior performance
n
Storage of 32 telephone numbers for speed dialing
n
Easy Host software conversion from the D6305B
n
F
LEXI
S
PEECH
variable speed, natural sound
playback (50%-200%)
n
Selectable Master/Slave CODEC operation
n
Supports offset playback for jumps within a
message
n
True FULL Duplex SpeakerPhone with both
acoustical and near-end echo cancellation
n
Programmable Thresholds for VOX, DTMF, and
Call Progress
n
Digital Volume Control
n
Simple 8-bit Host Hardware Interface
D6386A
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