FM-1288
High Performance Voice Processor for Automotive Handsfree
User Configuration Manual (Product Information) version 0.6
Sep 20, 2012 2 UCM-FM1288 V06
PRE-PRODUCTION INFORMATION
THIS DOCUMENT CONTAINS INFORMATION ON A PREPRODUCTION PRODUCT. SPECIFICATIONS AND PREPRODUCTION
INFORMATION HEREIN ARE SUBJECT TO CHANGE WITHOUT NOTICE.
FORTEMEDIA, INC. PRODUCTS ARE NOT INTENDED FOR LIFE SAVING NOR LIFE SUSTAINING APPLICATIONS AND FORTEMEDIA,
INC. THUS, ASSUMES NO LIABILITY IN SUCH USAGES. FORTEMEDIA, INC. PRODUCTS MAY ONLY BE USED IN LIFE-SUPPORT
DEVICES OR SYSTEMS WITH THE EXPRESS WRITTEN APPROVAL OF FORTEMEDIA, INC., IF A FAILURE OF SUCH COMPONENTS
CAN REASONABLY BE EXPECTED TO CAUSE THE FAILURE OF THAT LIFE-SUPPORT DEVICE OR SYSTEM, OR TO AFFECT THE
SAFETY OR EFFECTIVENESS OF THAT DEVICE OR SYSTEM. LIFE SUPPORT DEVICES OR SYSTEMS ARE INTENDED TO BE
IMPLANTED IN THE HUMAN BODY, OR TO SUPPORT AND/OR MAINTAIN AND SUSTAIN AND/OR PROTECT HUMAN LIFE. IF THEY
FAIL, IT IS REASONABLE TO ASSUME THAT THE HEALTH OF THE USER OR OTHER PERSONS MAY BE ENDANGERED. WE HEREIN DISCLAIM ANY AND ALL WARRANTIES, INCLUDING BUT NOT LIMITED TO WARRANTIES OF NON-INFRINGEMENT,
REGARDING CIRCUITS, DESCRIPTIONS AND CHARTS STATED HEREIN.
Fortémedia, SAM, ForteVoice, Fortémedia and SAM logos are trademarks of Fortémedia,, Inc. All other trademarks belong to their respective companies. Copyright ? 2012 Fortémedia all rights reserved Sep 20, 2012 3 UCM-FM1288 V06
TABLE OF CONTENT
STATUS
INFORMATION ............................................................................................................. 4 1.0
OVERVIEW .......................................................................................................................... 7
2.0 GLOSSARY AND
NOTATION ................................................................................................ 7 3.0 GENERAL
CONFIGURATION ................................................................................................ 8 3.1 DEFAULT PROFILE
SETUP ................................................................................................... 8 3.2 BANDWIDTH CONTROL
SELECTION.................................................................................... 8 3.3 SINGLE MICROPHONE HANDS-FREE APPLICATION RECOMMENDED SETTINGS ............... 9
4.0 MICROPHONE SIGNAL CONDITIONS FOR FM-1288 ......................................................... 10 5.0 DEBUGGING SUPPORT
INFORMATION ............................................................................. 11 5.1 BYPASS
MODES ................................................................................................................. 13 6.0 PERFORMANCE
TUNING .................................................................................................... 14 6.1 GAIN
FLOW ....................................................................................................................... 14
6.2 ACTIVITY DETECTORS
(VAD) ............................................................................................ 17 7.0 PERFORMANCE TUNING PROCEDURE
DETAILS ................................................................ 18 7.1 LINEAR
AEC ....................................................................................................................... 18 7.2 FREQUENCY DOMAIN ACTIVITY
DETECTORS ................................................................... 19 7.3 FREQUENCY DOMAIN NOISE
SUPPRESSION .................................................................... 20 7.4 FREQUENCY DOMAIN ECHO
CANCELLATION .................................................................... 23 7.5 LINEOUT
EQUALIZER ........................................................................................................ 26 7.6 COMFORT NOISE
FILL ....................................................................................................... 28 7.7 FAR END NOISE SUPPRESSION
(FENS) ............................................................................ 29 7.8 BRIGHT VOICE ENHANCEMENT
(BVE) .............................................................................. 32 7.9 BANDWIDTH EXTENSION
(BWE) ...................................................................................... 33 7.10 FAR FIELD PICKUP
(FFP) ................................................................................................ 34
8.0 FM-1288 PARAMETER
TABLE ............................................................................................ 36
REFERENCES ........................................................................................................................... 54 I.
TERMINOLOGY .................................................................................................................................................... 54 II. RELATED
DOCUMENTS ....................................................................................................................................... 55
Sep 20, 2012 4 UCM-FM1288 V06
Status Information
The status of this User’s Configuration Manual is Production Information. Advance Information
Information for designers concerning Fortemedia product in development. All values specified in the document are the target values of the design. Minimum and maximum values, if specified, are only given as guidance to the final specification limits and must not be considered as the final values. All detailed specifications including pinouts and electrical specifications may be changed by Fortemedia without notice.
Pre-production Information
Pinout and mechanical dimension specifications finalized. All values specified in the document are the target values of the design. Minimum and maximum values, if specified, are only given as guidance to the final specification limits and must not be considered as the final values. All electrical specifications may be changed by Fortemedia without notice.
Product Information
Final User’s Configuration Manual including the guaranteed minimum and maximum limits for the electrical specifications.
Product User’s Configuration Manual supersede all previous document versions.
Note
While every case has been taken to ensure the accuracy of the contents in this Data Sheet, Fortemedia cannot accept responsibility for any errors. Fortemedia reserves the right to make technical changes to its products as part of its development program.
Sep 20, 2012 5 UCM-FM1288 V06
TABLES
Table 1: Single Microphone Hands-Free Application Settings ................................................... 9 Table 2: Air-tight Condition for
Microphones............................................................................ 10 Table 3: Debugging
Signals....................................................................................................... 11 Table 4: Signal Paths and Gains of Bypass
Modes ................................................................... 13 Table 5: Bypass Modes key
parameters ................................................................................... 13 Table 6: Linear AEC
parameters................................................................................................ 18
Table 7: Voice Activity Detectors - VAD01, VAD02, VAD03, VAD04, VAD05 ......................... 19
Table 8: Frequency Domain Noise Suppression (FDNS) parameters ...................................... 20
Table 9: Frequency Domain Echo Control
parameters............................................................. 23
Table 10: Line-out Equalizer
parameters.................................................................................. 26 Table 11: Far End Noise Suppression (FENS) parameters....................................................... 29 Table 12: Bright Voice Enhancement (BVE)
parameters ......................................................... 32 Table 13: Far Field Pickup
parameters ..................................................................................... 34 Table 14: FM-1288 Parameter
Table......................................................................................... 36 Table 15:
Terminology ............................................................................................................... 54 Table 16: Related
Documents ................................................................................................... 55
Sep 20, 2012 6 UCM-FM1288 V06
Document History
Revision Date Description
0.1 Feb 20, 2012 Early Draft, original publication date
0.2 March 25, 2012 Editorial updates, 1st draft Advance Information 0.3 June 04, 2012 Yan Tang, First Release Draft
0.4 July 01, 2012 Yan Tang, AiGuo Zhang, Harry Liu, et al. First Release version 0.5 July 03, 2012 AiGuo Zhang, editorial updates