the PC-2000 Manual
Contents
1. 3 0 Transfer of License 3 1 The END USER shall have the right to transfer the AMBE 2000 Vocoder Chip and or PC 2000 Vocoder Board and all rights under this Agreement to a third party by either i providing the third party with a copy of this Agreement or ii providing the third party with an agreement written by the END USER hereinafter END USER Agreement so long as the END USER Agreement is approved in writing by DVSI prior to transfer of the AMBE 2000 Vocoder Chip and or PC 2000 Vocoder Board The END USER Agreement shall contain comparable provisions to those contained herein for protecting the Proprietary Information from disclosure by such third party Third parties shall agree to accept all the terms and conditions under either Agreement or the END USER Agreement 4 0 Term and Termination 4 1 This Agreement is effective upon initial delivery of the Voice Codec and shall remain in effect until terminated in accordance with this agreement 4 2 This Agreement shall terminate automatically without notice from DVSI if END USER fails to comply with any of the material terms and conditions herein END USER may terminate this Agreement at any time upon written notice to DVSI certifying that END USER has complied with the provisions of Section 3 3 4 3 Upon termination of this Agreement for any reason END USER shall i return all AMBE 2000 Vocoder Chips and or PC 2000 Vocoder Boards purchased or acquired or in Lice2. DIGITALVOICE SYSTEMS INC The Speech Compression Specialists mumanninnnnimnanne 10101110010 a PC 2000 Vocoder Board User s Manual Version 1 1 PC 2000 Vocoder Board User s Manual Version 1 1 PC 2000 Vocoder Board User s Manual Version 1 1 April 2002 Copyright 2002 Digital Voice Systems Inc 234 Littleton Road Westford MA 01886 This document may not in whole or in part be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form without prior consent in writing from Digital Voice Systems Inc Every effort has been made to ensure the accuracy of this manual However Digital Voice Systems Inc makes no warranties with respect to the documentation and disclaims any implied warranties of merchantability and fitness for a particular purpose Digital Voice Systems Inc shall not be liable for any errors or for incidental or consequential damages in connection with the furnishing performance or use of this manual or the examples herein This includes business interruption and or other loss which may arise from the use of this product The information in this document is subject to change without notice Trademarks PC 2000 Vocoder Board and AMBE 2000 Vocoder Chip are registered trademarks of Digital Voice Systems Inc Other product names mentioned may be trademarks or registered trademarks of their respective companies and are the sole prop
3. 1 Word 1 in packets 1 and 2 is 0x0002 which tell the decoder to generate a frame of comfort noise 2 Words 2 6 in packets 1 and 2 are 0x5250 0x2010 0x0000 0x0000 0x7460 respectively which corresponds to the data rate 4000 bps with 800 bps FEC in AMBE 2000 format 3 Word 10 in packets 1 and 2 is OxOOFF in order to disable DTMF tone generation 4 Finally Word 11 in packets 1 and 2 is 0x8000 in which the RIS bits are 00 in order for both the encoder and decoder to be configured with the same data rate This must be done in order for the PC 2000 to operate properly Additional information regarding the AMBE 2000 format can be referred in the AMBE 2000 users manual PC 2000 Layout amp Jumpers June 2001 pve e i RSL Handset Analog In Out 1 8 phone Jack nper Off p gar Mic In Jumpers Installed Phone jack audio out Install this Jump nal for RJM Input Install this Jumper for RCA Input Caution RCA Input Jumper and RJT Jumper should not be Copyright 2001 Install at the same timel Digital Voice Syotems Ine DVSI Confid s 254 Littleton Road l ential Proprietary Weoford MA O1IS 386 page 15 Visit us at www dvsinc com Confidential Proprietary Subject to Change PC 2000 Vocoder Board User s Manual Version 1 1 6 DVSI Services and Support Solutions If you have problems or questions about the PC 2000 Vocoder Board please contact Digital Voice Systems Inc 234 Littleton Roa
4. Windows 98 will open 3 Update Device Driver Wizard will appear 4 Insert the floppy disk included with the PC 2000 5 Press Next 6 Press Finish 7 Remove the floppy disk 8 Press Yes to restart the computer 9 The PC 2000 software is installed by copying the installation disks to the hard disk 3 3 Testing 1 Start DOS 2 Change to your PC 2000 demo directory 3 At DOS prompt type encode1 bat 17 dam pcm dam bit The file dam bit should now exist page 10 Visit us at www dvsinc com Confidential Proprietary Subject to Change PC 2000 Vocoder Board User s Manual Version 1 1 4 Listen to handset and at DOS prompt type decode1 bat dam bit dam_dec pcm You should here dam bit being decoded with the output playing on the handset also dam_dec pcm should now exist 5 At DOS prompt type en_w_cf1 bat cfg bit dam pcm dam_w_cfg bit The file dam_w_cfg bit should now exist 6 At DOS prompt type decode1 bat dam_w_cfg bit dam_w_cfg_dec pcm You should here dam_w_cfg bit being decoded with the output playing on the handset also dam_w_cfg dec should now exist 7 Holding handset at DOS prompt type a_enct bat 17 a_voice bit and begin speaking into the handset Hit Control C to stop The file a_voice bit should now exist 8 At DOS prompt type decode1 bat a_voice bit a_voice_dec pcm You should hear a_voice bit being decoded with the output playing on the handset also a_voice
5. features such as an automatic Voice Silence detection VAD adaptive comfort noise generation DTMF detection and signaling low power modes and echo cancellation Enabling these features of the AMBE 2000 Vocoder Chip is described in Section 5 The AMBE Vocoder technology is based on the Multi Band Excitation MBE speech model This speech model provides a unique speech coding framework which results in a number of advantages over linear prediction based speech coders such as CELP RELP VSELP MELP ECELP MP MLQ and LPC 10 etc 2 2 PC 2000TM Vocoder Board Basic Operation DVSI grants a license to its customers to use this software according to the terms established in the attached PC 2000 Vocoder Board END USER License Agreement Section 7 Use of the PC 2000 Vocoder Board or any portion thereof signifies acceptance of these licensing terms The PC 2000 Vocoder Board can encode data from one of two sources The first is by digitizing an analog speech signal using an on board A to D converter connected to a handset The second source is a 16 bit signed little endian 8 KHz sampled speech file PCMFILE with a pcm sufix from the PC The speech data is then processed by the encoder and converted into a AMBE 2000 Formatted Data bit stream which contains the respective 2 0 to 9 6 Kbps data bit stream the data rate depends on the software setting This bit stream is output to the PC and stored in a file The file format for the enco
6. into the AMBE 2000 Vocoder chip integrated circuit 1 4 Voice Codec shall mean the AMBE 2000 Vocoder Chip integrated circuit the AMBE Voice Compression Software firmware and associated documentation including modifications enhancements and extensions made by or for Digital Voice Systems Inc DVSI and including circuit diagrams timing diagrams logic diagrams layouts operating instructions and user manuals 1 5 DVSI represents that it owns certain Proprietary Rights in the Technology and the AMBE Voice Compression Software including patent rights in the Technology and patent rights copyrights and trade secrets in the AMBE Voice Compression Software 2 0 License Granted 2 1 Subject to the conditions herein and upon initial use of the AMBE 2000 Vocoder Chip and or PC 2000 Vocoder Board DVSI hereby grants to END USER a non exclusive limited license to use the AMBE Voice Compression Software in machine readable form solely on the AMBE 2000 Vocoder Chip Title to the AMBE Voice Compression Software remains with DVSI No license is granted for use of the AMBE Voice Compression Software on other than the AMBE 2000 Vocoder Chip No license right or interest in any trademark trade name or service mark of DVS is granted under this Agreement 2 2 END USER shall not copy extract de compile reverse engineer or disassemble the AMBE Voice Compression Software contained in the AMBE 2000 Vocoder Chip
7. 7 0 give END USER specific legal rights and END USER may have other rights which vary from state to state 9 0 Limitation of Liability 9 1 In no event shall DVSI be liable for any special incidental indirect or consequential damages resulting from the use or performance of the Voice Codec and or PC 2000 Vocoder Board whether based on an action in contract tort including negligence or otherwise including without limitation damages for loss of business profits business interruption and loss of business information even if DVSI or any DVSI representative has been advised of the possibility of such damages 9 2 Because some states do not allow the exclusion or limitation of liability for consequential or incidental damages the above limitations may not apply to END USER 9 3 DVSI s maximum liability for damages arising under this Agreement shall be limited to 20 twenty percent of the fees paid by END USER for the particular Voice Codec and or PC 2000 Vocoder Board which caused the damages or that is the subject matter of or is directly related to the cause of action 10 0 Taxes 10 1 All payments required under Section 4 0 or otherwise under this Agreement are exclusive of taxes and END USER agrees to bear and be responsible for the payment of all such taxes except for taxes based upon DVSI s income including but not limited to all sales use rental receipt personal property or other taxes which may be levied or assessed
8. AMBE 1000 Rates 4800 3600 1200 5 3100 1700 8 6400 4150 2250 10 7200 4400 2800 9 7750 250 12 ee 4650 3350 13 9600 0 4 sige 4850 4750 6 Total Rate bps Speech Rate bps FEC Rate bps n 2000 2000 0 31 2400 0 25 3600 3600 0 16 4000 0 17 200D 2400 1600 22 4800 0 18 4000 800 24 A600 3600 1200 23 AMBE 2000 Rates 2400 2400 1 6400 0 19 one 4000 2400 26 7200 4400 2800 27 8000 0 20 8000 4000 4000 28 9600 0 21 9600 3600 6000 30 2400 7200 29 Visit us at www dvsinc com page 14 Table 1 Standard Rate Table for PC 2000 Confidential Proprietary Subject to Change PC 2000 Vocoder Board User s Manual Version 1 1 5 Creating AMBE 2000 Configuration Files cfg bit The file config bit contains the following data in hexadecimal format 13ec 0002 5250 2010 0000 0000 7460 0000 0000 0000 ooff 8000 ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff 13ec 0002 5250 2010 0000 0000 7460 0000 0000 0000 ooff 8000 ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff These are two frames of AMBE 2000 formatted data which include the header information and data Note each frame begins with the sync word 0x13ec followed by 11 more words of header information in then twelve words of data information Since this configuration packet is not concerned with sending data the value Oxffff is inserted this tells the decoder to ignore the data The following items should be noted in these packets
9. _dec pcm should now exist 9 Holding handset at DOS prompt type ae_w_cf1 bat cfg bit a_v_cfg bit and begin speaking into the handset Hit Control C to stop The file a_v_cfg bit should now exist 10 At DOS prompt type decode1 bat a_v_cfg bit a_v_cfg_dec pcm You should here a_v_cfg bit being decoded with the output playing on the handset also a_v_cfg_dec pcm should now exist page 11 Visit us at www dvsinc com Confidential Proprietary Subject to Change PC 2000 Vocoder Board User s Manual Version 1 1 4 Software The PC 2000 software includes the following batch files located in your PC 2000 demo directory 1 2 3 4 5 encode1 bat decode1 bat en_w_cf1 bat a_enct bat ae_w_cf1 bat These batch files are designed to run from your dos prompt in the demo directory 4 1 Definition of Terms 1 standard rate ls a number ranging from 0 to 31 which corresponds to one of the 32 standard rate settings for the PC 2000 Refer to Table 1 for more info input Indicates a file which already exists and will be processed by the PC 2000 output Indicate a file which does not exist and will be generated by the PC 2000 pcm speech file Is a 8 kHz 16 bit little endian formatted file which contains speech data ambe speech file Is a 16 bit little endian formatted file which is in AMBE 2000TMdata format ambe configuration file Is in the same format as the AMBE speech file It is used to ref
10. cho Cancellation Single and Dual Tone DTMF Detection and Generation 1 4 AMBE 2000 Vocoder Chip Applications Cellular Telephony and PCS Satellite Communications Digital Mobile Radio Secure Communications Voice Multiplexing Voice Mail Multimedia Applications Video Conferencing page 6 Visit us at www dvsinc com Confidential Proprietary Subject to Change PC 2000 Vocoder Board User s Manual Version 1 1 page 7 Visit us at www dvsinc com Confidential Proprietary Subject to Change PC 2000 Vocoder Board User s Manual Version 1 1 2 PC 2000 Vocoder Board Overview 2 1 Advanced Multi Band Excitation AMBE Vocoder The Digital Voice Systems Inc DVSI PC 2000 board is an evaluation board for the AMBE 2000 voice codec chip The AMBE 2000 Vocoder Chip contains proprietary software which implements the Advanced Multi Band Excitation AMBE voice compression algorithm The AMBE voice coder vocoder was first developed in the mid 1990 s by Digital Voice Systems Incorporated This vocoder maintains speech intelligibility and naturalness at rates as low as 2 0 Kbps The AMBE Vocoder system is less complex than either CELP or VSELP and therefore it has been integrated into a low cost low power integrated circuit the AMBE 2000 Vocoder Chip Finally the AMBE voice coder can be easily scaled to virtually any data rate above 2 4 Kbps The AMBE 2000 Vocoder Chip includes a number of advanced
11. cumulation of static charge industry standard electrostatic discharge precautions and procedures must be employed during handling and installing To insure maximum shelf life in long term storage the PC 2000 should be kept in a moisture controlled package at lt 40_C and lt 90 RH page 9 Visit us at www dvsinc com Confidential Proprietary Subject to Change PC 2000 Vocoder Board User s Manual Version 1 1 3 PC 2000 Vocoder Board Installation and Test 3 1 Hardware Installation NOTE Before installing or removing PC 2000 Vocoder Board read and carefully follow the handling precautions described in Section 2 3 The PC 2000 Vocoder Board installation steps are as follows 1 Make sure the host computer is turned off and the AC power source is disconnected 2 Insert the PC 2000 Vocoder Board in the host computer PCI slots As the board is inserted into the host computer PCI slot make sure that the back end of the PC 2000TM Board slips into the back plane bracket on the back end of the host computer chassis 3 The board must be seated properly and securely in its PCI slot Screw the metal end bracket of the PC 2000TM Board to the computer chassis 4 Reinstall the host computer cover and reconnect the power source 5 Insert the handset into the RJ 11 connector on the PC 2000TM Vocoder Board 3 2 Software Installation The PC 2000TM software installation steps are as follows 1 Power on the computer 2
12. d Westford MA 01886 USA Developer support engineers are available Monday through Friday 8 30 AM to 5 30 PM eastern time and can be contacted by Phone 978 392 0002 Fax 978 392 8866 Email info dvsinc com World Wide Web http Awww dvsinc com 6 1 Upgrade Software to Version 2 0 If you have already purchased the PC 2000 and still have software version 1 0 you can download the update from http www dvsinc com software pc2000 pc2000 upgrade 2 0 zip 1 Extract pc2000 upgrade 2 0 zip file into your PC 2000 demo directory 2 Follow the instructions in Section 3 3 6 2 Cool Edit 2000 In order to generate and listen to a PCM FILE DVSI recommends using Cool Edit 2000 from Syntrillium Software Corporation Phone 888 941 7100 Fax 480 941 8170 World Wide Web http www syntrillium com World Wide Web hitp www cooledit com History of Revisions Revision Number Date of Revision Description Pages page 16 Visit us at www dvsinc com Confidential Proprietary Subject to Change
13. ded speech BITFILE with a bit sufix is 16 bit little endian Decoded data can then be stored as a PCMFILE in a PC while being played back to the handset via the 16 bit D to A converter This is accomplished by the Pc 2000 decoding a previously generated BITFILE This BITFILE is processed by the decoder and converted into a synthetic speech signal which is both sent to the PC s hard drive and converted into an analog signal using the on board D to A converter The encoder and decoder are fully asynchronous Digitized speech is received from or sent to an external A D D A through a serial interface Digitized speech from the A to D on the external A D D A chip is processed by the AMBE 2000 Vocoder Chip encoder and converted into compressed digital data This data is output to the channel interface which is connected to a processor controller modem or similar device Simultaneously the AMBE 2000 Vocoder Chip receives compressed digital data from the channel interface This received data is processed by the AMBE 2000 Vocoder Chip decoder and synthesized into a digital speech signal which is then converted into an analog signal using a D to A on an external A D D A chip The encoder and decoder are fully asynchronous page 8 Visit us at www dvsinc com Confidential Proprietary Subject to Change PC 2000 Vocoder Board User s Manual Version 1 1 2 3 Special Handling and Storage Precautions CAUTION To avoid damage from the ac
14. er to a file that allows the user to take advantage of the AMBE 2000 s advanced features such as enabling VAD or changing to a custom data rate and FEC 4 2 encode1 bat This file should be called with the following format from the DOS prompt encode1 bat lt standard rate gt lt input pcm speech file gt lt output ambe speech file gt For example to encode the pcm speech file dam pcm in AMBE format at 4 0 Kbps with the file name dam bit type encode1 bat 17 dam pcm dam bit Refer to Section 4 1 to clarify any misunderstood terms 4 3 decode1 bat This file should be called with the following format from the DOS prompt while optionally listening to the handset decode1 bat lt input ambe speech file gt lt output pcm speech file gt For example to decode AMBE formatted speech file named dam bit and save the output to a pcm speech page 12 Visit us at www dvsinc com Confidential Proprietary Subject to Change PC 2000 Vocoder Board User s Manual Version 1 1 file type decode1 bat dam bit dam_dec pcm Refer to Section 4 1 to clarify any misunderstood terms en_w_cf1 bat This file should be called with the following format from the DOS prompt en_w_cf1 bat lt input ambe configuration file gt lt input pcm speech file gt lt output ambe speech file gt For example to encode the pcm speech file dam pcm in AMBE format with the file name dam_w_cfg bit using the custom data rate specified in the file cf
15. erty of their respective manufacturers All Rights Reserved Data subject to change page 2 Visit us at www dvsinc com Confidential Proprietary Subject to Change PC 2000 Vocoder Board User s Manual Version 1 1 PC 2000 Vocoder Board END USER License Agreement x Important Read Carefully This end user license agreement is a legal agreement between the customer the END USER and Digital Voice Systems Inc DVSI covering the terms and conditions under which DVSI s proprietary software documentation and other material which may be provided with the PC 2000 Vocoder Board is licensed to the END USER 1 0 Preliminary Statements and Definitions 1 1 END USER shall mean the person and or organization to whom the AMBE 2000 Vocoder Chip and or PC 2000 Vocoder Board was delivered or provided to as specified in the purchase order or other documentation In the event that the END USER transfers his rights under this license to a third party as specified in section 2 2 then this third party shall become an END USER 1 2 Digital Voice Systems Inc DVSI has developed a voice coding method and algorithm the Technology based on the Advanced Multi Band Excitation AMBE voice coder The technology codes speech at bit rates of 2 4 to 9 6 kilobits per second kbps including error correction bits 1 3 AMBE Voice Compression Software shall mean the speech coding software and or firmware integrated
16. g bit type en_w_cf1 bat cfg bit dam pcm dam_w_cfg bit Refer to Section 4 1 to clarify any misunderstood terms a_enci1 bat This file should be called with the following format from the DOS prompt while speaking into the handset Hit Control C to quit a_enc1 bat lt standard rate gt lt output ambe speech file gt For example to encode your speech from the handset in to AMBE format at 4 0 Kbps with the file name a_voice bit type a_enc1 bat 17 a_voice bit Refer to Section 4 1 to clarify any misunderstood terms ae_w _f1 bat This file should be called with the following format from the DOS prompt while speaking into the handset Hit Control C to quit ae_w_cf1 bat lt input ambe configuration file gt lt output ambe speech file gt For example to encode your speech from the handset in to AMBE format with file name a_v_cfg bit using the custom data rate specified in the file cfg bit type ae_w_cf1 bat cfg bit a_v_cfg bit Refer to Section 4 1 to clarify any misunderstood terms page 13 Visit us at www dvsinc com Confidential Proprietary Subject to Change PC 2000 Vocoder Board User s Manual Version 1 1 Format n Speech Rate FEC Rate Total Rate Total Rate bps Speech Rate bps FEC Rate bps n 2400 2400 0 0 2350 50 5 3600 3600 0 1 3350 250 11 4000 4000 0 15 3750 250 14 4800 0 3 4550 250 7
17. he Advanced Multi Band Excitation AMBE voice compression algorithm DVSI s AMBE 2000 Vocoder Chip is an extremely flexible high performance vocoder The AMBE 2000 Vocoder Chip provides superior voice quality at low data rates and a high degree of flexibility in selecting the speech and FEC data rates in 50 bps increments from 2 0 Kbps to 9 6 Kbps It provides a real time full duplex implementation of the standard setting AMBE voice compression technology This technology patented by DVSI has been proven to outperform CELP and other competitive technologies Numerous evaluations have shown its ability to provide performance equal to today s digital cellular systems at under half the data rate The AMBE voice compression algorithm is used in applications throughout the world including the next generation of digital mobile communication systems 1 2 PC 2000 Features High Quality Low Data Rate Speech Coding Real Time Extremely Flexible Bit Rate Selection Encode Decode PC based files Encode Decode with Handset Windows 98 Compatible Plug and Play PCI Card Design 1 3 AMBE 2000 Vocoder Chip Features High Quality Low Data Rate Speech Coding DVSI s Full Duplex AMBE Voice Coder Supports Data Rates of 2 0 Kbps to 9 6 Kbps in 50 bps increments User Selectable Forward Error Correction rates Viterbi Decoder rate 1 4 or more 16 Level Soft Decision Decoding Voice Activity Detection VAD Comfort Noise Insertion 16 ms E
18. in connection with this Agreement 11 0 Export 11 1 United States export laws and regulations prohibit the exportation of certain products or technical data received from DVSI under this Agreement to certain countries except under a special validated license As of November 30 1999 the restricted countries are Libya Cuba North Korea Iraq Serbia Taliban in Afghanistan Sudan Burma Yugoslavia and Iran The END USER hereby gives its assurance to DVSI that it will not knowingly unless prior authorization is obtained from the appropriate U S export authority export or re export directly or indirectly to any of the restricted countries any products or technical data received from DVSI under this Agreement in violation of said United States Export Laws and Regulations DVSI neither represents that a license is not required nor that if required it will be issued by the U S Depar ent of Commerce Licensee shall assume complete and sole responsibility for obtaining any licenses required for export purposes 12 0 Governing Law 12 1 This Agreement is made under and shall be governed by and construed in accordance with the laws of the Commonwealth of Massachusetts except that body of law governing conflicts of law If any provision of this Agreement shall be held unenforceable by a court of competent jurisdiction that provision shall be enforced to the maximum extent permissible and the remaining provisions of this Agreement shall remain i
19. n full force and effect page 3 Visit us at www dvsinc com Confidential Proprietary Subject to Change Contents Product Introduction 1 1 General Information 1 2 PC 2000 Features 1 3 AMBE 2000 Vocoder Chip Features 1 4 AMBE 2000 Vocoder Chip Applications PC 2000 Vocoder Board Overview 2 1 Advanced Multi Band Excitation AMBE Vocoder 2 2 PC 2000TM Vocoder Board Basic Operation PC 2000 Vocoder Board Installation and Test 3 1 Hardware Installation 3 2 Software Installation 3 3 Testing Software 4 1 Definition of Terms 4 2 encode1 bat 4 3 decode1 bat 4 4 en_w_cf1 bat 4 5 a enc1 bat 4 6 ae w_cf1 bat Creating AMBE 2000 Configuration Files 5 1 cfg bit DVSI Services and Support Solutions 6 1 Upgrade Software to Version 2 0 6 2 Cool Edit 2000 es XDA A 10 10 10 10 12 12 12 12 13 13 13 15 15 16 16 16 PC 2000 Vocoder Board User s Manual Version 1 1 List of Tables 1 Standard Rate Table for PC 2000 List of Figures 1 PC 2000 layout and jumpers page 5 Visit us at www dvsinc com Confidential Proprietary Subject to Change 14 15 PC 2000 Vocoder Board User s Manual Version 1 1 1 Product Introduction 1 1 General Information The Digital Voice Systems Inc DVS PC 2000 board is a PCI evaluation board for the AMBE 2000 Vocoder Chip The AMBE 2000 M Vocoder Chip contains proprietary software which implements t
20. nsee s possession to DVSI ii have no further rights to any AMBE Voice Compression Software or the Technology without a separate written license from DVSI iii discontinue all use of the AMBE 2000 Vocoder Chips and or PC 2000 Vocoder Boards 5 0 Payments 5 1 In consideration of the materials of the PC 2000 Vocoder Board and in consideration of the license and rights in the AMBE Voice Compression Software granted by DVSI and in consideration of DVSI s performance of its obligations hereunder END USER agrees to pay to DVSI the fee specified in DVSI s invoice 6 0 Proprietary Notices 6 1 END USER shall not remove any copyright or proprietary notice on the AMBE 2000 Vocoder Chip or on the AMBE Voice Compression Software and or PC 2000 Vocoder Board 7 0 Proprietary Information 7 1 The parties agree that the AMBE Voice Compression Software and or PC 2000 Vocoder Board shall be considered Proprietary Information 7 2 Except as otherwise provided in this Agreement END USER shall not use disclose make or have made any copies of the Proprietary Information in whole or in part without the prior written consent of DVSI 8 0 Limited Warranty 8 1 DVSI warrants the PC 2000 Vocoder Board to be free from defects in materials and workmanship under normal use for a period of ninety 90 days from the date of delivery 8 2 Except as stated in Section 7 1 the PC 2000 Vocoder Board is provided as is witho
21. ut warranty of any kind DVSI does not warrant guarantee or make any representations regarding the use or the results of the use of the Voice Codec with respect to its correctness accuracy reliability correctness or otherwise The entire risk as to the results and performance of the Voice Codec and or PC 2000 Vocoder Board is assumed by the END USER After expiration of the warranty period END USER and not DVSI or its employees assumes the entire cost of any servicing repair replacement or correction of the Voice Codec and or PC 2000 Vocoder Board 8 3 DVSI represents that to the best of its knowledge it has the right to enter into this Agreement and to grant a license to use the AMBE Voice Compression Software and or PC 2000 Vocoder Board to END USER 8 4 Except as specifically set forth in this Section 7 0 DVSI makes no express or implied warranties including without limitation the warranties of merchantability or fitness for a particular purpose or arising from a course of dealing usage or trade practice with respect to the Voice Codec and or PC 2000 Vocoder Board Some states do not allow the exclusion of implied warranties so the above exclusion may not apply to END USER No oral or written information or advice given by DVSI or its employees shall create a warranty or in any way increase the scope of this warranty and END USER may not rely on any such information or advice The limited warranties under this section
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