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2000 - VOCODERS

Abstract: VOCODER Architecture of TMS320C67X harvard TMS320C67X vocoder g.729 C6201 TMS320C62X* internal architecture G.729 10ms chip vocoder lpc 10 TMS320C62x
Text: Table 10 . Instruction Size Maximum Vocoder Channels . . . . . . . . . . . . . . . . . . . . . . . . . . , 10 -ms frames. Each frame is divided further into two subframes. LPC is updated once per frame, and , Table 10 . Instruction Size Maximum Vocoder Channels Instruction Size (Kbytes) Vocoder GSM G , Vocoder Benchmarks C6000 TM DSP Applications Philip Baltz ABSTRACT This application report discusses several multichannel vocoder benchmarks run on the TMS320C6000TM DSP platform devices including


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PDF SPRA642 TMS320C62x TMS320C67x C6000 TMS320C6000TM TMS320C6201 C6201) TMS320C6202 C6202) TMS320C6203 VOCODERS VOCODER Architecture of TMS320C67X harvard TMS320C67X vocoder g.729 C6201 TMS320C62X* internal architecture G.729 10ms chip vocoder lpc 10
2004 - lattice codec

Abstract: ST122 gsm circuit diagram project AN1998 GP32 ST100 ST140 VOCODERS voip ST100-DSP
Text: ) vocoder implementation for the ST122 DSP-MCU architecture based on the ETSI standard version 5.0.0 Release 5. This application note provides a detailed description of the ETSI GSM-Half Rate vocoder , vocoder two-way speech service option, program structure, code writing rules, data/program memory , addressed. The application referred to, is the ETSI GSM Half Rate vocoder a low bit rate algorithm for the , THE ETSI GSM ­HALF RATE VOCODER RECOMMENDATION FOR SPEECH COMPRESSION AND DECOMPRESSION


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PDF AN1998 ST122 ST100® 32-bit 128-bit ST100 lattice codec gsm circuit diagram project AN1998 GP32 ST140 VOCODERS voip ST100-DSP
1996 - Linear predictive coding analyzer

Abstract: AD50 IS-54 TLC32044 TMS320C51 TR45 LPC1-LPC10 C.E.L.P 24 v "complementary code"
Text: cellular communications. The VSELP vocoder encodes speech at a bit rate of 7950 bits/second. An additional , 13,000 bits/second. This paper describes only the voice coding portion of the vocoder . A brief , orthogonalized. An open-loop LPC analysis is performed on a frame of speech to derive a set of LPC filter , receiver. The basic blocks in the VSELP coder are: · · · · · · Tenth-order LPC analysis , Sampling rate 8 kHz NF Samples per frame 160 NSF Samples per subframe 40 NP LPC


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PDF TMS320C5x SPRA136 Linear predictive coding analyzer AD50 IS-54 TLC32044 TMS320C51 TR45 LPC1-LPC10 C.E.L.P 24 v "complementary code"
1996 - SPRA136

Abstract: AD50 IS-54 TLC32044 TMS320C51 TR45 motorola rf book "complementary code"
Text: cellular communications. The VSELP vocoder encodes speech at a bit rate of 7950 bits/second. An additional , 13,000 bits/second. This paper describes only the voice coding portion of the vocoder . A brief , orthogonalized. An open-loop LPC analysis is performed on a frame of speech to derive a set of LPC filter , receiver. The basic blocks in the VSELP coder are: · · · · · · Tenth-order LPC analysis , Sampling rate 8 kHz NF Samples per frame 160 NSF Samples per subframe 40 NP LPC


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PDF TMS320C5x SPRA136 SPRA136 AD50 IS-54 TLC32044 TMS320C51 TR45 motorola rf book "complementary code"
1999 - MP-MLQ

Abstract: G.723. c code TMS320C62x TMS320C6000 codec723 TMS320C6000 intrinsics list C6000 G723 simulator encoder decoder cd 7231
Text: 10 . Table 11. Table 12. LPC Computation and Filtering Tables . 10 LSP Calculation and Quantization Tables . 10 Perceptual Filtering and Post Filtering Tables . 10 Excitation Tables ­ ACELP and MP-MLQ , . 10 Multichannel Modifications


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PDF SPRA552A TMS320C6000 C6000 MP-MLQ G.723. c code TMS320C62x codec723 TMS320C6000 intrinsics list G723 simulator encoder decoder cd 7231
1996 - VSELP

Abstract: SPRA136 AD50 IS-54 TLC32044 TMS320C51 TR45 LPC1-LPC10 Vector Control Scheme of a IM "complementary code"
Text: cellular communications. The VSELP vocoder encodes speech at a bit rate of 7950 bits/second. An additional , 13,000 bits/second. This paper describes only the voice coding portion of the vocoder . A brief , orthogonalized. An open-loop LPC analysis is performed on a frame of speech to derive a set of LPC filter , receiver. The basic blocks in the VSELP coder are: · · · · · · Tenth-order LPC analysis , Sampling rate 8 kHz NF Samples per frame 160 NSF Samples per subframe 40 NP LPC


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PDF TMS320C5x SPRA136 VSELP SPRA136 AD50 IS-54 TLC32044 TMS320C51 TR45 LPC1-LPC10 Vector Control Scheme of a IM "complementary code"
1996 - code excited linear predictive

Abstract: LPC1-LPC10 spra136 Zero-state Response vector quantization vocoder lpc 10 ASSP-27 TLC32044 IS-54 TMS320C51
Text: cellular communications. The VSELP vocoder encodes speech at a bit rate of 7950 bits/second. An additional , 13,000 bits/second. This paper describes only the voice coding portion of the vocoder . A brief , orthogonalized. An open-loop LPC analysis is performed on a frame of speech to derive a set of LPC filter , receiver. The basic blocks in the VSELP coder are: · · · · · · Tenth-order LPC analysis , Sampling rate 8 kHz NF Samples per frame 160 NSF Samples per subframe 40 NP LPC


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PDF TMS320C5x SPRA136 code excited linear predictive LPC1-LPC10 spra136 Zero-state Response vector quantization vocoder lpc 10 ASSP-27 TLC32044 IS-54 TMS320C51
1996 - LPC-10e

Abstract: CELP RELP MELP Vocoder vocoder g.729 celp coding FS1016 IS-54 TMS320 G-722 vocoder lpc 10 vocoder
Text: L&H DSPSE DSPSE DSPSE HotHaus L&H.smc350 L&H.smc350 Low-Delay CELP Vocoder Low-Memory CELP Vocoder Multi-Rate CELP Vocoder Variable-Rate CELP Coding C50 C3x/C4x C2x/C5x C5x C5x C30 , USFS 1016 CELP Vocoder USFS 1016 CELP Vocoder Code-Excited Linear Prediction (CELP)-USFS 1016 , Data Memory Program Memory TMS320 Software Cooperative Resource Guide Vocoder Algorithms , 10 /channel 0.48 4.7 19 14.5 17 16.7 13.6 15.3/17.6/18.1 17.8 10.2514/12.622


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PDF smc350 TMS320 60-MHz 721/G LPC10e LPC-10e CELP RELP MELP Vocoder vocoder g.729 celp coding FS1016 IS-54 G-722 vocoder lpc 10 vocoder
2004 - RPE-LTP

Abstract: AN1860 GSM circuit diagram project ST122 ST100 dsp GP32 RPE 113 gsm module with microcontroller ST140 ST100
Text: 06.10 Full Rate vocoder . This application note also attempts to provide a description of the GSM 06.10 Full Rate vocoder multi-channel implemented solution, API and its performances on to the , based algorithms execution. The topics include GSM 06.10 Full Rate vocoder speech coding theory , and API description. The application referred to is the GSM 06.10 Full Rate vocoder , the very first vocoder included into the GSM systems. The specifications regarding the use of this vocoder inside a GSM


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PDF AN1860 ST122 ST100® 32-bit ST100 RPE-LTP AN1860 GSM circuit diagram project ST100 dsp GP32 RPE 113 gsm module with microcontroller ST140
1996 - LPC-10e

Abstract: vocoder lpc 10 VSELP 72248
Text: 105 100 68 50 0 5 LPC-10 may be used for some diverse signal applications providing a , located in the lower half of this 20-KHz band. Human speech rolls off between 7 and 10 KHz, and , process of generating speech from the chosen parameters is called synthesis. Vocoder sound quality , Parametric Coders Non-parametric Coders Vocoder Excitation Model Impulse Generator White Noise Generator Vector Codebook Vocal Tract Model Step Adapt LPC Analysis 1 A(Z) (e.g., CELP


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PDF 20-KHz LPC-10e vocoder lpc 10 VSELP 72248
1996 - CELP RELP MELP Vocoder

Abstract: vocoder lpc 10 LPC-10e G-722 FS1016 g.723 OROS-CD16 RELP IS-54 TMS320
Text: L&H DSPSE DSPSE DSPSE HotHaus L&H.smc350 L&H.smc350 Low-Delay CELP Vocoder Low-Memory CELP Vocoder Multi-Rate CELP Vocoder Variable-Rate CELP Coding C50 C3x/C4x C2x/C5x C5x C5x C30 , USFS 1016 CELP Vocoder USFS 1016 CELP Vocoder Code-Excited Linear Prediction (CELP)-USFS 1016 , Data Memory Program Memory TMS320 Software Cooperative Resource Guide Vocoder Algorithms , 10 /channel 0.48 4.7 19 14.5 17 16.7 13.6 15.3/17.6/18.1 17.8 10.2514/12.622


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PDF smc350 TMS320 60-MHz 721/G LPC10e CELP RELP MELP Vocoder vocoder lpc 10 LPC-10e G-722 FS1016 g.723 OROS-CD16 RELP IS-54
q4400

Abstract: No abstract text available
Text: nw 1 Advanced Product Information Q ualcoaaaa Q4400 VARIABLE RATE VOCODER FEATURES â , ( 100 R incon Ave., Suite DESCRIPTION The QUALCOMM Q4400 Variable Rate Vocoder is a single-chip , proprietary vocoder algorithm known as the QUALCOMM Codebook Excited Linear Predictive code (QCELP). QCELP is an enhancement of a basic LPC algorithm providing near toll-quality speech. The Q4400 offers the , via this processor interface. I Q4400 VARIABLE RATE VOCODER Advanced Product Information


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PDF Q4400 84-pin
2004 - evrc

Abstract: ST122 IS-95 MS support evrc AN1997 vocoder implementation ST100 dsp Viterbi Decoder GP32 ST100 ST140
Text: channel being processed ( LPC tables, .). For the EVRC vocoder , the multi-channel feature has been , description of the Enhanced Variable Rate Coding (EVRC) vocoder , Speech Service Option 3. This application note also provides a detailed description of the EVRC vocoder multi-channel implemented solution and , . The topics include an ST122 overview, the EVRC vocoder , an enhanced variable rate, two-way speech , Program Interface (API) and performance evaluation. The application referred to, is the EVRC vocoder


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PDF AN1997 IS-127 ST122 ST100® 32-bit ST122 ST100 evrc IS-95 MS support evrc AN1997 vocoder implementation ST100 dsp Viterbi Decoder GP32 ST140
2001 - motorola application note an-1

Abstract: MPY32 neg_norm_l DIV32 G729A SC140 acelp
Text: 1 2 Overview of Several Vocoder Recommendations . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . 10 4.2.5 Split Summation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5 Implementation Differences . . . . . . . , in linear prediction coding ( LPC ) to compute the linear prediction filter coefficients in the , used in LPC is presented in Section 3. Section 4 describes C and assembly implementation and


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PDF SC140 AN2197/D 3fff0000, motorola application note an-1 MPY32 neg_norm_l DIV32 G729A SC140 acelp
2001 - AN2197

Abstract: G729A SC140
Text: prediction coding ( LPC ) to compute the linear prediction filter coefficients in speech encoders. The , 1.3 1.4 2 3 3.1 3.2 4 4.1 4.2 4.3 5 6 Vocoder Recommendations , .13 Vocoder Recommendations 1 Vocoder Recommendations Low bit rate speech coders used in , ITU-T Recommendations G.723-1, G.729, and G.729A, as well as the ETSI GSM EFR vocoder . 1.1 ITU-T , component. Each frame is then divided into four sub-frames of 60 samples each. A 10th order LPC filter is


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PDF AN2197 SC140/SC1400 AN2197 G729A SC140
2001 - motorola application note an-1

Abstract: alps encoder code excited linear predictive mark levinson alps encoder 12 linear predicting coding implementation hardware G729A SC140
Text: . . . . . . . . . . . . . . . . . 1 2 Overview of Several Vocoder Recommendations . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.2.5 Split Summation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5 , coding ( LPC ) to compute the linear prediction filter coefficients in the implementations of speech , ], and ETSI GSM EFR [4] vocoders. Background theory for the Levinson-Durbin algorithm used in LPC is


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PDF SC140 AN2197/D motorola application note an-1 alps encoder code excited linear predictive mark levinson alps encoder 12 linear predicting coding implementation hardware G729A SC140
2000 - acelp

Abstract: Maximum Likelihood Quantization G.723 C6000 G723 TMS320C6000
Text: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 , . 13 List of Tables Table 1. LPC Computation and Filtering Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Table 2. LSP Calculation and Quantization Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 , . . . . . . . . . . . . . . . . 10 Table 4. Excitation Tables ­ ACELP and MP-MLQ . . . . . . . . .


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PDF SPRA552B- TMS320C62x C6000 acelp Maximum Likelihood Quantization G.723 G723 TMS320C6000
2001 - alps encoder

Abstract: mark levinson perceptual audio AN2197 G729A MSC7116 SC140 neg_norm_l survey acelp
Text: the StarCoreTM SC140/SC1400 cores. This algorithm is used in linear prediction coding ( LPC ) to , 3.1 3.2 4 4.1 4.2 4.3 5 6 Vocoder Recommendations .2 , the United States prior to September 2010: MSC7116 AN2197 Rev. 1, 1/2005 Vocoder Recommendations Vocoder Recommendations Low bit rate speech coders used in digital communications systems , G.723-1, G.729, and G.729A, as well as the ETSI GSM EFR vocoder . 1.1 ITU-T Recommendation G


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PDF SC140/SC1400 MSC7116 alps encoder mark levinson perceptual audio AN2197 G729A MSC7116 SC140 neg_norm_l survey acelp
2002 - 79AB

Abstract: G729 MSC8101ADS SC140 G729A
Text: vocoder to code/decode active voice frames. This algorithm makes a decision on voice activity every 10 ms in correlation with the frame size of the G.729/G.729A vocoder . The output of the VAD module is , 3 Results . 10 4 References . 11 This application note , introducing a pseudo-white excitation signal of a controlled level into interpolated LPC filters, in the same , and LPC filters are obtained from the previous SID information. 2 Implementation Process The


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PDF AN2261/D 729AB SC140 729AB 729AB. 729AB) 79AB G729 MSC8101ADS G729A
2002 - CELP RELP MELP Vocoder

Abstract: MELP 2400 AMBE-2000 AMBE-1000 AMBE software AMBE2000 AMBE-2000TM PC-2000 AMBE DTMF encoder vocoder lpc 10
Text: ,ECELP, MP-MLQ, and LPC-10 , etc. 2.2 PC-2000TM Vocoder Board Basic Operation DVSI grants a license , Operation 8 3. PC-2000TM Vocoder Board Installation and Test 10 3.1 Hardware Installation , PC-2000TM Vocoder Board User's Manual Version 1.1 PC-2000TM Vocoder Board User's Manual Version 1.1 PC-2000TM Vocoder Board User's Manual Version 1.1 April, 2002 Copyright , 2002 Digital , -2000TM Vocoder Board and AMBE-2000TM Vocoder Chip are registered trademarks of Digital Voice Systems, Inc. Other


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PDF PC-2000TM PC-2000TM com/software/pc2000/pc2000 pc2000 \PC-2000 CELP RELP MELP Vocoder MELP 2400 AMBE-2000 AMBE-1000 AMBE software AMBE2000 AMBE-2000TM PC-2000 AMBE DTMF encoder vocoder lpc 10
1996 - LPC-10e

Abstract: TMS320C20 LPC10e
Text: the first implementation of LPC -10e vocoder algorithm on a single fixed-point TMS320C20 in 1986


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PDF TMS320C2x, TMS320C3x, TMS320C4x, TMS320C5x LPC-10e TMS320C20 LPC-10e LPC10e
2002 - sps 6580

Abstract: acelp motorola application notes G729 SC140 g729B
Text: voice activates the vocoder to code/decode active voice frames. This algorithm makes a decision on voice activity every 10 ms in correlation with the frame size of the G.729. The output of the VAD , level into interpolated LPC filters, in the same way that 2 Implementation Process the decoder produces active speech by filtering the decoded excitation. The excitation level and LPC filters are , ACELP_Codebook same Az_lsp same Chebps_ 10 same Common Functions Diffs Function Name Copy


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PDF AN2278/D SC140 sps 6580 acelp motorola application notes G729 g729B
2000 - SPRU198

Abstract: TMS320C6000 intrinsics list SPRU352 SPRU360 TMS320C6000 C6000 32976 TMS320C62x acelp SPRA565B
Text: 10 5.4 Program Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6 Performance Results . . . . . . . . . . , . . . . 10 7 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , the GSM-EFR . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Performance Estimation of GSM-EFR With C62x DSP Compiler Version 3.00 . . . . . . . . . . . . 10 TI is a trademark of Texas


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PDF SPRA565B TMS320C62x C6000 SPRU198 TMS320C6000 intrinsics list SPRU352 SPRU360 TMS320C6000 32976 acelp
2000 - Implementation of G.729 on TMS320C54x

Abstract: TMS320C54x SPEECH PROCESSING FRCT CELP on TMS320C54x vocoder g.729 block diagram of of TMS320C54X code excited linear predictive DIAGRAM OF SPEECH COMPRESSION E1 PCM encoder 200H
Text: Allocation of the G.729 CS-ACELP 8-kbit/s Vocoder ( 10 -ms frame) Parameter Codeword Subframe1 , frame is 10 ms long (80 samples). The vocoder should complete any encoding and decoding of the previous , that the computational time is reduced to 10 ms or less. The vocoder was tested using voice samples , this project is to implement the ITU-U G.729 8-kbit/s Vocoder (Voice Coder). The ANSI C code is , assembly language for real-time implementation. The implemented vocoder should be tested using real-time


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PDF SPRA656 TMS320C54x TMS320C54x Implementation of G.729 on TMS320C54x TMS320C54x SPEECH PROCESSING FRCT CELP on TMS320C54x vocoder g.729 block diagram of of TMS320C54X code excited linear predictive DIAGRAM OF SPEECH COMPRESSION E1 PCM encoder 200H
2002 - g.729 ic

Abstract: g729 Optimization motorola application notes DIAGRAM OF SPEECH COMPRESSION G729 SC140 g729B starcore assembly
Text: or absence of voice. Detection of voice activates the vocoder to code/decode active voice frames. This algorithm makes a decision on voice activity every 10 ms in correlation with the frame size of , a pseudo-white excitation signal of a controlled level into interpolated LPC filters, in the same , excitation. The excitation level and LPC filters are obtained from the previous SID information. 2 , ACELP_Codebook same Az_lsp same Chebps_ 10 same Common Functions Diffs Function Name Copy


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PDF AN2278/D SC140 g.729 ic g729 Optimization motorola application notes DIAGRAM OF SPEECH COMPRESSION G729 g729B starcore assembly
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