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Description: brief Narrowband CELP encoder/decoder.
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Size: 16384 |
Author: suiyinggui |
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Description: G728（LD-CELP）即低时延码激励线性预测，编码实现代码分析-G728 (LD-CELP) ie, low-delay code excited linear prediction coding to achieve code analysis
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Size: 54272 |
Author: 雷有贤 |
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Description: 语音CELP压缩解压源代码（C语音)- Pronunciation CELP compression decompression source code (C pronunciation) -
* 4800 bps CELP Characteristics
*
* Spectrum Pitch Code Book
* ------------- --------------- -----------------
* Update 30 ms 30/4 = 7.5 ms 30/4 = 7.5 ms
* ll=240 lp=60 l=60
*
* Order 10 256 (max) x 60 512 (max) x 60
* 1 gain 1 gain
*
* Analysis Open loop Closed loop Closed loop
* Correlation Modified MSPE MSPE VQ
* 30 ms Hamming VQ, weight=0.8 weight=0.8
* no preemphasis range 20 to 147 shift by 2
* 15 Hz BW exp (w/ fractions) 77 sparsity
*
* Bits per 34 indep LSP index: 8+6+8+6 index: 9*4
* Frame [3444433333] gain(-1,2): 5*4 gain(+/-): 5*4
*
* Bit Rate 1133.3 bps 1600 bps 1866.67 bps
*
* NOTE: The remaining 200 bps are used as follows: 1 bit per frame
* for synchronizatio
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Size: 109568 |
Author: lcd |
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Description: CELP matlab代码,作者：Sourav Mondal-CELP matlab
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Size: 381952 |
Author: 方圆 |
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Description: this a trial code for celp-this is a trial code for celp
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Size: 1024 |
Author: faizan |
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Description: The content is too simple
2.Is not a sourcecode or document
3.lost some files
4.Description is not detailed or not correct
5.Compressed file has password-The content is too simple
2.Is not a sourcecode or document
3.lost some files
4.Description is not detailed or not correct
5.Compressed file has password
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Size: 641024 |
Author: Khoa |
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Description: G.729的全名Code Excited Linear Prediction Model (CELP) and Conjugate-Structure Algebraic CELP (CS-ACELP). 共轭结构-代数码激励线性预测编码.
G.729家族一共包括三个版本G.729, G.729A,G.729B,G.729AB:
G.729 是G.729的第一个版本,
G.729A 相对于G.729简化了算法.
G.729B 给G.729增加了静音压缩的算法.
G.729Ab 给G.729A增加了静音压缩的算法.
G.729属于合成分析(abs)的语音编码方法,这种方法在中低比特率的情况下可得到较好的语音质量.
编码工作于10ms的语音帧上,8K采样率,具有80个样点,,对每一帧提取CELP模型的有关参量(LP滤波器系数,自适应码书和固定码书的指针和增益),这些参量被编码和传送.在解码器中,这些参量被用来恢复激励信号和合成滤波器的参量.语音信号由激励信号通过LP合成滤波器重构得到.
注：8000Hz采样率，16位样本，压缩率为16:1，80个16位样本经过编码后为10个8位编码串；我用G.729a试过，语音还可以，音乐就不行了。另：商业应用G.729每个许可是10美元，一个许可就是一路通话；不知道现在还是不是。
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Size: 298963 |
Author: dmwang1982@163.com |
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Description: G.729的全名Code Excited Linear Prediction Model (CELP) and Conjugate-Structure Algebraic CELP (CS-ACELP). 共轭结构-代数码激励线性预测编码. -Code Excited Linear Prediction Model (CELP) and Conjugate-Structure Algebraic CELP (CS-ACELP
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Size: 38912 |
Author: 曹旭辉 |
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Description: This Celp Codec source.
Celp is low bitrate voice codec.-This is Celp Codec source.
Celp is low bitrate voice codec.
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Size: 1959936 |
Author: c |
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Description: Codebooks for LSPs in narrowband CELP mode.
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Size: 4096 |
Author: lertingson |
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Description: Codebook for excitation in narrowband CELP mode (3200 bps).
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Size: 1024 |
Author: kinsahui |
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Description: Codebook for excitation in narrowband CELP mode (4000 bps).
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Size: 2048 |
Author: kqdiedan |
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Description: Codebook for excitation in narrowband CELP mode (12800 bps).
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Size: 5120 |
Author: luneidai |
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Description: CELP vocoder algorithm
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Size: 1024 |
Author: dearshurik |
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Description: Codebook for high-band excitation in SB-CELP mode (8000 bps with sign).
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Size: 5120 |
Author: puihaigao |
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Description: celp混合激励线性预测的算法实现，可以在matlab直接运行-Mixed Excitation Linear Prediction celp algorithm implementations, can be run directly in matlab
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Size: 11264 |
Author: zhou |
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Description: this code for celp vocoder
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Size: 1965056 |
Author: massoud |
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Description: 提出了一种新的工作于极低码率下的混合激励线性预测(MELP)声码器.该声码器结合了线性预测编码(LPC)和多带激励编码算法的优点,对算法和量化方案重新进行了设计和改造,其主要特征包括改进的基音检测算法、混合的周期脉冲和随机噪声激励、有效的线性谱频率(LSF)参数量化以及激励谱形状表示.非正式主观测试表明,由采用本算法的一个2.4 kb/s编码器所重建的语音质量略优于美国联邦标准4.8 kb/s码激励线性预测编码(CELP)所重建的语音质量.-New Mixed Excitation Linear Prediction Codec at 2.4 kb/s
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Size: 139264 |
Author: 梦转 |
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Description: 是个好东西,给大家共享了,希望对大家有帮助 很好的-Is a good thing, to share, I hope it can help you good
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Size: 4096 |
Author: ZWLEgqrk!75269 |
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Description: Code Excitation Chapter 2
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Size: 69632 |
Author: SpencerD
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