📄 files.txt

📁 4.8k/s速率FS1016标准语音压缩源码
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This is a description of all the source code files in CELP 3.3.----------acb_code.c----------	ACBGainEncode - encode and quantize ACB gain for various			quantizer types	ACBGainDecode -	decode ACB gain from table----------acb_parm.c----------	CalcACBParms -	Find ACB gain and error (match score)	CalcAdaptConv -	Calculate and save convolution of truncated impulse 			response.	EndCorrectAdapt - End correct the convulution sum	ReplicateShortToFull - Replicate the short adaptive codeword to the 			full codeword	CalcCorEngAdapt - Calculate Correlation and Energy	CompGainErrAdapt - Compute gain and error-------adapt.c-------	AdaptiveAnalysis - Subframe adaptive codebook search	CalcPointers - Calculate allowable pointer range	TopMatch - Find pointer to top (MSPE) match score (BestDelayPtr)			search for best match score (max -error term)	SelectDelay - Select shortest delay of 2, 3, or 4 submultiples			if its match is within 1 dB of MSPE to favor			smooth "pitch"	Neighborhood - Search BestDelayPtr's neighboring delays (to be used with 			earlier stages of searching).  Find gain and match 			score for neighboring delays and find best neighborhood 			match (could use end-point correction on unity spaced delays)	CalcIntAdaptParms - Calculate gain and match score for integer adaptive delays	CalcFracAdaptParms - Calculate gain and match score for fractional adaptive delays	FindAdaptResidual - Find residual after adaptive analysis----------analysis.c----------	analysis - CELP analysis	CreateSubFrame - Create subframe vector from past and current samples	FindImpulseResponse - Compute impulse response with direct form filter	UpdateEverything - Update adaptive parameters for next subframe	-------bwexp.c-------	BWExpand - Bandwidth expansion of LPC predictor coefficients------celp.c------	celp (main) - Codebook excited linear predictor (main routine)----------celp_sup.c----------	ham - creates hamming window---------channel.c---------	Channel - CELP channel-----cli.c-----	cli - UNIX Command line interface.	ShortUsage - Prints out a short usage message describing how to call			the program	Usage - Prints out a long usage message describing how to call			the program and all its options	Parse - Reads the string of characters passed in and sets the			appropriate flags.	GetNewArgs - Opens and reads the parameter file and creates a new 			argument array and new number of arguments	AssignVal - Reads the opened parameter file and assigns the correct			values to the new argument array.----------code_lsf.c----------	QuanLSF - Quantize line spectral frequencies	CalcLSFFreq - Calculate LSFs from LSPs using input frequency	InitLSFQuant - Initialize Quantized LSFs	CheckMono - Check frequencies indices for monotonicity	CorrectNonMono - Correct index for minimum error if nonmonotonic	AssignLSFFreqs - Correct index for minimum error if nonmonotonic	UnquanLSF - Independent nonuniform scalar lsf decoder	QuantizeLSF - Nearest output level scalar quantizer----------codeparm.c----------	EncodeParameters - Encode and Pack CELP parameters	DecodeParameters - Decode and Unpack CELP parameters	Encode - Encode CELP parameters	Decode - Decode CELP parameters	Pack - Pack CELP parameters	Unpack - Unpack CELP parameters	ADelayEncode - Encode the Adaptive Delay	ACBDelayDecode - Decode the Adaptive Delay	FS1016Encode - Translate from bit structure to FS1016 compatible array	FS1016Decode - Translate to bit structure from FS1016 compatible array----------con_adap.c----------	ConstructAdaptCW - Adaptive VQ (n-taps, where n = 0, ..., 3)			"self-excited" or "vq" or "adaptive code book"----------con_stch.c----------	CalcStoch - Calculate Stochastic codebook contribution to synthesis			from code book index and gain----------conv_cor.c----------	ConvCor - Find codeword gain and error (TERNARY CODE BOOK ASSUMED!)	CalcStochConv - Calculate and save convolution of codeword with 		truncated impulse response	EndCorrectStoch - End correct the convolution sum	CalcCorEngStoch - Calculate correlation and energy	CompGainErrStoch - Compute gain and error-------delay.c-------	delay - Time delay a bandlimited signal of either 8 or 40 points			using point-by-point recursion	GenHam - Generate Hamming windowed sinc interpolating function	quan_frac - Quantize the fractional pitch	Resample - Upsample and select appropriate samples to resample			at fractional delay	sinc - Calculate sinc funtion of input----------do_pfilt.c----------	do_pfilt	do_pfilt_dynamic - pole filter - given a filter structure			do_pfilt uses static coefficients			do_pfilt_dynamic uses changing coefficients----------do_zfilt.c----------	do_zfilt	do_zfilt_dynamic - pole filter - given a filter structure			do_zfilt assumes static coefficients			do_zfilt_dynamic assumes changing coefficients-------error.c-------	ErrorEncode - CELP error encoding	ErrorDecode - CELP error decoding---------filters.c---------	HPF_Speech - High pass filter input speech	HPF_OutSpeech - High pass filter output speech	FilterImpulseResponse - Filter Impulse Response with varying 			coefficients and no history from past frames---------hamming.c---------	Hamming - Implement Hamming (15,11) code---------hexline.c---------	puthex  - Input an array of bits and number of bits and the			program returns a pointer to a bitstream.	gethex  - Input a pointer to a bitstream and number of bits,		program returns an array of bits.--------interp.c--------	Interpolate - Interpolation of LSFs	InterpolateSubFrame - Interpolation one LSF subframe	AnalCheckForMonotonicity - Check for nonmonotonic LSFs within 		interpolated matrix	SynthCheckForMonotonicity - Check for nonmonotonic LSFs----io.c----	IO_read - Read a frame of input data	IO_write - Write a frame of output speech	WriteChannel - Write a frame of CELP bitstream	ReadSpeech - Read a frame of input speech	ReadChannel - Read a frame of CELP bitstream---------lp_anal.c---------	LP_Analysis - Linear Predictive analysis	ApplyWindow - Apply a Hamming Window to input speech	AutoCor - Calculate the autocorrelations for a frame of speech	ACtoPC - Calculate the Predictor Coefficients for a frame of speech	Durbin - performs the classical Durbin recursion	ACtoRC - Schur recursion to do autocorrelation analysis.			Converts autocorrelation sequence to reflection 			coefficients.	HighFreqCorrect - Perform high frequency correction on input	RCtoPC - convert reflection coefficients into lpc coefficients--------lp_syn.c--------	LP_Synthesis - LP Filter input excitation with input LSFs---------lsftopc.c---------	LSFtoPC - convert line spectral frequencies to predictor coefficients----------makefilt.c----------	makefilt	makefilt_dynamic - defines and returns a filter structure			makefilt makes a filter with static coefficients			makefilt_dynamic makes a filter with changing 			coefficients------mark.c------	mark - display prompts to indicate processing			(output to standard error)---------mexcite.c---------	ModifiedExcitation - Modify the stochastic code book excitation gain----------movarray.c----------	MoveArray - copy real array to another array---------pctolsf.c---------	PCtoLSF  - Compute LSF from predictor polynomial.--------pctorc.c--------	pctorc - Convert from lp-polynomial to reflection coefficients.----------postfilt.c----------	PostFilter - Filter input signal----------scb_code.c----------	SCBGainEncode - encode and quantize code book gain	SCBGainDecode - decode code book gain from the quantized gain----------setarray.c----------	SetArray - initialize a real array to a real value-------setup.c-------	setup - CELP setup	CheckOptions - Check the options set by the user and insure that there			are no problems.----------showdata.c----------	ShowData - Save data to disk in a format that can be later used		by graphical or other programs.  	save_float - Save data to disk in floating point format	save_int - Save data to disk in integer format	save_short - Save data to disk in short integer format	float2short - Convert data to short integer format from		floating point data.	float2ascii - Convert data to ascii format from		floating point data and write to a file.	int2ascii - Convert data to ascii format from		integer data and write to a file.--------smooth.c--------	Smooth - Smooth parameters when error conditions indicate it is 			necessary	smoothPDelay - smooth PDelay values	smoothStochGain - smooth StochGain values	smoothAdaptGain - smooth AdaptGain value-------stoch.c-------	StochasticAnalysis - Find optimal MSPE excitation code word	CalcStochGain - Find gain and -error term for each codeword			and search for best code word (max -error term)-------synth.c-------	Synthesis - CELP synthesis	SquelchTest - Test for clipping on input speech	clip - Determine if speech is clipped----------variance.c----------	variance - calculates variance of the input array--------wrapup.c--------	wrapup - finish details, close files, etc.
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