Programmer Guide/Command Reference/EVAL/cvphase - Revision history

193.171.195.48 at 09:30, 21 April 2011

2011-04-21T09:30:08Z

← Older revision		Revision as of 11:30, 21 April 2011
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	{{DISPLAYTITLE:{{SUBPAGENAME}}}}		{{DISPLAYTITLE:{{SUBPAGENAME}}}}
	Convert phase spectrum.		Convert phase spectrum.

	;Usage:<code>cvphase(<var>p</var>, <var>ifmt</var>, <var>ipos</var>, <var>ibin</var>, <var>ofmt</var>, <var>opos</var>, <var>obin</var>, <var>nbin</var>, <var>rev</var>, <var>sr</var>, <var>len</var>, <var>hop</var>)</code>		;Usage:<code>cvphase(<var>p</var>, <var>ifmt</var>, <var>ipos</var>, <var>ibin</var>, <var>ofmt</var>, <var>opos</var>, <var>obin</var>, <var>nbin</var>, <var>rev</var>, <var>sr</var>, <var>len</var>, <var>hop</var>)</code>
	:;<var>p</var>: original phase spectrum at frame ''ipos'' and in the format ''ifmt''; ''p'' is a vector with ''n'' values		:;<var>p</var>: original phase spectrum at frame ''ipos'' and in the format ''ifmt''; ''p'' is a vector with ''n'' values

Toni at 13:07, 20 April 2011

2011-04-20T13:07:48Z

← Older revision		Revision as of 15:07, 20 April 2011
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	#idt := eval $#ifmt == 2 ? 0 : $#dp * $#ipos		#idt := eval $#ifmt == 2 ? 0 : $#dp * $#ipos
	#odt := eval $#ofmt == 2 ? 0 : $#dp * $#opos		#odt := eval $#ofmt == 2 ? 0 : $#dp * $#opos
	#r := eval init($#nbin,1)		#r := eval init($#nbin,1,0)
	for #i := 0 to $#i < $#nbin step #i := int $#i+1		for #i := 0 to $#i < $#nbin step #i := int $#i+1
	#z := eval ($#p[$#i] + pi + ($#i+$#ibin)$#idt) % (2pi)		#z := eval ($#p[$#i] + pi + ($#i+$#ibin)$#idt) % (2pi)

Toni at 13:06, 20 April 2011

2011-04-20T13:06:13Z

← Older revision		Revision as of 15:06, 20 April 2011
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	Convert phase spectrum.		Convert phase spectrum.

	;Usage:<code>cvphase(<var>p</var>, <var>ifmt</var>, <var>ipos</var>, <var>ibin</var>, <var>ofmt</var>, <var>opos</var>, <var>obin</var>, <var>nbin</var>, <var>~~orev~~</var>, <var>sr</var>, <var>len</var>, <var>hop</var>)</code>		;Usage:<code>cvphase(<var>p</var>, <var>ifmt</var>, <var>ipos</var>, <var>ibin</var>, <var>ofmt</var>, <var>opos</var>, <var>obin</var>, <var>nbin</var>, <var>rev</var>, <var>sr</var>, <var>len</var>, <var>hop</var>)</code>
	:;<var>p</var>: original phase spectrum at frame ''ipos'' and in the format ''ifmt''; ''p'' is a vector with ''n'' values		:;<var>p</var>: original phase spectrum at frame ''ipos'' and in the format ''ifmt''; ''p'' is a vector with ''n'' values
	:;<var>ifmt, ofmt</var>: input and output phase format (~~'''0''' = differences,~~ '''1''' = locked phase, '''2''' = phase (not locked))		:;<var>ifmt, ofmt</var>: input and output phase format ('''1''' = locked phase, '''2''' = normal phase (not locked))
	:;<var>ipos, opos</var>: input and output frame index		:;<var>ipos, opos</var>: input and output frame index
	:;<var>ibin, obin</var>: input and output spectral bin		:;<var>ibin, obin</var>: input and output spectral bin
	:;<var>nbin</var>: number of spectral bins to convert		:;<var>nbin</var>: number of spectral bins to convert
	:;<var>rev</var>:reverse output phase (0=no, 1=yes)		:;<var>rev</var>:reverse output phase (0=no, 1=yes)
	:;<var>sr</var>:signal sampling rate		:;<var>sr</var>:signal sampling rate in Hz; this argument is currently not used but must be supplied!
	:;<var>len, hop</var>:transformation length and hopsize (in samples) used for analysis and resynthesis		:;<var>len, hop</var>:transformation length and hopsize (in samples) used for analysis and resynthesis
	;Description:		;Description: This function replaces the following macro code
	;Result:A vector ''r'' with ''nbin'' values, containing the converted phase values.		<pre>
			[macro cvphase arg: #p #ifmt #ipos #ibin #ofmt #opos #obin #nbin #rev #sr #len #hop]
			#dp := eval 2 * pi * $#hop / $#len
			#idt := eval $#ifmt == 2 ? 0 : $#dp * $#ipos
			#odt := eval $#ofmt == 2 ? 0 : $#dp * $#opos
			#r := eval init($#nbin,1)
			for #i := 0 to $#i < $#nbin step #i := int $#i+1
			#z := eval ($#p[$#i] + pi + ($#i+$#ibin)$#idt) % (2pi)
			if $#rev == 1 #z := eval -$#z
			$#r[$#i] := eval ($#z - ($#i+$#obin)$#odt) % (2pi) - pi
			end
			exit 1 set $#r
			</pre>
			;Result:A vector ''r'' with ''nbin'' values, containing the converted phase values.
			:Note: The input and output phase values are in the range <code>-pi..pi</code>.
	;See also: [[../hcomb\|hcomb]], [[../optmm\|optmm]], [[Programmer_Guide/BScript#MulAc\|script application '''MulAc''']]		;See also: [[../hcomb\|hcomb]], [[../optmm\|optmm]], [[Programmer_Guide/BScript#MulAc\|script application '''MulAc''']]

	[[../#Functions\|<function list>]]		[[../#Functions\|<function list>]]

Toni at 12:46, 20 April 2011

2011-04-20T12:46:12Z

← Older revision		Revision as of 14:46, 20 April 2011
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	;Usage:<code>cvphase(<var>p</var>, <var>ifmt</var>, <var>ipos</var>, <var>ibin</var>, <var>ofmt</var>, <var>opos</var>, <var>obin</var>, <var>nbin</var>, <var>orev</var>, <var>sr</var>, <var>len</var>, <var>hop</var>)</code>		;Usage:<code>cvphase(<var>p</var>, <var>ifmt</var>, <var>ipos</var>, <var>ibin</var>, <var>ofmt</var>, <var>opos</var>, <var>obin</var>, <var>nbin</var>, <var>orev</var>, <var>sr</var>, <var>len</var>, <var>hop</var>)</code>
	:;<var>p</var>: original phase spectrum at frame ''ipos'' and in the format ''ifmt''; ''p'' is a vector with ''n'' values		:;<var>p</var>: original phase spectrum at frame ''ipos'' and in the format ''ifmt''; ''p'' is a vector with ''n'' values
	:;<var>ifmt, ofmt</var>: input and output phase format ('''0''' = differences, '''1''' = locked phase,		:;<var>ifmt, ofmt</var>: input and output phase format ('''0''' = differences, '''1''' = locked phase, '''2''' = phase (not locked))
	'''2''' = phase (not locked))
	:;<var>ipos, opos</var>: input and output frame index		:;<var>ipos, opos</var>: input and output frame index
	:;<var>ibin, obin</var>: input and output spectral bin		:;<var>ibin, obin</var>: input and output spectral bin

Toni at 12:46, 20 April 2011

2011-04-20T12:46:00Z

← Older revision		Revision as of 14:46, 20 April 2011
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	;Usage:<code>cvphase(<var>p</var>, <var>ifmt</var>, <var>ipos</var>, <var>ibin</var>, <var>ofmt</var>, <var>opos</var>, <var>obin</var>, <var>nbin</var>, <var>orev</var>, <var>sr</var>, <var>len</var>, <var>hop</var>)</code>		;Usage:<code>cvphase(<var>p</var>, <var>ifmt</var>, <var>ipos</var>, <var>ibin</var>, <var>ofmt</var>, <var>opos</var>, <var>obin</var>, <var>nbin</var>, <var>orev</var>, <var>sr</var>, <var>len</var>, <var>hop</var>)</code>
	:<var>p</var>: original phase spectrum at frame ''ipos'' and in the format ''ifmt''; ''p'' is a vector with ''n'' values		:;<var>p</var>: original phase spectrum at frame ''ipos'' and in the format ''ifmt''; ''p'' is a vector with ''n'' values
	:<var>ifmt, ofmt</var>: input and output phase format		:;<var>ifmt, ofmt</var>: input and output phase format ('''0''' = differences, '''1''' = locked phase,
	::*'''0''' = differences		'''2''' = phase (not locked))
	::*'''1''' = locked phase		:;<var>ipos, opos</var>: input and output frame index
	::*'''2''' = ~~unlocked~~ phase		:;<var>ibin, obin</var>: input and output spectral bin
	:<var>ipos, opos</var>: input and output frame index		:;<var>nbin</var>: number of spectral bins to convert
	:<var>ibin, obin</var>: input and output spectral bin		:;<var>rev</var>:reverse output phase (0=no, 1=yes)
	:<var>nbin</var>: number of spectral bins to convert		:;<var>sr</var>:signal sampling rate
	:<var>rev</var>:reverse output phase (0=no, 1=yes)		:;<var>len, hop</var>:transformation length and hopsize (in samples) used for analysis and resynthesis
	:<var>sr</var>:signal sampling rate
	:<var>len</var>:transformation length ~~(in samples) used for analysis~~ and ~~resynthesis~~
	~~:<var>len</var>:~~hopsize (in samples) used for analysis and resynthesis
	;Description:		;Description:
	;Result:A vector ''r'' with ''nbin'' values, containing the converted phase values.		;Result:A vector ''r'' with ''nbin'' values, containing the converted phase values.

Toni at 12:44, 20 April 2011

2011-04-20T12:44:42Z

← Older revision		Revision as of 14:44, 20 April 2011
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	{{DISPLAYTITLE:{{SUBPAGENAME}}}}		{{DISPLAYTITLE:{{SUBPAGENAME}}}}
	~~Smooth multiplier matrix using a two dimensional convolution~~.		Convert phase spectrum.

	;Usage:<code>~~optmm~~(<var>~~mflag~~</var>, <var>a</var>, <var>w</var>)</code>		;Usage:<code>cvphase(<var>p</var>, <var>ifmt</var>, <var>ipos</var>, <var>ibin</var>, <var>ofmt</var>, <var>opos</var>, <var>obin</var>, <var>nbin</var>, <var>orev</var>, <var>sr</var>, <var>len</var>, <var>hop</var>)</code>
	:;<var>~~mflag~~</var>:~~selects~~ the ~~method used to modify the multiplier matrix; currently only the method~~ ''~~mflag~~''='''0''' ~~is implemented~~		:<var>p</var>: original phase spectrum at frame ''ipos'' and in the format ''ifmt''; ''p'' is a vector with ''n'' values
	:;<var>a</var>:~~The multiplier matrix. Each row~~ ''a''~~[i] contains one linear filter spectrum~~ to ~~be applied to a~~ signal.		:<var>ifmt, ofmt</var>: input and output phase format
	:;<var>w</var>:~~The smoothing matrix, containg a two dimensional a smoothing function.~~		::*'''0''' = differences
			::*'''1''' = locked phase
			::*'''2''' = unlocked phase
			:<var>ipos, opos</var>: input and output frame index
			:<var>ibin, obin</var>: input and output spectral bin
			:<var>nbin</var>: number of spectral bins to convert
			:<var>rev</var>:reverse output phase (0=no, 1=yes)
			:<var>sr</var>:signal sampling rate
			:<var>len</var>:transformation length (in samples) used for analysis and resynthesis
			:<var>len</var>:hopsize (in samples) used for analysis and resynthesis
	;Description:		;Description:
	:*<code>nrow(''w''~~) = 2M+1</code> and <code>nrow(''a'') >> M</code>~~		;Result:A vector ''r'' with ''nbin'' values, containing the converted phase values.
	~~:*<code>ncol(''w'') = 2N+1</code> and <code>ncol(''w'~~'~~) = ncol(~~''a'~~')</code>~~
	~~:*The matrix ''w'' contains the weighting function~~, ~~with~~ the ~~maximum at ''w''[M,N] and which should be symetrical in both dimensions~~.
	~~::<code>''w''[M-i,N-j]=''w''[M-i,N+j]=''w''[M+i,N-j]=''w''[M+i,N+j]; with: i=1..M, j=1..N</code>~~
	~~:*The smoothed output is computed as follows:~~
	~~::<math>r[i]=\sum_{j=-M}^M \sum_{k=-N}^N a[i+j,N+k].w[M+j,N+k]</math>~~
	~~::with: <code>i=0..nrow(''a'')-1</code>; <code>''a''[i+j]=0</code> if <code>i+j<0</code> or <code>i+j>=nrow(''a'')</code>~~

	~~;Result: The vector ''r'' with the length <code>nrow(''a'')</code>, containing the smoothed filter spectrum.~~		;See also: [[../hcomb\|hcomb]], [[../optmm\|optmm]], [[Programmer_Guide/BScript#MulAc\|script application '''MulAc''']]
	;See also: [[../hcomb\|hcomb]], [[../~~cvphase~~\|~~cvphase~~]], [[Programmer_Guide/BScript#MulAc\|script application '''MulAc''']]

	[[../#Functions\|<function list>]]		[[../#Functions\|<function list>]]

Toni: Created page with '{{DISPLAYTITLE:{{SUBPAGENAME}}}} Smooth multiplier matrix using a two dimensional convolution. ;Usage:`optmm(mflag, a, w)` :;`m…'`

2011-04-20T12:31:54Z

Created page with '{{DISPLAYTITLE:{{SUBPAGENAME}}}} Smooth multiplier matrix using a two dimensional convolution. ;Usage:<code>optmm(<var>mflag</var>, <var>a</var>, <var>w</var>)</code> :;<var>m…'

New page

{{DISPLAYTITLE:{{SUBPAGENAME}}}}
Smooth multiplier matrix using a two dimensional convolution.

;Usage:<code>optmm(<var>mflag</var>, <var>a</var>, <var>w</var>)</code>
:;<var>mflag</var>:selects the method used to modify the multiplier matrix; currently only the method ''mflag''='''0''' is implemented
:;<var>a</var>:The multiplier matrix. Each row ''a''[i] contains one linear filter spectrum to be applied to a signal.
:;<var>w</var>:The smoothing matrix, containg a two dimensional a smoothing function.
;Description:
:*<code>nrow(''w'') = 2M+1</code> and <code>nrow(''a'') >> M</code>
:*<code>ncol(''w'') = 2N+1</code> and <code>ncol(''w'') = ncol(''a'')</code>
:*The matrix ''w'' contains the weighting function, with the maximum at ''w''[M,N] and which should be symetrical in both dimensions.
::<code>''w''[M-i,N-j]=''w''[M-i,N+j]=''w''[M+i,N-j]=''w''[M+i,N+j]; with: i=1..M, j=1..N</code>
:*The smoothed output is computed as follows:
::<math>r[i]=\sum_{j=-M}^M \sum_{k=-N}^N a[i+j,N+k].w[M+j,N+k]</math>
::with: <code>i=0..nrow(''a'')-1</code>; <code>''a''[i+j]=0</code> if <code>i+j<0</code> or <code>i+j>=nrow(''a'')</code>

;Result: The vector ''r'' with the length <code>nrow(''a'')</code>, containing the smoothed filter spectrum.
;See also: [[../hcomb|hcomb]], [[../cvphase|cvphase]], [[Programmer_Guide/BScript#MulAc|script application '''MulAc''']]

[[../#Functions|<function list>]]

Programmer Guide/Command Reference/EVAL/cvphase - Revision history

193.171.195.48 at 09:30, 21 April 2011

Toni at 13:07, 20 April 2011

Toni at 13:06, 20 April 2011

Toni at 12:46, 20 April 2011

Toni at 12:46, 20 April 2011

Toni at 12:44, 20 April 2011

Toni: Created page with '{{DISPLAYTITLE:{{SUBPAGENAME}}}} Smooth multiplier matrix using a two dimensional convolution. ;Usage:optmm(mflag, a, w) :;m…'

Toni: Created page with '{{DISPLAYTITLE:{{SUBPAGENAME}}}} Smooth multiplier matrix using a two dimensional convolution. ;Usage:`optmm(mflag, a, w)` :;`m…'`