Programmer Guide/Command Reference/EVAL/hz2cent - Revision history

193.171.195.48 at 09:54, 21 April 2011

2011-04-21T09:54:07Z

← Older revision		Revision as of 11:54, 21 April 2011
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	{{DISPLAYTITLE:hz2cent, cent2hz}}		{{DISPLAYTITLE:hz2cent, cent2hz}}
	Convert the elements of ''x'' from Hertz to Cent and vice versa.		Convert the elements of ''x'' from Hertz to Cent and vice versa.
	;Usage: ~~'''~~<code>hz2cent(<var>x</var> {, <var>ref</var> {, <var>ofs</var>}})</code>		;Usage: <code>hz2cent(<var>x</var> {, <var>ref</var> {, <var>ofs</var>}})</code>
	:~~'''~~<code>log2lin(<var>x</var> {, <var>ref</var> {, <var>ofs</var>}})</code>		:<code>log2lin(<var>x</var> {, <var>ref</var> {, <var>ofs</var>}})</code>
	:;<var>x</var>: a scalar, vector or matrix		:;<var>x</var>: a scalar, vector or matrix
	:;<var>ref</var>: the reference frequency in Hz; must be a positive number (default=440)		:;<var>ref</var>: the reference frequency in Hz; must be a positive number (default=440)

193.171.195.48 at 09:52, 21 April 2011

2011-04-21T09:52:22Z

← Older revision		Revision as of 11:52, 21 April 2011
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	''fac'' * log<sub>10</sub>(''x''<sub>i,j</sub> / ''ref'')		''fac'' * log<sub>10</sub>(''x''<sub>i,j</sub> / ''ref'')
	::'''cent2hz''': ''r''<sub>i,j</sub> = ''ref'' 2 ^ ((''x''<sub>i,j</sub> - ''ofs'') / 1200)		::'''cent2hz''': ''r''<sub>i,j</sub> = ''ref'' 2 ^ ((''x''<sub>i,j</sub> - ''ofs'') / 1200)
			;See also: [[../hz2mel\|hz2mel, mel2hz]], [[../hz2erb\|hz2erb, erb2hz]], [[../hz2bark\|hz2bark, bark2hz]], [[../hth\|hth]], [[../log2lin\|lin2log, log2lin]]

	~~;See also:~~ [[~~Programmer_Guide~~/Command_Reference/EVAL/hz2mel\|hz2mel, mel2hz]], [[Programmer_Guide/Command_Reference/EVAL/hz2erb\|hz2erb, erb2hz]], [[Programmer_Guide/Command_Reference/EVAL/hz2bark\|hz2bark, bark2hz]], [[Programmer_Guide/Command_Reference/EVAL/hth\|hth]], [[Programmer_Guide/Command_Reference/EVAL/log2lin\|~~lin2log, log2lin~~]]		[[../#Functions\|<function list>]]


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	#cent2 := eval 1200 * ld($#hz / 440) // this is a the same as #cent1		#cent2 := eval 1200 * ld($#hz / 440) // this is a the same as #cent1
	</pre>		</pre>

	~~[[Programmer_Guide/Command_Reference/EVAL#Functions\|<function list>]]~~

Toni at 14:39, 6 April 2011

2011-04-06T14:39:36Z

← Older revision		Revision as of 16:39, 6 April 2011
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	;See also: [[Programmer_Guide/Command_Reference/EVAL/hz2mel\|hz2mel, mel2hz]], [[Programmer_Guide/Command_Reference/EVAL/hz2erb\|hz2erb, erb2hz]], [[Programmer_Guide/Command_Reference/EVAL/hz2bark\|hz2bark, bark2hz]], [[Programmer_Guide/Command_Reference/EVAL/hth\|hth]], [[Programmer_Guide/Command_Reference/EVAL/log2lin\|lin2log, log2lin]]		;See also: [[Programmer_Guide/Command_Reference/EVAL/hz2mel\|hz2mel, mel2hz]], [[Programmer_Guide/Command_Reference/EVAL/hz2erb\|hz2erb, erb2hz]], [[Programmer_Guide/Command_Reference/EVAL/hz2bark\|hz2bark, bark2hz]], [[Programmer_Guide/Command_Reference/EVAL/hth\|hth]], [[Programmer_Guide/Command_Reference/EVAL/log2lin\|lin2log, log2lin]]


			Example:
			<pre>
			#hz := eval vv(100, 200, 440, 880)
			#cent1 := eval hz2cent($#hz)
			#cent2 := eval 1200 * ld($#hz / 440) // this is a the same as #cent1
			</pre>

	[[Programmer_Guide/Command_Reference/EVAL#Functions\|<function list>]]		[[Programmer_Guide/Command_Reference/EVAL#Functions\|<function list>]]

Toni at 14:37, 6 April 2011

2011-04-06T14:37:02Z

← Older revision		Revision as of 16:37, 6 April 2011
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	::'''hz2cent''': ''r''<sub>i,j</sub> = 1200 log<sub>2</sub>(''x''<sub>i,j</sub> / ''ref'') + ''ofs''		::'''hz2cent''': ''r''<sub>i,j</sub> = 1200 log<sub>2</sub>(''x''<sub>i,j</sub> / ''ref'') + ''ofs''
	''fac'' * log<sub>10</sub>(''x''<sub>i,j</sub> / ''ref'')		''fac'' * log<sub>10</sub>(''x''<sub>i,j</sub> / ''ref'')
	::'''cent2hz''': ''r''<sub>i,j</sub> = ''ref'' 2 ^ ((''x''<sub>i,j</sub> - ''ofs'') / ~~''fac''~~)		::'''cent2hz''': ''r''<sub>i,j</sub> = ''ref'' 2 ^ ((''x''<sub>i,j</sub> - ''ofs'') / 1200)

	;See also: [[Programmer_Guide/Command_Reference/EVAL/hz2mel\|hz2mel, mel2hz]], [[Programmer_Guide/Command_Reference/EVAL/hz2erb\|hz2erb, erb2hz]], [[Programmer_Guide/Command_Reference/EVAL/hz2bark\|hz2bark, bark2hz]], [[Programmer_Guide/Command_Reference/EVAL/hth\|hth]], [[Programmer_Guide/Command_Reference/EVAL/log2lin\|lin2log, log2lin]]		;See also: [[Programmer_Guide/Command_Reference/EVAL/hz2mel\|hz2mel, mel2hz]], [[Programmer_Guide/Command_Reference/EVAL/hz2erb\|hz2erb, erb2hz]], [[Programmer_Guide/Command_Reference/EVAL/hz2bark\|hz2bark, bark2hz]], [[Programmer_Guide/Command_Reference/EVAL/hth\|hth]], [[Programmer_Guide/Command_Reference/EVAL/log2lin\|lin2log, log2lin]]

	[[Programmer_Guide/Command_Reference/EVAL#Functions\|<function list>]]		[[Programmer_Guide/Command_Reference/EVAL#Functions\|<function list>]]

Toni at 14:36, 6 April 2011

2011-04-06T14:36:13Z

@@ Line 1: / Line 1: @@
-{{DISPLAYTITLE:{{SUBPAGENAME}}}}
+{{DISPLAYTITLE:hz2cent, cent2hz}}
-=====hz2cent=====
+Convert the elements of ''x'' from Hertz to Cent and vice versa.
-Hertz to Cent conversion where <var>x</var> -> 1200 * log2(<var>x</var> / <var>ref</var>) + <var>ofs</var>
+;See also: [[Programmer_Guide/Command_Reference/EVAL/hz2mel|hz2mel, mel2hz]], [[Programmer_Guide/Command_Reference/EVAL/hz2erb|hz2erb, erb2hz]], [[Programmer_Guide/Command_Reference/EVAL/hz2bark|hz2bark, bark2hz]], [[Programmer_Guide/Command_Reference/EVAL/hth|hth]], [[Programmer_Guide/Command_Reference/EVAL/log2lin|lin2log, log2lin]]
-=====Usage:=====
+[[Programmer_Guide/Command_Reference/EVAL#Functions|<function list>]]

Admin: 1 revision: Initial import

2010-11-18T16:31:39Z

1 revision: Initial import

← Older revision	Revision as of 18:31, 18 November 2010
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193.171.195.8: initial import

2010-05-17T13:05:27Z

initial import

New page

{{DISPLAYTITLE:{{SUBPAGENAME}}}}
=====hz2cent=====

Hertz to Cent conversion where <var>x</var> -> 1200 * log2(<var>x</var> / <var>ref</var>) + <var>ofs</var>

=====Usage:=====

<code>hz2cent(<var>x</var>, <var>ref</var>, <var>ofs</var>)</code>

=====Parameters:=====

;<var>ofs</var>

:The default is <code>0</code>.

;<var>ref</var>

:The default is <code>440</code>.