container : Array, predefined Array for holding results

The GenerateTone(n, magnitude, frequency, phase ) command generates n samples for a tone (sinusoidal) signal with the indicated values for the magnitude, frequency and phase. The result is returned in an Array with datatype float[8].

If the container=c option is provided, then the results are put into c and c is returned. With this option, no additional memory is allocated to store the result. The container must be an Array of size n having datatype float[8].

The SignalProcessing[GenerateTone] command is thread-safe as of Maple 17.

For more information on thread safety, see index/threadsafe.

$\mathrm{with}\left(\mathrm{SignalProcessing}\right)\:$

$\mathrm{GenerateTone}\left(10\,1\,\frac{1}{\mathrm{\pi }}\,\mathrm{\pi }\right)$

$\left[\begin{array}{cccccccccc}\mathrm{-1.}& 0.416146836441423& 0.653643621350038& \mathrm{-0.960170286323671}& 0.145500032130976& 0.839071530285352& \mathrm{-0.843853957257653}& \mathrm{-0.136737221452172}& 0.957659481417870& \mathrm{-0.660316704993773}\end{array}\right]$

$c≔\mathrm{Array}\left(1..10\,\mathrm{datatype}=\mathrm{float}\left[8\right]\,\mathrm{order}=\mathrm{C\_order}\right)\:$

$\mathrm{GenerateTone}\left(10\,1\,\frac{1}{\mathrm{\pi }}\,\mathrm{\pi }\,\mathrm{container}=c\right)$

$\left[\begin{array}{cccccccccc}\mathrm{-1.}& 0.416146836441423& 0.653643621350038& \mathrm{-0.960170286323671}& 0.145500032130976& 0.839071530285352& \mathrm{-0.843853957257653}& \mathrm{-0.136737221452172}& 0.957659481417870& \mathrm{-0.660316704993773}\end{array}\right]$

$c$

$\left[\begin{array}{cccccccccc}\mathrm{-1.}& 0.416146836441423& 0.653643621350038& \mathrm{-0.960170286323671}& 0.145500032130976& 0.839071530285352& \mathrm{-0.843853957257653}& \mathrm{-0.136737221452172}& 0.957659481417870& \mathrm{-0.660316704993773}\end{array}\right]$

$\mathrm{SignalPlot}\left(\mathrm{GenerateTone}\left(100\,1\,\frac{1}{\mathrm{\pi }}\,\mathrm{\pi }\right)\right)$

$\mathrm{nSamples}≔200\:$

$\mathrm{RelativeFrequency}≔0.02\:$

$\mathrm{signal}≔\mathrm{Array}\left(\mathrm{GenerateTone}\left(\mathrm{nSamples}\,1\,\mathrm{RelativeFrequency}\,0\right)\right)$

$\mathrm{signal}≔\left[1.\,0.992114701314478\,0.968583161128631\,0.929776485888252\,0.876306680043864\,0.809016994374948\,0.728968627421413\,0.637423989748692\,0.535826794978999\,0.425779291565076\,0.309016994374951\,0.187381314585729\,0.0627905195293178\,\mathrm{-0.0627905195293086}\,\mathrm{-0.187381314585719}\,\mathrm{-0.309016994374942}\,\mathrm{-0.425779291565067}\,\mathrm{-0.535826794978991}\,\mathrm{-0.637423989748685}\,\mathrm{-0.728968627421407}\,\mathrm{-0.809016994374943}\,\mathrm{-0.876306680043860}\,\mathrm{-0.929776485888248}\,\mathrm{-0.968583161128629}\,\mathrm{-0.992114701314477}\,\mathrm{-1.00000000000000}\,\mathrm{-0.992114701314479}\,\mathrm{-0.968583161128633}\,\mathrm{-0.929776485888255}\,\mathrm{-0.876306680043868}\,\mathrm{-0.809016994374954}\,\mathrm{-0.728968627421419}\,\mathrm{-0.637423989748699}\,\mathrm{-0.535826794979006}\,\mathrm{-0.425779291565084}\,\mathrm{-0.309016994374959}\,\mathrm{-0.187381314585738}\,\mathrm{-0.0627905195293262}\,0.0627905195292995\,0.187381314585711\,0.309016994374934\,0.425779291565060\,0.535826794978984\,0.637423989748678\,0.728968627421401\,0.809016994374938\,0.876306680043856\,0.929776485888245\,0.968583161128627\,0.992114701314475\,1.\,0.992114701314480\,0.968583161128636\,0.929776485888258\,0.876306680043873\,0.809016994374959\,0.728968627421425\,0.637423989748705\,0.535826794979014\,0.425779291565092\,0.309016994374968\,0.187381314585746\,0.0627905195293359\,\mathrm{-0.0627905195292909}\,\mathrm{-0.187381314585702}\,\mathrm{-0.309016994374925}\,\mathrm{-0.425779291565051}\,\mathrm{-0.535826794978976}\,\mathrm{-0.637423989748671}\,\mathrm{-0.728968627421394}\,\mathrm{-0.809016994374932}\,\mathrm{-0.876306680043851}\,\mathrm{-0.929776485888242}\,\mathrm{-0.968583161128624}\,\mathrm{-0.992114701314474}\,\mathrm{-1.00000000000000}\,\mathrm{-0.992114701314481}\,\mathrm{-0.968583161128638}\,\mathrm{-0.929776485888262}\,\mathrm{-0.876306680043877}\,\mathrm{-0.809016994374965}\,\mathrm{-0.728968627421431}\,\mathrm{-0.637423989748713}\,\mathrm{-0.535826794979022}\,\mathrm{-0.425779291565100}\,\mathrm{-0.309016994374976}\,\mathrm{-0.187381314585755}\,\mathrm{-0.0627905195293443}\,0.0627905195292813\,0.187381314585693\,0.309016994374916\,0.425779291565043\,0.535826794978968\,0.637423989748664\,0.728968627421388\,0.809016994374927\,0.876306680043846\,0.929776485888238\,0.968583161128622\,0.992114701314473\,\dots \,\text{⋯ 100 Array entries not shown}\right]$

$\mathrm{SignalPlot}\left(\mathrm{signal}\right)$

$\mathrm{SamplingRate}≔1000\:$

$\mathrm{SignalPlot}\left(\mathrm{signal}\,\mathrm{samplerate}=\mathrm{SamplingRate}\mathrm{RelativeFrequency}\right)$

The SignalProcessing[GenerateTone] command was introduced in Maple 17.

For more information on Maple 17 changes, see Updates in Maple 17.