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.

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

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

$\left[\begin{array}{cccccccccc}\mathrm{-1.}& 0.416146836441423& 0.653643621350037& \mathrm{-0.960170286323670}& 0.145500032130977& 0.839071530285352& \mathrm{-0.843853957257653}& \mathrm{-0.136737221452173}& 0.957659481417869& \mathrm{-0.660316704993774}\end{array}\right]$

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

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

$\left[\begin{array}{cccccccccc}\mathrm{-1.}& 0.416146836441423& 0.653643621350037& \mathrm{-0.960170286323670}& 0.145500032130977& 0.839071530285352& \mathrm{-0.843853957257653}& \mathrm{-0.136737221452173}& 0.957659481417869& \mathrm{-0.660316704993774}\end{array}\right]$

$c$

$\left[\begin{array}{cccccccccc}\mathrm{-1.}& 0.416146836441423& 0.653643621350037& \mathrm{-0.960170286323670}& 0.145500032130977& 0.839071530285352& \mathrm{-0.843853957257653}& \mathrm{-0.136737221452173}& 0.957659481417869& \mathrm{-0.660316704993774}\end{array}\right]$

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

$\mathrm{nSamples}≔200\:$

$\mathrm{RelativeFrequency}≔0.02\:$

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

$\mathrm{signal}≔\left[1.\,0.992114701314478\,0.968583161128631\,0.929776485888251\,0.876306680043864\,0.809016994374947\,0.728968627421412\,0.637423989748690\,0.535826794978997\,0.425779291565073\,0.309016994374947\,0.187381314585725\,0.0627905195293133\,\mathrm{-0.0627905195293134}\,\mathrm{-0.187381314585725}\,\mathrm{-0.309016994374947}\,\mathrm{-0.425779291565073}\,\mathrm{-0.535826794978997}\,\mathrm{-0.637423989748690}\,\mathrm{-0.728968627421411}\,\mathrm{-0.809016994374947}\,\mathrm{-0.876306680043864}\,\mathrm{-0.929776485888251}\,\mathrm{-0.968583161128631}\,\mathrm{-0.992114701314478}\,\mathrm{-1.}\,\mathrm{-0.992114701314478}\,\mathrm{-0.968583161128631}\,\mathrm{-0.929776485888251}\,\mathrm{-0.876306680043863}\,\mathrm{-0.809016994374948}\,\mathrm{-0.728968627421412}\,\mathrm{-0.637423989748690}\,\mathrm{-0.535826794978996}\,\mathrm{-0.425779291565072}\,\mathrm{-0.309016994374948}\,\mathrm{-0.187381314585725}\,\mathrm{-0.0627905195293132}\,0.0627905195293128\,0.187381314585724\,0.309016994374947\,0.425779291565072\,0.535826794978997\,0.637423989748689\,0.728968627421411\,0.809016994374947\,0.876306680043864\,0.929776485888251\,0.968583161128631\,0.992114701314478\,1.\,0.992114701314478\,0.968583161128631\,0.929776485888251\,0.876306680043864\,0.809016994374947\,0.728968627421412\,0.637423989748690\,0.535826794978996\,0.425779291565073\,0.309016994374948\,0.187381314585725\,0.0627905195293142\,\mathrm{-0.0627905195293136}\,\mathrm{-0.187381314585725}\,\mathrm{-0.309016994374947}\,\mathrm{-0.425779291565073}\,\mathrm{-0.535826794978997}\,\mathrm{-0.637423989748691}\,\mathrm{-0.728968627421412}\,\mathrm{-0.809016994374947}\,\mathrm{-0.876306680043864}\,\mathrm{-0.929776485888251}\,\mathrm{-0.968583161128631}\,\mathrm{-0.992114701314478}\,\mathrm{-1.}\,\mathrm{-0.992114701314478}\,\mathrm{-0.968583161128631}\,\mathrm{-0.929776485888252}\,\mathrm{-0.876306680043863}\,\mathrm{-0.809016994374948}\,\mathrm{-0.728968627421412}\,\mathrm{-0.637423989748691}\,\mathrm{-0.535826794978996}\,\mathrm{-0.425779291565072}\,\mathrm{-0.309016994374948}\,\mathrm{-0.187381314585726}\,\mathrm{-0.0627905195293134}\,0.0627905195293126\,0.187381314585725\,0.309016994374947\,0.425779291565072\,0.535826794978997\,0.637423989748689\,0.728968627421412\,0.809016994374947\,0.876306680043864\,0.929776485888251\,0.968583161128631\,0.992114701314478\,\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.