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authorWalter Bender <walter@sugarlabs.org>2010-12-07 12:31:25 (GMT)
committer Walter Bender <walter@sugarlabs.org>2010-12-07 12:31:25 (GMT)
commit2cc8bc4611cce3c92708544a5e575b90b7e98192 (patch)
treecdaa758c6280985f489e2828e3e28b12b0fdaf8d /pysamples
parent07da8a18901ec53c8052ead7a33be71f34caafe3 (diff)
adding new sample program: play a sinewave through the speaker
Diffstat (limited to 'pysamples')
-rw-r--r--pysamples/sinewave.py33
1 files changed, 33 insertions, 0 deletions
diff --git a/pysamples/sinewave.py b/pysamples/sinewave.py
new file mode 100644
index 0000000..eea975d
--- /dev/null
+++ b/pysamples/sinewave.py
@@ -0,0 +1,33 @@
+#Copyright (c) 2010, Tony Forster
+
+#Permission is hereby granted, free of charge, to any person obtaining a copy
+#of this software and associated documentation files (the "Software"), to deal
+#in the Software without restriction, including without limitation the rights
+#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+#copies of the Software, and to permit persons to whom the Software is
+#furnished to do so, subject to the following conditions:
+
+#The above copyright notice and this permission notice shall be included in
+#all copies or substantial portions of the Software.
+
+#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+#THE SOFTWARE.
+
+# This procedure is invoked when the user-definable block on the "extras"
+# palette is selected.
+
+def myblock(lc, x):
+
+ ###########################################################################
+ #
+ # Plays a sound at frequency x
+ #
+ ###########################################################################
+
+ import os
+ os.system('speaker-test -t sine -l 1 -f %d' % (int(x)))