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authorEric Blossom2010-12-30 14:10:00 -0800
committerEric Blossom2010-12-30 16:01:45 -0800
commit9739742f0b90968a8aaf0f5c2e24f9bbadda5e80 (patch)
tree5f7b7cea893c18cdce9e6fc5887bb4719e1e326b /gnuradio-examples/waveforms/dial-tone.wfd
parent16416305bf6dc7879b81c6b86568a5597d8d5ab0 (diff)
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Move example waveforms to gnuradio-examples/waveforms.
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+;;; Emacs, format this using -*-scheme-*- mode.
+;;;
+;;; Copyright 2010 Free Software Foundation, Inc.
+;;;
+;;; This file is part of GNU Radio
+;;;
+;;; GNU Radio is free software; you can redistribute it and/or modify
+;;; it under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3, or (at your option)
+;;; any later version.
+;;;
+;;; GNU Radio is distributed in the hope that it will be useful,
+;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with this program. If not, see <http://www.gnu.org/licenses/>.
+;;;
+
+;;; This example waveform outputs a signal to an audio_alsa_sink
+;;; that sounds like North American dial tone.
+
+(use-modules (gnuradio audio_alsa))
+
+
+(define-waveform (dial-tone cmd-line-args)
+ (vars
+ (sample-rate 48000)
+ (ampl 0.1))
+
+ (blocks
+ (src0 (gr:sig-source-f sample-rate (gr:GR-SIN-WAVE) 350 ampl))
+ (src1 (gr:sig-source-f sample-rate (gr:GR-SIN-WAVE) 440 ampl))
+ (sink (gr:audio-alsa-sink sample-rate "plughw:0,0"))
+ )
+
+ (connections
+ (src0 (list sink 0)) ; src0 to left input
+ (src1 (list sink 1)))) ; src1 to right input