diff options
Diffstat (limited to 'gr-guile/example-waveforms/dial-tone.wfd')
| -rw-r--r-- | gr-guile/example-waveforms/dial-tone.wfd | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/gr-guile/example-waveforms/dial-tone.wfd b/gr-guile/example-waveforms/dial-tone.wfd new file mode 100644 index 000000000..75091ad36 --- /dev/null +++ b/gr-guile/example-waveforms/dial-tone.wfd @@ -0,0 +1,41 @@ +;;; 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")) + (sink (gr:sink sample-rate "plughw:0,0")) + ) + + (connections + (src0 (list sink 0)) ; src0 to left input + (src1 (list sink 1)))) ; src1 to right input |