http://code.activestate.com/recipes/tags/audio-amiga/2017-05-13T12:12:30-07:00ActiveState Code Recipes2017-05-13T12:12:30-07:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/580801-a-white-noise-generator-to-sooth-baby-to-sleep/

<p style="color: grey"> Bash recipe 580801 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/alarm/">alarm</a>, <a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/baby_alarm/">baby_alarm</a>, <a href="/recipes/tags/cygwin/">cygwin</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/noise/">noise</a>, <a href="/recipes/tags/sleep/">sleep</a>, <a href="/recipes/tags/sound/">sound</a>, <a href="/recipes/tags/whitenoise/">whitenoise</a>). </p> <p>This is a simple BASH, DASH and SH script to sooth a newborn baby to sleep for a laptop with a builtin mic. Develeoped around an Apple MacBook Pro.</p> <p>Usage:- [./]shush.sh &lt;time in seconds from 18 to 2700&gt; [sensitivity [Hh|Mm|Ll]]&lt;CR&gt;</p> <p>If time is omitted it defaults to 2 bursts of 9 seconds each and if sensitivity is omitted defaults to [M]edium.</p> <p>It uses Quicktime Player for Apple OSX 10.12.4 minimum /dev/dsp for CygWin and some Linux flavours and arecored for Linux ALSA machines for baby awake detector.</p> <p>Upon the two arguments the white noise generator runs for approximately the time given in $1 in bursts of 9 seconds until the time limit is reached. $2 is used to detect of baby is awake and reruns the noise generator again with a new noise waveform.</p> <p>Enjoy...</p>

2016-12-30T19:06:32-08:00Vasudev Ramhttp://code.activestate.com/recipes/users/4173351/http://code.activestate.com/recipes/580739-a-command-line-musical-alarm-clock/

<p style="color: grey"> Python recipe 580739 by <a href="/recipes/users/4173351/">Vasudev Ram</a> (<a href="/recipes/tags/alarm/">alarm</a>, <a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/clock/">clock</a>, <a href="/recipes/tags/multimedia/">multimedia</a>, <a href="/recipes/tags/music/">music</a>, <a href="/recipes/tags/playsound/">playsound</a>, <a href="/recipes/tags/python/">python</a>, <a href="/recipes/tags/time/">time</a>, <a href="/recipes/tags/utilities/">utilities</a>, <a href="/recipes/tags/utility/">utility</a>). </p> <p>This is a simple musical alarm clock in Python. You pass a command-line argument specifying the time in minutes after which the alarm should go off. When that time arrives, it plays a musical sound.</p>

2015-10-22T18:24:08-07:00Vasudev Ramhttp://code.activestate.com/recipes/users/4173351/http://code.activestate.com/recipes/579116-use-pyaudio-to-play-a-list-of-wav-files/

<p style="color: grey"> Python recipe 579116 by <a href="/recipes/users/4173351/">Vasudev Ram</a> (<a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/music/">music</a>, <a href="/recipes/tags/python/">python</a>, <a href="/recipes/tags/python2/">python2</a>, <a href="/recipes/tags/sound/">sound</a>). </p> <p>This recipe shows how to use PyAudio, a 3rd-party Python audio toolkit, to play a list of WAV files on your computer. This is an enhanced version of a basic WAV code example on the PyAudio site. You can specify either one WAV filename on the command line, like this:</p> <p>py pyaudio_play_wav.py chimes.wav</p> <p>or specify a text file containing names of WAV files to play, like this:</p> <p>py pyaudio_play_wav.py -f wav_fil_list.txt</p> <p>The only dependency is PyAudio, which you can install with pip.</p>

2015-08-17T18:54:17-07:00Jiri Justrahttp://code.activestate.com/recipes/users/4192188/http://code.activestate.com/recipes/579070-simple-audio-with-ctypes-and-sdl-also-for-tkinter/

<p style="color: grey"> Python recipe 579070 by <a href="/recipes/users/4192188/">Jiri Justra</a> (<a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/sdl/">sdl</a>, <a href="/recipes/tags/sdl_mixer/">sdl_mixer</a>, <a href="/recipes/tags/tkinter/">tkinter</a>). Revision 3. </p> <p>I've needed just to play audio in my Tkinter application, but it seems there is no easy way to do this, so I have made this simple code. It is small ctypes wrapper around SDL_mixer.</p> <p>It should work for Win and *nix also .. I've tested it on ubuntu-14.04.3-desktop-i386</p>

2014-11-08T19:10:58-08:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578960-not-quite-so-simple-quicktime-player-python-audio-/

<p style="color: grey"> Python recipe 578960 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/audio_capture/">audio_capture</a>, <a href="/recipes/tags/capture/">capture</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/maccbook_pro/">maccbook_pro</a>, <a href="/recipes/tags/sample/">sample</a>, <a href="/recipes/tags/signal_capture/">signal_capture</a>). </p> <p>Not Quite So Simple QuickTime Player, Python Audio Capture.</p> <p>This DEMO code captures a function to generate a user 5 second Audio sample in Apple *.aifc format. It is then converted to DC quailty *.WAV format.</p> <p>It uses default shell system files to do the task.</p> <p>An AppleScript is created to do the sample but due to the limitations of QT Player there is a 1.5 second delay to allow QuickTine Player to start up. It is not entirely quiet but unobtrusive enough as to be like quiet mode...</p> <p>This is again a means a signal capture for an AudioScope without the need for special tools or installs.</p> <p>Read the code for more information.</p> <p>IMPORTANT!!! This DEMO WILL delete all *.aifc files inside the default $HOME/Movies directory, so be aware.</p> <p>A simple ALSA one is on its way too...</p> <p>It actually works on Python 3.4.1 but I have no idea if it works below Python 2.5.6...</p> <p>Bazza...</p>

2014-10-17T14:39:16-07:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578952-simple-audio-capture-for-windows/

<p style="color: grey"> Python recipe 578952 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/audio_capture/">audio_capture</a>, <a href="/recipes/tags/capture/">capture</a>, <a href="/recipes/tags/sample/">sample</a>, <a href="/recipes/tags/signal_capture/">signal_capture</a>, <a href="/recipes/tags/windows/">windows</a>). </p> <p>This snippet will capture from approximately 1 second to nearly 10000 hours of audio silently using Windows SoundRecorder.exe and save automatically to a file named SAMPLE.WAV in the C:\Windows\Temp\ folder/drawer/directory. It is 16 bit signed integer depth, stereo and sampled at 44100 Hz. This is for Python 2.0.1 to 3.3.2, (my latest version).</p> <p>Enjoy finding simple solutions to very difficult problems...</p> <p>(An OSX version is on its way too...)</p> <p>Bazza...</p>

2014-02-27T19:36:17-08:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578837-a-bash-beep-command-for-osx-107/

<p style="color: grey"> Bash recipe 578837 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/bash/">bash</a>, <a href="/recipes/tags/beep/">beep</a>, <a href="/recipes/tags/error_beep/">error_beep</a>, <a href="/recipes/tags/error_sound/">error_sound</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/sound/">sound</a>). </p> <p>This small bash script generates an 8044 byte 1KHz sinewave wave file and immediately plays it. The file created is a _pure_ sinewave and lasts for 1 second. It uses the default "afplay" command to run the generated file.</p> <p>It was designed around an Apple Macbook Pro but using "aplay" it might even work on other *nix flavours from the command line. I have not bothered to try it as this was purely for my MB Pro.</p> <p>The wave file can be found as "/tmp/sinewave.wav" during the working session(s) and can be saved anywhere of your choice.</p> <p>Enjoy...</p> <p>(Watch for word wrapping etc...)</p> <p>Bazza.</p>

2014-02-08T01:03:36-08:00Mano Bastardohttp://code.activestate.com/recipes/users/4182040/http://code.activestate.com/recipes/578771-recursive-multimedia-audio-video-m3u-playlist-gene/

<p style="color: grey"> Python recipe 578771 by <a href="/recipes/users/4182040/">Mano Bastardo</a> (<a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/ffmpeg/">ffmpeg</a>, <a href="/recipes/tags/generate/">generate</a>, <a href="/recipes/tags/m3u/">m3u</a>, <a href="/recipes/tags/mulitmedia/">mulitmedia</a>, <a href="/recipes/tags/os/">os</a>, <a href="/recipes/tags/playlist/">playlist</a>, <a href="/recipes/tags/python/">python</a>, <a href="/recipes/tags/system/">system</a>, <a href="/recipes/tags/video/">video</a>). Revision 9. </p> <p>Generate an m3u playlist searching recursively for multimedia files (video or audio) in the given directory. Information from ID3 tags will be extracted for audio files with <a href="http://en.wikipedia.org/wiki/FFmpeg">FFmpeg</a> available.</p>

2013-06-09T12:52:30-07:00Anton Vredegoorhttp://code.activestate.com/recipes/users/2667360/http://code.activestate.com/recipes/578556-how-to-stream-an-mp3-file-using-vlcpy-with-a-simpl/

<p style="color: grey"> Python recipe 578556 by <a href="/recipes/users/2667360/">Anton Vredegoor</a> (<a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/streaming/">streaming</a>, <a href="/recipes/tags/tkinter/">tkinter</a>, <a href="/recipes/tags/vlc/">vlc</a>). </p> <p>This script can be used to stream an existing mp3 file to multiple computers. It has a simple Tkinter GUI with only one button to start/stop the stream, and a slider to indicate or change the position.</p>

2013-07-14T19:31:13-07:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578605-a-fun-bash-shell-bomb-out-error-sound/

<p style="color: grey"> Bash recipe 578605 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/bash/">bash</a>, <a href="/recipes/tags/error_beep/">error_beep</a>, <a href="/recipes/tags/error_sound/">error_sound</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/sound/">sound</a>, <a href="/recipes/tags/sound_exchange/">sound_exchange</a>, <a href="/recipes/tags/sox/">sox</a>). </p> <p>Do you remember the Bomb-Out icon(s) that appeared on some computers' SW and HW many years ago...</p> <p>Well this is a matching sound to go with it and can be used as a critical error sound.</p> <p>It sounds like a bomb being dropped from an aeroplane and is purely a shell sript only.</p> <p>It is set up to run SOund eXchange, SOX, but just by editing the code "/dev/dsp" can be used instead.</p> <p>Read the code for more informastion.</p> <p>Enjoy...</p> <p>Bazza...</p>

2013-06-19T19:06:50-07:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578570-bash-script-for-an-oscilloscope/

<p style="color: grey"> Bash recipe 578570 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/anim/">anim</a>, <a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/audioscope/">audioscope</a>, <a href="/recipes/tags/bash/">bash</a>, <a href="/recipes/tags/oscilloscope/">oscilloscope</a>, <a href="/recipes/tags/scope/">scope</a>, <a href="/recipes/tags/script/">script</a>, <a href="/recipes/tags/sound_exchange/">sound_exchange</a>, <a href="/recipes/tags/sox/">sox</a>, <a href="/recipes/tags/terminal/">terminal</a>). </p> <p>This code is the latest as of 19-06-2013. It is an AudioScope designed around a Macbook Pro 13" of which only has ONE microphone input. It works under Linux variants too. Read the code for much more info.</p> <p>It was my way of learning Bash scripting.</p> <p>It is resident here at this site:-</p> <p><a href="http://www.unix.com/shell-programming-scripting/212939-start-simple-audio-scope-shell-script.html" rel="nofollow">http://www.unix.com/shell-programming-scripting/212939-start-simple-audio-scope-shell-script.html</a></p> <p>It started off as a fun idea and is now becoming a very serious project.</p> <p>As it stands this is fully working but it is uncalibrated and this is where it will stay on this site.</p> <p>As the above site is the host then all future uploads will be there...</p> <p>To do list...</p> <p>DC input. [1] DC polarity. [1] 2 more Internal sync modes. External triggering. Zoom facility - if possible in text mode. Vertical calibration. [2] Frequency measurement. {3] (Others.)</p> <p>[1] I have simple HW built as an idea but yet to prove it... [2] Preliminary HW built but not yet used. Calibration SW and circuit(s) to be built into script as it progresses. [3] I already have a working script but not completely satisfied at it at this point...</p> <p>I am noing to say much else except that it has already been given a 5 star rating on the above UNIX site...</p> <p>As it stands this code is entirely Public Domian and you may do with it as you please...</p> <p>Enjoy something completely different using Bash scripting...</p> <p>Finally the code defaults to a DEMO mode which requires no HW access at all but everything is still functional...</p> <p>__Thoroughly__ read the code for more information...</p> <p>As a circuit is inside the script then it is best viewed in plan text mode.</p> <p>Bazza, G0LCU.</p>

2013-05-02T17:48:18-07:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578516-a-sox-1khz-sinewave-generator-using-a-windows-tm-b/

<p style="color: grey"> Batch recipe 578516 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/generator/">generator</a>, <a href="/recipes/tags/sound/">sound</a>, <a href="/recipes/tags/sound_exchange/">sound_exchange</a>, <a href="/recipes/tags/sox/">sox</a>, <a href="/recipes/tags/windows/">windows</a>). </p> <p>32 bit Windows to Windows 7...</p> <p>This batch file generates a 65536 byte binary file to give 8 seconds of pure sinewave at the earphone/speaker output(s)...</p> <p>It uses ONLY a default Windows 32 bit installation, to Windows 7, except for the installation of SOX...</p> <p>Obtain SOX from here:-</p> <p><a href="http://sox.sourceforge.net/" rel="nofollow">http://sox.sourceforge.net/</a></p> <p>Notepad was the _main_ editor... ;o)</p> <p>Hopefully the code section does NOT corrupt the binary part which is 8 bytes in size. If it does then let me know on here and I will post a pointer from where to grab it...</p> <p>Enjoy...</p>

2013-04-18T15:04:25-07:00Granning Stolinehttp://code.activestate.com/recipes/users/4186069/http://code.activestate.com/recipes/578510-wav-audio-file-dynamic-range-compressor/

<p style="color: grey"> C recipe 578510 by <a href="/recipes/users/4186069/">Granning Stoline</a> (<a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/compressor/">compressor</a>, <a href="/recipes/tags/dynamic/">dynamic</a>, <a href="/recipes/tags/file/">file</a>, <a href="/recipes/tags/range/">range</a>, <a href="/recipes/tags/wav/">wav</a>). Revision 4. </p> <p>Wav audio file dynamic range compressor</p>

2013-03-01T19:41:47-08:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578477-demo-generate-a-crude-1khz-sinewave-using-a-bash-s/

<p style="color: grey"> Bash recipe 578477 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/bash/">bash</a>, <a href="/recipes/tags/demo/">demo</a>, <a href="/recipes/tags/generator/">generator</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/shell/">shell</a>, <a href="/recipes/tags/sinewave/">sinewave</a>, <a href="/recipes/tags/sound/">sound</a>). </p> <p>A very simple crude sinewave generator using a BASH script inside a Linux Terminal.</p> <p>The file required is generated inside the code and requires /dev/audio to work.</p> <p>Ensure you have this device, if not the download oss-compat from your OS's repository...</p> <p>It lasts for about 8 seconds before exiting and saves a 65536 byte file to your working directory/drawer/folder as sinewave.raw.</p> <p>Use an oscilloscope to check the waveform generated...</p> <p>It is entirely Public Domain and you may do with it as you please...</p> <p>Enjoy finding simple solutions to often very difficult problems... ;o)</p> <p>Bazza, G0LCU...</p>

2013-02-09T10:21:39-08:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578451-demo-kids-level-python-rf-attenuator/

<p style="color: grey"> Python recipe 578451 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/attenuator/">attenuator</a>, <a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/demo/">demo</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/rf/">rf</a>, <a href="/recipes/tags/sound/">sound</a>, <a href="/recipes/tags/windows/">windows</a>). </p> <p>This code is a DEMO RF Attenuator for SW listeners.</p> <p>(The code is to show how to generate the same waveform in each channel but in antiphase, as bridge output. The RF Attenuator is just a byproduct...)</p> <p>The circuit has an insertion loss of about 10dB at full gain but that doesn't matter as it IS an attenuator after all.</p> <p>It is another learning tool for kids to build and code for themselves.</p> <p>The only common user I/O on desktops, netbooks, laptops and current MacBooks is/are the Audio Mic and Ear sockets...</p> <p>This goes for "mobiles" too...</p> <p>The circuit inside the code is so easy a 10 year old could have a working unit inisde 2 hours to experiment with...</p> <p>PyAudio IS needed for this to work and although originally designed around a MacBook Pro 13 inch OSX 10.7.5 and Python 2.6.7 has shown itself to be near platform independent...</p> <p>Read the code for much more information...</p> <p>Enjoy finding simple solutions to often very difficult problems... ;o)</p> <p>Bazza, G0LCU...</p>

2012-11-25T10:10:45-08:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578350-platform-independent-white-noise-generator/

<p style="color: grey"> Python recipe 578350 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/demo/">demo</a>, <a href="/recipes/tags/generator/">generator</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/noise/">noise</a>, <a href="/recipes/tags/program/">program</a>, <a href="/recipes/tags/pyaudio/">pyaudio</a>, <a href="/recipes/tags/signal/">signal</a>, <a href="/recipes/tags/sound/">sound</a>, <a href="/recipes/tags/source/">source</a>, <a href="/recipes/tags/windows/">windows</a>). </p> <p>This code is a derivative of the Pure Sinewave Generator and produces a continuous noise out of the speakers or headphone sockets.</p> <p>It is for the hobbyist to be able to generate a pseudo-random noise signal for testing with.</p> <p>It is issued as Public Domian and you may do with it as you please.</p> <p>It is very easy to convert to Python 3.x.x but as OSX only has 2.7.x and lower ATM then these are what are used...</p> <p>An installation of pyaudio IS needed for this to work; see the code for more information.</p> <p>It is near platform independent but sadly the AMIGA is not included, but hey, I have already shown how generate sound for Classic AMIGAs.</p> <p>Enjoy finding simple solutions to often very difficult problems...</p> <p>Bazza, G0LCU...</p>

2012-10-23T12:53:37-07:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578301-platform-independent-1khz-pure-audio-sinewave-gene/

<p style="color: grey"> Python recipe 578301 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/demo/">demo</a>, <a href="/recipes/tags/generator/">generator</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/program/">program</a>, <a href="/recipes/tags/pyaudio/">pyaudio</a>, <a href="/recipes/tags/signal/">signal</a>, <a href="/recipes/tags/sinewave/">sinewave</a>, <a href="/recipes/tags/sound/">sound</a>, <a href="/recipes/tags/source/">source</a>, <a href="/recipes/tags/windows/">windows</a>). Revision 2. </p> <p>IKHz_SW_OSX.py</p> <p>A mono _pure_ sinewave generator using standard text mode Python 2.6.7 to at least 2.7.3.</p> <p>This DEMO kids level 1KHz generator is mainly for a MacBook Pro, (13 inch in my case), OSX 10.7.5 and above. See below...</p> <p>It is another simple piece of testgear for the young amateur electronics enthusiast and uses pyaudio fully installed for it to work.</p> <p>PyAudio can be obtained from here:- <a href="http://people.csail.mit.edu/hubert/pyaudio/" rel="nofollow">http://people.csail.mit.edu/hubert/pyaudio/</a></p> <p>This was primarily for a MacBook Pro, but works on at least 2 Linux flavours and Windows Vista 32 bit...</p> <p>The sinewave generated is near excellent...</p> <p>Enjoy finding simple solutions to often very difficult problems... Bazza, G0LCU...</p>

2012-10-07T14:15:55-07:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578282-for-macbook_pro-heads-only-simple-lf-audio-oscillo/

<p style="color: grey"> Python recipe 578282 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/anim/">anim</a>, <a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/demo/">demo</a>, <a href="/recipes/tags/display/">display</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/oscilloscope/">oscilloscope</a>, <a href="/recipes/tags/pyaudio/">pyaudio</a>, <a href="/recipes/tags/scope/">scope</a>, <a href="/recipes/tags/sound/">sound</a>). </p> <p>For MacBook_Pro-Heads Only. Simple LF Audio Oscilloscope Using Standard Text Mode Python.</p> <p>SimpleScope_OSX.py</p> <p>Do you remember this upload from myself on 26-06-2011...</p> <p><a href="http://code.activestate.com/recipes/577771-simple-lf-audio-oscilloscope-using-standard-text-m/?in=user-4177147" rel="nofollow">http://code.activestate.com/recipes/577771-simple-lf-audio-oscilloscope-using-standard-text-m/?in=user-4177147</a></p> <p>Well here is an August 2012 vintage MacBook Pro 13 inch version of it for OSX 10.7.5...</p> <p>This is proof of concept code for a kids level project I am doing for a MacBook Pro, 13 inch, OSX 10.7.5. A DEMO to show how to display a waveform using standard text mode Python. "pyaudio" must be installed for this to work. Levels are set using the standard audio mixers, (System Preferences -> Sound).</p> <p>Just whistle a signal of say 300Hz to 3KHz, (normal voice spectrum), using say, the internal mic, and watch a waveform appear inside the X-Y graticule.</p> <p>Read the code for more information.</p> <p>$VER: SimpleScope_OSX.py_Version_0.00.10_(C)2012_B.Walker_G0LCU.</p> <p>This code is GPL2, but, the hardware information is Public Domain.</p> <p>(I am looking into including Windows and Linux variants too using pyaudio to access the sound system.)</p> <p>Enjoy finding simple solutions to often very difficult problems.</p> <p>Bazza, G0LCU...</p>

2012-08-02T18:05:29-07:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578232-a-crude-baby-alarm-for-standard-text-mode-python-a/

<p style="color: grey"> Python recipe 578232 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/alarm/">alarm</a>, <a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/baby_alarm/">baby_alarm</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/sound/">sound</a>). </p> <p>This is a simple audio monitor that records about 1/2 second of sound then immediately plays it back in a continuous loop.</p> <p>If you are testing with a laptop's, (etc), internal microphone be aware that acoustic feedback might occur...</p> <p>This could be a use for your now aging netbook... ;o)</p> <p>Bazza, G0LCU...</p>

2012-06-19T00:41:22-07:00FB36http://code.activestate.com/recipes/users/4172570/http://code.activestate.com/recipes/578168-sound-generator-using-wav-file/

<p style="color: grey"> Python recipe 578168 by <a href="/recipes/users/4172570/">FB36</a> (<a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/sound/">sound</a>). </p> <p>This is an example for generating sound using wave files. It is equivalent to:</p> <p>from winsound import Beep</p> <p>Beep(freq, duration * 1000)</p> <p>But of course wave files can also be used to generate any other kinds of sounds. </p>