Popular recipes tagged "audio" but not "apple"

A command-line musical alarm clock (Python)

2016-12-30T19:06:32-08:00

Python recipe 580739 by Vasudev Ram (alarm, audio, clock, multimedia, music, playsound, python, time, utilities, utility).

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.

Use PyAudio to play a list of WAV files (Python)

2015-10-22T18:24:08-07:00

Python recipe 579116 by Vasudev Ram (audio, music, python, python2, sound).

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:

py pyaudio_play_wav.py chimes.wav

or specify a text file containing names of WAV files to play, like this:

py pyaudio_play_wav.py -f wav_fil_list.txt

The only dependency is PyAudio, which you can install with pip.

Simple audio with ctypes and SDL also for Tkinter (Python)

2015-08-17T18:54:17-07:00

Python recipe 579070 by Jiri Justra (audio, sdl, sdl_mixer, tkinter). Revision 3.

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.

It should work for Win and *nix also .. I've tested it on ubuntu-14.04.3-desktop-i386

Simple Audio Capture For Windows... (Python)

2014-10-17T14:39:16-07:00

Python recipe 578952 by Barry Walker (audio, audio_capture, capture, sample, signal_capture, windows).

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).

Enjoy finding simple solutions to very difficult problems...

(An OSX version is on its way too...)

Bazza...

Recursive Multimedia (audio, video) M3U Playlist Generator (Python)

2014-02-08T01:03:36-08:00

Python recipe 578771 by Mano Bastardo (audio, ffmpeg, generate, m3u, mulitmedia, os, playlist, python, system, video). Revision 9.

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 FFmpeg available.

How to stream an mp3 file using vlc.py, with a simple TKinter GUI. (Python)

2013-06-09T12:52:30-07:00

Python recipe 578556 by Anton Vredegoor (audio, streaming, tkinter, vlc).

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.

Bash Script For An Oscilloscope... (Bash)

2013-06-19T19:06:50-07:00

Bash recipe 578570 by Barry Walker (anim, audio, audioscope, bash, oscilloscope, scope, script, sound_exchange, sox, terminal).

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.

It was my way of learning Bash scripting.

It is resident here at this site:-

http://www.unix.com/shell-programming-scripting/212939-start-simple-audio-scope-shell-script.html

It started off as a fun idea and is now becoming a very serious project.

As it stands this is fully working but it is uncalibrated and this is where it will stay on this site.

As the above site is the host then all future uploads will be there...

To do list...

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.)

[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...

I am noing to say much else except that it has already been given a 5 star rating on the above UNIX site...

As it stands this code is entirely Public Domian and you may do with it as you please...

Enjoy something completely different using Bash scripting...

Finally the code defaults to a DEMO mode which requires no HW access at all but everything is still functional...

__Thoroughly__ read the code for more information...

As a circuit is inside the script then it is best viewed in plan text mode.

Bazza, G0LCU.

A SOX 1KHz Sinewave Generator Using A Windows, (TM), Batch File... (Batch)

2013-05-02T17:48:18-07:00

Batch recipe 578516 by Barry Walker (audio, generator, sound, sound_exchange, sox, windows).

32 bit Windows to Windows 7...

This batch file generates a 65536 byte binary file to give 8 seconds of pure sinewave at the earphone/speaker output(s)...

It uses ONLY a default Windows 32 bit installation, to Windows 7, except for the installation of SOX...

Obtain SOX from here:-

http://sox.sourceforge.net/

Notepad was the _main_ editor... ;o)

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...

Enjoy...

Wav audio file dynamic range compressor (C)

2013-04-18T15:04:25-07:00

C recipe 578510 by Granning Stoline (audio, compressor, dynamic, file, range, wav). Revision 4.

Wav audio file dynamic range compressor

DEMO - Generate A Crude 1KHz Sinewave Using A BASH Script. (Bash)

2013-03-01T19:41:47-08:00

Bash recipe 578477 by Barry Walker (audio, bash, demo, generator, linux, shell, sinewave, sound).

A very simple crude sinewave generator using a BASH script inside a Linux Terminal.

The file required is generated inside the code and requires /dev/audio to work.

Ensure you have this device, if not the download oss-compat from your OS's repository...

It lasts for about 8 seconds before exiting and saves a 65536 byte file to your working directory/drawer/folder as sinewave.raw.

Use an oscilloscope to check the waveform generated...

It is entirely Public Domain and you may do with it as you please...

Enjoy finding simple solutions to often very difficult problems... ;o)

Bazza, G0LCU...

A Crude Baby Alarm For Standard Text Mode Python And Linux. (Python)

2012-08-02T18:05:29-07:00

Python recipe 578232 by Barry Walker (alarm, audio, baby_alarm, linux, sound).

This is a simple audio monitor that records about 1/2 second of sound then immediately plays it back in a continuous loop.

If you are testing with a laptop's, (etc), internal microphone be aware that acoustic feedback might occur...

This could be a use for your now aging netbook... ;o)

Bazza, G0LCU...

Sound Generator Using WAV file (Python)

2012-06-19T00:41:22-07:00

Python recipe 578168 by FB36 (audio, sound).

This is an example for generating sound using wave files. It is equivalent to:

from winsound import Beep

Beep(freq, duration * 1000)

But of course wave files can also be used to generate any other kinds of sounds.

Flash_N_Fade Using Standard Text Mode Python For Linux And Windows... (Python)

2012-07-15T18:38:43-07:00

Python recipe 578216 by Barry Walker (audio, demo, fade, flash, linux, sound, windows).

This DEMO shows how to fade text in shades of grey and also flash with inverse_flash along with simultaneous differing frequency beeps.

There are 2 code snippets that WILL need to be separated before use. One is a Linux version and the other a Windows 32 bit version. There is an AMIGA version but that is for much later.

There are NO notes inside the code so you will have to see the code as to how it works. It is SOOO simple that notes are/were unnecessary...

Bazza, G0LCU...

Random Sound FX Using WAV File (Python)

2012-07-01T19:54:17-07:00

Python recipe 578180 by FB36 (audio, sound).

It generates random sound effects using AM and FM.

Metronome For Beginner Musicians... (Python)

2012-05-18T19:30:04-07:00

Python recipe 578139 by Barry Walker (audio, demo, linux, metronome, music_accessory, sound). Revision 2.

This DEMO code is a simple metronome for the Linux platform. It is for newcomers to playing musical instruments as a timing unit for practicing with.

It is issued as Public Domain and you may do with it as you please...

The device /dev/dsp IS required for this to work. If your machine lacks this then install oss-compat from you distro's repository.

It exploits a flaw in the default /dev/dsp device inside linux...

The part of the code the uses Ctrl-C to exit a loop has a flaw. This is not a bug. I will let the big guns explain what is happening if they want to in the comments section.

Enjoy finding simple solutions to often very difficult pronblems...

Bazza, G0LCU...

Amplitude Modulation - Tremolo, Was:- An Audio/Sound Snippet For Linux... ;o) (Python)

2012-01-21T14:18:28-08:00

Python recipe 578013 by Barry Walker (amplitude, audio, demo, linux, mod, modulation, sound, tremolo). Revision 2.

This IS for the big guns as well as the amatuer...

I am always being told that too many comments inside any code is bad and that professional coders are clever enough to work out what a program does without comments...

So here goes! This snippet of code hits /dev/dsp in Linux and has no comments as to what it does. Make sure that /dev/dsp is available in your Linux install - if not then install oss.compat from your repository.

It needs Python 2.6 minimum, but may well work on a much earlier version

Don't run the code first but have a go at working out what it does and see if you are correct... ;o)

You can email me if you think you are/were correct:- wisecracker_at_tesco.net

Bear in mind I don't think this has ever been done before by hitting the /dev/dsp __directly__.

NOTE:- NO imports are required at all!!!

It runs for about 7 seconds before exiting...

Another BIG PLUS for Linux.

(I have a feeling poeple on here might like this, possibly even vote it up. ;)

Answer now at the bottom of this page...

Enjoy...

Bazza, G0LCU...

Simple Morse Code Practice Oscillator. (Python)

2012-01-09T22:49:05-08:00

Python recipe 578010 by Barry Walker (audio, code, demo, linux, morse, morse_code, morse_practice_oscillator, sound). Revision 2.

This is not for the big guns, but for the Amateur coder AND radio enthusiast.

It is a DEMO Morse Code Practice Oscillator that will allow the user to practice sending Morse code using the "o" and "p" keys as a PSEUDO-paddle key. It is set to around 8 WPM, (Words Per Minute). The code allows "O" and "P" to be used at around 12 WPM, when "Caps Lock" is turned on. Read the code for more informtion.

It is for at least standard text mode Python 2.5.2 to 2.7.2 using PCLinuxOS 2009 and Debian 6.0.0. It may well work at a much earlier version. I do have a version for Python 3.x.x but that will be uploaded elsewhere.

It is written in such a way that youngsters can understand what is going on.

Enjoy finding simple solutions to often very difficult problems... ;o)

Bazza, G0LCU...

Simple Morse Code Generator And Tutor. (Python)

2012-01-09T22:51:12-08:00

Python recipe 578009 by Barry Walker (audio, code, demo, generator, linux, morse, morse_code, sound). Revision 2.

This is not for the big guns, but for the Amateur coder AND radio enthusiast.

It is a DEMO Morse Code Generator and tutor that will generate the tones required for the original standard letters A to Z and numbers 0 to 9. Puctuation is NOT included but hey it is SOOOO simple to modify the code that I will let you, (the ones interested), do that for yourselves... ;o) Read the code for more informaton.

As it stands it _sends_ at around 8 WPM, (Words Per Minute).

It is written in such a way that youngsters can understand what is going on.

Enjoy finding simple solutions to often very difficult problems... ;o)

Bazza, G0LCU...

Yet Another Python Generator... (Python)

2011-12-19T08:14:55-08:00

Python recipe 577990 by Barry Walker (audio, demo, generator, linux, signal, sound, source, sweep).

Aha, but not what big guns were expecting...

LF Audio Sweep Generator.

Another kids level project to do for yourselves...

This is a Python DEMO to show the power of the sound card using Linux to generate an Audio Sweep Signal from 4KHz down to 100Hz and back again.

Written in such a way that anyone can understand how it works... This is for Linux and Python 2.x.x. Read the code for much more information, and...... A Python 3.x.x version is here:-

http://www.linuxformat.com/forums/viewtopic.php?t=14411

Enjoy finding simple solutions to often VERY difficult problems...

Bazza, G0LCU...

For AMIGA-Heads Only. Generating An Audio Signal In Text Mode Python. (Python)

2011-11-30T21:23:20-08:00

Python recipe 577971 by Barry Walker (amiga, audio, demo, e_uae, sound, winuae).

This DEMO is not for the big guns. It is aimed at those who still use a minimum of an ancient classic AMIGA A1200(HD), E-UAE, WinUAE, of which there are still a lot of us about...

No comments about the use of "eval()" as Python Version 1.4.0 does not have "int()" and this is designed to work on all versions of Python available for the above platform. See the code for minimum requirements and much more information.

MANY THANKS to Irmen de Jong for porting early versions of Python to the classic AMIGA to give we lowly users a taste of what was/is to come.

This code will probably make the professionals cough a little, but, boy what fun it is to see how powerful Python can be on an open platform like the AMIGA.

Written in such a way that anyone can understand how it works...

I really don't care how you vote this as it is for those, including professionals, who enjoy messing with AMIGA variants purely for fun and relaxation, and, to......

Enjoy finding simple solutions to often VERY difficult problems... ;o)

Bazza, G0LCU...