Popular recipes tagged "sound" but not "demo"

A white noise generator to sooth baby to sleep. (Bash)

2017-05-13T12:12:30-07:00

Bash recipe 580801 by Barry Walker (alarm, apple, audio, baby_alarm, cygwin, linux, noise, sleep, sound, whitenoise).

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.

Usage:- [./]shush.sh <time in seconds from 18 to 2700> [sensitivity [Hh|Mm|Ll]]<CR>

If time is omitted it defaults to 2 bursts of 9 seconds each and if sensitivity is omitted defaults to [M]edium.

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.

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.

Enjoy...

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.

A Function To Create A 1 Second Sinewave WAVE Beep File. (Python)

2014-11-23T19:24:46-08:00

Python recipe 578971 by Barry Walker (amiga, apple, audio, beep, error_beep, error_sound, e_uae, linux, sinewave, sound, wav, wave, windows, winuae).

sinebeep.py

Creating an audio file called...

beep.wav

...that can be played using almost ANY audio player available.

This simple snippet of code generates a 1 second sinewave WAVE file. It IS saved inside the CURRENT drawer so that you can find it... ;o)

This works on:- Classic stock AMIGA A1200, using Python 1.4.0. WinUAE and E-UAE, AmigaOS 3.0.x using Python 1.4.0 to 2.0.1. Windows, to at least 7, using Python 2.0.1 to 3.3.2. Various Linux flavours using Python 2.4.6 to 3.2.2. Apple OSX 10.7.x and above using Python 2.5.6 to 3.4.1.

The file size is 8044 bytes and _IF_ you need to it can be palyed directly without a player on some Linux flavours that have the /dev/dsp device. It is an 8 bit, unsigned integer, mono, 8000Hz sampling speed 8000 byte RAW file with the WAVE header added.

It will still work with PulseAudio and OSS using...

cat /full/path/to/beep.wav > /dev/dsp

...but with a momenatry click due to the 44 header bytes; but hey it is a beep alternative...

Enjoy finding simple solutions to often very difficult problems.

Bazza.

A Bash Beep Command For OSX 10.7+... (Bash)

2014-02-27T19:36:17-08:00

Bash recipe 578837 by Barry Walker (apple, audio, bash, beep, error_beep, error_sound, linux, macbook_pro, sound).

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.

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.

The wave file can be found as "/tmp/sinewave.wav" during the working session(s) and can be saved anywhere of your choice.

Enjoy...

(Watch for word wrapping etc...)

Bazza.

A FUN Bash Shell Bomb-Out Error Sound... (Bash)

2013-07-14T19:31:13-07:00

Bash recipe 578605 by Barry Walker (apple, audio, bash, error_beep, error_sound, linux, macbook_pro, sound, sound_exchange, sox).

Do you remember the Bomb-Out icon(s) that appeared on some computers' SW and HW many years ago...

Well this is a matching sound to go with it and can be used as a critical error sound.

It sounds like a bomb being dropped from an aeroplane and is purely a shell sript only.

It is set up to run SOund eXchange, SOX, but just by editing the code "/dev/dsp" can be used instead.

Read the code for more informastion.

Enjoy...

Bazza...

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...

Play a Sound File in Python using PyGame (Python)

2013-01-08T18:08:55-08:00

Python recipe 578410 by Captain DeadBones (pygame, python, sound).

This is how you can play an ogg sound file in python using the pygame library. This is part of an article about Morse Code and Dictionaries in Python

Samuel F. B. Morse's Code (Python)

2012-12-06T04:20:31-08:00

Python recipe 578364 by Stephen Chappell (code, demonstration, morse, morse_code, morse_practice_oscillator, sound).

Many people have heard of Morse['s] Code, and it still is a helpful skill to have in certain context, as advanced as technology has become. The following recipe shows two sample ways that it can be implemented and shows some diversity in how problems can be solved in Python or many other languages for that matter.

Countdown Timer (Python)

2012-12-06T03:24:35-08:00

Python recipe 578363 by Stephen Chappell (demonstration, sound, timer, utility).

Ever wanted to set a timer that went off after a specified number of hours / minutes / seconds? This Windows recipe runs on the command line and does that with the arguments it accepts. Simple but effective, the program works well for remembering food in the oven among other things.

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.

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.

Sound in the STL (Python)

2011-08-15T09:28:12-07:00

Python recipe 577843 by Russell Foster (audio, game, sound, stl).

I get to use a number of languages and have found Python lacks good sound implementation in it's STL. Sure you can download a module, but many organisations make it difficult to install add ons, and when you hand apps to people you don't want to have to say, first install python, then install x, y, z from these websites. The STL needs to have a module added in that handles sound cross platform. I have noticed people are happy with PyGame. Perhaps adding that to the STL would be good for everybody?

Clear screen and beep for various platforms. (Python)

2011-02-26T14:26:02-08:00

Python recipe 577588 by Barry Walker (amiga, audio, beep, clearscreen, display, error_beep, error_sound, e_uae, linux, screenclear, sound, windows, winuae).

This little module gives a clear screen and beep for the classic AMIGA, WinUAE, Windows and Linux all in CLI/Command-Prompt/Terminal mode.

It works from Python 1.4.x to 2.7.x; talk about backwards compatibility... ;oD With very little modification it will work on Python 3.x.x easily.)

See the file clsbeep.py attached for more information.

it is saved as clsbeep.py and placed into the Python - Lib drawer or where-ever the modules are located and called as a module:-

>>> import clsbeep

Its usage is:-

clsbeep.cls() and clears the screen. clsbeep.beep() and creates an error beep. clsbeep.both() creates an error beep first then clears the screen.

It is Public Domain and if you modify it to suit other platforms please let me have a copy of your code... :)

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

Launch virtualbox with emulated USB microphones (Python)

2010-12-14T14:53:07-08:00

Python recipe 577467 by Joseph Reagle (sound, virtualbox). Revision 4.

A small Python script that sets sound emulation variables for a particular USB microphone that you want to use, and sets the microphone volume level, since that is often set at zero in the Linux context.

Play sound files with pygame in a cross-platform manner (Python)

2007-06-21T14:16:58-07:00

Python recipe 521884 by Chris Arndt (multimedia, pygame, sound, sysadmin). Revision 4.

This simple script shows how to play back a sound file using the mixer module from the pygame library. If you have pygame installed, this will work on all major platforms. The mixer module supports WAV and OGG files with many different sample rates, bits per sample and channels. The script will play back all supported files given on the command line sequentially.