01-25-2013
Hi DGPickett...
Certainly not 8 bytes for a single shot, that is for sure!
If it is possible to generate a "sinewave.mp3" _sinewave_ file, or any known waveshape for that matter, for 8 seconds inside 7 simple lines of code that anyone can understand without first recording said waveform then I would be mighty interested... ;o)
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1. Programming
IKHz_SW_OSX.py
A DEMO mono _pure_ sinewave generator using standard text mode Python 2.6.7 to at least 2.7.3.
This code is EASILY modifyable to Python version 3.x.x...
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...... (0 Replies)
Discussion started by: wisecracker
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2. Windows & DOS: Issues & Discussions
Hi all...
I don't think this has been done before but I am open to being corrected...
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... (0 Replies)
Discussion started by: wisecracker
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3. UNIX for Dummies Questions & Answers
There was an upload recently on generating a pseudo-random file when /dev/random does NOT exist.
This does not need /dev/random, /dev/urandom or $RANDOM either...
(I assume $RANDOM relies on the /dev/random device in some way.)
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Discussion started by: wisecracker
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4. OS X (Apple)
This is a small program as a tester for a basic sweep generator for bandwidth testing of AudioScope.sh.
This DEMO is only capable of 4KHz down to about 85Hz and back due to the low bit rate, but it is proof of concept for a much wider variant using a much higher bit rate.
The file generated... (4 Replies)
Discussion started by: wisecracker
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5. OS X (Apple)
Ok guys, gals and geeks...
As from today I am starting to learn awk in earnest doing something totally different.
I am going to create a pseudo-Audio_Function Generator centred around OSX 10.11.x minimum. The code below is a tester to see what the possibilities are.
All waveforms will be... (11 Replies)
Discussion started by: wisecracker
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6. OS X (Apple)
Hi all...
I intend to do an Audio Function Generator using Awk, (already started thanks to Don), but the biggest thing I have struggled with was variable frequency.
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Discussion started by: wisecracker
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7. OS X (Apple)
Hi all...
Well I have not been inactive but working out how to make OSX 10.14.x command line audio player have a variable sample rate.
This is a back door as afplay does not have a sample rate flag unlike aplay for ALSA, in Linux flavours.
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Discussion started by: wisecracker
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LEARN ABOUT HPUX
send_sound
send_sound(1) General Commands Manual send_sound(1)
NAME
send_sound - play an audio file
SYNOPSIS
[-format_switch] [] [] [] [] []
DESCRIPTION
This command plays an audio file. is the command used when you double-click an audio file from the HP VUE File Manager. The file begins
playing, according to the settings of the Audio Control Panel.
is one these formats:
Sun file format
NeXT file format
Microsoft RIFF Waveform file format
MuLaw format
ALaw
linear 16-bit format
offset (unsigned) linear 8-bit format
linear 8-bit format
If you omit the filename with this option, plays the audio data from
plays the file on the output of an audio server
identified by system which is either a system name or a TCP/IP address.
plays the file the
number of times you supply. Note that you cannot use this option if the source is a filename is required.
plays file with the
priority you supply, either or
sets the sample
rate of the source audio.
plays the audio file at the sampling
rate you enter.
plays a stereo file. This option
is needed only for a raw data file with stereo data.
AUTHOR
was developed by HP.
NeXT is a trademark of NeXT Computers, Inc.
Microsoft is a trademark of Microsoft Corporation.
SEE ALSO
audio(5), asecure(1M), aserver(1M), attributes(1), convert(1).
send_sound(1)