Sponsored Content
Top Forums Shell Programming and Scripting A Crude 1KHz Audio Sinewave Generator Demo... Post 302760757 by DGPickett on Thursday 24th of January 2013 02:26:27 PM
Old 01-24-2013
I wonder how short the MP3 file would be?
 

7 More Discussions You Might Find Interesting

1. Programming

Python, Platform Independent, Pure Audio Sinewave Generator...

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
0 Replies

2. Windows & DOS: Issues & Discussions

A SOX 1KHz Sinewave Generator Using A Batch File...

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
0 Replies

3. UNIX for Dummies Questions & Answers

A crude random byte generator...

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.) This code uses hexdump just because I like hexdump for ease of... (2 Replies)
Discussion started by: wisecracker
2 Replies

4. OS X (Apple)

A Bash Audio Sweep Generator...

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
4 Replies

5. OS X (Apple)

An Audio Function Generator...

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
11 Replies

6. OS X (Apple)

Variable frequency audio generator...

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. I was going to generate differing sized waveforms on the fly but that would that would mean the frequencies are dependent on any... (2 Replies)
Discussion started by: wisecracker
2 Replies

7. OS X (Apple)

A simple variable frequency sinewave audio generator.

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. This is a DEMO only but a derivative of it will... (2 Replies)
Discussion started by: wisecracker
2 Replies
MP3::Tag::ID3v1(3pm)					User Contributed Perl Documentation				      MP3::Tag::ID3v1(3pm)

NAME
MP3::Tag::ID3v1 - Module for reading / writing ID3v1 tags of MP3 audio files SYNOPSIS
MP3::Tag::ID3v1 is designed to be called from the MP3::Tag module. use MP3::Tag; $mp3 = MP3::Tag->new($filename); # read an existing tag $mp3->get_tags(); $id3v1 = $mp3->{ID3v1} if exists $mp3->{ID3v1}; # or create a new tag $id3v1 = $mp3->new_tag("ID3v1"); See MP3::Tag for information on the above used functions. * Reading the tag print " Title: " .$id3v1->title . " "; print " Artist: " .$id3v1->artist . " "; print " Album: " .$id3v1->album . " "; print "Comment: " .$id3v1->comment . " "; print " Year: " .$id3v1->year . " "; print " Genre: " .$id3v1->genre . " "; print " Track: " .$id3v1->track . " "; # or at once @tagdata = $mp3->all(); foreach $tag (@tagdata) { print $tag; } * Changing / Writing the tag $id3v1->comment("This is only a Test Tag"); $id3v1->title("testing"); $id3v1->artist("Artest"); $id3v1->album("Test it"); $id3v1->year("1965"); $id3v1->track("5"); $id3v1->genre("Blues"); # or at once $id3v1->all("song title","artist","album","1900","comment",10,"Ska"); $id3v1->write_tag(); * Removing the tag from the file $id3v1->remove_tag(); AUTHOR
Thomas Geffert, thg@users.sourceforge.net DESCRIPTION
title(), artist(), album(), year(), comment(), track(), genre() $artist = $id3v1->artist; $artist = $id3v1->artist($artist); $album = $id3v1->album; $album = $id3v1->album($album); $year = $id3v1->year; $year = $id3v1->year($year); $comment = $id3v1->comment; $comment = $id3v1->comment($comment); $track = $id3v1->track; $track = $id3v1->track($track); $genre = $id3v1->genre; $genre = $id3v1->genre($genre); Use these functions to retrieve the date of these fields, or to set the data. $genre can be a string with the name of the genre, or a number describing the genre. all() @tagdata = $id3v1->all; @tagdata = $id3v1->all($title, $artist, $album, $year, $comment, $track, $genre); Returns all information of the tag in a list. You can use this sub also to set the data of the complete tag. The order of the data is always title, artist, album, year, comment, track, and genre. genre has to be a string with the name of the genre, or a number identifying the genre. fits_tag() warn "data truncated" unless $id3v1->fits_tag($hash); Check whether the info in ID3v1 tag fits into the format of the file. as_bin() $str = $id3v1->as_bin(); Returns the ID3v1 tag as a string. write_tag() $id3v1->write_tag(); [old name: writeTag() . The old name is still available, but you should use the new name] Writes the ID3v1 tag to the file. remove_tag() $id3v1->remove_tag(); Removes the ID3v1 tag from the file. Returns negative on failure, FALSE if no tag was found. (Caveat: only one tag is removed; some - broken - files may have many chain-loaded one after another; you may need to call remove_tag() in a loop to handle such beasts.) [old name: removeTag() . The old name is still available, but you should use the new name] genres() @allgenres = $id3v1->genres; $genreName = $id3v1->genres($genreID); $genreID = $id3v1->genres($genreName); Returns a list of all genres, or the according name or id to a given id or name. new() $id3v1 = MP3::Tag::ID3v1->new($mp3fileobj[, $create]); Generally called from MP3::Tag, because a $mp3fileobj is needed. If $create is true, a new tag is created. Otherwise undef is returned, if now ID3v1 tag is found in the $mp3obj. Please use $mp3 = MP3::Tag->new($filename); $id3v1 = $mp3->new_tag("ID3v1"); # Empty new tag or $mp3 = MP3::Tag->new($filename); $mp3->get_tags(); $id3v1 = $mp3->{ID3v1}; # Existing tag (if present) instead of using this function directly SEE ALSO
MP3::Tag, MP3::Tag::ID3v2 ID3v1 standard - http://www.id3.org COPYRIGHT
Copyright (c) 2000-2004 Thomas Geffert. All rights reserved. This program is free software; you can redistribute it and/or modify it under the terms of the Artistic License, distributed with Perl. perl v5.14.2 2009-11-28 MP3::Tag::ID3v1(3pm)
All times are GMT -4. The time now is 03:13 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy