MP3 waveforms with PHP

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If you are thinking how generates the waveform for sound MP3 player?


There are some audio processing libraries used to process MP3 files to WAV and then PNG / SVG images..

MP3 to WAV to PNG

1. LAME MP3 encoder/decoder

$ lame input.mp3 -f -m m -b 16 –resample 8 resampled.mp3 && lame –decode resampled.mp3 output.wav

2. SOX – Sound eXchange

$ sox output.wav −n spectrogram
$ sox output.wav -n spectrogram -Y 140 -l -r -o output.png

3. wav2png – Creates waveform pngs out of audio files

$ sox mp3-song.mp3 -c 1 -t wav – | wav2png -o mp3-song.png /dev/stdin
$ wav2png –foreground-color=2e4562ff –background-color=00000000 -o  output.png   input.wav

4. wavesurfer.js is a customizable audio waveform visualization, built on top of Web Audio API and HTML5 Canvas


<script src=""></script>
<script src=""></script>
<script src=""></script>

<div id="waveform"></div>


var wavesurfer = WaveSurfer.create({
container: '#waveform',
waveColor: '#00FF00',
progressColor: '#FF0000'


wavesurfer.on('ready', function () {;
$('.waveform__duration').text( formatTime(wavesurfer.getDuration()) );

wavesurfer.on('audioprocess', function () {
$('.waveform__counter').text( formatTime(wavesurfer.getCurrentTime()) );


WaveForm generated using SOX

WaveForm Generator using SOX


Audiojs.swf?playerInstance audiojs instances [%27audiojs0%27]

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If you are using audio.js as MP3 player or playlist …. on some browser it causing error 403 to access SWF file with player instance[%27audiojs0%27]&datetime=1382426114401.4087

You need to make sure you have right permission on that SWF file and check JavaScript playerInstance below….

Firefox Error

403 Forbidden[%27audiojs0%27]&datetime=1382426114401.4087


Just replace code (Original audio.js)

flashSource: ‘\
<object classid=”clsid:D27CDB6E-AE6D-11cf-96B8-444553540000″ id=”$1″ width=”1″ height=”1″ name=”$1″ style=”position: absolute; left: -1px;”> \
<param name=”movie” value=”$2?playerInstance=’+audiojs+’.instances[\’$1\’]&datetime=$3″> \
<param name=”allowscriptaccess” value=”always”> \
<embed name=”$1″ src=”$2?playerInstance=’+audiojs+’.instances[\’$1\’]&datetime=$3″ width=”1″ height=”1″ allowscriptaccess=”always”> \


flashSource: ‘\
<object classid=”clsid:D27CDB6E-AE6D-11cf-96B8-444553540000″ id=”$1″ width=”1″ height=”1″ name=”$1″ style=”position: absolute; left: -1px;”> \
<param name=”movie” value=”$2?playerInstance=’+audiojs+’.instances[&quot;$1&quot;]&datetime=$3″> \
<param name=”allowscriptaccess” value=”always”> \
<embed name=”$1″ src=”$2?playerInstance=’+audiojs+’.instances[&quot;$1&quot;]&datetime=$3″ width=”1″ height=”1″ allowscriptaccess=”always”> \

This is not permission (0755 or 0777) error of SWF file, Make sure you have valid characters on some browsers…

instances[\’$1\’] => instances[&quot;$1&quot;] 😉

Media Streaming CMS

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WMSPanel is reporting and control cloud panel for Nimble Streamer and Wowza Streaming Engine. It’s also used as a control UI for Live Transcoder for Nimble Streamer


Kaltura, the Open Source Community provides tools such as: online video player, open source editor and open source video for websites.

Kaltura CMS
Kaltura CMS

EZserver is an Easy-to-Use Video Server to let you easily install, manage and provide video service. And, it is also integrated with IP Blocker, Player Filter, Time Shift, DVR, Subscriber Management and Middleware for IPTV / OTT and VOD service.

Ezhometech IPTV server, Video Server, IPTV player, IPTV Middleware

MEDIA CONTROL PANEL – supports all media server types including shoutcast, icecast, wowza media and windows media services.

cast control

Streamio – Online Video CMS – Managing HD video content on websites, intranets and social media networks.


ViMP is the professional Video CMS for WebTV, Social Media portals and Video Communities with mobile and HTML5 support. We also offer associated transcoding, hosting und dedicated servers.

vimp media product

Manage online videos with Brightcove’s video Content Management System (CMS). Learn how to sort, manage and organize your entire video library with ease.


Build a centralized, searchable video library with Panopto Unison. Import, edit, and manage video of any format in Panopto’s powerful video CMS.

Online Video Platform - Panopto

Installing Apache, MySQL, PHP in Gentoo Server

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All commands are performed as root to install Apache, MySQL, PHP and phpMyAdmin in Gentoo Linux Server.

1. Update your System

# emerge –sync

2. Install Apache Webserver

# emerge apache

The web server ROOT is in /var/www/localhost/htdocs/

# /etc/init.d/apache2 start

Then go to http://server-ip/
it works on gentoo

Add apache2 to the startup script
# rc-update -v add apache2 default

3. Install MySQL Database

# emerge mysql

Install MySQL database
# /usr/bin/mysql_install_db

Start MySQL Server
# /etc/init.d/mysql start

Change MySQL User Password
# /usr/bin/mysqladmin -u root -h localhost password ‘new-password’

Test MySQL Server
# /etc/init.d/mysql restart

Add MySQL to the startup script
# rc-update -v add mysql default

4. Install the PHP with modules

# USE=”cli cgi apache2 xml mysql mysqli” emerge ‘dev-lang/php’

Before you can use PHP with Apache… Edit /etc/conf.d/apache2 and add “-D PHP5″ to APACHE2_OPTS

It looks like

You can find php.ini in /etc/php/apache2-php5.4

then restart apache server
# /etc/init.d/apache2 restart

Then go to http://server-ip/info.php (Create phpinfo() file)

phpinfo on gentoo
phpinfo on Gentoo

phpinfo php

phpinfo mysql

5. Install phpMyAdmin

# emerge -av phpmyadmin

Then go to http://server-ip/phpmyadmin/

phpMyAdmin on gentoo
phpMyAdmin on Gentoo

Install Airtime – open source radio automation software

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Airtime is open source radio automation software (GPL v3) for GNU/Linux platforms. It’s recommend installing on Ubuntu Linux 12.04 LTS or Debian Squeeze on a computer with at least a 1 GHz processor and 512 MB of RAM for a Server Edition OS or 1GB of RAM for a Desktop Edition OS.

Download airtime-easy-setup

$ sudo wget
$ sudo apt-get install gdebi

$ sudo gdebi airtime-easy-setup.deb


Unpacking airtime-easy-setup (from airtime-easy-setup.deb) …
Setting up airtime-easy-setup (2.3.0-1) …
Installing Sourcefabric package signing key…
Setting up Airtime for Etc/UTC timezone…
Setting Icecast and Airtime domain names to ip-10-xxx-yy-74.ec2.internal…
Setting defaults for non-interactive installation…
Checking that the server has a UTF-8 locale…
en_US.UTF-8 is the default locale on this server and appears to support UTF-8 encoding.

Now please run the commands:

sudo apt-get update
sudo apt-get install airtime

After that, installation of Airtime should be complete in a couple of minutes.

You should then be able to log in to Airtime at http://ip-10-xxx-yy-74.ec2.internal/
Processing triggers for man-db …

Install Airtime

$ sudo apt-get update
$ sudo apt-get install airtime

*** Verifying your system environment, running airtime-check-system ***
AIRTIME_STATUS_URL = http://ip-10-xxx-yy-74.ec2.internal:80/api/status/format/json/api_key/%%api_key%%
KERNEL_VERSION = 3.5.0-21-generic
OS = Ubuntu 12.10 x86_64
CPU = Intel(R) Xeon(R) CPU E5430 @ 2.66GHz
WEB_SERVER = Apache/2.2.22 (Ubuntu)
— Your installation of Airtime looks OK!

******************************* Install Complete *******************************
Setting up liquidsoap-plugin-faad (1.0.1+repack1-1) …
Processing triggers for libc-bin …
ldconfig deferred processing now taking place



Best PHP Encryption Decryption

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I was working on Secured & Expired MP3 Link in HTML5 MP3 Player. Hope you already read previous article “Amazon S3 Expiring Link”

You can use below code for hiding real mp3 link inside html source using base64_encode, mcrypt_encrypt, base64_decode, mcrypt_decrypt and md5.

This function is also useful when you need to secure & expire media links …

Remote Secure Token
Secure Token Plugin with PHP
JavaScript Encryption Library


function encryptDecrypt($key, $string, $decrypt)
        $string = str_replace("|", "/", $string);
        $decrypted = rtrim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, md5($key), base64_decode($string), MCRYPT_MODE_CBC, md5(md5($key))), "12");
        return $decrypted;
        $encrypted = base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, md5($key), $string, MCRYPT_MODE_CBC, md5(md5($key))));        
        $stripping = true;
        while ($stripping){
         if(substr($encrypted, -1) == "="){
         $encrypted = substr($encrypted, 0, strlen($encrypted)-1);
        } else {
         $stripping = false;
        return str_replace("/", "|", $encrypted);

$echo = encryptDecrypt("123", "", 0);
echo $echo."<br>";
echo encryptDecrypt("123", $echo, 1);





Free Cloud Server Hosting

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Benefits of Free Cloud Hosting

* Self-Managed with Console
* Free storage
* Easy application deployment
* Production ready apps
* Cloud hosts (IaaS)
* Automatic backup & recovery
* Server resizing
* Migration facility
* Portability
* Cloud portability
* Free bandwidth
* Enhanced performance
* High availability of resources
* Data storage redundancy
* Growth flexibility
* Economical

AWS Free Usage Tier

Deploy a Sample Web Application in the Free Usage Tier
Deploy a Sample Web Application in the Free Usage Tier

Google App Engine – Easy to build, Easy to scale, Easy to maintain
Try Free … Google Cloud Storage, Google BigQuery and Google Cloud SQL

Google App Engine — Google Developers
Google App Engine — Google Developers

PHPCloud – Zend Developer Cloud, as its name suggests, a cloud-based environment designed to help you code more quickly and more efficiently. It includes a robust PHP stack, advanced debugging capabilities, collaboration tools and much more. Zend Developer Cloud is only a few clicks away and does not require any installation. To make it even better, it’s absolutely free!

PHP Cloud
PHP Cloud

HP Cloud – Open source-based public cloud computing HP tailored for developers and enterprise. Ready-to-use Storage, PaaS, IaaS, solutions from a rich partner community.

Cloud Computing - HP Cloud Services - Storage
Cloud Computing – HP Cloud Services – Storage

AppFog – The Best Public Cloud PaaS, Now Available on Private Clouds Simple, elegant, and modern way to develop and deploy apps. Unlimited apps within 2GB RAM, Up to 8 service instances 100MB per MySQL or PostgreSQL instance. Rock-solid Cloud Platform for PHP by AppFog.

AppFog- PaaS for Public and Private Clouds
AppFog- PaaS for Public and Private Clouds

Xeround – A ridiculously simple, seriously powerful CLOUD DATABASE Xeround is an elastic, always-on database-as-a-service for your MySQL applications.

Cloud Database
Cloud Database

ClearDB is a reliable, fault tolerant database-as-a-service for your MySQL powered applications.

ClearDB - The Ultra Reliable, Globally Distributed Cloud Database For Your MySQL Applications
ClearDB – The Ultra Reliable, Globally Distributed Cloud Database For Your MySQL Applications

Gozure is cloud hosting built for website and blog owners. Run WordPress, Joomla, Drupal, and many other web applications on our powerful platform and get started for free. Gozure uses a simple control panel so no technical experience is necessary.

Gozure - Free Cloud Hosting
Gozure – Free Cloud Hosting

BitNami provides free, ready to run environments for your favorite open source web applications and frameworks, including Drupal, Joomla!, WordPress, PHP, Rails, Django and many more. And with BitNami Cloud Hosting, enjoy automatic backups, monitoring, and more.

BitNami- Open Source. Simplified
BitNami- Open Source. Simplified

PagodaBox is a relatively new Cloud PaaS provider, accessed at PagodaBox markets itself is a PHP specialist. This is proven by the fact that PagodaBox features popular PHP projects like PyroCMS, WordPress, Kohana and CodeIgniter for easy 1-click installations.

Premier Cloud Hosting
Premier Cloud Hosting

OpenShift is Red Hat’s free, auto-scaling Platform as a Service (PaaS) for applications. As an application platform in the cloud, OpenShift manages the stack so you can focus on your code.

OpenShift by Red Hat
OpenShift by Red Hat

Cloud Foundry – Deploy and scale applications in seconds, without locking yourself into a single cloud.

Cloud Foundry
Cloud Foundry

Apprenda is an Open Platform as a Service (PaaS) stack that enables any organization to transform their existing infrastructure into a self-service cloud application platform.

Open Platform as a Service (PaaS) for .NET - Apprenda
Open Platform as a Service (PaaS) for .NET – Apprenda

The CloudBees Platform as a Service (PaaS) architecture provides a powerful foundation for cloud development and deployment services.

CloudBees- The Java PaaS Company
CloudBees- The Java PaaS Company

Orchestra is a Platform as a Service for deploying (PHP Hosting), scaling and managing PHP applications. Built on Amazon Web Services, it integrates with your workflow, autoscales up and down and gives you extra capabilities with powerful add-ons. Engine Yard provides a portfolio of options that let you begin deploying for your applications for free and then allows you to upgrade to elastic, dedicated resources when you’re ready to go into production. Think Orchestra PHP hosting for PHP development.

Ruby On Rails and PHP Cloud Hosting PaaS - Managed Rails Development - Engine Yard Platform as a Service
Ruby On Rails and PHP Cloud Hosting PaaS – Managed Rails Development – Engine Yard Platform as a Service

Jelastic Java Host – Rock-solid Java in the Cloud Auto-scales. Easy to deploy. Runs ANY Java app.

Jelastic — Top Java Host, Rock-Solid Java in the Cloud, Java Server Hosting, Java Cloud Computing
Jelastic — Top Java Host, Rock-Solid Java in the Cloud, Java Server Hosting, Java Cloud Computing

dotCloud – Build your ideal application stack by combining powerful cloud services. Experiment for free, then go live and only pay for what you need.

dotCloud - One home for all your apps
dotCloud – One home for all your apps

Cloudflare – Give us five minutes and we’ll supercharge your website.

CloudFlare - The web performance & security
CloudFlare – The web performance & security

And Many More ……..

If you are really interested in Cloud Computing, you can find more “Free PaaS” or “Free Cloud” to take advantage of free cloud hosting 😉

Responsive One Page HTML5 Templates

Hits: 6910  

I was searching one single page responsive HTML5 template for my product’s website. To sell your products you must have a introductory video and basic features on home page, that can help you to attract more customers..

You might include these items on home page…

– Top Navigation
– Introductory Video / Images
– Offer Price
– Featrues
– Technologies
– Payment Options
– Terms of Use
– Privacy
– Contact information

I have searched some templates .. hope you like below HTML5 themes 😉

Designed with the latest technologies and most advanced techniques, this one-page website loads lightning-fast!

The layout focus on usability, it offers enterprise-level features, design quality, technical implementation, compatibility, accessibility and performance.

Spark - Simple and effective
Spark – Simple and effective

Project Source bring Clarity and Efficiency to Your Content. It combines speed, usability and attractiveness.

Project Source – Lightning Speed
Project Source – Lightning Speed

Human is Responsive HTML5 theme, clean, simple theme, best suitable for company, personal or agency related websites. Please find bellow the main features of the theme.

Human Page
Human Page

Puree App Landing page if fully responsive, that means no matter what screen size your visitors are using your site will look and function great! The Puree App Template also comes touch enabled out of the box making the image slider and the rest of your site feel more native and freindly then ever on touch screen devices. The desktop has not been left out, Puree will also look good in pretty much every popular web browser on the internet!

Puree - Responsive App Landing Page Template
Puree – Responsive App Landing Page Template


LX Portfolio - Single Page Responsive Portfolio
LX Portfolio – Single Page Responsive Portfolio

SmartStart is a simple and clean but still professional template suitable for any business or portfolio, and it’s created by using the latest HTML5 and CSS3 techniques. With a responsive design it is easily usable with any device (Desktop, tablet, mobile phone), without removing any content!

Home - SmartStart
Home – SmartStart

Locus is a jQuery enhanced responsive HTML template with Filtered portfolio, One page news, three different skins and more.

Locus - Responsive One Page Template
Locus – Responsive One Page Template

Box Two, a responsive single page portfolio. Try using J and U buttons on your keyboard for quick scrolling.

Box Two - A Responsive One Page Theme
Box Two – A Responsive One Page Theme

Moloko is built with Twitter Bootstrap. It is Responsive, Sleek, intuitive, and powerful front-end framework for faster and easier web development.

Moloko By Josweb
Moloko By Josweb

Initializr is an HTML5 templates generator to help you getting started with a new project based on HTML5 Boilerplate. It generates for you a clean customizable template with just what you need to start!

Initializr - Start an HTML5 Boilerplate project in 15 seconds!
Initializr – Start an HTML5 Boilerplate project in 15 seconds!

Rythm is based on the Bootstrap CSS framework, which provides a future-proof foundation for the design and layout.

Rythm - Responsive One-Page Template
Rythm – Responsive One-Page Template

Artix, built with Twitter Bootstrap.

Artix By Josweb
Artix By Josweb

Aura is beautiful websites, elgant themes and stunning visual designs.

Aura v3.0 by Designova - Responsive Bootstrap HTML5
Aura v3.0 by Designova – Responsive Bootstrap HTML5

Aside360° is a responsive One-Page HTML5 template with grid system layout.

Aside360° - Responsive HTML5 One-Page Template
Aside360° – Responsive HTML5 One-Page Template

Build your business on Google Cloud Platform

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Hope you already read my old article “Application Setup on Google App Engine”

Google Cloud Platform allows to build applications and websites, store and analyze data on Google’s infrastructure.

Google Cloud Platform
Google Cloud Platform

Features of Google Cloud Platform

* Scale your app – Take advantage of the speed and scale of Google’s applications.

* Focus on building – Deal with capacity planning and data center infrastructure.

* Save on costs – Pay only for what used.

* Fast Data Access – Quick and easy access to data around multiple regions.

* Reliable & Secure infrastructure – Google provides highly available, robust storage for your mission-critical data.

* Unlimited Storage – Store and manage unlimited number of objects within Application.

* Fully managed – Google will take care of replication, patch management or database management.

Solutions on Google Cloud Platform

Google App Engine
Google Cloud Storage
Google BigQuery
Google Cloud SQL
Google Compute Engine
Google Prediction API
Google Translation API

Google Cloud Platform
Google Cloud Platform

Over 1M applications run on Google Cloud Platform

Build Apps and Websites – Build apps and websites on Google’s infrastructure with Google App Engine.

Compute at Google Scale – Run Linux Virtual Machines in the cloud using Google Compute Engine.

Store your Data – Store and manage data on Google’s infrastructure with Google Cloud Storage.

Analyze Big Data – Analyze Big Data at astonishing speed using Google BigQuery.

Mobile Apps using Google App Engine

Google App Engine provide friction-less development environment to makes scale-able mobile back-end on Google’s infrastructure with less worries.

It goes live fast, scale infinitely and get started easily…

Business on Google Cloud Platform

Business on Google Cloud Platform
Business on Google Cloud Platform

You can download SDK to start building your app on Google App Engine.

If you are interested for creating Applications on Google Cloud Platform … Please Contact us

Email: svnlabs[at]
Skype: svnlabs
MSN: svnlabs[at]