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Sonic Visualiser 2.4.1

A versatile and configurable audio analysis tool

by Mike Williams

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License: Open Source
Operating Systems: Linux, Mac OS X, Windows 7 (32 bit), Windows 7 (64 bit), Windows 8, Windows Server, Windows Vista (32 bit), Windows Vista (64 bit), Windows XP
Languages: English
Software Cost: Free
Date Updated: 26 November 2014
Watchlist: Add download to my watchlist
Downloads To Date: 935
Developer: Sonic Visualiser Team
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Sonic Visualiser 2.4.1
A versatile and configurable audio analysis tool

Sonic Visualiser is an open source application for viewing and analysing audio files.

At first glance, the program looks like many other audio tools. Open an audio file (MP3, OGG or WAV), a standard waveform is displayed, and you can scroll through it by clicking "Play".

You don't have to live with a single waveform, though. Sonic Visualiser can add more, perhaps giving separate views for the left, right and combined channels. There are spectrogram, melodic range, peak frequency and spectrum views, again based on your preferred channels, and you can display and combine as many as you need.

Each pane is exceptionally configurable: there are multiple channel views (Separate, Mean, Butterfly), scale options (dB, Linear, Meter), gain, pan and balance tweaks, amongst others.

This means you're able to view the same audio data in many different ways. Click "Play" and each pane displays its own custom view on the current track. Support for time-stretch playback (slowing down or speeding up while retaining a synchronised display) also helps you examine areas of interest.

Sonic Visualiser can then annotate your files by adding labelled time points, segments, point values and curves, and optionally overlaying these later.

And if this isn't enough, the program can be extended further with assorted free Vamp plugins. As we write, these include beat trackers; tempo and key estimators; pitch, tempo and note trackers; harmony and chord extraction; timbral and rhythmic similarity estimators, and plenty more.

Version 2.4.1 is a maintenance release.


Sonic Visualiser is a powerful and extremely configurable audio analysis tool. Don't be intimidated by the program's advanced capabilities, though - it's surprisingly easy to use, and you'll pick up the basics very quickly.

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Spotlight: Free Full Software

WhatsApp Messenger 2.12.11

Free Full Commercial Software

WhatsApp Messenger is the world's most popular instant messaging app for smartphones.

You can use it to send and receive text and voice messages, photos, videos, even call your friends in other countries, and because it uses your phone's internet connection it might not cost you anything at all (depending on whether you'll pay data charges).

It's easy to set up and use. There's no need to create and remember new account names or pins because it works with your phone number, and uses your regular address book to find and connect you with friends who use WhatsApp already.

You can talk one-to-one or in group chats, and because you're always logged in there's no way to miss messages. Even if your phone is turned off, WhatsApp will save your messages and display them as soon as you're back online.

There's plenty more (location sharing, contact exchange, message broadcasting) and the app is free for a year, currently $0.99/ year afterwards.

Version 2.12.11 brings:

• Links that you share or receive will now include a rich preview. When sending a link, you have the option to not include a rich preview.
• Additional 3D Touch features: You can now quickly Peek and Pop chats.
• Redesigned Settings tab. 
• You can now view all your starred messages across all your chats in Settings — Starred Messages.