miDVD Pro is our brand-new DVD creator that builds on the features of miDVD, and it's now live on the Mac App Store!
miDVD (the free one) has shot up the Mac App Store charts on its first day. It's now number 4 and rising on the Video free app chart in all major countries.
miDVD Pro gives all of this:
- Smart Themes - great looking themes for your DVD menu. The themes automatically adapt to the number of movies you have.
- Multiple Movies - each miDVD project can hold up to 16 movies.
- Projects - save your miDVD Project files for later or.
- Soundtracks - add music of your choice to your DVD menu.
- everything from miDVD - and of course everything else from miDVD - media browser, previewing, top quality conversions, etc, etc
miDVD Pro is $19.99 as a special discounted launch price. Do yourself a favour and get it today!
This update moves Cosmos away from syncing with online Cosmos accounts, back to being a video manager.
We have decided to re-focus Cosmos back on video management so that we can move the (old) Cosmos iOS application and service in a new direction.
In the coming months we will re-launch the Cosmos iPhone and iPad photo-sharing app with a new name to focus on what this app can be used best for.
For those people using the desktop version of Cosmos to manage their Cosmos account, stay-tuned. We will have a FREE version of the renamed Cosmos out soon to let you manage your online account easily.
Smart Converter and Smart Converter Pro version 1.4.3 are now available on the Mac App Store and shedworx.com.
This updates brings in support for the Apple TV 2, the iPad 3 and iPhone 4.
The new presets for Apple TV and iPad support video up to 1080p with higher bit rates.
We have left the main presets (the ones on the main Smart Converter window) at lower settings because you really can't tell the difference between 720p and 1080p, especially on an iPad.
The new high resolution settings can be found under the 'Other' menu.
We've had a huge amount of interest in PS Vita support for Smart Converter Pro.
Any excuse to muck around with a new gaming console rather than do real work goes down well at Shedworx, so we thought we'd do the right thing and give it a go.
First up: Video
Our first challenge was to get our entire video test set converting, transferring and playing back on the PS Vita. While this work ate into valuable gaming time, we thought we should get this out of the way.
After a couple of days of testing and tweaking settings, making a few changes here and there, we were good to go.
The PS Vita will play video files up to 960x540 in size, using the h.264 codec and MP4 container. You won't see any Smart Converter ''Fast" conversions when converting for the PS Vita because of its obscure resolution. This means that every file you convert has to be converted in full.
Click here to learn more about Smart conversions.
Luckily, Smart Converter is now multi-core enabled, so these conversions will fly along, especially on new quad core Macs.
On my new MacBook Pro I converted a 25 minute video to PS Vita format in 3 minutes. Too easy!
Transferring Files using your Mac
You have to run the Content Manager Assistant on your Mac in order to transfer any files. The Vita won't mount as a drive, so you have to run this app. Fortunately there is a Mac installer for this, so download it from Sony here.
The Content Manager Assistant requires you to nominate where your photos, videos and music files will come from. I set up a PS Vita folder under Photos, Movies and Music to use for my transfers.
I then set up Smart Converter Pro to put all converted movies into the Movies/PS Vita folder, ready for transfer.
Once my batch conversion was done, I plugged in the Vita via the (supplied) USB cable. You then have to start Content Manager on the Vita, go to Video and you will see the movies on your Mac. Tap Select All and they will all copy over.
Movies on the PS Vita
The PS Vita has a 960x544 OLED screen which is quite a bit bigger than the iPhone but also quite a bit clearer.
Movies down sampled from Full HD 1080p look as sharp as ever and even with the bigger screen size makes for a far better viewing experience than to the iPhone. I've comfortably watched a full length movie on the Vita whereas I can't put up with the iPhone sized screen for that long.
We're not huge gamers here at Shedworx but we had to give a few titles a go. Golden Abyss: Uncharted is by far the favorite and really shows you what the PS Vita is all about.
We've all heard how the iPhone and iPod Touch are killing the small handheld consoles like the Nintendo DS and previous Playstation PSP.
Not any more.
Play one game on the PS Vita and every iPhone game looks very lame. So what's the big deal? The screen is lower resolution, graphics are technically no better. It comes down to the high-end games like Uncharted. Here's what makes the PS Vita a killer gaming platform.
Bigger all round
The PS Vita has a 5" screen over the iPhone 3.5" screen. This means that the PS Vita screen has almost twice the surface area of the iPhone - a huge difference when it comes to games.
The bigger unit also fits far better in the hand compared to the iPhone. After using the Vita, the iPhone feels pokey and cramped.
The PS Vita has an OLED screen which basically just performs better than the TFT screens on iPhones and iPads.
OLED screens offer better contrast, better viewing in full sunlight and faster response times than TFT screens. These characteristics mean that the PS Vita OLED screen just looks better than the iPhone screen, even though it's lower resolution.
You can't play these complex games on an iPhone because you lose half the screen to your thumbs. The two joystick controllers let you control the main part of the game with the right stick while using the left to change viewpoint.
As a novice gamer, I found the PS Vita controllers far easier to use than the touch screen on an iPad or iPhone.
Two button pads
Old school Playstation gamers will recognize the traditional Playstation button set on the right of the Vita. These buttons are used for the usual Jump and Shoot actions.
6 axis gyro
Sure, the iPhone has a gyro too, but the Vita games that we've seen so far make great use of the gyro.
The Camera in Uncharted uses the gyro to make you hold the camera level, front touch screen to zoom in/out and one of the buttons to take the photo. It sounds a bit complex but it becomes quite instinctive to use after a couple of goes.
Front touch screen
Again, the iPhone has this too, but this makes a big difference to how the PS Vita works compared to the older PSP. The whole device can be driven by touch now, so that you only switch to the buttons and joysticks when in game mode. This makes for a far better device than the PSP.
Rear touch screen
We didn't even notice this one until Uncharted got going. Using a back touch screen opens up a whole new world of games and puzzles that I'm sure will be embedded in more and more games.
I think that Sony may finally have a hit on its hands with the PS Vita. We test just about every possible tech gadget that comes along here at Shedworx and we all think that the PS Vita is awesome.
The PS Vita really is a full blown Playstation in your pocket. Fantastic game play with solid video, photo and music capabilities make it a real winner.
We've hit the Turbo button on Smart Converter and Smart Converter Pro!
The 'smarts' behind Smart Converter mean that we often don't need to convert a video when going from one format to another. This gives you lightning fast conversions.
For times when we can't do a 'smart' conversion, we have to do things the regular way, which can take a while.
Up until now Smart Converter only used one core of your CPU in regular mode. Now Smart Converter and Smart Converter Pro use all cores of your CPU. With all new Macs now shipping with Quad Core CPUs, multi-core processing means that Smart Converter will go at least 4 times as fast for regular conversions.
This update also includes a few bug fixes and a re-vamp of the way we handle Flash Video conversions. Any problems you might have had with flv video will now be fixed.
Our most highly-read blog post in years was Video Formats Uncovered which explained the ins and outs of video files and the details behind them.
With the successful launch of Music Converter and Music Converter Pro behind us, we thought it was time to give music files the same treatment.
Let's begin by looking at the creation of digital audio, because this will help us to understand the terms that we so often encounter, both on the web, and in software like iTunes and our own Music Converters.
When you create a digital audio file from a 'real-world' piece of music or sound you have to decide on a couple of things:
- how often to take a sample of the sound wave to create the digital file. This is referred to as the Sample Rate; and
- how precisely you represent each of those samples. This is referred to as the Sample Size.
These two factors combined go a long way to determining the quality of the resulting digital sound file, and also its file size.
So the sample rate is how frequently a sample is taken of the sound wave to create the digital file.
You can think of sample rate as being similar to the frame rate on a movie. Low frame rates result in 'jumpy' videos. High frame rates give you a smooth playing video.
Sample rates are usually stated in kilohertz (kHz), which means one thousand samples per second of audio. A typical sample rate (for CD quality music) is 44.1 kHz, which means that every second of audio is sampled 44,100 times when creating the digital file for the CD.
Another common sample rate is 48 kHz, which is often used for movie soundtracks. Higher sample rates, such as 96 kHz and even 192 kHz are sometimes used to satisfy very high quality audio requirements.
When the audio file is sampled, all of the 'samples' are stored within the digital file, and the size of the data (in bits) used to store each sample is the Sample Size. If you like, this is the preciseness or granularity of each stored sample.
You can think of the sample size as being akin to the number of megapixels used to store a digital image - the more there are, the better the quality.
Commonly used sample sizes are 16 and 24 bit. A digital file with a 16 bit sample size means that each sample (yes, each of the 44,100 samples per second of audio) is represented using 16 bits of data.
Image here showing comparison.
So the higher the sample size, the higher the quality of each stored sample - more bits means higher quality.
The word codec is shorthand for the term coder/decoder.
A codec is the file format and compression technique used to turn a real-world audio signal into a digital file or stream of data.
A codec relates only to the actual audio streams within an audio file, not the file format itself.
What About Bit Rate?
In audio files, the bit rate is a derived value. Files aren't recorded at a bit rate. Files end up with a bit rate, based on the sampling frequency and the sample size used.
Let's look at a common audio recording. Let's say the audio was recorded at 44.1 kHz with a 24 bit sample size. This would give us 44,100 x 24 bits per second, which is 1,058,400 bits per second or about 1,000 kilobits per second (that's 1,000k). This is only one channel, so to get a stereo recording we need two channels. That gives us a total bit rate of about 2,000k.
Your iPod or iPhone can handle up to 320k only, so how does this work? The answer is compression! MP3 and AAC are compressed formats which reduce the size considerably. That brings us to encoding types.
The first type of encoding that we will look at is No Compression. This means that no mathematical compression algorithm is applied to the digitally encoded audio stream.
Uncompressed audio is recorded using a technique call PCM (Pulse Code Modulation) and stored in file types such as WAV and AIFF. More on these later, but for now just be aware audio files don't necessarily get compressed at all in some cases.
When audio data is compressed, there are two types of compression - lossless and lossy.
Lossless compression is a compression type where the original data can be completely recovered from the compressed data. Data compression is a complex topic of its own, but here's an idea of what goes on.
Let's say we have an original piece of data that contains 100 bits in a row, all set to "1". The raw form of this data would take up 100 bits of space. This data could be compressed into far fewer bits using a compression technique. The technique could involve recording the number 100 and the bit "1". The number 100 can be recorded using 7 bits of space. Hey presto, you've compressed 100 bits into 8!
This is a lossless compression technique because we can take our 8 bits of data and, knowing the compression algorithm used, can re-construct the original data.
Examples of lossless audio compression codecs include FLAC and Apple Lossless (ALAC).
Lossy compression techniques take the compression even further to the point that the original data cannot be fully recovered. While you would never use a lossy compression technique for data files, it can be applied to audio since many devices (and humans!) can't tell the difference when the audio is downgraded slightly.
Examples of lossy audio compression codecs include MP3 and AAC.
Why would you use a lossy compression technique? Lossy compression codecs create smaller files.
Audio files include a file container, metadata and data streams.
Unlike video files, audio files usually have a one-to-one alignment between codecs and file formats. For example, the MP3 audio codec also has a corresponding MP3 file format.
Common file formats include:
- MP3 - Moving Picture Expert Group Layer 3. The most popular codec and file format in use today.
- M4A - Apple's file format for audio. This is really a Quicktime container containing audio only. This can contain AAC or ALAC audio./
- FLAC - Free Lossless Audio Codec. A popular open source codec and file format for lossless audio. Often used for high quality recordings.
- AIFF - Audio Interchange File Format. Apple's implementation of uncompressed audio. Audio data is uncompressed PCM in this case.
An audio file container is usually aligned to the codec it contains. The MP3 file format contains MP3 audio (two channels maximum) and some metadata.
Apple's M4A file container is a Quicktime container that can contain almost any media stream. The file container is the same as is used for Quicktime movies (MOV file extensions).
Apart from the Apple M4A file format, audio file formats generally match the codec which they contain.
Metadata is an important part of any digital media file. Audio files include a chunk of metadata which tells you things like the artist, album, track name and so on.
MP3 files often include metadata in an ID3 metadata block. ID3 is a defacto-standard for the storage of metadata in a audio file.
Apple's M4A format holds metadata in tags called 'atoms'. Again, this is the same technique used in Quicktime movie files.
FLAC uses the Vorbis comment metadata approach. This is a series of name/value pairs about the file, e.g. Artist=Green Day, Album=American Idiot, etc.
An audio file will include a number of streams encoded using the required codec. Different file formats and codecs support different numbers of audio channels.
MP3 support only two channels of audio, which means that MP3 is good for stereo, but won't do surround sound which needs at least 6 channels.
FLAC, ALAC, AAC and most other popular codecs support multi-channel audio streams.
Bringing it all together
Now you know all about sample rates, sample sizes, codecs, bit rates compression and what's inside an audio file.
We hope this will help you understand more about audio files how to best look after your music library.