Head to Head Bet: OGG vs LAME


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Head to Head Bet: OGG vs LAME

Ogg

You probably won’t surprise anyone with the sound capabilities of modern computers. Keeping a music library on a computer, along with audio cassettes and CDs, has become commonplace for many. Today, even schoolchildren know the magic password that unites many people, in one way or another connected to computers. This password consists of only three characters: “M” “P” “3”. Consider how many memories you have with them.

OGG

Many people know what audio CDs are in terms of simplicity and ease of use. “Why?” – you ask. Yes, because the CD, as they say, is “and in Africa” ​​the CD. If some characteristics of the reading are not taken into account, it is always and everywhere the same as it was created, that is, the same. It has the same rigidly defined format, and the sound quality is primarily dependent on the recording studio and is generally the best. Conveniently? I don’t argue!

What about the music on your computer? The PCM (Pulse Code Modulation) recording format used on CD-DA discs is not compact enough to store music on your computer, and completely unsuitable for sharing music over the Internet. Therefore, mathematically extremely complex algorithms for compressing audio data and its storage formats are constantly being developed and improved. These algorithms sometimes differ greatly from each other in sound quality. Many users are faced with a constant problem of choice: which program, with what algorithm and with what parameters to encode their favorite music?

Even though many different algorithms and formats have been created, only one of them is the absolute leader today. This is the MPEG 1.0 Audio Layer III compression format, popularly known as “MP3”. There are many encoding programs available to record music in this format. Each of these programs has its pros and cons; On the web you can find a large number of tests and comparisons of various MP3 encoders. The generally recognized leader today is LAME, a free open source project with no license restrictions.

We are used to thinking that MP3 is the best, MP3 is forever. However, it hasn’t been long since the prevailing audio compression format and encoder had a serious competitor: the all-new format and the Ogg Vorbis algorithm. After the beta 3 version of this encoder was released in late summer 2000, the public began to look closely at it and it became very difficult to choose the “best”. And at the beginning of 2001 two new versions were released at the same time: LAME 3.88 and Ogg Vorbis 1.0 Beta 4. Both versions differ significantly from the previous ones, so it is necessary to compare them, to make, so to speak, a “showdown” between both formats. That it was done. The result is in front of you.


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OGG, all about ogg

OGG, all about ogg

OGG

How many MP3 files do you have on your hard drive? 100, 500, 1000? No wonder even 15,000! We all love music and we are probably all familiar with MP3. The good old format, time tested … But the light did not converge on MP3, right? It was developed as one of the first of its kind, which gave it a huge boost in popularity. Could the developers have taken into account all the nuances of lossy music encoding? Could you imagine all the options to use this format to make it the most versatile? Of course, no!

OGG

Throughout the existence of the format, there were many applicants for its replacement. But in fact, the benefits have not always been tangible enough to make the transition to new formats. But then Ogg Vorbis appeared …

Ogg Vorbis
A new breath of compressed digital audio
Ogg Vorbis is a relatively new universal audio compression format that was officially released in the summer of 2002. It belongs to the same type of format as MP3, AAC, VQF and WMA, that is, lossy compression formats. The psychoacoustic model used in Ogg Vorbis is similar in principle to MP3 and similar ones, but only that the mathematical processing and practical implementation of this model are fundamentally different, allowing the authors to declare its format completely independent of all predecessors.

The main undeniable advantage of the Ogg Vorbis format is its total openness and freedom. In addition, it uses the latest and highest quality psychoacoustic model, so the bitrate / quality ratio is significantly lower than other formats. As a result, the sound quality is better, but the file size is smaller.

The format has many advantages. For example, the Ogg Vorbis format does not restrict the user to only two channels of audio (stereo: left and right). Supports up to 225 individual channels at sample rates up to 192 kHz and up to 32 bits (which no lossy compression format does), making Ogg Vorbis ideal for encoding 6-channel DVD-Audio. Additionally, the OGG Vorbis format has sample accuracy. This ensures that the audio data before encoding and after decoding will not have offsets or extra / missing samples to each other. This is easy to appreciate when you are encoding music endlessly (where one track gradually fades into another); in the end, the integrity of the sound will be preserved.

Streaming capacity is nowhere to be found, but this format has built it from the ground up. This gives the format a rather useful side effect: multiple songs can be stored in one file with their own tags. When loading such a file into the player, all songs should be displayed as having been loaded from several different files.

We should also mention a fairly flexible labeling system. The tag header can easily be expanded to include lyrics of any length and complexity (eg song lyrics) interspersed with images (eg album cover photo). Text labels are stored in UTF-8, allowing you to type in all languages ​​at the same time and eliminating potential problems with encodings. This is much more convenient than various tricks like id3 tags.

Ogg Vorbis uses a variable bitrate by default, while the latter is not limited to hard values ​​and can vary even by 1 kbps. It should be noted that the format does not strictly limit the maximum bit rate and with the maximum encoding setting it can range from 400 kbps to 700 kbps. The sample rate has the same flexibility: users can choose between 2000 Hz and 192000 Hz.

Ogg Vorbis was developed by the Xiphophorus community to replace all paid proprietary audio formats. Even though this is the youngest format of all MP3 competitors, Ogg Vorbis has full support on all known platforms (Windows, PocketPC, Symbian, DOS, Linux, MacOS, FreeBSD, BeOS, etc.), as well as a large number of hardware implementations. … The current popularity far exceeds all alternative solutions.

It is worth noting that Ogg Vorbis is only a small part of the Ogg Squish multimedia project, which also includes free encoders: Speex – for voice compression; FLAC: for lossless audio compression; Theora: for video compression.