Did you know there are over 1.2 trillion mp3 files on earth? That’s more than 171 times the number of people on the planet! It took nearly 200,000 years to grow the human population to 7.2 billion but only 20 years to produce the number of mp3s that exist in the world today. How come there are so many? What has made the mp3 so popular?
In this article we’ll take a look at the history of the mp3 and see how it gained its foothold in the audio world. We’ll also investigate some of the newer codecs that are being used alternatively to the mp3.
In 1989, the Moving Picture Expert Group (MPEG), an international standardization organization, wanted to introduce an audio standard. They received 14 audio coding proposals from participants who were then encouraged to combine their contributions. This resulted in the creation of ASPEC (adaptive spectral perceptual entropy coding), the precursor to the mp3 (MPEG layer 3). The technology was later incorporated into ISO MPEG standardization, which ultimately led to the success of its creators, the Fraunhofer Institute for Integrated Circuits (FIIC).
Unfortunately, marketing the mp3 was a bit of a disaster. In 1996, consumers were able to purchase the first mp3 encoder via the internet, which quickly led to mass distribution of the mp3. Regrettably, the software was bought by an Australian student using a stolen credit card and was made publicly available. Fraunhofer’s software business may have been laid to rest, but the result was the mp3 spreading like wildfire across the internet.
What’s more, music that was encoded in mp3, often in breach of copyright, was being distributed via file sharing and torrent sites such as Soulseek, Napster and Grooveshark. At the time, an average 128 kbps mp3 took up around 3.5 megabytes of space, a size that could easily be transferred over the internet when higher connection speeds ranged only from 56k to 1.54 mbps.
Finally, the advent of the mp3 player would solidify the mp3’s existence for years to come.
The last two decades have shown that mp3s were favored over formats such as AAC because they were compatible with more listening devices at higher bit-depths. They also required less storage space than large, uncompressed file types such as AIFF or WAV. This is still true today and streaming and download services such as Amazon, iTunes, Google Play and Murfie continue to support mp3s, but they also support alternative formats as well.
There’s debate about which file formats are best for consuming music, but what consumers should be primarily aware of is the difference between lossy and lossless compression and how it affects their listening experience.
Lossy file types such as mp3 and AAC are compressed audio formats that use inexact approximations and discard data to represent the content for the purposes of storing, handling and transmitting. In other words, what you’re hearing is not the audio in its entirety. It’s similar to printing a draft on your printer as opposed to a full quality print. Less ink is used and the print is often lighter, but what remains is enough information to tell you what you’re looking at. Depending on the bit-depth of these file types the listener may experience reduced audio quality. Some would argue, however, that at higher bit-rates degradation in audio quality is hardly noticeable when compared to lossless formats.
Lossless file types like WAV and AIFF, FLAC and ALAC are containers that are able to store all of the data of an audio signal. Bit-for-bit, these file formats are more accurate representations of a signal because they don’t eliminate any data while encoding. FLAC and ALAC are newer codecs, which are compressed to some degree, but claim to deliver the same quality as uncompressed formats. Although these containers are often massive in size, they are great for storing audio files in their original condition (true CD quality). And with the advent of hi-res streaming packages like Murfie Hi-Fi, you’re able to stream your music in FLAC on your lossless-ready devices for only $10 a month!
When you send your collection to Murfie, we’ll rip and store the data as uncompressed audio (WAV) and make it available for streaming in 320 kbps mp3 (1411 kbps FLAC if you choose the Murfie Hi-Fi plan) or download in AAC, mp3, FLAC and ALAC.
If you’re looking to transfer your CDs, vinyl or cassettes to digital and stream them from your preferred devices, send your collection to Murfie. To get a free quote click here. To learn more about our services, contact us or check our FAQ for answers to frequently asked questions.