Skip to main content

What is high-resolution audio?

What is high-resolution audio?

Our studio works with many clients offering options for audio outputs.  More often we get asked by corporate or archives for high resolution audio.  

There are several options for audio output which is explained below.

Unlike high-definition video, there’s no single universal standard for hi-res audio. In 2014, the Digital Entertainment Group, Consumer Electronics Association and The Recording Academy, together with record labels, formally defined high-resolution audio as “lossless audio that is capable of reproducing the full range of sound from recordings that have been mastered from better than CD quality music sources".

In its simplest terms, hi-res audio tends to refer to music files that have a higher sampling frequency and/or bit depth than CD, which is specified at 16-bit/44.1kHz.

Sampling frequency (or sample rate) refers to the number of times samples of the signal are taken per second during the analogue-to-digital conversion process. The more bits there are, the more accurately the signal can be measured in the first instance, so going 16bit to 24bit can deliver a noticeable leap in quality. Hi-res audio files usually use a sampling frequency of 96kHz or 192kHz at 24bit. You can also have 88.2kHz and 176.4kHz files too.


Kind regards

Cheryl

Comments

Popular posts from this blog

Onion Skin Archive Book Scanning - What is this and how do we process the pages?

CURRENT BOOK SCANNNING PROJECT.  We are currently working on a very large archive of old books that require HQ scanning to Archival TIFF images.  Once processed, these images will be prepared to PDF with OCR (optical character recognition) for a complete searchable output.   The difficulty in this order, is the books are prepared using a medium called Onion Skin Paper. Whilst we are very confident in preparing this type of medium, it is very important to be aware that there are risks with scanning, given the sometimes-fragile nature of the paper.   Tears and rips can occur, so a very gentle white glove approach is required. Equally, with the nature of onion skin, the paper is very translucent which requires a sheet of white paper to be placed under each page before scanning. This then grants a very good HQ image that we can work with.   WHAT IS ONION SKIN PAPER? Onion skin paper is a type of very light weight, almost translucent paper that ...

The Repair Shop - How To Spot A Ferrotype Camera 1855-1940s

After watching The Repair Shop on BBC1 restore a beautiful and rather rare ferrotype camera I thought a blog on the process would be interesting. Not only did they repair but they managed to have the camera working, taking photographs. This was very inspirational given the age of the camera. ABOUT FERROTYPE PROCESS Ferrotypes first appeared in America in the 1850s, but didn’t become popular in Britain until the 1870s. They were still being made by while-you-wait street photographers as late as the 1950s. The ferrotype process was a variation of the collodion positive, and used a similar process to  wet plate photography . A very underexposed negative image was produced on a thin iron plate. It was blackened by painting, lacquering or enamelling, and coated with a collodion photographic emulsion. The dark background gave the resulting image the appearance of a positive. Unlike collodion positives, ferrotypes did not need mounting in a case to produce a positi...

Difference Between 33, 45, and 78 Records?

Difference Between 33, 45, and 78 Records? Our busy audio-visual studio works with clients on short order and batch order audio projects.  One project we are currently working on is a large archive of 78rpm disc records.   78s are made of brittle material, which use a shellac resin. Another name for 78s is Shellac Records. During and after the World War II when shellac supplies were limited, some 78rpms were pressed in vinyl instead of shellac (wax), in particular the 6-minute 12" produced by V-Disc for distribution to US troops in World War II.  The most common is the 10" and 12", both sold in  paper or card covers.   Our professional studio converts records on high quality record decks, using the best arms, cartridges and stylus. Audio is paased through our Pro-Tools and Izotope system, with the final output audio restored to remove pops, clicks and crackles (optional to clients requirements). The end result is high quality WAV, FLAC or AIFF beautifu...