Audio Specifications and Standards
From UA Libraries Digital Services Planning and Documentation
(Difference between revisions)
m |
|||
| Line 15: | Line 15: | ||
* WAV at 24-bit/44.1khz | * WAV at 24-bit/44.1khz | ||
**''note: [http://www.iasa-web.org/special_publications.asp IASA TC-04] calls for a minimum sampling rate of 48kHz (preferably 96kHz) [http://www.jazzpoparkisto.net/audio/audio32.html]. We will discontinue use of 44.1kHz sampling rates pending confirmation of appropriate storage space as 24/48 vs 24/44.1 should yield only an 8% increase in space requirements.'' - arora, 051309 | **''note: [http://www.iasa-web.org/special_publications.asp IASA TC-04] calls for a minimum sampling rate of 48kHz (preferably 96kHz) [http://www.jazzpoparkisto.net/audio/audio32.html]. We will discontinue use of 44.1kHz sampling rates pending confirmation of appropriate storage space as 24/48 vs 24/44.1 should yield only an 8% increase in space requirements.'' - arora, 051309 | ||
| + | **typically, 2s of silence is left or created at the beginning of each .wav, with 1s at the end. | ||
| + | **RMS levels are typically set fairly low, to -25db | ||
* REAL Audio 8 at 16-bit/44.1kHz, 105 kbps (stereo) | * REAL Audio 8 at 16-bit/44.1kHz, 105 kbps (stereo) | ||
Revision as of 14:18, 14 May 2009
Contents |
Sound Forge 9.0 (Sony):
Introduction:
The following provides a brief overview of our standard audio specifications.
Technical Information:
Default File/Output Settings
- WAV at 24-bit/44.1khz
- note: IASA TC-04 calls for a minimum sampling rate of 48kHz (preferably 96kHz) [1]. We will discontinue use of 44.1kHz sampling rates pending confirmation of appropriate storage space as 24/48 vs 24/44.1 should yield only an 8% increase in space requirements. - arora, 051309
- typically, 2s of silence is left or created at the beginning of each .wav, with 1s at the end.
- RMS levels are typically set fairly low, to -25db
- REAL Audio 8 at 16-bit/44.1kHz, 105 kbps (stereo)
Associated Hardware
Resources and Links:
- TAPE (Training for Audiovisual Preservation in Europe). European Commission on Preservation and Access, Amsterdam, The Netherlands.
- Capturing Analog Sound for Digital Preservation: Report of a Roundtable Discussion of Best Practices for Tranferring Analog Discs and Tapes. (2006) Council on Library and Information Resources and Library of Congress, Washington, D.C.
- Sound Directions - project website, maintained by Indiana University Digital Library Program.
- Sound Directions: Best Practices for Audio Preservation. (2007) Casey, Mike & Bruce Gordon. Bloomington, IN/Cambridge, MA.
- Grammy foundation® Basic Methodology for Preservation, Conversion and Archiving Recorded Media. (revised 2008) Grammy Foundation, Santa Monica, CA.
