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*** README file for ITU-T P.501 (2026)
*** Speech files and noise sequences
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TITLE
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Recommendation ITU-T P.501 (2026) - Test signals for use in 
telephony and other speech-based applications


COPYRIGHT LICENCE AND DISCLAIMER
------------------------

In order to preserve and protect its rights, the International 
Telecommunication Union (ITU) fully retains all titles and rights 
in these Speech files and noise sequences (hereinafter "the Test 
signals") and does not sell or assign any rights related thereto.

ITU grants users a worldwide, non-exclusive, royalty-free licence to reproduce and use the test signals included in this electronic attachment for the purposes described in Recommendation ITU-T P.501 and in ITU-T Recommendations or other standards that reference or rely on such Test signals for telephony, speech-based, audio-quality, subjective, objective, perceptual or related measurement and evaluation applications.
 
Redistribution of the Test signals is permitted only together with this notice. Where specific files are subject to separate third-party rights, licence terms or notices, those rights, terms or notices prevail for the relevant files. Nothing in this notice shall be construed as superseding or modifying any third-party rights or licence terms applicable to particular files.
 
The Test signals are provided 'as is', without warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose or non-infringement. Nothing in this notice grants, or shall be construed as granting, any patent licence by any third party. Users are responsible for consulting the relevant ITU-T intellectual property databases and for obtaining any licences that may be required from third-party rights holders. In no event shall ITU be liable for any damages whatsoever, including, without limitation, damages for loss of profits, business interruption, loss of information, or any other pecuniary loss, arising out of or related to the use of or inability to use the Test signals.


ITU CONTACTS
------------

For distribution of software updates, please contact:
Sales Department
ITU
Place des Nations
CH-1211 Geneva 20
SWITZERLAND
email: sales@itu.int

For reporting problems, please contact TSB helpdesk service at:
TSB Helpdesk service
ITU
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CH-1211 Geneva 20
SWITZERLAND
email: tsbedh@itu.int
