Valid

SJ 20923-2005Method of objective speech quality assessment based on a perceptual measure for military communication equipments (English PDF)

基于感知测度的军用通信设备客观音质评价方法

Preview PDF

This is a limited preview

Buy now to download the full PDF (15 pages)

Need quotation for your management?

Get a formal quotation for SJ 20923-2005 in 30 minutes.

Issued by

Ministry of Industry and Information Technology of PRC

Level / Type

National · Mandatory

Issue date

March 11, 2005

Implementation date

April 1, 2005

Scope

SJ 20923-2005 is the English-translated version of 基于感知测度的军用通信设备客观音质评价方法.

SJ 20923-2005 — This standard specifies the Barker distance measurement algorithm based on psychoacoustics, which embodies the perceptual characteristics of human beings, the selection of test voice materials, the prediction from objective measurement to subjective sound quality and the analysis of the results.

Found what you need?

Document preview — SJ 20923-2005

National Standard of the People's Republic of China

ICS: 95.020
Classification: M 30

What this standard covers1
Document data2

What this standard covers

This standard specifies the Barker distance measurement algorithm based on psychoacoustics, which embodies the perceptual characteristics of human beings, the selection of test voice materials, the prediction from objective measurement to subjective sound quality and the analysis of the results. This standard applies to indoor and outdoor voice coding technology, communication equipment or system voice, through the MkV objective distortion distance calculation, predict the subjective quality of auditory perception, but also for objective sound quality evaluation of the development of research.

Document data

International classification (ICS): 95.020.

Chinese classification (CCS): M30.

Estimated length of the Chinese original: 23,286 words.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

How to Download SJ 20923-2005

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.