0
$\begingroup$

I am new to encoding in audios and i have searched for ulaw and alaw and found there is conversion from audio to this encoding CCITT alaw/ulaw and as i have known alaw/ulaw belongs to ITUT group not CCITT so Is there two standards for conversion audio to alaw/mulaw ?

here is the ITU-T and this conversion about CITT ulaw

$\endgroup$
2
$\begingroup$

Yes. You can choose the µ parameter freely in µ-law encoding. So, there's as many different µ-law encodings as there are possible µ; of course, only very few are standardized.

The same applies to the A in A-law.

You might want to read the wikipedia articles on µ-law and A-law, instead of just the G.711 article.

$\endgroup$
3
  • $\begingroup$ you are talking about choosing parameters to change expanding and compression of the signal but what i want to know is that there is two standards for ulaw and alaw or not ? $\endgroup$ – Mohamed Lotfy Elrefai Jun 23 '20 at 11:39
  • $\begingroup$ I explicitly answered that. $\endgroup$ – Marcus Müller Jun 23 '20 at 11:46
  • $\begingroup$ maybe the confusion for me as ITUT and CCITT have become as CCITT so this is the confusion of my understanding so i thought there is no more than one ulaw/alaw CCITT $\endgroup$ – Mohamed Lotfy Elrefai Jun 23 '20 at 16:40

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.