Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.

 

Go Back   Doom9's Forum > General > Audio encoding

Reply
 
Thread Tools Search this Thread Display Modes
Old 1st May 2014, 17:49   #1  |  Link
pcroland
Registered User
 
Join Date: Mar 2014
Location: Hungary
Posts: 59
Is there any difference between original sound and converted lossless?

Hello!
I use Audacity in Xubuntu 14.04 LTS. Audacity can't import a lot of formats, for example: aac, ac3. But it can import .wav. So, is there any difference between these two methods?:
original sound -> import -> edit -> export
original sound -> convert to lossless wav -> edit -> export.
I use ffmpeg so the second method isn't more complicated.
ffmpeg -i source.mkv -c:a copy out.ac3
ffmpeg -i source.mkv -c:a pcm_s16le out.wav
pcroland is offline   Reply With Quote
Old 1st May 2014, 18:12   #2  |  Link
Guest
Guest
 
Join Date: Jan 2002
Posts: 21,923
Do you understand what "lossless" really means?
Guest is offline   Reply With Quote
Old 1st May 2014, 18:18   #3  |  Link
pcroland
Registered User
 
Join Date: Mar 2014
Location: Hungary
Posts: 59
Yes, but some have said that this method is not good, but i think i get the same quality when i export the sound. Am I right?
pcroland is offline   Reply With Quote
Old 1st May 2014, 18:23   #4  |  Link
Guest
Guest
 
Join Date: Jan 2002
Posts: 21,923
Quote:
Is there any difference between original sound and converted lossless?
It's lossless, how could there be any quality difference?
Guest is offline   Reply With Quote
Old 1st May 2014, 18:50   #5  |  Link
pcroland
Registered User
 
Join Date: Mar 2014
Location: Hungary
Posts: 59
Ok, I'll import sounds as wav :-)
pcroland is offline   Reply With Quote
Old 1st May 2014, 20:14   #6  |  Link
tebasuna51
Moderator
 
tebasuna51's Avatar
 
Join Date: Feb 2005
Location: Spain
Posts: 5,714
Quote:
Originally Posted by pcroland View Post
Audacity can't import a lot of formats, for example: aac, ac3. But it can import .wav.
Maybe 'import' is not a exact word.

Audio editors (Audacity, SoundForge, etc.) work with uncompressed audio like wav files are. Then Audacity 'read' wav files without any operation.

Compressed audio, lossless (Flac, etc.) or lossy (Ac3, Aac, etc.), must be decoded before to be edited. Then Audacity need 'decode' compressed formats, and can use ffmpeg (and others decoders) automatically to 'import' these formats.

Many Audio editors have decoders, inside or by plugins, to decode compressed formats.

Quote:
So, is there any difference between these two methods?:
original sound -> import -> edit -> export
original sound -> convert to lossless wav -> edit -> export
Is the same. With Audacity you can decode and read some compressed formats using ffmpeg.

But you can decode these formats to wav with others decoders (eac3to, BeHappy, ...) and after read the wav with Audacity.
__________________
BeHappy, AviSynth audio transcoder, in Doom9 forums. NicAudio, BassAudio, audio decoders.
tebasuna51 is offline   Reply With Quote
Old 1st May 2014, 20:23   #7  |  Link
pcroland
Registered User
 
Join Date: Mar 2014
Location: Hungary
Posts: 59
Okay :-) But Audacity requires an old ffmpeg build and I don't want to compile it So I will use .wav
pcroland is offline   Reply With Quote
Reply

Tags
audacity, ffmpeg, linux, lossless, ubuntu

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 04:10.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.