Re: Helping the Con team. Was: Re: [nvda] NVDACon, recordings and my handout


 

i think we have got lots of recorders.
but we need atleast 1 more editor for next years conference.

On 11/22/19, Gene <gsasner@...> wrote:
See this page for verification.
https://lifehacker.com/mp3directcut-edits-your-mp3-files-without-decompression-5128814

Gene
----- Original Message -----

From: Gene
Sent: Thursday, November 21, 2019 7:00 PM
To: nvda@nvda.groups.io
Subject: Re: Helping the Con team. Was: Re: [nvda] NVDACon, recordings and
my handout


Not if you use MP3 Direct Cut, which edits and changes the same file without
reencoding it, which is why I specifically specified MP3 direct cut. That
is one of the reasons some people use that program, so they can alter MP3
files without loss of quality.

I haven't looked for documentation, but I'm sure I can document that MP3
Direct cut allows for alterations with no quality loss..

Gene
----- Original Message -----

From: Luke Davis
Sent: Thursday, November 21, 2019 6:52 PM
To: nvda@nvda.groups.io
Subject: Re: Helping the Con team. Was: Re: [nvda] NVDACon, recordings and
my handout


On Thu, 21 Nov 2019, Gene wrote:

I don't know what audio work you are looking for. I am an excellent
editor and I do other typical things such as equalize files. I assume you
are working
with MP3 files and I use MP3 Direct cut so I can edit and save the edited
versions of files with no loss of quality.
No offense intended Gene, and I don't want to spawn an audio discussion, but
I
had to address that. If you do anything other than cut an MP3 file--if you
equalize it, if you do some compression, if you do volume normalization or
balancing, or anything else that actually alters audio--and then save it as

another MP3 file, there will be a loss of quality. Especially if you do any

intermediate saves. MP3 is a lossy format, and any time you convert to 32
bit
floating point PCM in order to work on it, which as far as I know all audio

editors do internally, and then save it back out, there is further loss
during
the down-conversion to MP3.

The only way to work on audio with no loss of quality (by work, I mean do
anything beyond cutting out sections which does not have to re-encode), is
to
work on the original wave files if available, but in any case to always save

intermediate steps in a native uncompressed format.
Every time you edit and re-save an MP3,, you are making a slightly more
blurry
copy of an already blurry copy. That is why exporting to MP3 is the very
absolute last step of any mastering operation.

Okay, that's drifting significantly, but I felt like it needed to be pointed

out.

Luke






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