sox-users@lists.sourceforge.net unofficial mirror
 help / color / Atom feed
From: Martin Ratinaud <martinratinaud@gmail.com>
To: "Måns Rullgård" <mans@mansr.com>
Cc: sox-users@lists.sourceforge.net
Subject: Re: Wav to Mp3 leads to an mp3 file that has a longer duration
Date: Tue, 17 Dec 2019 14:04:04 +0400
Message-ID: <CAKy7tYjJZEOjRtaNXCC+DctuBK+cKwBJy1RLjWpDbCo0sPdFQw@mail.gmail.com> (raw)
In-Reply-To: <yw1ximmgw4fh.fsf@mansr.com>


[-- Attachment #1.1: Type: text/plain, Size: 1019 bytes --]

Thanks for the tip!

What codec should I use then ?

Thanks
-----------------------------------------------------------------------
*Martin RATINAUD*
-----------------------------------------------------------------------


On Mon, Dec 16, 2019 at 9:44 PM Måns Rullgård <mans@mansr.com> wrote:

> Martin Ratinaud <martinratinaud@gmail.com> writes:
>
> > Ok, thanks.
> >
> > But would it be possible to
> > - add silence samples at the end of the wav file so that is is a multiple
> > of 1152
> > - convert it to an mp3
> > - and get the exact same number of samples with no change between wav
> > duration and mp3 duration
> >
> > Because I just test with a wav file that is 8640000 samples = 7500 * 1152
> > and when I convert it to an mp3, I get 8641152 samples
>
> Apparently the LAME encoder is adding an extra frame for some reason.
> MP3 is weird like this.  If you need the number of samples to be exact,
> you'll have to switch a more modern codec.
>
> --
> Måns Rullgård
>

[-- Attachment #1.2: Type: text/html, Size: 1777 bytes --]

[-- Attachment #2: Type: text/plain, Size: 0 bytes --]



[-- Attachment #3: Type: text/plain, Size: 158 bytes --]

_______________________________________________
Sox-users mailing list
Sox-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/sox-users

  reply index

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-11 14:26 Martin Ratinaud
2019-12-11 17:18 ` Jeremy Nicoll - ml sox users
2019-12-12  4:18   ` Martin Ratinaud
2019-12-12 17:05     ` Jeremy Nicoll - ml sox users
2019-12-16  5:10       ` Martin Ratinaud
2019-12-16 11:48 ` Måns Rullgård
2019-12-16 12:02   ` Martin Ratinaud
2019-12-16 13:30     ` Måns Rullgård
2019-12-16 13:36       ` Martin Ratinaud
2019-12-16 17:44         ` Måns Rullgård
2019-12-17 10:04           ` Martin Ratinaud [this message]
2019-12-17 10:50             ` Måns Rullgård
2019-12-18  4:00               ` Martin Ratinaud
2019-12-18  7:43                 ` Mikko Olkkonen
2019-12-18  9:06                   ` Martin Ratinaud
2019-12-19  9:52                     ` Mikko Olkkonen

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-list from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://lists.sourceforge.net/lists/listinfo/sox-users

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAKy7tYjJZEOjRtaNXCC+DctuBK+cKwBJy1RLjWpDbCo0sPdFQw@mail.gmail.com \
    --to=sox-users@lists.sourceforge.net \
    --cc=mans@mansr.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

sox-users@lists.sourceforge.net unofficial mirror

Archives are clonable: git clone --mirror https://public-inbox.org/sox-users

Example config snippet for mirrors

Newsgroups are available over NNTP:
	nntp://news.public-inbox.org/inbox.comp.audio.sox
	nntp://ou63pmih66umazou.onion/inbox.comp.audio.sox
	nntp://news.gmane.io/gmane.comp.audio.sox

 note: .onion URLs require Tor: https://www.torproject.org/

AGPL code for this site: git clone https://public-inbox.org/public-inbox.git