Jonas Smedegaard wrote:
> Maybe your system simply treats multi-channel
> audio wrongly.
>
> A simpler alternative to recoding audio with
> fine-tuned values could be something like this to
> force use only stereo:
>
> mpv --audio-channels=stereo ...
Yes, I've done that, in
On Thu 12 Mar 2020 at 02:38:28 (+0100), Emanuel Berg wrote:
> Reco wrote:
>
> >>> Personally I just reencode audio in such cases.
> >>> For instance (0:1 is the first audio track, use 0:2 for
> >>> english):
> >>>
> >>> ffmpeg -i ford-v-ferrari-2019.mkv -map 0:0 -map 0:1 \
> >>> -c:v copy \ -c:a
Quoting Emanuel Berg (2020-03-11 17:15:08)
> Jonas Smedegaard wrote:
>
> > Try check if the audio stream of that movie is AC-3, and if
> > so then try use mpv with the option --ad-lavc-ac3drc (read
> > the man page for valid values).
>
> OK, I'll try this...
>
> > If you experience similarly
Quoting Emanuel Berg (2020-03-12 03:07:23)
> Reco wrote:
>
> > FL = FL + 0.707 * FC + 0.707 * BL
>
> With mediainfo(1) as recommended by Mr. Smedegaard, I got
> this
>
> $ mediainfo ford-v-ferrari-2019.mkv | grep -i channel
> Channel(s) : 6 channels
> Channel
Reco wrote:
> FL = FL + 0.707 * FC + 0.707 * BL
With mediainfo(1) as recommended by Mr. Smedegaard, I got
this
$ mediainfo ford-v-ferrari-2019.mkv | grep -i channel
Channel(s) : 6 channels
Channel layout : L R C LFE Ls Rs
Channel(s)
Reco wrote:
> Your typical movie has dialogue on center channel, gunfire
> & cars' sounds come from the front channels, ambient comes
> from the back ones.
>
> So, what's needed is to gain volume on dialogues
OK, so that's
-clev 1.414
since dialog comes from the center.
> while downplaying
Reco wrote:
>>> Personally I just reencode audio in such cases.
>>> For instance (0:1 is the first audio track, use 0:2 for
>>> english):
>>>
>>> ffmpeg -i ford-v-ferrari-2019.mkv -map 0:0 -map 0:1 \
>>> -c:v copy \ -c:a libopus -b:a 128k -ac 2 -clev 1.414
>>> -slev .5 \
Hi.
On Wed, Mar 11, 2020 at 01:51:26PM -0500, David Wright wrote:
> > Personally I just reencode audio in such cases.
> > For instance (0:1 is the first audio track, use 0:2 for english):
> >
> > ffmpeg -i ford-v-ferrari-2019.mkv -map 0:0 -map 0:1 \
> > -c:v copy \
> > -c:a
On Wed 11 Mar 2020 at 19:33:59 (+0300), Reco wrote:
> On Wed, Mar 11, 2020 at 05:00:21PM +0100, Emanuel Berg wrote:
> > Stream #0:1(por): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
> > (default)
>
> Or this, dependent on your preferred language
>
> > Stream #0:2(eng): Audio: ac3,
Reco wrote:
> Personally I just reencode audio in such cases. For instance
> (0:1 is the first audio track, use 0:2 for english):
>
> ffmpeg -i ford-v-ferrari-2019.mkv -map 0:0 -map 0:1 \
> -c:v copy \
> -c:a libopus -b:a 128k -ac 2 -clev 1.414 -slev .5 \
>
Quoting Emanuel Berg (2020-03-11 17:15:08)
> Jonas Smedegaard wrote:
>
> > Try check if the audio stream of that movie is AC-3, and if
> > so then try use mpv with the option --ad-lavc-ac3drc (read
> > the man page for valid values).
>
> OK, I'll try this...
>
> > If you experience similarly
Hi.
On Wed, Mar 11, 2020 at 05:00:21PM +0100, Emanuel Berg wrote:
> Reco wrote:
>
> > Can you provide an output of (you may need to install ffmpeg
> > package):
> >
> > ffprobe -hide_banner
Perfect, thanks. This:
> Stream #0:1(por): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
Jonas Smedegaard wrote:
> Try check if the audio stream of that movie is AC-3, and if
> so then try use mpv with the option --ad-lavc-ac3drc (read
> the man page for valid values).
OK, I'll try this...
> If you experience similarly expanded dynamic range also for
> differently encoded audio
deloptes wrote:
> why don't you check if you have the right profile selected
> (input/output, pulse audio etc)
How do you do that?
I use mpv
$ mpv --version
mpv 0.29.1 Copyright © 2000-2018 mpv/MPlayer/mplayer2 projects
built on UNKNOWN
ffmpeg library versions:
Reco wrote:
> Can you provide an output of (you may need to install ffmpeg
> package):
>
> ffprobe -hide_banner
$ ffprobe -hide_banner ford-v-ferrari-2019.mkv
Input #0, matroska,webm, from 'ford-v-ferrari-2019.mkv':
Metadata:
title :
On Mon 09 Mar 2020 at 14:23:54 (-0600), ghe wrote:
>
> > Please note that the subject of this conversation is mp4 (not mp3).
>
> It's claimed that sox will handle mp4:
>
> https://stackoverflow.com/questions/2666425/how-to-i-configure-sox-to-work-on-mp4
>
> (You do have to install LAME.)
All
Reco (12020-03-10):
> I disagree.
You don't do support on the ffmpeg-user mailing lists. -hide_banner is
very annoying there; please don't give bad habits to unsuspecting users.
Regards,
--
Nicolas George
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Description: PGP signature
Hi.
On Tue, Mar 10, 2020 at 01:06:10PM +0100, Nicolas George wrote:
> Reco (12020-03-10):
> > ffprobe -hide_banner
>
> Please don't advise -hide_banner. It makes it harder to notice obvious
> issues like bogus or prehistoric versions.
I disagree. In this case the problem lies with the
Reco (12020-03-10):
> ffprobe -hide_banner
Please don't advise -hide_banner. It makes it harder to notice obvious
issues like bogus or prehistoric versions.
Regards,
--
Nicolas George
signature.asc
Description: PGP signature
Quoting Emanuel Berg (2020-03-10 09:54:07)
> deloptes wrote:
>
> > but my question here is - why the subject with mp4s - do only
> > they suffer this problem or it is just a case among others?
>
> It is probably a case among others, at least when I wrote it the
> intention was to raise this
Emanuel Berg wrote:
> deloptes wrote:
>
>> but my question here is - why the subject with mp4s - do only
>> they suffer this problem or it is just a case among others?
>
> It is probably a case among others, at least when I wrote it the
> intention was to raise this issue in general.
>
> Today
Hi.
On Tue, Mar 10, 2020 at 09:54:07AM +0100, Emanuel Berg wrote:
> deloptes wrote:
>
> > but my question here is - why the subject with mp4s - do only
> > they suffer this problem or it is just a case among others?
>
> It is probably a case among others, at least when I wrote it the
>
deloptes wrote:
> but my question here is - why the subject with mp4s - do only
> they suffer this problem or it is just a case among others?
It is probably a case among others, at least when I wrote it the
intention was to raise this issue in general.
Today I saw "Ford v Ferrari" from last
ghe wrote:
>> Please note that the subject of this conversation is mp4 (not mp3).
>
> It's claimed that sox will handle mp4:
>
>
https://stackoverflow.com/questions/2666425/how-to-i-configure-sox-to-work-on-mp4
>
> (You do have to install LAME.)
>
>> If you only process uncompressed audio
On Mon 09 Mar 2020 at 19:38:06 (+0100), Jonas Smedegaard wrote:
> All that said, you are of course quite welcome to look at my script, and
> even critisize it if you like (no doubt there are things in there worthy
> of pointing fingers at).
Before I do, I thought I'd try my hand at one myself.
On Mon 09 Mar 2020 at 19:38:06 (+0100), Jonas Smedegaard wrote:
> Quoting David Wright (2020-03-09 19:08:26)
> > On Mon 09 Mar 2020 at 12:26:53 (+0100), Jonas Smedegaard wrote:
> > > So if high-quality normalization is not important (and you don't
> > > want to try play with stripping my script),
Quoting ghe (2020-03-09 21:23:54)
>
> > Please note that the subject of this conversation is mp4 (not mp3).
>
> It's claimed that sox will handle mp4:
>
> https://stackoverflow.com/questions/2666425/how-to-i-configure-sox-to-work-on-mp4
>
> (You do have to install LAME.)
In Debian, install
> Please note that the subject of this conversation is mp4 (not mp3).
It's claimed that sox will handle mp4:
https://stackoverflow.com/questions/2666425/how-to-i-configure-sox-to-work-on-mp4
(You do have to install LAME.)
> If you only process uncompressed audio then sox is fine.
It will do
Quoting David Wright (2020-03-09 19:08:26)
> On Mon 09 Mar 2020 at 12:26:53 (+0100), Jonas Smedegaard wrote:
> > So if high-quality normalization is not important (and you don't
> > want to try play with stripping my script), then directly use
> > ffmpeg, or use any other of the many many many
On Mon 09 Mar 2020 at 12:26:53 (+0100), Jonas Smedegaard wrote:
> So if high-quality normalization is not important (and you don't want to
> try play with stripping my script), then directly use ffmpeg, or use any
> other of the many many many ffmpeg-based tools available.
>
> ...or use sox
On Sat, Mar 07, 2020 at 03:05:27AM +0100, Emanuel Berg wrote:
> get-mp3-normalized () {
> local -a files
> files=($@)
>
> local dB=-10 # db/LUFS
>
> for f in $files; do
> ffmpeg-normalize -f -c:a libmp3lame -t $dB -ext mp3 $f
> done
get-mp3-normalized() {
local
Quoting David Wright (2020-03-09 04:15:41)
> On Sat 07 Mar 2020 at 12:12:18 (+0100), Jonas Smedegaard wrote:
> > Quoting David Wright (2020-03-07 04:56:05)
> > > On Fri 06 Mar 2020 at 20:33:48 (+0100), Emanuel Berg wrote:
> > > > how can I normalize the audio in mp4 video files? both WRT not
> >
On Sat 07 Mar 2020 at 12:12:18 (+0100), Jonas Smedegaard wrote:
> Quoting David Wright (2020-03-07 04:56:05)
> > On Fri 06 Mar 2020 at 20:33:48 (+0100), Emanuel Berg wrote:
> > > how can I normalize the audio in mp4 video files? both WRT not
> > > having to lower the volume when there's a
Quoting David Wright (2020-03-07 04:56:05)
> On Fri 06 Mar 2020 at 20:33:48 (+0100), Emanuel Berg wrote:
> > how can I normalize the audio in mp4 video files? both WRT not
> > having to lower the volume when there's a firefight and raise it
> > when they start talking again, _and_ WRT playing
On Fri 06 Mar 2020 at 20:33:48 (+0100), Emanuel Berg wrote:
> how can I normalize the audio in mp4 video files? both WRT not
> having to lower the volume when there's a firefight and raise it
> when they start talking again, _and_ WRT playing several files, e.g.
> music videos, and having them
David Christensen wrote:
> It is going to be difficult or impossible to get good results
> across many different mp4 files by feeding them all through
> a command-line tool with the same set of options. It might be
> possible to script a solution that uses command-line tools to
> analyze each
> I tried this but it sounds so bad I even had to put a warning in
> a comment
I used it the wrong way, one is supposed to experiment with dB/LUFS
values for a single problematic file, meanwhile I just injected all
my mp3s :$
> # first do:
> # $ pip install ffmpeg-normalize
> #
> # but... don't
Quoting David Christensen (2020-03-07 03:41:22)
> On 2020-03-06 18:05, Emanuel Berg wrote:
>
>
>
> > Well, it sounds advanced... Yes, its a stereo alright, that much
> > I know.
> >
> > I tried this but it sounds so bad I even had to put a warning in
> > a comment:
> >
> > # first do:
> > # $
On 2020-03-06 18:05, Emanuel Berg wrote:
Well, it sounds advanced... Yes, its a stereo alright, that much
I know.
I tried this but it sounds so bad I even had to put a warning in
a comment:
# first do:
# $ pip install ffmpeg-normalize
#
# but... don't use, at least not with music, sounds
David Christensen wrote:
> You want audio compression.
>
> Some media editors, such as Audacity, have compression (and many
> other features).
>
> Some media players, such as VLC, have real-time audio compression
> during playback.
>
> I use Xfce. I do not see a compressor in its PulseAudio
>
On 2020-03-06 11:33, Emanuel Berg wrote:
how can I normalize the audio in mp4 video files? both WRT not
having to lower the volume when there's a firefight and raise it
when they start talking again, _and_ WRT playing several files, e.g.
music videos, and having them have basically the same
how can I normalize the audio in mp4 video files? both WRT not
having to lower the volume when there's a firefight and raise it
when they start talking again, _and_ WRT playing several files, e.g.
music videos, and having them have basically the same volume?
if need be, I can set volume
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