How to use ffmpeg to convert midi to ogg

[ToddAndMargo]

Hi All,

Fedora 30
ffmpeg-4.1.3-2.fc30.x86_64

How do I use ffmpeg to convert midi to ogg?

$ ffmpeg -i Bless-The-Lord.midi -vn -acodec libvorbis Bless-The-Lord.ogg
...
Bless-The-Lord.midi: Invalid data found when processing input

Many thank,
-T

[Samuel Sieb]

On 6/2/19 4:57 AM, ToddAndMargo via users wrote:
> How do I use ffmpeg to convert midi to ogg?
>
> $ ffmpeg -i Bless-The-Lord.midi -vn -acodec libvorbis Bless-The-Lord.ogg

You don't, midi is not an audio format.  You need to use something like 
timidity to generate the instrument sounds.  I think it can directly 
write to vorbis as well.

[Wolfgang Pfeiffer]

On Sun, Jun 02, 2019 at 04:57:41AM -0700, ToddAndMargo via users wrote:
> Hi All,
>
> Fedora 30
> ffmpeg-4.1.3-2.fc30.x86_64
>
> How do I use ffmpeg to convert midi to ogg?

I don't remember having tried that ever, but there's even a Wiki for
it: fluidsynth

"
How to convert MIDI to MP3/OGG

Simple command lines to convert midi to ogg:

$ fluidsynth -nli -r 48000 -o synth.cpu-cores=2 -T oga -F example.ogg /usr/share/soundfonts/FluidR3_GM.sf2 example.MID
"
from:
https://wiki.archlinux.org/index.php/FluidSynth

Note the dependencies for the package: you might need
FluidR3_GM*, maybe twolame.
More on the Wiki.

someth. like:
dnf -C whatprovides *FluidR3_GM*
dnf -C repoquery -l fluid-soundfont-gm

HTH, and good luck!
Wolfgang

[ToddAndMargo]

On 6/3/19 5:06 AM, Wolfgang Pfeiffer wrote:
> On Sun, Jun 02, 2019 at 04:57:41AM -0700, ToddAndMargo via users wrote:
> > Hi All,
> >
> > Fedora 30
> > ffmpeg-4.1.3-2.fc30.x86_64
> >
> > How do I use ffmpeg to convert midi to ogg?
>
> I don't remember having tried that ever, but there's even a Wiki for
> it: fluidsynth
>
> "
> How to convert MIDI to MP3/OGG
>
> Simple command lines to convert midi to ogg:
>
> $ fluidsynth -nli -r 48000 -o synth.cpu-cores=2 -T oga -F example.ogg 
> /usr/share/soundfonts/FluidR3_GM.sf2 example.MID
> "
> from:
> https://wiki.archlinux.org/index.php/FluidSynth
>
> Note the dependencies for the package: you might need
> FluidR3_GM*, maybe twolame.
> More on the Wiki.
>
> someth. like:
> dnf -C whatprovides *FluidR3_GM*
> dnf -C repoquery -l fluid-soundfont-gm
>
> HTH, and good luck!
> Wolfgang

Thank you!

I already installed fluid-soundfont-gm to get VLC to work
with MIDI, so this should be ...

[ToddAndMargo]

On 6/2/19 7:19 AM, Samuel Sieb wrote:
> On 6/2/19 4:57 AM, ToddAndMargo via users wrote:
> > How do I use ffmpeg to convert midi to ogg?
> >
> > $ ffmpeg -i Bless-The-Lord.midi -vn -acodec libvorbis Bless-The-Lord.ogg
>
> You don't, midi is not an audio format.  You need to use something like 
> timidity to generate the instrument sounds.  I think it can directly 
> write to vorbis as well.

Thank you!