mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-22 18:02:05 +00:00
87 lines
3.0 KiB
TeX
87 lines
3.0 KiB
TeX
|
|
%%% Local Variables:
|
|
%%% mode: latex
|
|
%%% TeX-master: "readme"
|
|
%%% End:
|
|
|
|
\subsection{Playing sound with Sequencer MIDI}
|
|
|
|
If your soundcard driver supports a sequencer, you may set the environment
|
|
variable "SCUMMVM\_MIDI" to your sequencer device - e.g., /dev/sequencer
|
|
|
|
If you have problems with not hearing audio in this configuration, it is
|
|
possible you will need to set the "SCUMMVM\_MIDIPORT" variable to 1 or 2. This
|
|
selects the port on the selected sequencer to use. Then start scummvm with the
|
|
-eseq parameter. This should work on several cards, and may offer better
|
|
performance and quality than Adlib emulation. However, for those systems where
|
|
sequencer support does not work, you can always fall back on Adlib emulation.
|
|
|
|
|
|
\subsubsection{Playing sound with ALSA sequencer}
|
|
|
|
If you have installed the ALSA driver with the sequencer support, then
|
|
set the environment variable SCUMMVM\_PORT or the config file parameter
|
|
alsa\_port to your sequencer port. The default is "65:0".
|
|
|
|
Here is a little howto on how to use the ALSA sequencer with your soundcard.
|
|
In all cases, to have a list of all the sequencer ports you have, try the
|
|
command
|
|
\begin{verbatim}
|
|
aconnect -o -l
|
|
\end{verbatim}
|
|
This should give output similar to:
|
|
\begin{verbatim}
|
|
client 64: 'External MIDI 0' [type=kernel]
|
|
0 'MIDI 0-0 '
|
|
client 65: 'Emu10k1 WaveTable' [type=kernel]
|
|
0 'Emu10k1 Port 0 '
|
|
1 'Emu10k1 Port 1 '
|
|
2 'Emu10k1 Port 2 '
|
|
3 'Emu10k1 Port 3 '
|
|
client 128: 'Client-128' [type=user]
|
|
0 'TiMidity port 0 '
|
|
1 'TiMidity port 1 '
|
|
\end{verbatim}
|
|
%
|
|
This means the external MIDI output of the sound card is located on the
|
|
port 64:0, four WaveTable MIDI outputs in 65:0, 65:1, 65:2
|
|
and 65:3, and two TiMidity ports, located at 128:0 and 128:1.
|
|
|
|
If you have a FM-chip on your card, like the SB16, then you have to load
|
|
the soundfonts using the sbiload software. \\
|
|
Example:
|
|
\begin{verbatim}
|
|
sbiload -p 65:0 /etc/std.o3 /etc/drums.o3
|
|
\end{verbatim}
|
|
%
|
|
If you have a WaveTable capable sound card, you have to load a sbk or sf2
|
|
soundfont using the sfxload software\\
|
|
Example:
|
|
\begin{verbatim}
|
|
sfxload /path/to/8mbgmsfx.sf2
|
|
\end{verbatim}
|
|
%
|
|
If you don't have a MIDI capable soundcard, there are two options: FluidSynth
|
|
and TiMidity. We recommend FluidSynth, as on many systems TiMidity will 'lag'
|
|
behind music. This is very noticable in iMUSE-enabled games, which use fast
|
|
and dynamic music transitions. Running TiMidity as root will allow it to
|
|
setup real time priority, which may reduce music lag.
|
|
|
|
Asking TiMidity to become an ALSA sequencer:
|
|
\begin{verbatim}
|
|
timidity -iAqqq -B2,8 -Os1S -s 44100 &
|
|
\end{verbatim}
|
|
If you get distorted output with this setting, you can try dropping the
|
|
-B2,8 or changing the value.
|
|
|
|
Asking FluidSynth to become an ALSA sequencer (using SoundFonts):
|
|
\begin{verbatim}
|
|
fluidsynth -m alsa_seq /path/to/8mbgmsfx.sf2
|
|
\end{verbatim}
|
|
%
|
|
Once either TiMidity or FluidSynth are running, use
|
|
\begin{verbatim}
|
|
aconnect -o -l
|
|
\end{verbatim}
|
|
as described earlier in this section.
|