A mirror of SoundHelix, the software MadHelix is based on.

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FAQ.txt

SoundHelix
----------

Author: Thomas Schürger (thomas@schuerger.com)


Frequently Asked Questions
--------------------------

1. SoundHelix complains about the MIDI device. What can I do?

Depending on your platform, the names of the available MIDI devices can vary.
This is true even between different Windows platforms. For example, the
standard Windows MIDI device is called "Microsoft GS Wavetable SW Synth" on
Windows XP, but is called "Microsoft GS Wavetable Synth" on Windows 7.

You can change the MIDI device to use in the XML file (look for the <device>
tag). The tag defines a comma-separated list of MIDI devices to try to open.
SoundHelix will use the first MIDI device in the list that is available on your
system. If none of the MIDI devices are available, an exception will be shown
where the available MIDI devices are listed. You can then adapt the list of
MIDI devices in the XML file accordingly.

The standard MIDI device that is available in Java on all platforms is the
"Java Sound Synthesizer" device. This device provides a software synthesizer
that is compatible with the General MIDI standard. Please read FAQ entry #2.


2. I'm using the MIDI device "Java Sound Synthesizer", but I can't hear anything. Why?

If you are using the standard MIDI device "Java Sound Synthesizer", please make
sure that a MIDI soundbank file is available. Otherwise the device will pretend
it's playing something but it will just remain silent. Please read the
following document about instructions how to download and install such a file:
http://java.sun.com/products/java-media/sound/soundbanks.html


3. What is the "groove" tag for?

The MidiPlayer device supports a "groove" tag. This tag defines the timing of
how the ticks are played.  are played. If it includes a single positive number,
the ticks are played with uniform, equal length. If you provide more than one
value (comma-separated), the tick lengths are played using these numbers as
ratios, repeating this pattern in a round-robin manner. For example, if you use
"2,1", then every even tick (ticks are counted from 0) is played using 133% of
its standard length and every odd tick is played using 66% of the standard
length, giving a ratio of 2:1. This will make playing more groovy (try it
out!). Of course, larger numbers and more numbers are possible as well (e.g.,
"120,80", or "120,80,110,90").
[See repo JSON]