[64studio-devel] Problems with Hydrogen

[Susan Dridi]

Hi All,

So, I finally decided to learn how to use Hydrogen, since Tim has that 
nice tutorial up on the website. Inputting the patterns and creating a 
song was really easy! But I ran into some problems.

I'm using 64 Studio testing, Hydrogen v0.9.3 and Jack Control v0.2.22. I 
have a PreSonus Firepod, which works great with Ardour and FMIT. I can 
use the Rosegarden notation editor (haven't really done anything else 
with Rosegarden, but it does show up correctly in Jack Control). So the 
firewire device is working with Jack.

Here are the problems I've encountered with Hydrogen:

1. I can't hear anything when I try to play a song back in Hydrogen.

2. Hydrogen doesn't show up in QJackCtrl

3. When I try to export a song, the progress bar goes to 100% 
immediately. The sample rate is shown as 0, even though in the Hydrogen 
preferences dialogue, it's 44100, just like Jack. The exported .wav file 
is always 44 bytes.

4. I then get another error:

"Error starting audio driver" and "Jack driver: cannot connect output port".

Or sometimes Hydrogen will just crash.

5. I looked at the ~/.hydrogen/hydrogen.conf file and it refers to 
alsa_pcm, but I'm using freebob_pcm with the freebob driver. It also 
refers to PortMidi as the midi driver (the other choice is ALSA), but 
Jack reports the midi port as FreeBoB Jack MIDI. The driver I'm using in 
Jack is freebob.

I also tried importing the Hydrogen file into Rosegarden. That went a 
little better, I could see that the file contained the beats I input by 
doing a print preview. But still no sound.

I've attached both my ~/.hydrogen/.hydrogen.conf file and the output of
hydrogen -d jack --verbose - just in case they might help. (I normally 
start Hydrogen from the footprint menu.)

I see that some other users are having the same problems, there are a 
few threads in the Hydrogen forums, but no solutions:

http://www.hydrogen-music.org/forum/index.php?p=show&action=show_all&fid=5

Thanks for any help!

Take care,

-Susan


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