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1

MilkyTracker Community / Re: play pattern backwards...

« on: October 10, 2010, 19:47:54 »

[...] All you need is the pattern break command, and if you just want to use one order item, you also need pattern jump.

The question was how its done.. not the specific song.

Thx for the hint, I figured it out. The pattern break command has to sit to the right of the pattern jump. So as:

POT 01:

1 ... .. .. B02 ... .. .. ..
2 ... .. .. B01 ... .. .. D01
3 ... .. .. B01 ... .. .. D02
4 ... .. .. B01 ... .. .. D03 <--- we jump in here

2

MilkyTracker Community / play pattern backwards...

« on: October 09, 2010, 16:07:59 »

Hi,

I once saw how backward playback is done using a combination of Dxx and (prob.) Bxx [or E6x]. But I cant find the song... and I dont remember either. Please help me out.

Anyone?

3

MilkyTracker Support / Re: wired keyboard layout thing

« on: July 30, 2010, 14:32:42 »

Hi,
I compiled MT from source and then something strange happened: my keyboard (QWERTZ) was "confused", eg:

Q -> D-6
W -> E-6
E -> F-6
R -> G-6
T -> not assigned ?!
Z -> not assigned ?!
U -> not assigned ?!
I -> C#4
O -> D#4

I tried the -nonstdkb command line option: then I have a normal QWERTY layout.
strange... how could this be?

4

MilkyTracker Support / Re: trouble getting jack to work...

« on: July 29, 2010, 15:00:48 »

Thanks for the quick hint!

I got libjack-dev and everything is fine.

As for the sdl_audio/alsa errors: these drivers work also - jack was running using them (single client). I dont use pulseaudio here on puppylinux.

Thx a ton!

5

MilkyTracker Support / trouble getting jack to work...

« on: July 29, 2010, 11:14:23 »

Hi,

i am running a ubuntu jaunty kernel with ubuntu packages and I can't get MT to use the Jack audio driver.
First I tried MT v0.90.80 and it said: "JACK: Can't load libjack (is it installed?)"
... although these files were present in /usr/lib/ :

# ls libj*
libjack               libjackserver.so.0       libjack.so.0
libjack-0.100.0.so.0  libjackserver.so.0.0.28  libjack.so.0.0.28

libjack0.100.0:
inprocess.so  jack_alsa.so   jack_firewire.so  jack_net.so
intime.so     jack_dummy.so  jack_freebob.so   jack_oss.so

~~~~~~

Next I compiled v0.90.85 from source (with and without patches, makes no difference). The select driver dialog now offers: alsa | sdl_audio.

I get the following errors when switching between alsa and sdl_audio with different buffer sizes:

# /usr/local/bin/milkytracker
ALSA lib pcm_dmix.c:874:(snd_pcm_dmix_open) unable to open slave
E: socket-client.c: socket(): Address family not supported by protocol
SDL: Failed to open audio device! (buffer = 8192 bytes)..
SDL: Try setting "Force 2^n sizes" in the config menu and restarting.

edit: deleted the similar err. messages.

I wonder if jack support is present here?!

urban

6

MilkyTracker Feature Requests / Re: A new feature idea

« on: May 31, 2010, 08:26:22 »

   
ChannalMixer.cpp, line 126 says:

for (mp_uint32 c=0;c<numChannels;c++)
   {   
[...]
   }

in this loop the signals are summed up one channal after the other. Would it be possible to init a buffer for each channel and write the channal's signal into it?


I can't help with C++ programming, but I can answer most questions about audio signal processing. Looking at the jack_autoconnect patch it seems knowledge of jack functions is also there...

7

MilkyTracker Feature Requests / Re: A new feature idea

« on: May 27, 2010, 20:51:30 »

Hi,
i'm carloratm, the author of a very little patch to autoconnect Milky
to Jack Audio Server forst outputs.

... where to find your patch?1

8

MilkyTracker Community / Re: Filter Algorithms

« on: September 25, 2008, 04:33:26 »

@barryvan: Oh thx, I see. You can get a pretty good trade-off between frequency selection , floating windows (frequency dependent, different types) , and FFT length. So you have to know (analyze) the input signal.

9

MilkyTracker Community / Re: Filter Algorithms

« on: September 25, 2008, 03:30:33 »

If you do want to do work with FFTs, there are ways and means to get around windowing difficulties, like sliding windows, pyramid schemes, combinations thereof, limited number of frequencies analysed, and a lot more. Bear in mind, though, that they're likely to be a tad processor-hungry for low-powerered devices like the DS.

I'd like to know more about these windowing tricks. What pyramid schemes ?

The only thing I know is, that I compared an offline convolution to a FFT based realtime convolution (reverb here) and the difference in sound quality was disappointing. The non-FFT-based implementation sounded way better to me. I also compared transposing tools in Max/MSP. The difference was not so clear and depended on source material.

10

MilkyTracker Community / Re: Filter Algorithms

« on: September 24, 2008, 22:35:31 »

yes, dspguide is great stuff and its free. Just want to mention that FIR and IR filters are different concepts. This is all very clear described in dspguide. I personally avoid realtime implementations which depend on FFT because of artifacts in the time domain (windowing), but this is sort of OT here.