[Milkymist-devel] [Democompo] Modplayer improvements

[Bengt Sjölén]

Hey,

About the MOD-player:

I haven't pushed yet but the F03 problem was not really an F problem  
and is solved. F(set speed) is working correct to my knowledge - also  
comparing our player to other players. The command that failed was the  
one the sets the sample position that was jumping a number of words  
instead of a number of samples which is the correct way. So the rythm  
of the beat in this mod was lost since it jumps into a sampled beat  
using that command.

One of the clicks were coming from that the declicking of volume  
changes was not working correctly. That is fixed now but there is one  
click remaining and that is at the end of a sample which is not fixed  
yet. Also there was an error in interpolation that is fixed that  
improves sound quality  a lot.


About ML401:

I finally got the last regulator I think (there is a big(!) box from  
silica waiting for me in the studio) but I've not been to the studio  
all week. Hope to go there to change it today or tomorrow and if I'm  
lucky then it will all be working :)
I did do some more thorough measurement with my digital oscilloscope  
and got steady 3.3V at 3.293V, steady 1.8V at 1.793V, steady 1.2V at  
1.190V and only the 2.5V missing, still 0.6V, and the 1.25V (that is  
derived from the 2.5V) at 0.3V so those look good so far.


Best,
Bengt




On 23 sep 2009, at 18.15, Sébastien Bourdeauducq wrote:

> Hi,
>
> I just added a new MOD file (made by Alban for the democompo) to the  
> Git
> repository that shows a missing effect. It seems the F03 command is  
> missing
> (speed command that sets 3 lines per beat).
>
> Also, the sound quality could be improved by implementing some  
> transition when
> a sample is interrupted by a new one. Here, they is a "hard cut" and  
> this
> could cause some "clicks" when the two waveforms do not merge nicely.
>
> Sébastien
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