MSX HDMI mutlimedia card

Страница 29/56
22 | 23 | 24 | 25 | 26 | 27 | 28 | | 30 | 31 | 32 | 33 | 34

By Grauw

Ascended (9479)

Аватар пользователя Grauw

04-12-2014, 01:30

Can you tell if it actually mixes the 5 channel values before outputting? Or does it time-slice them, like I believe the OPLL (YM2413) does?

By maxis

Champion (512)

Аватар пользователя maxis

04-12-2014, 01:36

Grauw wrote:

But, I believe that particular song is used in the Night City msxdev game: http://msxdev.msxblue.com/wp-content/plugins/download-monitor/download.php?id=86

Thank you. Would it be compatible with Konami SCC mapper?

By maxis

Champion (512)

Аватар пользователя maxis

04-12-2014, 01:40

Grauw wrote:

Can you tell if it actually mixes the 5 channel values before outputting? Or does it time-slice them, like I believe the OPLL (YM2413) does?

Let me check it again. The last SCC assault was done in August Smile And I was more consumed by the fact, that the multiplication algorithm is really weird for the small volume levels. Looks like I'll have to revisit all the test and run them on both original and emulated platforms.

By Grauw

Ascended (9479)

Аватар пользователя Grauw

04-12-2014, 01:55

maxis wrote:

Thank you. Would it be compatible with Konami SCC mapper?

It seems to be using the ASCII8 mapper.

But if it’s too much trouble, Usas is also a good candidate for now Smile. I know the music by heart.

maxis wrote:

Let me check it again. The last SCC assault was done in August Smile And I was more consumed by the fact, that the multiplication algorithm is really weird for the small volume levels. Looks like I'll have to revisit all the test and run them on both original and emulated platforms.

Cool, I’m very curious Smile.

I think it would save 4 internal registers + mixing logic, so I wouldn’t be too surprised if this was the case… Assuming I got my facts about the OPLL straight and that method actually works.

By maxis

Champion (512)

Аватар пользователя maxis

05-12-2014, 10:50

@Grauw,

You were right about something being OFF.
I've found a copy-paste bug in the memory sequencer. Instead of reading 1+2+3+4+5, Procyon SCC was reading 1+2+3+4+4 from the memory. As the result - double volume on the channel 4 and channel 5 is OFF.

After adjusting the mixing levels between SSG and SCC, I'll prepare the recording again.

By Grauw

Ascended (9479)

Аватар пользователя Grauw

05-12-2014, 12:48

Great to hear I’m not crazy! Smile I had thought it would be something like that!

Looking forward to hear the new recording.

Btw, are the sources available somewhere in a public version control? I don’t understand VHDL all that well, but I’m a bit curious. And, have you considered making a trip to Nijmegen next month? Smile

By maxis

Champion (512)

Аватар пользователя maxis

05-12-2014, 14:53

Grauw wrote:

Btw, are the sources available somewhere in a public version control?

No, not yet. I'll publish the work only when the platform will reach the good maturity level and planned feature set.
All the FPGA code is developed in Verilog RTL (also from the scratch like the indigenous system architecture).

Grauw wrote:

And, have you considered making a trip to Nijmegen next month? Smile

I'll try participating in Nijmegen fare, but the plans are too volatile for the next month.

And thank you for the feedback. Sometimes the User Experience (UX) test does actually work. Smile

By maxis

Champion (512)

Аватар пользователя maxis

19-12-2014, 21:04

Here is the new audio DEMO take #2 after the SCC channel No5 bug was fixed. Also the SSC and SSG are correctly mixed and the new downsampler/antialiasing filter is installed.

@Grauw,
Does it sound better? Could you, please, share your opinion? Thank you.

By gamemastermaarten

Master (164)

Аватар пользователя gamemastermaarten

19-12-2014, 21:11

I've already seen last month that there are people who are getting the Gameboy via the HDMI cable in HD picture. Smile2 But let's not forget this person . Who is trying to get the MSX in HD. Crying

By Grauw

Ascended (9479)

Аватар пользователя Grauw

20-12-2014, 01:31

maxis: Sounds great now! Smile

Страница 29/56
22 | 23 | 24 | 25 | 26 | 27 | 28 | | 30 | 31 | 32 | 33 | 34