English Amiga Board


Go Back   English Amiga Board > Main > Nostalgia & memories

 
 
Thread Tools
Old 04 December 2002, 00:03   #1
mtb
Registered User
 
Join Date: Sep 2002
Location: Italy
Age: 35
Posts: 442
AY-YM chips

What are the differences between the ay-3 8192 sound chip ( used by spectrum 128k and amstrad cpc ), the ym-2149 used bu the atari st and the one ( i think ym-2160 ) used by sega megadrive ( i suppose this last has got more channels )?

I like a lot the tune from the speccy game zub ( mastertronic ).

Does someone is able to tell me how can i stream it to wav ?

Thanx in advance.
mtb is offline  
Old 04 December 2002, 01:35   #2
Akira
Registered User

Akira's Avatar
 
Join Date: May 2001
Location: New York
Posts: 19,265
The YM 2160 is not compatible with the other two, it's a whole new chip. But the AY8192 and the YM2149 are almost the same. I think the differences between them lie in the way both generate the waveforms, and nothing else. So you oculd theoretically take a tune done in a YM2149, and play it in an AY8192, but they will sound different.

The frequencies at which they run in teh different machines are different too. It's not the same in the Speccy 128k, the Amstrad CPC or the Atari ST.

Hope that helps
Ah, about streaming.. There are a number of Winamp plugins for that purpose.
Akira is offline  
Old 04 December 2002, 10:04   #3
Tommo
 
Posts: n/a
The AY8192 and the YM2149 are exactly the same. There isn't any difference in the way they generate waveforms.
 
Old 04 December 2002, 15:08   #4
Akira
Registered User

Akira's Avatar
 
Join Date: May 2001
Location: New York
Posts: 19,265
There ARE diferences. I'll quote Ben Daglish.
Quote:
Ben Daglish dixit:
I prefer AY8192 because the sub-modulated square-generated harmonic frequency distribution was more to my liking.
I tried to find a doc describing the differences between the two, but the only one I found was in russian, so I can't understand pish
Akira is offline  
Old 08 December 2002, 10:55   #5
mtb
Registered User
 
Join Date: Sep 2002
Location: Italy
Age: 35
Posts: 442
Thanks to all.

The winamp plugin opens only few ay files and the quality is not so good.

I have tried Zx Spectrum Sound Chip Emulator - the quality and the compatibility is better,
but i don't know how to stream to wav.

I think i have to change something in the control panel to use a file instead of the sound card for output ( i am using a cheap integrated cmedia ).

In control panel -> sound i see:

Audio - playback: options avaible are cmedia wave device and line #0 modem. Is it possible to stream to wav?

Thanx in advance.
mtb is offline  
Old 15 December 2002, 12:48   #6
mtb
Registered User
 
Join Date: Sep 2002
Location: Italy
Age: 35
Posts: 442
If someone interested:

Zx Spectrum Sound Chip Emulator :

Russian people are strange...

To save ay or ym files to wave you have to open the PLAYLIST and click with the right mouse button.
mtb is offline  
Old 31 December 2002, 02:10   #7
mtb
Registered User
 
Join Date: Sep 2002
Location: Italy
Age: 35
Posts: 442
In that program there is also a switch ay - ym. The difference is quite noticeable!
mtb is offline  
Old 01 January 2003, 02:06   #8
Akira
Registered User

Akira's Avatar
 
Join Date: May 2001
Location: New York
Posts: 19,265
I told you they were NOT the same.
Akira is offline  
Old 01 January 2003, 13:58   #9
Tommo
 
Posts: n/a
The only difference I noticed is that the AY volume is slightly louder. They sound the same in every other respect.
 
Old 01 January 2003, 18:22   #10
Akira
Registered User

Akira's Avatar
 
Join Date: May 2001
Location: New York
Posts: 19,265
Well, as I said, if I could read russian, I would tell you the differences. but they are there

Seems like the parameters behave differently so they don't synthesize the same way.
Akira is offline  
Old 04 January 2003, 14:27   #11
mtb
Registered User
 
Join Date: Sep 2002
Location: Italy
Age: 35
Posts: 442
@akira

i know you told me they are different. With that program you can also ear the difference, confirming what you wrote.
mtb is offline  
Old 24 February 2003, 22:06   #12
mtb
Registered User
 
Join Date: Sep 2002
Location: Italy
Age: 35
Posts: 442
I have mailed the author of ZxSpectrumSoundChipEmulator ( Sergey Bulba ):


Article about AY and YM differences you can find at my site (http://bulba.at.kz), but it in Russian. So, I'll tell you something now. For listener AY is a little bit louder than YM, because of YM has some steep DAC output graph (YM is closer to logarithmic, than AY). Therefore some music melodies on AY can be called as "legato" and on YM as "staccato". Some musicians use special effect - sound via envelope generator (some cool bases). So, such effects will be different on AY and YM (AY little bit silent without some hi freq harmonics). Main cause is different DACs and also AY has only 16 output levels on envelope generating, and YM has 32 ones.

AY-3-8912 and AY-3-8910 both has identical sound, only YM2149 is a little different sound. But they are complete software analogs anyway.
mtb is offline  
Old 24 February 2003, 22:42   #13
Akira
Registered User

Akira's Avatar
 
Join Date: May 2001
Location: New York
Posts: 19,265
Thanks for that info!
Akira is offline  
Old 25 February 2003, 15:12   #14
Zilog
 
Posts: n/a
I suggest you use the excellent Deliplayer (PC version) for streaming instead of Winamp. V2 beta is out and is very neat.
 
Old 25 February 2003, 17:33   #15
Akira
Registered User

Akira's Avatar
 
Join Date: May 2001
Location: New York
Posts: 19,265
Quote:
Originally posted by Zilog
I suggest you use the excellent Deliplayer (PC version) for streaming instead of Winamp. V2 beta is out and is very neat.
But the AY replayer is not as accurate as the russian program's one.
Akira is offline  
Old 25 February 2003, 17:37   #16
Zilog
 
Posts: n/a
stupid me !! RIGHT !! :hoo :hoo :hoo
 
Old 26 February 2003, 22:08   #17
Antiriad
The Sacred Armour Of
Antiriad's Avatar
 
Join Date: Aug 2002
Location: Sussex, UK
Age: 39
Posts: 1,141
I was going to write to the guys behind the Catweasel Mk3 why they hadnt considered having the option to stick a AY-YM chip in there as an alternative to a SID
Antiriad is offline  
 


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
CIA chips Yakumo9275 support.Hardware 3 23 March 2013 19:56
Which are the hottest chips source Hardware mods 1 15 August 2012 12:27
Chips Challenge Champions_2002 request.Other 2 30 August 2010 11:53
Sourcing yet more chips Zetr0 MarketPlace 0 12 November 2007 02:02
Sid Chips, which one to get? ElectroBlaster support.Hardware 13 18 November 2005 20:43

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +2. The time now is 13:12.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Page generated in 0.08332 seconds with 12 queries