Announcement

Collapse

Forum etiquette

Our mission ...

This forum is part of our mission to promote the preservation of vintage computers through education and outreach. (In real life we also run events and have a museum.) We encourage you to join us, participate, share your knowledge, and enjoy.

This forum has been around in this format for over 15 years. These rules and guidelines help us maintain a healthy and active community, and we moderate the forum to keep things on track. Please familiarize yourself with these rules and guidelines.


Remain civil and respectful

There are several hundred people who actively participate here. People come from all different backgrounds and will have different ways of seeing things. You will not agree with everything you read here. Back-and-forth discussions are fine but do not cross the line into rude or disrespectful behavior.

Conduct yourself as you would at any other place where people come together in person to discuss their hobby. If you wouldn't say something to somebody in person, then you probably should not be writing it here.

This should be obvious but, just in case: profanity, threats, slurs against any group (sexual, racial, gender, etc.) will not be tolerated.


Stay close to the original topic being discussed
  • If you are starting a new thread choose a reasonable sub-forum to start your thread. (If you choose incorrectly don't worry, we can fix that.)
  • If you are responding to a thread, stay on topic - the original poster was trying to achieve something. You can always start a new thread instead of potentially "hijacking" an existing thread.



Contribute something meaningful

To put things in engineering terms, we value a high signal to noise ratio. Coming here should not be a waste of time.
  • This is not a chat room. If you are taking less than 30 seconds to make a post then you are probably doing something wrong. A post should be on topic, clear, and contribute something meaningful to the discussion. If people read your posts and feel that their time as been wasted, they will stop reading your posts. Worse yet, they will stop visiting and we'll lose their experience and contributions.
  • Do not bump threads.
  • Do not "necro-post" unless you are following up to a specific person on a specific thread. And even then, that person may have moved on. Just start a new thread for your related topic.
  • Use the Private Message system for posts that are targeted at a specific person.


"PM Sent!" messages (or, how to use the Private Message system)

This forum has a private message feature that we want people to use for messages that are not of general interest to other members.

In short, if you are going to reply to a thread and that reply is targeted to a specific individual and not of interest to anybody else (either now or in the future) then send a private message instead.

Here are some obvious examples of when you should not reply to a thread and use the PM system instead:
  • "PM Sent!": Do not tell the rest of us that you sent a PM ... the forum software will tell the other person that they have a PM waiting.
  • "How much is shipping to ....": This is a very specific and directed question that is not of interest to anybody else.


Why do we have this policy? Sending a "PM Sent!" type message basically wastes everybody else's time by making them having to scroll past a post in a thread that looks to be updated, when the update is not meaningful. And the person you are sending the PM to will be notified by the forum software that they have a message waiting for them. Look up at the top near the right edge where it says 'Notifications' ... if you have a PM waiting, it will tell you there.

Copyright and other legal issues

We are here to discuss vintage computing, so discussing software, books, and other intellectual property that is on-topic is fine. We don't want people using these forums to discuss or enable copyright violations or other things that are against the law; whether you agree with the law or not is irrelevant. Do not use our resources for something that is legally or morally questionable.

Our discussions here generally fall under "fair use." Telling people how to pirate a software title is an example of something that is not allowable here.


Reporting problematic posts

If you see spam, a wildly off-topic post, or something abusive or illegal please report the thread by clicking on the "Report Post" icon. (It looks like an exclamation point in a triangle and it is available under every post.) This send a notification to all of the moderators, so somebody will see it and deal with it.

If you are unsure you may consider sending a private message to a moderator instead.


New user moderation

New users are directly moderated so that we can weed spammers out early. This means that for your first 10 posts you will have some delay before they are seen. We understand this can be disruptive to the flow of conversation and we try to keep up with our new user moderation duties to avoid undue inconvenience. Please do not make duplicate posts, extra posts to bump your post count, or ask the moderators to expedite this process; 10 moderated posts will go by quickly.

New users also have a smaller personal message inbox limit and are rate limited when sending PMs to other users.


Other suggestions
  • Use Google, books, or other definitive sources. There is a lot of information out there.
  • Don't make people guess at what you are trying to say; we are not mind readers. Be clear and concise.
  • Spelling and grammar are not rated, but they do make a post easier to read.
See more
See less

The forgotten IBM PS/1 Audio Card (with IBM PCjr / Tandy 1000 sound)

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    The forgotten IBM PS/1 Audio Card (with IBM PCjr / Tandy 1000 sound)

    This seems to be a forgotten sound card in the history of PC audio:

    Originally posted by IBM PS/1 press release
    AUDIO CARD DESCRIPTION:

    The Audio card, which fits into the system unit, includes the following:

    3 voice synthesizer plus noise generator
    Joystick connector for one Joystick
    Microphone connector
    MIDI interface connector

    The MIDI cable, provided with the Audio card and Joystick option, splits the single audio card midi connector into the industry standard MIDI in/out/through.

    Since this card has been designed exclusively for the IBM Personal System/1 Computer, applications wanting to take advantage of all its capabilities have to be written specifically for the IBM PS/1 Computer.

    MIDI applications available today in the market will not run on an IBM PS/1 Computer unless re-written to the IBM PS/1 hardware interface (device driver).
    The "3 voice synthesizer plus noise generator" sounds an awful lot like our old friend, the IBM PCjr / Tandy 1000 sound system... and the microphone connector and joystick port implies that it has the functions of the Tandy DAC audio, too.

    The "Sound Cards That Time Forgot" thread says "IBM PS/1 Audio/Joystick Card: This is not an ISA card, but connected to a special connector on the early IBM PS/1 systems. It is capable of three-voice music (like a Tandy 1000?) and digitized sounds. More than that is unknown. It also a gameport and a midi port."

    I found this video on YouTube, and indeed, the PS/1 audio card sounds identical to PCjr / Tandy 1000 sound on Silpheed, plus DAC audio for the digitized speech:



    In addition to having DOS in ROM, it sure looks like IBM was trying to copy Tandy, and also to keep the best feature of their own PCjr!

    #2
    I think that sounds pretty good! I bought a 2011 model a little while back but didn't do my homework, I didn't realise that they don't have ISA slots, and that my only option for expanding the sounds is one of these impossible to find "sounds cards that time forgot".

    I saw a thread a while back in which someone described making their own, it may even have been here??

    Comment


      #3
      Yes, I built an AdLib compatible sound card based on the OLP3 chip that plugs on that connector. The PS/1 Audio Card is supported only in a few games, having an AdLib compatible card is a better option.
      My videos:
      IBM PS/1 model 2011 restored and enhanced
      IBM PC Advanced Diagnostics Cassette load

      Comment


        #4
        According to the list on Mobygames, the PS/1 Audio Card was supported by 60 games, mostly by Sierra. Silpheed was updated to support it (in version 3.2), and was bundled with the card:



        It can also be used in Sierra games in conjunction with a Roland MT-32 synthesizer connected to the MIDI/joystick port, with the 3-voice/DAC chip providing the sound effects and the MT-32 providing the music.

        Comment


          #5
          I looked for a PS/1 Audio Card for a few years. Enough folks have them that they're not as rare as some things. The MIDI capabilities are definitely a nice addition, and make for one area where IBM one-upped Tandy's PSSJ.

          It's a shame IBM didn't follow Rob Hubbard's advice...

          http://www.youtube.com/watch?v=90YE4G3ze-E&t=5m36s

          Comment


            #6
            Ah yes, I remember that card. I saw it as part of an overpriced kit deal in ebay years ago. Always wanted to see how well it performed.
            [Need something to waste time on? Click here to visit my YouTube channel CelGenStudios]
            --------------------------------------------------------------------------------------------
            [No time for videos? Click here to visit my Twitter feed @CelGenStudios]

            = Excellent space heater

            Comment


              #7
              Man, I wish I had that Silpheed original floppy... One of the few from that era that I'm missing from the collection! hehe... but - it's something left to hunt!!
              ---
              Currently seeking:
              * Roland MPU-401/AT (with daughter card header)
              * Magitronic K-156 Keyboard (5pin DIN w/ XT-AT switch)
              I also collect PC and C64 Sierra On-Line software!

              Comment


                #8
                Originally posted by Maverick1978 View Post
                Man, I wish I had that Silpheed original floppy... One of the few from that era that I'm missing from the collection! hehe... but - it's something left to hunt!!
                Well, if just the contents will suffice:

                http://queststudios.com/smf/index.php/topic,3506.0.html

                Comment


                  #9
                  Thanks for the link, cloud, then and now! I actually saw that quite awhile back. I'm just a Sierra nut after the disk for my collection...
                  ---
                  Currently seeking:
                  * Roland MPU-401/AT (with daughter card header)
                  * Magitronic K-156 Keyboard (5pin DIN w/ XT-AT switch)
                  I also collect PC and C64 Sierra On-Line software!

                  Comment


                    #10
                    I finally got the PS/1 audio card, New In Box! I paid more for it than I did for the PS/1 computer itself, but such is life.

                    But mine came bundled with "Where In The World Is Carmen Sandiego?" instead of Silpheed, and Cloudschatze's link above is now dead. Does anyone have a copy of the PS/1 version of Silpheed?


                    (click to embiggen)

                    Comment


                      #11
                      It's a version I don't have archived, sadly. Picture here: http://myweb.tiscali.co.uk/djsite/SilpheedSoundCard.jpg

                      Hopefully someone can locate it.
                      Offering a bounty for:
                      - A working Sanyo MBC-775 or Logabax 1600
                      - Music Construction Set, IBM Music Feature edition (has red sticker on front stating IBM Music Feature)

                      Comment


                        #12
                        Originally posted by vwestlife View Post
                        ...Cloudschatze's link above is now dead.
                        http://www.symphoniae.com/misc/SILPHEED/silpps1.zip


                        I bought this bundle back in 2013:


                        Wasn't aware that IBM had a separate bundle for parents who hate their children.

                        By-the-way, here is a driver package that extends support of the PS/1 audio card (both MIDI and "4-voice") to Sierra's SCI0-based adventure games, along with Thexder II. You're probably already aware that Sierra's later titles (up until SCI32) shipped with PS/1 audio card support.

                        ftp://ftp.oldskool.org/pub/IBM_PC_BBS/ps1/instdrv.exe

                        Comment


                          #13
                          So what's the sound chip under the hood? I'm suspecting a clone of the TI SN76489, maybe in that big VLSI array, since that sound architecture was what was in the PCjr and Tandy 1000.
                          I use my C128 because I am an ornery, stubborn, retro grouch. -- Bob Masse
                          Various projects and oddities: http://oldvcr.blogspot.com/
                          Machine room: http://www.floodgap.com/etc/machines.html

                          Comment


                            #14
                            Hum, 286, VGA and PCjr sound? Someone should make a demo about that!
                            http://scalibq.wordpress.com/just-ke...o-programming/

                            Comment


                              #15
                              This thread goes into some technical detail about how that card worked: http://www.vogons.org/viewtopic.php?t=18327

                              Comment

                              Working...
                              X