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  • Re: Mockingboard

    From mjmahon@mjmahon@aol.com (Michael J. Mahon) to comp.sys.apple2 on Friday, July 25, 2003 01:21:35
    From Newsgroup: comp.sys.apple2

    Eric asked:

    Can anyone tell me what is the difference between this two versions of >Mockingboard:

    1. Mockingboard SSP2000 Rev D - 1985
    2. Mockingboard 'C' - 1983

    I thought card 2 is more superior than card 1. But card 1 was made 2 years >later.

    It would help to know what differences are observable, if you have them.

    Since the sound generation is identical, I presume the difference is in
    the speech synthesis...?

    Later cards used the SSI-263 chip, which has a couple of bugs that
    the earlier SC-01 chip did not have. I have found it particularly
    noticeable after "glottal stops", when a distinct electronic "pop"
    is audible with the 263 that was not present with the SC-01.

    -michael

    Check out amazing quality 8-bit Apple sound on my
    Home page: http://members.aol.com/MJMahon/
    --- Synchronet 3.18b-Win32 NewsLink 1.113
  • From Eric@lonewolf@hotmail.com to comp.sys.apple2 on Friday, July 25, 2003 23:29:29
    From Newsgroup: comp.sys.apple2

    Hi Michael,

    I do not have the newer card (SSP2000 Rev D) to learn the differences. Hopefully someone who has it can verify the problem.

    Eric

    "Michael J. Mahon" <mjmahon@aol.com> wrote in message news:20030724212135.10408.00000792@mb-m05.aol.com...
    Eric asked:

    Can anyone tell me what is the difference between this two versions of >Mockingboard:

    1. Mockingboard SSP2000 Rev D - 1985
    2. Mockingboard 'C' - 1983

    I thought card 2 is more superior than card 1. But card 1 was made 2
    years
    later.

    It would help to know what differences are observable, if you have them.

    Since the sound generation is identical, I presume the difference is in
    the speech synthesis...?

    Later cards used the SSI-263 chip, which has a couple of bugs that
    the earlier SC-01 chip did not have. I have found it particularly
    noticeable after "glottal stops", when a distinct electronic "pop"
    is audible with the 263 that was not present with the SC-01.

    -michael

    Check out amazing quality 8-bit Apple sound on my
    Home page: http://members.aol.com/MJMahon/


    --- Synchronet 3.18b-Win32 NewsLink 1.113
  • From mjmahon@mjmahon@aol.com (Michael J. Mahon) to comp.sys.apple2 on Saturday, July 26, 2003 22:58:23
    From Newsgroup: comp.sys.apple2

    Eric replied:

    "Michael J. Mahon" <mjmahon@aol.com> wrote in message >news:20030724212135.10408.00000792@mb-m05.aol.com...

    Eric asked:

    Can anyone tell me what is the difference between this two versions of
    Mockingboard:

    1. Mockingboard SSP2000 Rev D - 1985
    2. Mockingboard 'C' - 1983

    I thought card 2 is more superior than card 1. But card 1 was made 2
    years
    later.

    It would help to know what differences are observable, if you have them.

    Since the sound generation is identical, I presume the difference is in
    the speech synthesis...?

    Later cards used the SSI-263 chip, which has a couple of bugs that
    the earlier SC-01 chip did not have. I have found it particularly
    noticeable after "glottal stops", when a distinct electronic "pop"
    is audible with the 263 that was not present with the SC-01.
    Hi Michael,

    I do not have the newer card (SSP2000 Rev D) to learn the differences. >Hopefully someone who has it can verify the problem.

    Is the question about speech or sound? (As I said, all the
    Mockingboards use the same sound generation chip.)

    If speech, which chip does the board you have use? How many
    pins? And 0.300" width (SC-01) or 0.600" width (SSI-263)?

    I believe the reason the later cards used the SSI-263 is that
    the SC-01 was no longer being made. The SSI-263 is very much
    like the SC-01, but has a few "improvements" that were not
    thoroughly debugged.

    -michael

    Check out amazing quality 8-bit Apple sound on my
    Home page: http://members.aol.com/MJMahon/
    --- Synchronet 3.18b-Win32 NewsLink 1.113