Re: Am I the only one not able to send out audio?

Diane Marie Chan (daschan@pop.jaring.my)
Sat, 14 Feb 1998 11:35:12 +0800


Thanks to everyone who has replied. These are the responses I've received,
and my comments in CAPS. Finally seems to be working okay.

FROM Olivier Heinry @ EX-TV Internet Television Program:
>did you check the sending receiving rates?
>when you're on a 28.8, there's not much bandwidth left, if you keep your
>eyes wide open.

SENDING/RECEIVING RATES: JUMPS TO 42 KBPS WHEN TRANSMITTING/RECEIVING A
SIMPLE MESSAGE SUCH AS "Can you hear me?" BUT I AM USING DEFAULT SETTINGS
FOR TRANSMISSION AND RECEPTION (AFRAID IT'S ALL GREEK TO ME).

>you might try sendin audio while not sendin receivin video for a beginning

THIS APPEARS TO BE THE SOLUTION; WHEN I DISABLED SENDING VIDEO, ABLE TO
TRANSMIT SOUND, WITHOUT ERROR, USING INTEL COMPRESSION. HOWEVER, THE SOUND
QUALITY WAS VERY CHOPPY, SO I ATTEMPTED TO PLAY AROUND WITH OTHER
COMPRESSION TYPES. THE OTHER PARTY TO CONFERENCE SELECTED A-MOD (16 KB/S)
AND THE SOUND CAME ACROSS SIGNIFICANTLY BETTER ON MY MACHINE. HOWEVER, WHEN
I SELECTED A-MOD (16 KB/S) COMPRESSION AND BEGAN TO TRANSMIT AUDIO,
IMMEDIATELY THE SAME OLD CRASH SYMPTOMS MANIFEST. UPON RESTART AND
RECONNECTION TO THE CONFERENCE, RESUMED USE OF INTEL COMPRESSION AND
TRANSMITTED AUDIO WITHOUT ANY PROBLEM.

>i dont think it's elated to yout PPC since i managed sendin audio on a
>6100/60 runnin 7.5.1, a much more "weaker" configuration than yours!!!
>
>cya
>
>Olivier Heinry @ EX-TV Internet Television Program

FROM Derald Grimwood:
>While I'm not an Apple expert here are some items you might want to
>consider.
>
>This is from the Apple Web.
>
>Q The Power Macintosh 9500 Developer Note says that the sound-in port
>for the 9500 has 4-conductor requirements. What is the 4-conductor
>pinout?
>Does the PlainTalk microphone work on the 9500?
>
>A The 9500 has stereo in (supporting left, right, power, and ground) and
>requires a mini stereo plug that you can buy today -- no wacky new
>pinouts. The
>PlainTalk microphone works fine on the 9500.
>
>But what about your 7200 - they're insinuating some models do have
>"wacky new pinouts"?

I'M NOT AWARE OF ANY PROBLEM WITH THE "STEREO IN" PORT OF MY 7200.
PLAINTALK MIC WORKS FINE WITH OTHER APPLICATIONS.

COME TO THINK OF IT, FOR SOME TIME, I HAVE HAD PROBLEMS WITH SOUND OUTPUT.
SUDDENLY ONE DAY SOUND REFUSED TO COME OUT THROUGH CPU SPEAKER. AT FIRST
SUSPECTED HARDWARE FAULT, CHECKED BATTERY, ETC. PLUGGED IN TO MONITOR'S
SPEAKERS INSTEAD. THEN ONE DAY WAS PLAYING WITH THE SOUND VOLUMES CONTROL
PANEL AND SAW THAT THE SOUND OUTPUT HAD BEEN "MUTED." I CLICKED IN THE BOX
TO DESELECT MUTED, AND THEN WHEN I MANIPULATED THE VOLUME, SUDDENLY THE CPU
SPEAKER WORKED. BUT WHEN I DISCONNECTED THE MONITOR'S SPEAKERS, NO SOUND AT
ALL--NOT EVEN FROM CPU SPEAKER. RECONNECTED MONITOR'S SPEAKERS AND VOILA,
SOUND CAME OUT FROM THE CPU SPEAKER. BUT THEN, AFTER A SHORT WHILE, SOUND
SWITCHED TO THE MONITOR'S SPEAKERS. AGAIN I CHECKED THE CONTROL PANEL AND
SAW THAT THE "MUTED" OPTION HAD BEEN TICKED. THIS WAS HAPPENING WHILE USING
MACOS 7.5.2-7.5.5. I FIGURED THAT IT MUST BE DUE TO SOME BUG OR CONFLICT,
AND SINCE IT DIDN'T MUCH MATTER TO ME (THE CPU SPEAKER IS LOUSY ANYWAY), I
LEFT IT ALONE. ANYWAY, I DOUBT THAT THIS IS RELATED TO THE PROBLEM I HAVE
HAD TRANSMITTING SOUND VIA MODEM!

>Do you have plain-talk installed? Try temporarily removing the
>extensions in case they are conflicting with cu-seeme. Check to see if
>you have the latest version 1.4.1.

PLAIN TALK NOT INSTALLED.

>http://swupdates.info.apple.com/cgi-bin/lister.pl?Apple.Support.Area/App
>le.Software.Updates/US/Macintosh/System/Speech/PlainTalk_1.4.1
>
>This seems the most likely problem. Apparently the 7200 family has
>problems with their timing. Please read the following. I've included a
>URL below if you think this may help your problem.
>
>Name: PCI Timing Update
>Version: 1.0
>Released: December 4, 1997 (Previously released by Power Computing)
>Requires:
>Power Computing 7200-based systems including the PowerTower,
>PowerCenter, and PowerCurve family computers.
>Description:
>Power Computing's PCI Timing Update extension is designed to correct a
>timing behavior which may cause intermittent issues on some PCI cards
>when used with Mac OS computers based on the original 7200 logic board
>design. This update is only intended for Power Computing 7200-based
>systems including the PowerTower, PowerCenter, and PowerCurve family
>computers and will not function on non-Power Computing machines. Known
>occurrences of irregular behavior due to the PCI timing issue are: Users
>with ATI XClaim GA and XClaim VR video accelerator cards experience
>intermittent choppy sound.
>
>This software consists of a Disk Copy NDIF (New Disk Image Format)
>compressed image, which requires Disk Copy 6.1 or later to use. Download
>this software to your hard drive and then double-click it to use it.
>Disk Copy is available in the Utilities folder.
>
>Disk Copy 6.1 (or later) or Disk Image Mounter 2.1 (or later) from Apple
>are the recommended applications to access all disk images released by
>Apple and are the only supported applications to access NDIF disk
>images.
>
>Updates are available at...
>
>http://swupdates.info.apple.com/cgi-bin/lister.pl?Apple.Support.Area/App
>le.Software.Updates/US/Power_Computing
>

MY 7200 IS AN APPLE POWERPC, NOT POWER COMPUTING CLONE.

>I hope this helps. Please let me know.
>
>Derald

FROM Paul Eykamp:
>I have had success on a PPC 6115/60 so processor power is not a problem.
>I have not experience your problem, but you might check the settings for
>audio in the AV system control panel.
>
>I will try to run .87b3 this weekend and see if I have a similar problem
>now that I am on 8.0
>
>Paul

MY 7200 IS NOT AN AV MAC.

FROM Greg Miller:
>I used to have the same problem with my last mac. The only way I could
>get the audio to work was to start cuseeme before I dialed up with the
>modem. Then no problems.
>
>If I tried to start cuseeme after connecting....CRASH! Everytime.
>
>I had a Performa 6300 with Built in video and the same modem as you.
>
>Greg Miller

TRIED TO CONNECT ON-LINE BY STARTING UP CU-SEEME, BUT RECEIVED ERROR
MESSAGE: "Can't open MacTCP. Err=-3198." (I'M USING MACPPP WITH TCP/IP).

MANY THANKS TO ALL FOR YOUR INPUT.--Das Chan