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- Path: sparky!uunet!munnari.oz.au!yoyo.aarnet.edu.au!arnie.systems.sa.gov.au!roads.sa.gov.au!walsh
- From: walsh@roads.sa.gov.au
- Newsgroups: comp.os.vms
- Subject: VAXstation 4000 sound port ?? (again)
- Message-ID: <1992Jul21.202152.46@roads.sa.gov.au>
- Date: 21 Jul 92 20:21:52 GMT
- Organization: DEPARTMENT of ROAD TRANSPORT
- Lines: 73
-
- Hi, does anyone know how to produce sound out of the headphone/telephone
- socket of a VAXstation VLC or model 60 ? Does anyone know of any demo
- files for this equipment (do they come with VMS 5.5 ?) ? Maybe a DIGIT
- could offer some advice/demofiles ?
-
- We just received a few of these boxes and don't know how to work that bit.
- The news group alt.binaries.sounds.d yielded the FAQ advice below which
- didn't work at all for us (no sound came out the telephone headset that
- we plugged in).
-
- Also, a file we sourced from a.b.s.misc and UUDECODEd gave us an error
- something like `record size too big' when we tried to copy it to the
- device mentioned below. Is that due to the file type created by the 'C'
- version of UUDECODE that we have ? Does anyone have any clues as how we
- could we convert that type of decoded file into something we could use ?
-
- Ta in advance, Dave.
- ------------------------------------------------------------------------------
- VAXstation 4000 U-LAW 8k 1
-
- The new VAXstation 4000 series lets you PLAY audio (.au) files, and
- the as-of-yet-unreleased package, DECsound, will let you do the
- recording.
-
- - Work is currently in progress to get SOX ported to VMS (watch
- comp.os.vms for announcements).
-
- SOX usage hints:
-
- - When converting linear samples to U-LAW using the .au type for the
- output file, you must specify "-U" for the output file, otherwise
- you will end up with a file containing a NeXT/Sun header but linear
- samples -- only the NeXT will play such files correctly. Also, you
- must explicitly specify an output sampling rate with "-r 8000".
- (This may seem fixed for most cases in version 5, but it is still
- occasionally necessary, so I'm keeping this warning in.)
-
- Vaxstation 4000
- ---------------
-
- ".au" files can be played by COPYING them to device "SOA0:". This
- device is set up by enabling the driver SODRIVER, as described below:
-
- DEC's sound stuff is like most other new toy. Hardware first, THEN the
- software. DEC will soon be releasing a layered product called DECsound,
- which will let you record, play, and (possibly) manipulate sound files.
- Third party product(s) have ALREADY hit the market.
-
- Enabling SODRIVER: (you can use the following command file)
-
- $!---------------- cut here -------------------------------
- $! sound_setup.com enable SOUND driver
- $ run sys$system:sysgen
- connect soa0 /adapter=0 /csr=%x0e00 /vector=%o304 /driver=sodriver
- exit
- $ exit
- $!----------------- cut here ------------------------------------
-
- The external audio port comes with a telephone-jack-like port. For
- starters, you can plug a telephone RECEIVER right into this port to
- hear your first sound files. After that, you can use the adapter
- (that came with the VaxStation), and plug in a small set of stereo
- speakers (the kind you'd plug into a WALKMAN, for example), for more
- volume.
- ------------------------------------------------------------------------------
- +---------------------------------------------------------+
- | Dave Walsh, Dept. of Road Transport, South Australia. |
- +---------------------------------------------------------+
- | Email: walsh@sysdev.roads.sa.gov.au |
- | Post : Dept. of Road Transport, Information Technology, |
- | PO Box 1, Walkerville, South Australia, 5081. |
- | Phone: +61 8 343 2559 Fax: +61 8 343 2768 |
- +---------------------------------------------------------+
-