For some time I've been using OHP (Tony Still& Photodesk) very
successfully to produce presentations which include visual and
audio..
To associate an audio file with a still in the Scripts window you
just drop it on top. OHP accepts WAV files which I am using. This
has always worked flawlessly in the past. I've usually done it on
my FAT RISC OS 5 machine but I'm away at the moment and using
Virtual Acorn Adjust 4.39 Windows 10 Acer netbook
I think I've done it on this machine as well but can't remember.
This time I get an error message
Sound file unusable: Couldn't auto-detect sample format.
The sound files seem not to be corrupted as they play perfectly
with Andre Timmermans' Digital CD.
In Reporter I see a list of filetypes set for Digital CD one of
which is
FB1 WaveForm
In my MimeMap I see the line
audio/L16 WaveForm fb1 .wav .l16 .AIFF
Is .116 an alternative RISC OS filetype?
Any idea what might be going on?
Verified that correct format is WaveForm.
In my MimeMap I see the line
audio/L16 WaveForm fb1 .wav .l16 .AIFF
Mines the same.
Is .116 an alternative RISC OS filetype?
In article <5c97b7d08dmec@npost.uk>, Chris Newman <mec@npost.uk>
wrote:
For some time I've been using OHP (Tony Still& Photodesk) very
successfully to produce presentations which include visual and
audio..
Excellent bit of software - pity it's no longer being developed.
To associate an audio file with a still in the Scripts window you
just drop it on top. OHP accepts WAV files which I am using. This
has always worked flawlessly in the past. I've usually done it on
my FAT RISC OS 5 machine but I'm away at the moment and using
Virtual Acorn Adjust 4.39 Windows 10 Acer netbook
I think I've done it on this machine as well but can't remember.
Probably best to check on a dedicated RISC OS 5 machine. I've
checked WAVs play correctly on OHP on my ARMX6 (RISC OS 5.31)
and Raspberry Pi 4 (RISC OS 5.30).
This time I get an error message
Sound file unusable: Couldn't auto-detect sample format.
Never seen this.
The sound files seem not to be corrupted as they play perfectly
with Andre Timmermans' Digital CD.
In Reporter I see a list of filetypes set for Digital CD one of
which is
FB1 WaveForm
Verified that correct format is WaveForm.
In my MimeMap I see the line
audio/L16 WaveForm fb1 .wav .l16 .AIFF
Mines the same.
Is .116 an alternative RISC OS filetype?
Don't know.
Any idea what might be going on?
Apart from verifying that WAV files work correctly in my OHP version
I'm sorry I can't really help.
I wonder if it's an issue with Virtual Acorn Adjust 4.39?
In article <5c983d0262mec@npost.uk>,
Chris Newman <mec@npost.uk> wrote:
<Big snip>
I'm sending this again because when I tried 2 days ago I got a refusal message
Diagnostic-Code: smtp; Posting to this group is not allowed. Last-Attempt-Date: Wed, 07 Jan 2026 16:47:01 -0800 (PST)
Very odd. Weird thing happen when in Australia. I'll try sending from a different e-address.
IIRC mailing groups require the e-address you signed up with but news
groups don't care. (Or is it the other way round?)
------
Happy New Year to all from a 45 deg C Australia. Phew!
Thanks to all who replied.
Re-filetyping as fb1 didn't help.
I've solved the problem by converting them all to Armadeus files with SoundCon. Doesn't seem to have degraded the quality markedly.
I'll investigate on the R5 m/c when I get home. It may indeed be a R4.39 thing.
Presentations I've previously constructed on the R5 machine run happily
on the VA. I presume because the WAV audio files have already been successfully allied to the slide.
In message <5c98c42948cjazz@npost.uk>
Chris Newman <cjazz@npost.uk> wrote:
Hello 3 deg C France....
This can be a sample rates problem on Virtual Acorn Adjust 4.39
To test
REM Show the sample rates available from the sound system.
SYS "Sound_SampleRate",0 TO ,nrates
PRINT"Sound system has ";nrates;" sample rates available"
FOR index = 1 TO nrates
SYS "Sound_SampleRate",2,index TO ,,rate
PRINT"Index ";index;" rate ";rate / 1024;" Hz"
NEXT
Here a little utility from Jim Lesurf to get information on &FB1 files
https://jeanmichelb.riscos.fr/Audio/Download/ReadWavHeader.zip
(it's a desktop version,just drag and drop)
For information:
Prosound is able to load several formats (wav /AIF), edit them if
necessary and convert them. The application works well with a CM4 or
ARMX6.
As an aside, Prosound also recognizes certain ARMovie files (&AE7) https://jeanmichelb.riscos.fr/Audio/Download/ProSoundV202.zip
In article <3a84f0985c.jmb@jmc.bruck.orange.fr>,
Jean-Michel <jmc.bruck@orange.fr> wrote:
Hello 3 deg C France....
This can be a sample rates problem on Virtual Acorn Adjust 4.39
To test
REM Show the sample rates available from the sound system.
SYS "Sound_SampleRate",0 TO ,nrates
PRINT"Sound system has ";nrates;" sample rates available"
FOR index = 1 TO nrates
SYS "Sound_SampleRate",2,index TO ,,rate
PRINT"Index ";index;" rate ";rate / 1024;" Hz"
NEXT
Should that bit of code be put in an obey file? I'm a bit hazy on the technical side.
On 11 Jan 2026 as I do recall,
Should that bit of code be put in an obey file? I'm a bit hazy on the technical side.
It's a BASIC program.
Save it as a file of type BASIC (&FFB) and double-click the file to run
it.
Or save it into your root directory, open a taskwindow, and type
*Run <filename>
in order to get the results in a form that can be copied and pasted;
mine gives:
Sound system has 9 sample rates available
Index 1 rate 8000 Hz
Index 2 rate 11025 Hz
Index 3 rate 12000 Hz
Index 4 rate 16000 Hz
Index 5 rate 22050 Hz
Index 6 rate 24000 Hz
Index 7 rate 44100 Hz
Index 8 rate 48000 Hz
Index 9 rate 96000 Hz
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