Groups > comp.sys.acorn.apps > #19343

Re: M4A files

From	Brian Howlett <news-spamtrap@brianhowlett.me.uk>
Newsgroups	comp.sys.acorn.apps
Subject	Re: M4A files
Date	2025-03-17 22:05 +0000
Organization	The Home for the Bewildered
Message-ID	<aaa636ff5b.BrianNews@brianhowlett.me.uk> (permalink)
References	<0a10b4fe5b.BrianNews@brianhowlett.me.uk> <1424d5fe5b.harriet@bazleyfamily.co.uk> <18aad6fe5b.harriet@bazleyfamily.co.uk>

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On 17 Mar, Harriet Bazley <harriet@bazleyfamily.co.uk> wrote:

[snip]

>> Try changing the file type to MP4 (&A64)
>> https://stackoverflow.com/questions/9412384/m4a-mp4-file-format-whats-the-
>> difference-or-are-they-the-same

I've been able to play an M4A file with the filetype set to &A64, so 
thanks for that.

> Experimenting with the sample file at
> https://getsamplefiles.com/sample-audio-files/m4a suggests that !FFMpeg
> can recognise and convert M4A files to Wave format (although there were
> a lot of background clicks that might have been avoided if I had known
> how to use a more suitable conversion!)

The version of !FFMpeg I have here locks up my machine, or at least 
appears to - how long should the conversion of a file of about 250Mb take, 
do you know?

I've been searching the web for the latest version of !FFMpeg to no avail 
- it looks like a number of people have been working on it. The link to 
<http://www.users.on.net/~belles/software/ffmpeg/> in the StrongHelp 
manual for the version currently installed here isn't working.

There is a warning about Alignment Exceptions, but these are already 
turned off here.

Thanks for the help so far.
-- 
Brian Howlett - Email to From: address deleted unseen
-----------------------------------------------------
"Fish - visionary genius, or just a big haddie?"

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M4A files Brian Howlett <news-spamtrap@brianhowlett.me.uk> - 2025-03-16 22:19 +0000
  Re: M4A files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-03-17 04:20 +0000
    Re: M4A files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-03-17 04:37 +0000
      Re: M4A files Brian Howlett <news-spamtrap@brianhowlett.me.uk> - 2025-03-17 22:05 +0000
        Re: M4A files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-03-17 22:51 +0000
          Re: M4A files Brian Howlett <news-spamtrap@brianhowlett.me.uk> - 2025-03-20 23:28 +0000
            Re: M4A files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-03-21 15:56 +0000
  Re: M4A files "John Williams (News)" <UCEbin@tiscali.co.uk> - 2025-03-17 09:46 +0000
    Re: M4A files Doug Webb <doug.j.webb@btinternet.com> - 2025-03-16 13:07 +0000
      Re: M4A files Brian Howlett <news-spamtrap@brianhowlett.me.uk> - 2025-03-17 22:46 +0000
        Re: M4A files David Higton <dave@davehigton.me.uk> - 2025-03-18 16:58 +0000
          Re: M4A files Brian Howlett <news-spamtrap@brianhowlett.me.uk> - 2025-03-18 18:46 +0000
          Re: M4A files Jean-Michel <jmc.bruck@orange.fr> - 2025-03-19 10:59 +0100
    Re: M4A files Brian Howlett <news-spamtrap@brianhowlett.me.uk> - 2025-03-17 22:27 +0000
      Re: M4A files Martin <News03@avisoft.f9.co.uk> - 2025-03-17 23:29 +0000
        Re: M4A files "Richard Darby (news)" <news@rjdarby.co.uk> - 2025-03-21 20:24 +0000
          Re: M4A files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-03-21 22:05 +0000
            Re: M4A files Martin <News03@avisoft.f9.co.uk> - 2025-03-21 23:12 +0000
            Re: M4A files "John Williams (News)" <UCEbin@tiscali.co.uk> - 2025-03-22 07:03 +0000
              Re: M4A files "John Williams (News)" <UCEbin@tiscali.co.uk> - 2025-03-22 07:37 +0000
              Re: M4A files "John Williams (News)" <UCEbin@tiscali.co.uk> - 2025-03-22 07:43 +0000
          Re: M4A files Martin <News03@avisoft.f9.co.uk> - 2025-03-21 23:05 +0000
          Re: M4A files Brian Howlett <news-spamtrap@brianhowlett.me.uk> - 2025-03-22 00:26 +0000
          Re: M4A files Chris Newman <newslists@npost.uk> - 2025-04-04 20:04 +0100
            Re: M4A files "John Williams (News)" <UCEbin@tiscali.co.uk> - 2025-04-05 09:14 +0100
              Re: M4A files Chris Newman <newslists@npost.uk> - 2025-04-05 11:57 +0100
  Re: M4A files "Richard Torrens (News)" <News+20164@Torrens.org> - 2025-03-17 14:53 +0000
    Re: M4A files Brian Howlett <news-spamtrap@brianhowlett.me.uk> - 2025-03-18 18:31 +0000

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