If it is otherwise working fine, you might try hitting the Volume up and or mute buttons at the top of the number pad during the time it should be playing this chord to see if you might have accidentally muted it or turned it down. At least on some Mac versions such as the Mac Pro, Voiceover remembers different audio settings for the startup sequence than it does when it finishes starting up and you have your desktop.
If, for example, you had gotten the startup audio somehow routed to the bluetooth device, muted or turned all the way down, you might not hear anything at all until your desktop starts. One good thing is that it is almost surely a software configuration issue since it is consistent. I discovered this accidentally one day on a Mac Pro. This particular Mac has a tiny internal speaker that plays the startup music and any voiceover speech that occurs when the system has no users actually logged in. It was too faint to understand VO so I pressed the Volume Up key on the number pad with the idea of turning it back down when the speakers came on. The internal speaker got louder but this didn't change the main speaker volume when it finished booting and the desktop came on. The system remembers this new setting over reboots, power downs, etc so if one were to turn it all the way down, you would still have a working desktop with VO, but no startup music nor Voiceover when it wasn't you that was logged in. Basically, each mode of operation has its own sound profile that the Mac appears to store in some non-volatile way such as a file it always saves or maybe non-volatile memory, but it tries to remember how your sound and Voiceover were set even after an upgrade. So, when your Mac is booting or you were to log out of your session, a different sound profile rules until you are back in your desktop again. Martin Paul Hopewell writes: > Hello, > For some time my iMac has stopped playing the chord it used to play > shortly after being switched on. I had hoped that upgrading to Lion > 10.7.3 would fix this but alas not. Any ideas on how I can restore that > useful chord? > Many thanks. > > Paul Hopewell > > <--- Mac Access At Mac Access Dot Net ---> > > To reply to this post, please address your message to > mac-access@mac-access.net > > You can find an archive of all messages posted to the Mac-Access forum > at either the list's own dedicated web archive: > <http://mail.tft-bbs.co.uk/pipermail/mac-access/index.html> > or at the public Mail Archive: > <http://www.mail-archive.com/mac-access@mac-access.net/>. > Subscribe to the list's RSS feed from: > <http://www.mail-archive.com/mac-access@mac-access.net/maillist.xml> > > The Mac-Access mailing list is guaranteed malware, spyware, Trojan, virus > and worm-free! > > Please remember to update your membership options periodically by > visiting the list website at: > <http://mail.tft-bbs.co.uk/mailman/listinfo/mac-access/options/> > > <--- Mac Access At Mac Access Dot Net ---> To reply to this post, please address your message to mac-access@mac-access.net You can find an archive of all messages posted to the Mac-Access forum at either the list's own dedicated web archive: <http://mail.tft-bbs.co.uk/pipermail/mac-access/index.html> or at the public Mail Archive: <http://www.mail-archive.com/mac-access@mac-access.net/>. Subscribe to the list's RSS feed from: <http://www.mail-archive.com/mac-access@mac-access.net/maillist.xml> The Mac-Access mailing list is guaranteed malware, spyware, Trojan, virus and worm-free! Please remember to update your membership options periodically by visiting the list website at: <http://mail.tft-bbs.co.uk/mailman/listinfo/mac-access/options/>