I've had a new Android phone (Samsung Galaxy A54, Android 13) for
several months and it has just started making a short trumpet sound
occasionally - several times a day, not at the same times each day.

It is not associated with a notification that is displayed on the lock
screen, and there is no additional icon in the toolbar at the top of the
screen. In other words, there is nothing that is obviously associated
with the sound.

It is not the sound of a new email or text message arriving, because
those are listed in the Notifications list on the lock screen and the
sounds that they make are not the trumpet sound.

Before I go through disabling one by one the apps that are allowed to
send notifications, can anyone think of something else I should check?

It happens when the phone has plenty of battery left and when it has
good wifi and mobile reception.

I have a Garmin Venu watch paired with the phone, but nothing displays
on the watch at this time, and it's not a notification to say that I
have just lost/regained comms with the watch. The *watch* notifies me of
these events, but I've never heard the phone do so. And anyway, the
watch uses a different notification sound, and it's been paired with the
phone for several months before the trumpet sound began.

I've gone through the list of ringtones and notification sounds that are
available, and it's not any of them.

What other apps are there on a phone which can make brief alert sounds
without leaving any visible trace (notification message, icon on top
icon bar)

It's something that has started happening in the last few days, and I'm
not aware that I've changed anything.

On 27.7.23 5:51 pm, NY wrote:
> I've had a new Android phone (Samsung Galaxy A54, Android 13) for
> several months and it has just started making a short trumpet sound
> occasionally - several times a day, not at the same times each day.
>
> It is not associated with a notification that is displayed on the lock
> screen, and there is no additional icon in the toolbar at the top of the
> screen. In other words, there is nothing that is obviously associated
> with the sound.
>
> It is not the sound of a new email or text message arriving, because
> those are listed in the Notifications list on the lock screen and the
> sounds that they make are not the trumpet sound.
>
> Before I go through disabling one by one the apps that are allowed to
> send notifications, can anyone think of something else I should check?
>
> It happens when the phone has plenty of battery left and when it has
> good wifi and mobile reception.
>
> I have a Garmin Venu watch paired with the phone, but nothing displays
> on the watch at this time, and it's not a notification to say that I
> have just lost/regained comms with the watch. The *watch* notifies me of
> these events, but I've never heard the phone do so. And anyway, the
> watch uses a different notification sound, and it's been paired with the
> phone for several months before the trumpet sound began.
>
> I've gone through the list of ringtones and notification sounds that are
> available, and it's not any of them.
>
> What other apps are there on a phone which can make brief alert sounds
> without leaving any visible trace (notification message, icon on top
> icon bar)
>
>
> It's something that has started happening in the last few days, and I'm
> not aware that I've changed anything.

I had a similar mystery sound which turned out (I think) to be a tone
issued when my broadband line dropped out and WiFi contact with the
router was lost. BT are my ISP and I suppose they could be generating a
tone on reconnection somehow. That particular sound file is not on my
phone as far I could see - I had a good search round the files - so I
figured it was generated at the BT/EE end or by the BT WiFi app.
However, I don't think the app was running at the time, so it would
have had to be pushed to the app whilst it was idle. Were you getting
sporadic disconnections at the time?

--
Tetbury, Gloucestershire , UK

Licentiae, quam stulti libertatem vocabant - Tacitus

Am 27.07.23 um 18:51 schrieb NY:
> I've had a new Android phone (Samsung Galaxy A54, Android 13) for
> several months and it has just started making a short trumpet sound
> occasionally - several times a day, not at the same times each day.

What new apps did you install during this period?

--
Alea iacta est

On 27/07/2023 20:33, Jörg Lorenz wrote:
> Am 27.07.23 um 18:51 schrieb NY:
>> I've had a new Android phone (Samsung Galaxy A54, Android 13) for
>> several months and it has just started making a short trumpet sound
>> occasionally - several times a day, not at the same times each day.
>
> What new apps did you install during this period?

As far as I can remember, I haven't installed any new apps. There have
been routine updates to existing apps, but I can't remember any details
of those.

On 27/07/2023 18:42, Bob Henson wrote:
> On 27.7.23 5:51 pm, NY wrote:
>> I've had a new Android phone (Samsung Galaxy A54, Android 13) for
>> several months and it has just started making a short trumpet sound
>> occasionally - several times a day, not at the same times each day.
>>
>> It is not associated with a notification that is displayed on the lock
>> screen, and there is no additional icon in the toolbar at the top of the
>> screen. In other words, there is nothing that is obviously associated
>> with the sound.
>>
> I had a similar mystery sound which turned out (I think) to be a tone
> issued when my broadband line dropped out and WiFi contact with the
> router was lost. BT are my ISP and I suppose they could be generating a
> tone on reconnection somehow. That particular sound file is not on my
> phone as far I could see - I had a good search round the files - so I
> figured it was generated at the BT/EE end or by the BT WiFi app.
> However, I don't think  the app was running at the time, so it would
> have had to be pushed to the app whilst it was idle. Were you getting
> sporadic disconnections at the time?

No I wasn't. As far as I am aware, my internet connection has been rock
solid, both the WAN (FTTC/VDSL) connection and the wifi connection from
phone to router. However I suppose it is possible that the phone may
have failed over to its mobile internet connection if there was a brief
wifi outage (unless I'm trying to access a device on my LAN, I wouldn't
notice). I'll try turning off mobile internet so a loss of wifi is very
obvious.