• Mobile 'phone sound quality

    From liz@liz@poppyrecords.invalid.invalid (Liz Tuddenham) to sci.electronics.design on Sun Aug 9 14:42:48 2026
    From Newsgroup: sci.electronics.design

    The sound quality on my mobile 'phone was so atrocious that it was
    impossible to hold a normal conversation. I was continually requesting
    repeats and sometimes couldn't identify certain words even when the
    person tried spelling them with the international phonetic alphabet.
    The main problem was caused by the sound cutting in and out, so that
    only parts of words were audible.

    This occurred regardless of the location or the type of 'phone being
    used by the other party, so it was apparent that the cause of the
    problem was in my own 'phone.

    The clue came when one caller lost his temper and shouted "Can you hear
    me now!!!" ...which came through quite clearly. As soon as he dropped
    his voice to a normal conversational level, the sound again degenerated
    into occasional chopped up syllables and long silences.

    It reminded me of faulty Class B bias in a push-pull audio output stage,
    so I tried increasing the audio gain. This overcame the effect
    sufficiently that most of the conversation got through without
    noticeable 'chopping'. It was as if they had included a noise gate
    *after* the volume control.

    The 'phone has the facility for hands-free operation, which would need
    some sort of complex noise-gating, but this was switched off. I can
    only presume the programming is faulty and it was still in use - and at
    the wrong point in the audio chain.
    --
    ~ Liz Tuddenham ~
    (Remove the ".invalid"s and add ".co.uk" to reply)
    www.poppyrecords.co.uk
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Martin Brown@'''newspam'''@nonad.co.uk to sci.electronics.design on Sun Aug 9 15:47:23 2026
    From Newsgroup: sci.electronics.design

    On 09/08/2026 14:42, Liz Tuddenham wrote:
    The sound quality on my mobile 'phone was so atrocious that it was
    impossible to hold a normal conversation. I was continually requesting repeats and sometimes couldn't identify certain words even when the
    person tried spelling them with the international phonetic alphabet.
    The main problem was caused by the sound cutting in and out, so that
    only parts of words were audible.

    This occurred regardless of the location or the type of 'phone being
    used by the other party, so it was apparent that the cause of the
    problem was in my own 'phone.

    How much mobile signal do you have? I'm guessing one bar or less.

    This sort of breakup is common in rural areas with low to non-existent
    mobile signal. Only Vodafone works adequately in my neck of the woods.
    If your phone is modern enough enable Wifi calling and then when you are
    home at least the thing will have enough backhaul to work correctly.

    The clue came when one caller lost his temper and shouted "Can you hear
    me now!!!" ...which came through quite clearly. As soon as he dropped
    his voice to a normal conversational level, the sound again degenerated
    into occasional chopped up syllables and long silences.

    It can be asymmetric too so that you sound normal to them since your
    phone will increase its transmit power to maximum to reach the base
    station but the base station AFAIK doesn't beam steer to you. It does
    nothing for battery life if you are on the fringes of reception.

    It reminded me of faulty Class B bias in a push-pull audio output stage,
    so I tried increasing the audio gain. This overcame the effect
    sufficiently that most of the conversation got through without
    noticeable 'chopping'. It was as if they had included a noise gate
    *after* the volume control.

    The 'phone has the facility for hands-free operation, which would need
    some sort of complex noise-gating, but this was switched off. I can
    only presume the programming is faulty and it was still in use - and at
    the wrong point in the audio chain.

    That seems unlikely. What brand, model and age is the phone?

    There may be a known problem in the odd one for which a firmware upgrade
    will have been issued. I have first hand experience of this problem
    since I live in a non spot and have spent some time trying to sort out
    other peoples problems with mobile phones in near impossible conditions.

    One of the characteristics is that the support line annoying music
    breaks up into WWI bombardments or dead silence for quiet bits whilst
    you are waiting to talk to support staff. The algorithms are trying to
    do their best to make use of what little bandwidth is available.

    Everything has to be repeated and or spelt out phonetically. Lucky I
    know the Nato standard alphabet codes.
    --
    Martin Brown

    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From John R Walliker@jrwalliker@gmail.com to sci.electronics.design on Sun Aug 9 16:36:09 2026
    From Newsgroup: sci.electronics.design

    On 09/08/2026 15:47, Martin Brown wrote:
    On 09/08/2026 14:42, Liz Tuddenham wrote:
    The sound quality on my mobile 'phone was so atrocious that it was
    impossible to hold a normal conversation.-a I was continually requesting
    repeats and sometimes couldn't identify certain words even when the
    person tried spelling them with the international phonetic alphabet.
    The main problem was caused by the sound cutting in and out, so that
    only parts of words were audible.

    This occurred regardless of the location or the type of 'phone being
    used by the other party, so it was apparent that the cause of the
    problem was in my own 'phone.

    How much mobile signal do you have? I'm guessing one bar or less.

    This sort of breakup is common in rural areas with low to non-existent mobile signal. Only Vodafone works adequately in my neck of the woods.
    If your phone is modern enough enable Wifi calling and then when you are home at least the thing will have enough backhaul to work correctly.

    The clue came when one caller lost his temper and shouted "Can you hear
    me now!!!"-a ...which came through quite clearly.-a As soon as he dropped
    his voice to a normal conversational level, the sound again degenerated
    into occasional chopped up syllables and long silences.

    It can be asymmetric too so that you sound normal to them since your
    phone will increase its transmit power to maximum to reach the base
    station but the base station AFAIK doesn't beam steer to you. It does nothing for battery life if you are on the fringes of reception.

    It reminded me of faulty Class B bias in a push-pull audio output stage,
    so I tried increasing the audio gain.-a This overcame the effect
    sufficiently that most of the conversation got through without
    noticeable 'chopping'.-a It was as if they had included a noise gate
    *after* the volume control.

    The 'phone has the facility for hands-free operation, which would need
    some sort of complex noise-gating, but this was switched off.-a I can
    only presume the programming is faulty and it was still in use - and at
    the wrong point in the audio chain.

    That seems unlikely. What brand, model and age is the phone?

    There may be a known problem in the odd one for which a firmware upgrade will have been issued. I have first hand experience of this problem
    since I live in a non spot and have spent some time trying to sort out
    other peoples problems with mobile phones in near impossible conditions.

    One of the characteristics is that the support line annoying music
    breaks up into WWI bombardments or dead silence for quiet bits whilst
    you are waiting to talk to support staff. The algorithms are trying to
    do their best to make use of what little bandwidth is available.

    Everything has to be repeated and or spelt out phonetically. Lucky I
    know the Nato standard alphabet codes.


    Sometimes when the signal is poor the connection will switch to
    half-duplex mode. If there is a lot of background noise at one
    end of the link this can block much of the sound in the other
    direction. Background noise can be subsonic and not audible at
    the other end of the link.
    There are echo cancelers, noise suppressors and AGC in the phones and in various parts of the network. These can be misconfigured which
    makes a real mess of the audio. Sometimes they interact with each
    other in unexpected ways. Compression levels vary according to
    network conditions.
    John

    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From liz@liz@poppyrecords.invalid.invalid (Liz Tuddenham) to sci.electronics.design on Sun Aug 9 17:02:13 2026
    From Newsgroup: sci.electronics.design

    Martin Brown <'''newspam'''@nonad.co.uk> wrote:

    On 09/08/2026 14:42, Liz Tuddenham wrote:
    The sound quality on my mobile 'phone was so atrocious that it was impossible to hold a normal conversation. I was continually requesting repeats and sometimes couldn't identify certain words even when the
    person tried spelling them with the international phonetic alphabet.
    The main problem was caused by the sound cutting in and out, so that
    only parts of words were audible.

    This occurred regardless of the location or the type of 'phone being
    used by the other party, so it was apparent that the cause of the
    problem was in my own 'phone.

    How much mobile signal do you have? I'm guessing one bar or less.

    No, it was happening to every call, no matter where I was located. The
    tests with louder volume settings were done from exactly the same
    location.

    [...]
    The 'phone has the facility for hands-free operation, which would need
    some sort of complex noise-gating, but this was switched off. I can
    only presume the programming is faulty and it was still in use - and at
    the wrong point in the audio chain.

    That seems unlikely. What brand, model and age is the phone?

    TCL Onetouch: Build 07-09-2025. Purchased just over a month ago.

    [...]
    Everything has to be repeated and or spelt out phonetically. Lucky I
    know the Nato standard alphabet codes.

    When I took my Radio Amateurs' Exam the NATO phonetic alphabet was part
    of the syllabus.
    --
    ~ Liz Tuddenham ~
    (Remove the ".invalid"s and add ".co.uk" to reply)
    www.poppyrecords.co.uk
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Jeff Liebermann@jeffl@cruzio.com to sci.electronics.design on Sun Aug 9 10:24:39 2026
    From Newsgroup: sci.electronics.design

    On Sun, 9 Aug 2026 17:02:13 +0100, liz@poppyrecords.invalid.invalid
    (Liz Tuddenham) wrote:

    TCL Onetouch: Build 07-09-2025. Purchased just over a month ago.

    Which model number?
    <https://www.tcl.com/my/en/feature-phones>

    Or is it one of these TCL phones?
    <https://www.gsmarena.com/tcl-phones-123.php>

    Also, what type of service does your phone use? (LTE, GSM, HSPA or
    something else)?

    If it's a smartphone, with an LCD display that requires a screen
    protector, I have a guess(tm). Speaker and microphone slots are
    located between the edge of the screen and the frame. If the screen
    protector doesn't quite fit, or is installed at an angle, the slots
    might become blocked. The speaker slot includes a grill of tiny
    holes, which tend to become clogged.

    The "sound cutting in and out" can be anything from a loose speaker
    connection to signal strength problems.

    Make sure you have the speakerphone function turned off. Talking too
    loud into the microphone effectively mutes the loudspeaker audio.

    Some phones switch to half-duplex if the signal strength is low. That
    produce "flutter" type effects similar to a moving weak signal.
    --
    Jeff Liebermann jeffl@cruzio.com
    PO Box 272 http://www.LearnByDestroying.com
    Ben Lomond CA 95005-0272 AE6KS 831-336-2558

    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From liz@liz@poppyrecords.invalid.invalid (Liz Tuddenham) to sci.electronics.design on Sun Aug 9 20:48:48 2026
    From Newsgroup: sci.electronics.design

    Jeff Liebermann <jeffl@cruzio.com> wrote:

    On Sun, 9 Aug 2026 17:02:13 +0100, liz@poppyrecords.invalid.invalid
    (Liz Tuddenham) wrote:

    TCL Onetouch: Build 07-09-2025. Purchased just over a month ago.

    Which model number?

    TCL T312D

    Also, what type of service does your phone use? (LTE, GSM, HSPA or
    something else)?

    No idea. It is sold as 4G compatible. and my service is from O2.


    If it's a smartphone, with an LCD display...

    No, it isn't 'smart'.
    --
    ~ Liz Tuddenham ~
    (Remove the ".invalid"s and add ".co.uk" to reply)
    www.poppyrecords.co.uk
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Sun Aug 9 13:04:26 2026
    From Newsgroup: sci.electronics.design

    On 8/9/2026 7:47 AM, Martin Brown wrote:
    One of the characteristics is that the support line annoying music breaks up into WWI bombardments or dead silence for quiet bits whilst you are waiting to
    talk to support staff. The algorithms are trying to do their best to make use
    of what little bandwidth is available.

    I've found that the phone responds to the slightest LOCAL sound and uses
    that to squelch the incoming sound. Similarly, the "leading edges" of
    sounds tend to get clipped as it is late to recognize content.

    Everything has to be repeated and or spelt out phonetically. Lucky I know the
    Nato standard alphabet codes.

    I prefer to use more commonly encountered words -- how many people have ever heard of a "Zulu"? Contrast that with "Zebra". David vs Delta. Kathy/Karen vs Kilo. Edward vs Echo. Sally vs Sierra.

    They're words that more "commonfolk" are familiar with and, thus, likely
    to recognize (spoken and transcribed to text in their minds)

    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Carlos E.R.@robin_listas@es.invalid to sci.electronics.design on Sun Aug 9 22:49:15 2026
    From Newsgroup: sci.electronics.design

    On 2026-08-09 22:04, Don Y wrote:
    On 8/9/2026 7:47 AM, Martin Brown wrote:
    One of the characteristics is that the support line annoying music
    breaks up into WWI bombardments or dead silence for quiet bits whilst
    you are waiting to talk to support staff. The algorithms are trying to
    do their best to make use of what little bandwidth is available.

    I've found that the phone responds to the slightest LOCAL sound and uses
    that to squelch the incoming sound.-a Similarly, the "leading edges" of sounds tend to get clipped as it is late to recognize content.

    Everything has to be repeated and or spelt out phonetically. Lucky I
    know the Nato standard alphabet codes.

    I prefer to use more commonly encountered words -- how many people have
    ever
    heard of a "Zulu"?-a Contrast that with "Zebra".-a David vs Delta.-a Kathy/ Karen
    vs Kilo.-a Edward vs Echo.-a Sally vs Sierra.

    They're words that more "commonfolk" are familiar with and, thus, likely
    to recognize (spoken and transcribed to text in their minds)


    The aviation/HAM/whatever spelling code was selected so that it uses
    words with no likelihood of mistaken spelling. Even for people with
    different first language than English.

    Example: Is it Zebra or Cebra?
    --
    Cheers, Carlos.
    ESEfc-Efc+, EUEfc-Efc|;
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Sun Aug 9 13:55:31 2026
    From Newsgroup: sci.electronics.design

    On 8/9/2026 1:49 PM, Carlos E.R. wrote:
    On 2026-08-09 22:04, Don Y wrote:
    On 8/9/2026 7:47 AM, Martin Brown wrote:
    One of the characteristics is that the support line annoying music breaks up
    into WWI bombardments or dead silence for quiet bits whilst you are waiting
    to talk to support staff. The algorithms are trying to do their best to make
    use of what little bandwidth is available.

    I've found that the phone responds to the slightest LOCAL sound and uses
    that to squelch the incoming sound.-a Similarly, the "leading edges" of
    sounds tend to get clipped as it is late to recognize content.

    Everything has to be repeated and or spelt out phonetically. Lucky I know >>> the Nato standard alphabet codes.

    I prefer to use more commonly encountered words -- how many people have ever >> heard of a "Zulu"?-a Contrast that with "Zebra".-a David vs Delta.-a Kathy/ Karen
    vs Kilo.-a Edward vs Echo.-a Sally vs Sierra.

    They're words that more "commonfolk" are familiar with and, thus, likely
    to recognize (spoken and transcribed to text in their minds)


    The aviation/HAM/whatever spelling code was selected so that it uses words with
    no likelihood of mistaken spelling. Even for people with different first language than English.

    Example: Is it Zebra or Cebra?

    Is it Phrank or Frank?

    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Carlos E.R.@robin_listas@es.invalid to sci.electronics.design on Sun Aug 9 23:15:33 2026
    From Newsgroup: sci.electronics.design

    On 2026-08-09 22:55, Don Y wrote:
    On 8/9/2026 1:49 PM, Carlos E.R. wrote:
    On 2026-08-09 22:04, Don Y wrote:
    On 8/9/2026 7:47 AM, Martin Brown wrote:
    One of the characteristics is that the support line annoying music
    breaks up into WWI bombardments or dead silence for quiet bits
    whilst you are waiting to talk to support staff. The algorithms are
    trying to do their best to make use of what little bandwidth is
    available.

    I've found that the phone responds to the slightest LOCAL sound and uses >>> that to squelch the incoming sound.-a Similarly, the "leading edges" of
    sounds tend to get clipped as it is late to recognize content.

    Everything has to be repeated and or spelt out phonetically. Lucky I
    know the Nato standard alphabet codes.

    I prefer to use more commonly encountered words -- how many people
    have ever
    heard of a "Zulu"?-a Contrast that with "Zebra".-a David vs Delta.
    Kathy/ Karen
    vs Kilo.-a Edward vs Echo.-a Sally vs Sierra.

    They're words that more "commonfolk" are familiar with and, thus, likely >>> to recognize (spoken and transcribed to text in their minds)


    The aviation/HAM/whatever spelling code was selected so that it uses
    words with no likelihood of mistaken spelling. Even for people with
    different first language than English.

    Example: Is it Zebra or Cebra?

    Is it Phrank or Frank?


    :-)

    I've never heard of "Phrank", though.
    --
    Cheers, Carlos.
    ESEfc-Efc+, EUEfc-Efc|;
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Sun Aug 9 14:50:24 2026
    From Newsgroup: sci.electronics.design

    On 8/9/2026 2:15 PM, Carlos E.R. wrote:
    On 2026-08-09 22:55, Don Y wrote:
    On 8/9/2026 1:49 PM, Carlos E.R. wrote:
    On 2026-08-09 22:04, Don Y wrote:
    On 8/9/2026 7:47 AM, Martin Brown wrote:
    One of the characteristics is that the support line annoying music breaks
    up into WWI bombardments or dead silence for quiet bits whilst you are >>>>> waiting to talk to support staff. The algorithms are trying to do their >>>>> best to make use of what little bandwidth is available.

    I've found that the phone responds to the slightest LOCAL sound and uses >>>> that to squelch the incoming sound.-a Similarly, the "leading edges" of >>>> sounds tend to get clipped as it is late to recognize content.

    Everything has to be repeated and or spelt out phonetically. Lucky I know
    the Nato standard alphabet codes.

    I prefer to use more commonly encountered words -- how many people have ever
    heard of a "Zulu"?-a Contrast that with "Zebra".-a David vs Delta. Kathy/ Karen
    vs Kilo.-a Edward vs Echo.-a Sally vs Sierra.

    They're words that more "commonfolk" are familiar with and, thus, likely >>>> to recognize (spoken and transcribed to text in their minds)


    The aviation/HAM/whatever spelling code was selected so that it uses words >>> with no likelihood of mistaken spelling. Even for people with different >>> first language than English.

    Example: Is it Zebra or Cebra?

    Is it Phrank or Frank?


    :-)

    I've never heard of "Phrank", though.
    [We used to always order pizza for "Phred -- with a P"]

    You have to gear your vocabulary to your audience.

    The folks using the "phonetic alphabet" likely are accustomed to hearing
    those names. But, folks who are NOT accustomed to it, hear them as
    unfamiliar words; my grandmother would likely say (in a thick accent):
    "Who sooloo?" because "Zulu" wouldn't have been anything she'd ever heard prior.
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Jeff Liebermann@jeffl@cruzio.com to sci.electronics.design on Sun Aug 9 18:17:04 2026
    From Newsgroup: sci.electronics.design

    On Sun, 9 Aug 2026 13:55:31 -0700, Don Y <blockedofcourse@foo.invalid>
    wrote:

    On 8/9/2026 1:49 PM, Carlos E.R. wrote:
    On 2026-08-09 22:04, Don Y wrote:
    On 8/9/2026 7:47 AM, Martin Brown wrote:
    One of the characteristics is that the support line annoying music breaks up
    into WWI bombardments or dead silence for quiet bits whilst you are waiting
    to talk to support staff. The algorithms are trying to do their best to make
    use of what little bandwidth is available.

    I've found that the phone responds to the slightest LOCAL sound and uses >>> that to squelch the incoming sound.a Similarly, the "leading edges" of
    sounds tend to get clipped as it is late to recognize content.

    Everything has to be repeated and or spelt out phonetically. Lucky I know >>>> the Nato standard alphabet codes.

    I prefer to use more commonly encountered words -- how many people have ever
    heard of a "Zulu"?a Contrast that with "Zebra".a David vs Delta.a Kathy/ Karen
    vs Kilo.a Edward vs Echo.a Sally vs Sierra.

    They're words that more "commonfolk" are familiar with and, thus, likely >>> to recognize (spoken and transcribed to text in their minds)


    The aviation/HAM/whatever spelling code was selected so that it uses words with
    no likelihood of mistaken spelling. Even for people with different first
    language than English.

    Example: Is it Zebra or Cebra?

    Is it Phrank or Frank?

    Neither. F = Foxtrot and P = Papa
    The phonetic alphabet was designed so the "pronunciation" is unique or
    at least audibly different. Spelling is not a major concern: <https://en.wikipedia.org/wiki/NATO_phonetic_alphabet>

    Note that in ham radio, there are several variations and mutations
    intended to accommodate foreign language DX users: <https://www.hamradioschool.com/articles/phonetic-alphabets.html>

    For my ham call sign (AE6KS), I sometimes use "Alpha Echo Six Kant
    Spell". The correct response is usually a short delay followed by a
    groan. Without creativity, there is little progress.
    --
    Jeff Liebermann jeffl@cruzio.com
    PO Box 272 http://www.LearnByDestroying.com
    Ben Lomond CA 95005-0272 AE6KS 831-336-2558

    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Carlos E.R.@robin_listas@es.invalid to sci.electronics.design on Mon Aug 10 11:33:55 2026
    From Newsgroup: sci.electronics.design

    On 2026-08-09 23:50, Don Y wrote:
    On 8/9/2026 2:15 PM, Carlos E.R. wrote:
    On 2026-08-09 22:55, Don Y wrote:
    On 8/9/2026 1:49 PM, Carlos E.R. wrote:
    On 2026-08-09 22:04, Don Y wrote:
    On 8/9/2026 7:47 AM, Martin Brown wrote:
    One of the characteristics is that the support line annoying music >>>>>> breaks up into WWI bombardments or dead silence for quiet bits
    whilst you are waiting to talk to support staff. The algorithms
    are trying to do their best to make use of what little bandwidth
    is available.

    I've found that the phone responds to the slightest LOCAL
    sound and uses that to squelch the incoming sound.
    Similarly, the "leading edges" of sounds tend to get clipped
    as it is late to recognize content.

    Everything has to be repeated and or spelt out
    phonetically. Lucky I know the Nato standard alphabet
    codes.

    I prefer to use more commonly encountered words -- how many
    people have ever heard of a "Zulu"? Contrast that with
    "Zebra". David vs Delta. Kathy/ Karen vs Kilo. Edward vs
    Echo. Sally vs Sierra.

    They're words that more "commonfolk" are familiar with and,
    thus, likely to recognize (spoken and transcribed to text in
    their minds)

    The aviation/HAM/whatever spelling code was selected so that it uses
    words with no likelihood of mistaken spelling. Even for people with
    different first language than English.

    Example: Is it Zebra or Cebra?

    Is it Phrank or Frank?


    :-)

    I've never heard of "Phrank", though.
    [We used to always order pizza for "Phred -- with a P"]

    You have to gear your vocabulary to your audience.

    The folks using the "phonetic alphabet" likely are accustomed to hearing those names.-a But, folks who are NOT accustomed to it, hear them as unfamiliar words; my grandmother would likely say (in a thick accent):
    "Who sooloo?" because "Zulu" wouldn't have been anything she'd ever heard prior.

    That's true, we learned it.

    Curio: being Spanish, I do not know the word for '|#'. I just asked
    ChatGPT, who says there is not an official one. It suggests rCL|a de |aurCY.
    --
    Cheers, Carlos.
    ESEfc-Efc+, EUEfc-Efc|;
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Carlos E.R.@robin_listas@es.invalid to sci.electronics.design on Mon Aug 10 11:36:08 2026
    From Newsgroup: sci.electronics.design

    On 2026-08-10 03:17, Jeff Liebermann wrote:
    On Sun, 9 Aug 2026 13:55:31 -0700, Don Y <blockedofcourse@foo.invalid>
    wrote:

    On 8/9/2026 1:49 PM, Carlos E.R. wrote:
    On 2026-08-09 22:04, Don Y wrote:
    On 8/9/2026 7:47 AM, Martin Brown wrote:
    One of the characteristics is that the support line annoying music breaks up
    into WWI bombardments or dead silence for quiet bits whilst you are waiting
    to talk to support staff. The algorithms are trying to do their best to make
    use of what little bandwidth is available.

    I've found that the phone responds to the slightest LOCAL sound and uses >>>> that to squelch the incoming sound.-a Similarly, the "leading edges" of >>>> sounds tend to get clipped as it is late to recognize content.

    Everything has to be repeated and or spelt out phonetically. Lucky I know >>>>> the Nato standard alphabet codes.

    I prefer to use more commonly encountered words -- how many people have ever
    heard of a "Zulu"?-a Contrast that with "Zebra".-a David vs Delta.-a Kathy/ Karen
    vs Kilo.-a Edward vs Echo.-a Sally vs Sierra.

    They're words that more "commonfolk" are familiar with and, thus, likely >>>> to recognize (spoken and transcribed to text in their minds)


    The aviation/HAM/whatever spelling code was selected so that it uses words with
    no likelihood of mistaken spelling. Even for people with different first >>> language than English.

    Example: Is it Zebra or Cebra?

    Is it Phrank or Frank?

    Neither. F = Foxtrot and P = Papa

    Good catch.

    The phonetic alphabet was designed so the "pronunciation" is unique or
    at least audibly different. Spelling is not a major concern: <https://en.wikipedia.org/wiki/NATO_phonetic_alphabet>

    Note that in ham radio, there are several variations and mutations
    intended to accommodate foreign language DX users: <https://www.hamradioschool.com/articles/phonetic-alphabets.html>

    For my ham call sign (AE6KS), I sometimes use "Alpha Echo Six Kant
    Spell". The correct response is usually a short delay followed by a
    groan. Without creativity, there is little progress.


    :-)
    --
    Cheers, Carlos.
    ESEfc-Efc+, EUEfc-Efc|;
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Martin Brown@'''newspam'''@nonad.co.uk to sci.electronics.design on Mon Aug 10 10:44:49 2026
    From Newsgroup: sci.electronics.design

    On 09/08/2026 17:02, Liz Tuddenham wrote:
    Martin Brown <'''newspam'''@nonad.co.uk> wrote:

    On 09/08/2026 14:42, Liz Tuddenham wrote:
    The sound quality on my mobile 'phone was so atrocious that it was
    impossible to hold a normal conversation. I was continually requesting
    repeats and sometimes couldn't identify certain words even when the
    person tried spelling them with the international phonetic alphabet.
    The main problem was caused by the sound cutting in and out, so that
    only parts of words were audible.

    This occurred regardless of the location or the type of 'phone being
    used by the other party, so it was apparent that the cause of the
    problem was in my own 'phone.

    How much mobile signal do you have? I'm guessing one bar or less.

    No, it was happening to every call, no matter where I was located. The
    tests with louder volume settings were done from exactly the same
    location.

    [...]
    The 'phone has the facility for hands-free operation, which would need
    some sort of complex noise-gating, but this was switched off. I can
    only presume the programming is faulty and it was still in use - and at
    the wrong point in the audio chain.

    That seems unlikely. What brand, model and age is the phone?

    TCL Onetouch: Build 07-09-2025. Purchased just over a month ago.

    Test it under good signal conditions just to be certain it is at fault
    and if it still misbehaves reject it as defective goods.

    A decent mobile phone should be crystal clear if it is working correctly
    and there is enough backhaul to support it.
    --
    Martin Brown

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  • From Martin Brown@'''newspam'''@nonad.co.uk to sci.electronics.design on Mon Aug 10 10:59:39 2026
    From Newsgroup: sci.electronics.design

    On 09/08/2026 17:02, Liz Tuddenham wrote:
    Martin Brown <'''newspam'''@nonad.co.uk> wrote:

    On 09/08/2026 14:42, Liz Tuddenham wrote:
    The sound quality on my mobile 'phone was so atrocious that it was
    impossible to hold a normal conversation. I was continually requesting
    repeats and sometimes couldn't identify certain words even when the
    person tried spelling them with the international phonetic alphabet.
    The main problem was caused by the sound cutting in and out, so that
    only parts of words were audible.

    This occurred regardless of the location or the type of 'phone being
    used by the other party, so it was apparent that the cause of the
    problem was in my own 'phone.

    How much mobile signal do you have? I'm guessing one bar or less.

    No, it was happening to every call, no matter where I was located. The
    tests with louder volume settings were done from exactly the same
    location.

    Have you tried it in hands free mode? It might work OK then.

    I have never seen a mobile phone that misbehaved like you describe
    except when the mobile signal level was borderline non-existent.

    Best bet is buy a cheap secondhand smart phone from the likes of Cex.
    The one you have right now sounds like it is WEEE scrap.
    --
    Martin Brown

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  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Mon Aug 10 05:58:04 2026
    From Newsgroup: sci.electronics.design

    On 8/10/2026 2:33 AM, Carlos E.R. wrote:
    I've never heard of "Phrank", though.
    [We used to always order pizza for "Phred -- with a P"]

    You have to gear your vocabulary to your audience.

    The folks using the "phonetic alphabet" likely are accustomed to hearing
    those names.-a But, folks who are NOT accustomed to it, hear them as
    unfamiliar words; my grandmother would likely say (in a thick accent):
    "Who sooloo?" because "Zulu" wouldn't have been anything she'd ever heard
    prior.

    That's true, we learned it.

    Curio: being Spanish, I do not know the word for '|#'. I just asked ChatGPT, who
    says there is not an official one. It suggests rCL|a de |aurCY.

    Most would call it "N with a tilde", having an "ny" sound like in "canyon".
    It is technically called "e|#e".

    [I've designed text-to-speech algorithms so have had to familiarize myself
    with a lot of this trivia -- like c with cedilla, etc. The accented glyph carrying additional pronunciation information. This wasn't a problem
    when everything was strictly ASCII! <frown>]

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  • From Lasse Langwadt@llc@fonz.dk to sci.electronics.design on Mon Aug 10 17:42:29 2026
    From Newsgroup: sci.electronics.design

    On 8/10/26 11:44, Martin Brown wrote:
    On 09/08/2026 17:02, Liz Tuddenham wrote:
    Martin Brown <'''newspam'''@nonad.co.uk> wrote:

    On 09/08/2026 14:42, Liz Tuddenham wrote:
    The sound quality on my mobile 'phone was so atrocious that it was
    impossible to hold a normal conversation.-a I was continually requesting >>>> repeats and sometimes couldn't identify certain words even when the
    person tried spelling them with the international phonetic alphabet.
    The main problem was caused by the sound cutting in and out, so that
    only parts of words were audible.

    This occurred regardless of the location or the type of 'phone being
    used by the other party, so it was apparent that the cause of the
    problem was in my own 'phone.

    How much mobile signal do you have? I'm guessing one bar or less.

    No, it was happening to every call, no matter where I was located.-a The
    tests with louder volume settings were done from exactly the same
    location.

    [...]
    The 'phone has the facility for hands-free operation, which would need >>>> some sort of complex noise-gating, but this was switched off.-a I can
    only presume the programming is faulty and it was still in use - and at >>>> the wrong point in the audio chain.

    That seems unlikely. What brand, model and age is the phone?

    TCL Onetouch: Build 07-09-2025.-a Purchased just over a month ago.

    Test it under good signal conditions just to be certain it is at fault
    and if it still misbehaves reject it as defective goods.

    A decent mobile phone should be crystal clear if it is working correctly
    and there is enough backhaul to support it.


    and check with a headset to see if it a bad speaker/connector

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  • From Jeff Liebermann@jeffl@cruzio.com to sci.electronics.design on Mon Aug 10 09:28:42 2026
    From Newsgroup: sci.electronics.design

    On Mon, 10 Aug 2026 11:33:55 +0200, "Carlos E.R."
    <robin_listas@es.invalid> wrote:

    Curio: being Spanish, I do not know the word for '+'. I just asked
    ChatGPT, who says there is not an official one. It suggests o- de -uo.

    You're right. No '+' in the IPA (International phonetic alphabet). <https://en.wikipedia.org/wiki/Help:IPA/Spanish>

    To assign a suitable phonetic word for '+' requires that the word
    start with the letter '+'. Here's a list of candidates.

    "Spanish words that start with -: The entire list, from -acurut. to
    -u" <https://baselang.com/blog/vocabulary/spanish-words-that-start-with-n-tilde/>

    I was wondering how the phonetic alphabet was handled in Hebrew:
    "Modern Hebrew phonology" <https://en.wikipedia.org/wiki/Modern_Hebrew_phonology> <https://en.wikipedia.org/wiki/Help:IPA/Hebrew>
    Spanish is easier with just '+'.
    --
    Jeff Liebermann jeffl@cruzio.com
    PO Box 272 http://www.LearnByDestroying.com
    Ben Lomond CA 95005-0272 AE6KS 831-336-2558

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  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Mon Aug 10 12:13:07 2026
    From Newsgroup: sci.electronics.design

    On 8/10/2026 9:28 AM, Jeff Liebermann wrote:
    On Mon, 10 Aug 2026 11:33:55 +0200, "Carlos E.R."
    <robin_listas@es.invalid> wrote:

    Curio: being Spanish, I do not know the word for '|#'. I just asked
    ChatGPT, who says there is not an official one. It suggests rCL|a de |aurCY.

    You're right. No '|#' in the IPA (International phonetic alphabet). <https://en.wikipedia.org/wiki/Help:IPA/Spanish>

    '+#' is used to represent the sound in the IPA. It is not common in
    spoken english but "hides" in some words (like canyon -- though that
    is probably the most "pronounced"/stessed instance)

    [But, then again, there are many sounds that english doesn't embrace]

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