No Audio on Pavillion W7

I am trying to resurrect an older 32-bit HP Pavilion PC with Window7
Ultimate. All is going fine except that I cannot get any sound over
earphones. The phones are good as they work on my other PC.

Device Manager shows under sound, video and game controllers a good
'High Definition Audio Device'.

Under System-Sounds I show:
Under 'Playback' headphones is flagged green with 'High definition
audio driver' as default device. Speakers and Digital Audio are said
'Ready'.
Under 'Recording' headphones is same. Microphone and Line In are said
'Ready'.
Under 'Sounds' no 'test' produces sound

I have a feeling my sound is not high definition audio, but I cannot
find any audio drivers. The only identification I can find for this
PC is on the back as: PC109A-ABA and of course a serial nr. I think
it is a Pavillion. HP's driver site seems to have nothing for a PC
with this #.

Anyone have a thought?

Thank U
Sam

wrote:
I am trying to resurrect an older 32-bit HP Pavilion PC with Window7
Ultimate. All is going fine except that I cannot get any sound over
earphones. The phones are good as they work on my other PC.

Device Manager shows under sound, video and game controllers a good
'High Definition Audio Device'.

Under System-Sounds I show:
Under 'Playback' headphones is flagged green with 'High definition
audio driver' as default device. Speakers and Digital Audio are said
'Ready'.
Under 'Recording' headphones is same. Microphone and Line In are said
'Ready'.
Under 'Sounds' no 'test' produces sound

I have a feeling my sound is not high definition audio, but I cannot
find any audio drivers. The only identification I can find for this
PC is on the back as: PC109A-ABA and of course a serial nr. I think
it is a Pavillion. HP's driver site seems to have nothing for a PC
with this #.

Anyone have a thought?

Thank U
Sam

Non HP sites recognize the HP number. Use Google.
http://www.driverscape.com/manufactu...ba-a630n/14825

On Wed, 18 Jan 2017 14:21:02 -0600, Paul in Houston TX
wrote:

wrote:
I am trying to resurrect an older 32-bit HP Pavilion PC with Window7
Ultimate. All is going fine except that I cannot get any sound over
earphones. The phones are good as they work on my other PC.

Device Manager shows under sound, video and game controllers a good
'High Definition Audio Device'.

Under System-Sounds I show:
Under 'Playback' headphones is flagged green with 'High definition
audio driver' as default device. Speakers and Digital Audio are said
'Ready'.
Under 'Recording' headphones is same. Microphone and Line In are said
'Ready'.
Under 'Sounds' no 'test' produces sound

I have a feeling my sound is not high definition audio, but I cannot
find any audio drivers. The only identification I can find for this
PC is on the back as: PC109A-ABA and of course a serial nr. I think
it is a Pavillion. HP's driver site seems to have nothing for a PC
with this #.

Anyone have a thought?

Thank U
Sam

Non HP sites recognize the HP number. Use Google.
http://www.driverscape.com/manufactu...ba-a630n/14825


Well - the only audio driver I found there was for


Realtek High Definition Audio

Driver Date 2013-03-29 File Size: 146.88M
Driver Version: 6.0.1.6873 Vendor: Realtek
Supported OS: Windows 10 32 & 64bit, Windows 8.1 32 & 64bit, Windows
7 32 & 64bit, Windows Vista 32 & 64bit


Realtek_HD_Audio_Win7_Win8_R271

which I downloaded and installed, but it did not help.

I am not sure I have high definition audio anyway, since I am
connecting to the simple mobo audio port.

What do you think?

Thanks

Sam

wrote:
On Wed, 18 Jan 2017 14:21:02 -0600, Paul in Houston TX
wrote:

wrote:
I am trying to resurrect an older 32-bit HP Pavilion PC with Window7
Ultimate. All is going fine except that I cannot get any sound over
earphones. The phones are good as they work on my other PC.

Device Manager shows under sound, video and game controllers a good
'High Definition Audio Device'.

Under System-Sounds I show:
Under 'Playback' headphones is flagged green with 'High definition
audio driver' as default device. Speakers and Digital Audio are said
'Ready'.
Under 'Recording' headphones is same. Microphone and Line In are said
'Ready'.
Under 'Sounds' no 'test' produces sound

I have a feeling my sound is not high definition audio, but I cannot
find any audio drivers. The only identification I can find for this
PC is on the back as: PC109A-ABA and of course a serial nr. I think
it is a Pavillion. HP's driver site seems to have nothing for a PC
with this #.

Anyone have a thought?

Thank U
Sam

Non HP sites recognize the HP number. Use Google.
http://www.driverscape.com/manufactu...ba-a630n/14825


Well - the only audio driver I found there was for


Realtek High Definition Audio

Driver Date 2013-03-29 File Size: 146.88M
Driver Version: 6.0.1.6873 Vendor: Realtek
Supported OS: Windows 10 32 & 64bit, Windows 8.1 32 & 64bit, Windows
7 32 & 64bit, Windows Vista 32 & 64bit


Realtek_HD_Audio_Win7_Win8_R271

which I downloaded and installed, but it did not help.

I am not sure I have high definition audio anyway, since I am
connecting to the simple mobo audio port.

What do you think?

Thanks

Sam

RealTec seems to call most of their drivers HiDef.
What does it say in Device Manager for Sound?

On 1/18/2017 4:17 PM, Paul in Houston TX wrote:
wrote:
On Wed, 18 Jan 2017 14:21:02 -0600, Paul in Houston TX
wrote:

wrote:
I am trying to resurrect an older 32-bit HP Pavilion PC with Window7
Ultimate. All is going fine except that I cannot get any sound over
earphones. The phones are good as they work on my other PC.

Device Manager shows under sound, video and game controllers a good
'High Definition Audio Device'.

Under System-Sounds I show:
Under 'Playback' headphones is flagged green with 'High definition
audio driver' as default device. Speakers and Digital Audio are said
'Ready'.
Under 'Recording' headphones is same. Microphone and Line In are said
'Ready'.
Under 'Sounds' no 'test' produces sound

I have a feeling my sound is not high definition audio, but I cannot
find any audio drivers. The only identification I can find for this
PC is on the back as: PC109A-ABA and of course a serial nr. I think
it is a Pavillion. HP's driver site seems to have nothing for a PC
with this #.

Anyone have a thought?

Thank U
Sam

Non HP sites recognize the HP number. Use Google.
http://www.driverscape.com/manufactu...ba-a630n/14825



Well - the only audio driver I found there was for


Realtek High Definition Audio

Driver Date 2013-03-29 File Size: 146.88M
Driver Version: 6.0.1.6873 Vendor: Realtek
Supported OS: Windows 10 32 & 64bit, Windows 8.1 32 & 64bit, Windows
7 32 & 64bit, Windows Vista 32 & 64bit


Realtek_HD_Audio_Win7_Win8_R271

which I downloaded and installed, but it did not help.

I am not sure I have high definition audio anyway, since I am
connecting to the simple mobo audio port.

What do you think?

Thanks

Sam

RealTec seems to call most of their drivers HiDef.
What does it say in Device Manager for Sound?

I know many people have second thoughts about using 3rd party driver
programs but I have had extremely good luck using the free version of
Driver Booster 4 from Iobit. www.iobit.com/en/db/

Let it have a try to see what it can find for a working driver. You
have the option of not installing the driver they find for your box.

wrote:
I am trying to resurrect an older 32-bit HP Pavilion PC with Window7
Ultimate. All is going fine except that I cannot get any sound over
earphones. The phones are good as they work on my other PC.

Device Manager shows under sound, video and game controllers a good
'High Definition Audio Device'.

Under System-Sounds I show:
Under 'Playback' headphones is flagged green with 'High definition
audio driver' as default device. Speakers and Digital Audio are said
'Ready'.
Under 'Recording' headphones is same. Microphone and Line In are said
'Ready'.
Under 'Sounds' no 'test' produces sound

I have a feeling my sound is not high definition audio, but I cannot
find any audio drivers. The only identification I can find for this
PC is on the back as: PC109A-ABA and of course a serial nr. I think
it is a Pavillion. HP's driver site seems to have nothing for a PC
with this #.

Anyone have a thought?

Thank U
Sam

If you're having trouble finding the (now non-existent)
spec page for the A630N, you could take the side
off the computer, look at the motherboard, and see if
it has any identifying marks.

http://support.hp.com/us-en/document/c00196251

For example, on that Asus PTGD1-LA made for HP, the label
between PCI slots identifies it as such. You can see
it in the picture. There are some white letters, between
the first and second PCI slots. Having a secondary
identifier like that, can help you in your search.

http://support.hp.com/doc-images/301/c00208573.jpg

That example uses RealTek HDAudio.

If your sound was Realtek, that manufacturer happens to
offer very nice driver files for both AC'97 and HDAudio.
This is unlike other brands of audio (Sigmatel/IDT) where
you'd be better off using the HP site for the driver.
RealTek has their own nice website. Some other sound chip
makers, like Analog Devices, they make you go to your
computer manufacturer for actual driver distribution.
RealTek is one of the exceptions.

http://www.realtek.com.tw/downloads/...vel=3 &Conn=2

On modern OSes, it's possible for the OS in-box "generic"
HDAudio driver, to provide a working LineOut. What the RealTek
driver can provide, is additional support, such as a
software DSP equalizer, or provide support for certain
telephony options. You also get the surreal RealTek
control panel to play with :-) (It didn't always look
that goofy.)

Of the two impedance sensing methods, RealTek lacks actual
load sensing, and detects that you've plugged something in,
only if the motherboard jack has "side-contacts". It sometimes
happens, that the jacks on the front of the computer case,
are AC'97 type jacks, and don't have the side-contacts needed for
HDAudio. And then, when you plug in front panel headphones,
it takes some control panel work to enable it. Analog Devices
chips have actual analog sensing - the chip sends a 25KHz AC
waveform to the jack, and can measure current flow into the
headphones - and then it knows headphones are there. For patent
reasons, RealTek doesn't have that.

Your best test case with HDAudio, is to test with the green jack
on the back of the computer, after verifying (in the case of
computers with *two* sound chips), that the correct sound
chip is selected as the default in the Windows settings.
I think you've done all this, so why this isn't working
is a bit of a puzzle.

While you can disable audio in the BIOS, I doubt that's
it either, as the item would then have disappeared from
Device Manager too.

To rule out a hardware issue, you could always temporarily
boot another OS and verify the sound works. That's if you
thought the 5V regulator feeding the HDAudio chip was blown,
or the outputs on the chip were blown. When both channels
disappear (Left and Right), that generally suggests a
driver or software problem of some sort. And muting the
speakers is a common reason for no sound to be present - again,
I'm sure you'd notice the indicator in the panel if that
happened :-)

Good luck,
Paul

On Wed, 18 Jan 2017 14:49:36 -0500, wrote:

I am trying to resurrect an older 32-bit HP Pavilion PC with Window7
Ultimate. All is going fine except that I cannot get any sound over
earphones. The phones are good as they work on my other PC.

Anyone have a thought?

Well, I have some, but how useful I don't know ...

Many PCs, especially laptops, can do things like mute the sound under
keyboard control - for example my Dell laptop has Fn + a key
between F12 and Insert, but if you use that you can see that the
sound is muted in the volume control in the system tray. I suppose a
desktop HP *might* be a little different, but I wouldn't have expected
it to be.

Then there's question of: "Are you sure that you've actually plugged
it into the headphone socket, not the microphone or line-in socket?".
My eyes are getting old and find it difficult to see in dark corners,
so these days I end up doing that sort of thing more often than I used
to, maybe yours are in a similar state.

Finally, some of the chips on PCs can configure their ports
differently, for example, either a microphone socket + headphone
socket, or else a pair of line outs to give quadrophonic, or the same
+ line-in configured for six-way output. If your outputs were
configured wrongly, and you played just a stereo file, would the two
channels be copied to the others? I don't know, but I suspect not. To
solve this, you'd have to find out what audio chip was in use and
install the proper drivers for it.

You could also try recording using the laptop, using either a
microphone or line-in source and the legacy MediaPlayer app that came
with earlier versions of Windows, or else dedicated sound recording
software, just to see if you can generate a wave file. If that
worked, it would tell you that the sound subsystem is receiving power
and is at least partially functional.

For completeness sake, though it's probably not relevant here, in some
laptops, some subsystems are on daughterboards which can develop dodgy
connections with the motherboard - I had the Ethernet/USB
daughterboard on a Dell Latitude come adrift and had to reattach it,
which I managed to do by drilling a hole through both and using a
small nut and bolt with a seperator sleeve to keep the boards the
right sort of distance apart - a case of the bodge being stronger
and better than the original design!
--
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Please always reply to ng as the email in this post's
header does not exist. Or use a contact address at:
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On Wed, 18 Jan 2017 16:36:15 -0600, GlowingBlueMist
wrote:

On 1/18/2017 4:17 PM, Paul in Houston TX wrote:
wrote:
On Wed, 18 Jan 2017 14:21:02 -0600, Paul in Houston TX
wrote:

wrote:
I am trying to resurrect an older 32-bit HP Pavilion PC with Window7
Ultimate. All is going fine except that I cannot get any sound over
earphones. The phones are good as they work on my other PC.

Device Manager shows under sound, video and game controllers a good
'High Definition Audio Device'.

Under System-Sounds I show:
Under 'Playback' headphones is flagged green with 'High definition
audio driver' as default device. Speakers and Digital Audio are said
'Ready'.
Under 'Recording' headphones is same. Microphone and Line In are said
'Ready'.
Under 'Sounds' no 'test' produces sound

I have a feeling my sound is not high definition audio, but I cannot
find any audio drivers. The only identification I can find for this
PC is on the back as: PC109A-ABA and of course a serial nr. I think
it is a Pavillion. HP's driver site seems to have nothing for a PC
with this #.

Anyone have a thought?

Thank U
Sam

Non HP sites recognize the HP number. Use Google.
http://www.driverscape.com/manufactu...ba-a630n/14825



Well - the only audio driver I found there was for


Realtek High Definition Audio

Driver Date 2013-03-29 File Size: 146.88M
Driver Version: 6.0.1.6873 Vendor: Realtek
Supported OS: Windows 10 32 & 64bit, Windows 8.1 32 & 64bit, Windows
7 32 & 64bit, Windows Vista 32 & 64bit


Realtek_HD_Audio_Win7_Win8_R271

which I downloaded and installed, but it did not help.

I am not sure I have high definition audio anyway, since I am
connecting to the simple mobo audio port.

What do you think?

Thanks

Sam

RealTec seems to call most of their drivers HiDef.
What does it say in Device Manager for Sound?

I know many people have second thoughts about using 3rd party driver
programs but I have had extremely good luck using the free version of
Driver Booster 4 from Iobit. www.iobit.com/en/db/

I get
'page not found'
??
Sam

Let it have a try to see what it can find for a working driver. You
have the option of not installing the driver they find for your box.

On Wed, 18 Jan 2017 17:52:56 -0500, Paul
wrote:

wrote:
I am trying to resurrect an older 32-bit HP Pavilion PC with Window7
Ultimate. All is going fine except that I cannot get any sound over
earphones. The phones are good as they work on my other PC.

Device Manager shows under sound, video and game controllers a good
'High Definition Audio Device'.

Under System-Sounds I show:
Under 'Playback' headphones is flagged green with 'High definition
audio driver' as default device. Speakers and Digital Audio are said
'Ready'.
Under 'Recording' headphones is same. Microphone and Line In are said
'Ready'.
Under 'Sounds' no 'test' produces sound

I have a feeling my sound is not high definition audio, but I cannot
find any audio drivers. The only identification I can find for this
PC is on the back as: PC109A-ABA and of course a serial nr. I think
it is a Pavillion. HP's driver site seems to have nothing for a PC
with this #.

Anyone have a thought?

Thank U
Sam

If you're having trouble finding the (now non-existent)
spec page for the A630N, you could take the side
off the computer, look at the motherboard, and see if
it has any identifying marks.

http://support.hp.com/us-en/document/c00196251

For example, on that Asus PTGD1-LA made for HP, the label
between PCI slots identifies it as such. You can see
it in the picture. There are some white letters, between
the first and second PCI slots. Having a secondary
identifier like that, can help you in your search.

http://support.hp.com/doc-images/301/c00208573.jpg

That example uses RealTek HDAudio.

If your sound was Realtek, that manufacturer happens to
offer very nice driver files for both AC'97 and HDAudio.
This is unlike other brands of audio (Sigmatel/IDT) where
you'd be better off using the HP site for the driver.
RealTek has their own nice website. Some other sound chip
makers, like Analog Devices, they make you go to your
computer manufacturer for actual driver distribution.
RealTek is one of the exceptions.

http://www.realtek.com.tw/downloads/...vel=3 &Conn=2

On modern OSes, it's possible for the OS in-box "generic"
HDAudio driver, to provide a working LineOut. What the RealTek
driver can provide, is additional support, such as a
software DSP equalizer, or provide support for certain
telephony options. You also get the surreal RealTek
control panel to play with :-) (It didn't always look
that goofy.)

Of the two impedance sensing methods, RealTek lacks actual
load sensing, and detects that you've plugged something in,
only if the motherboard jack has "side-contacts". It sometimes
happens, that the jacks on the front of the computer case,
are AC'97 type jacks, and don't have the side-contacts needed for
HDAudio. And then, when you plug in front panel headphones,
it takes some control panel work to enable it. Analog Devices
chips have actual analog sensing - the chip sends a 25KHz AC
waveform to the jack, and can measure current flow into the
headphones - and then it knows headphones are there. For patent
reasons, RealTek doesn't have that.

Your best test case with HDAudio, is to test with the green jack
on the back of the computer, after verifying (in the case of
computers with *two* sound chips), that the correct sound
chip is selected as the default in the Windows settings.
I think you've done all this, so why this isn't working
is a bit of a puzzle.

While you can disable audio in the BIOS, I doubt that's
it either, as the item would then have disappeared from
Device Manager too.

To rule out a hardware issue, you could always temporarily
boot another OS and verify the sound works. That's if you
thought the 5V regulator feeding the HDAudio chip was blown,
or the outputs on the chip were blown. When both channels
disappear (Left and Right), that generally suggests a
driver or software problem of some sort. And muting the
speakers is a common reason for no sound to be present - again,
I'm sure you'd notice the indicator in the panel if that
happened :-)

Good luck,
Paul


I wonder
Do I or don't I have 'hi definition' audio? What is that anyway?
'bout time I found out I think.
Dumb Q I know/

Sam

wrote:
On Wed, 18 Jan 2017 17:52:56 -0500, Paul
wrote:

wrote:
I am trying to resurrect an older 32-bit HP Pavilion PC with Window7
Ultimate. All is going fine except that I cannot get any sound over
earphones. The phones are good as they work on my other PC.

Device Manager shows under sound, video and game controllers a good
'High Definition Audio Device'.

Under System-Sounds I show:
Under 'Playback' headphones is flagged green with 'High definition
audio driver' as default device. Speakers and Digital Audio are said
'Ready'.
Under 'Recording' headphones is same. Microphone and Line In are said
'Ready'.
Under 'Sounds' no 'test' produces sound

I have a feeling my sound is not high definition audio, but I cannot
find any audio drivers. The only identification I can find for this
PC is on the back as: PC109A-ABA and of course a serial nr. I think
it is a Pavillion. HP's driver site seems to have nothing for a PC
with this #.

Anyone have a thought?

Thank U
Sam

If you're having trouble finding the (now non-existent)
spec page for the A630N, you could take the side
off the computer, look at the motherboard, and see if
it has any identifying marks.

http://support.hp.com/us-en/document/c00196251

For example, on that Asus PTGD1-LA made for HP, the label
between PCI slots identifies it as such. You can see
it in the picture. There are some white letters, between
the first and second PCI slots. Having a secondary
identifier like that, can help you in your search.

http://support.hp.com/doc-images/301/c00208573.jpg

That example uses RealTek HDAudio.

If your sound was Realtek, that manufacturer happens to
offer very nice driver files for both AC'97 and HDAudio.
This is unlike other brands of audio (Sigmatel/IDT) where
you'd be better off using the HP site for the driver.
RealTek has their own nice website. Some other sound chip
makers, like Analog Devices, they make you go to your
computer manufacturer for actual driver distribution.
RealTek is one of the exceptions.

http://www.realtek.com.tw/downloads/...vel=3 &Conn=2

On modern OSes, it's possible for the OS in-box "generic"
HDAudio driver, to provide a working LineOut. What the RealTek
driver can provide, is additional support, such as a
software DSP equalizer, or provide support for certain
telephony options. You also get the surreal RealTek
control panel to play with :-) (It didn't always look
that goofy.)

Of the two impedance sensing methods, RealTek lacks actual
load sensing, and detects that you've plugged something in,
only if the motherboard jack has "side-contacts". It sometimes
happens, that the jacks on the front of the computer case,
are AC'97 type jacks, and don't have the side-contacts needed for
HDAudio. And then, when you plug in front panel headphones,
it takes some control panel work to enable it. Analog Devices
chips have actual analog sensing - the chip sends a 25KHz AC
waveform to the jack, and can measure current flow into the
headphones - and then it knows headphones are there. For patent
reasons, RealTek doesn't have that.

Your best test case with HDAudio, is to test with the green jack
on the back of the computer, after verifying (in the case of
computers with *two* sound chips), that the correct sound
chip is selected as the default in the Windows settings.
I think you've done all this, so why this isn't working
is a bit of a puzzle.

While you can disable audio in the BIOS, I doubt that's
it either, as the item would then have disappeared from
Device Manager too.

To rule out a hardware issue, you could always temporarily
boot another OS and verify the sound works. That's if you
thought the 5V regulator feeding the HDAudio chip was blown,
or the outputs on the chip were blown. When both channels
disappear (Left and Right), that generally suggests a
driver or software problem of some sort. And muting the
speakers is a common reason for no sound to be present - again,
I'm sure you'd notice the indicator in the panel if that
happened :-)

Good luck,
Paul


I wonder
Do I or don't I have 'hi definition' audio? What is that anyway?
'bout time I found out I think.
Dumb Q I know/

Sam

What does it say in Device Manager?

On 1/18/2017 5:51 PM, wrote:
On Wed, 18 Jan 2017 16:36:15 -0600, GlowingBlueMist
wrote:

On 1/18/2017 4:17 PM, Paul in Houston TX wrote:
wrote:
On Wed, 18 Jan 2017 14:21:02 -0600, Paul in Houston TX
wrote:

wrote:
I am trying to resurrect an older 32-bit HP Pavilion PC with Window7
Ultimate. All is going fine except that I cannot get any sound over
earphones. The phones are good as they work on my other PC.

Device Manager shows under sound, video and game controllers a good
'High Definition Audio Device'.

Under System-Sounds I show:
Under 'Playback' headphones is flagged green with 'High definition
audio driver' as default device. Speakers and Digital Audio are said
'Ready'.
Under 'Recording' headphones is same. Microphone and Line In are said
'Ready'.
Under 'Sounds' no 'test' produces sound

I have a feeling my sound is not high definition audio, but I cannot
find any audio drivers. The only identification I can find for this
PC is on the back as: PC109A-ABA and of course a serial nr. I think
it is a Pavillion. HP's driver site seems to have nothing for a PC
with this #.

Anyone have a thought?

Thank U
Sam

Non HP sites recognize the HP number. Use Google.
http://www.driverscape.com/manufactu...ba-a630n/14825



Well - the only audio driver I found there was for


Realtek High Definition Audio

Driver Date 2013-03-29 File Size: 146.88M
Driver Version: 6.0.1.6873 Vendor: Realtek
Supported OS: Windows 10 32 & 64bit, Windows 8.1 32 & 64bit, Windows
7 32 & 64bit, Windows Vista 32 & 64bit


Realtek_HD_Audio_Win7_Win8_R271

which I downloaded and installed, but it did not help.

I am not sure I have high definition audio anyway, since I am
connecting to the simple mobo audio port.

What do you think?

Thanks

Sam

RealTec seems to call most of their drivers HiDef.
What does it say in Device Manager for Sound?

I know many people have second thoughts about using 3rd party driver
programs but I have had extremely good luck using the free version of
Driver Booster 4 from Iobit. www.iobit.com/en/db/

I get
'page not found'
??
Sam

Let it have a try to see what it can find for a working driver. You
have the option of not installing the driver they find for your box.
Sorry looks like I grabbed the wrong link.
This one should get you to Driver Booster 4.
http://www.iobit.com/en/index.php

Paul in Houston TX wrote:
wrote:


I wonder
Do I or don't I have 'hi definition' audio? What is that anyway?
'bout time I found out I think.
Dumb Q I know/

Sam

What does it say in Device Manager?

Exactly.

"devmgmt.msc" is your friend.

*******

Sound chips sit on different busses.

The chip on the HP example motherboard looked a bit big,
like it might be sitting on PCI bus.

HDaudio and AC'97 on the other hand, share a lot. This
is just going from memory, no Wikipedia article:

1) 48 pin package.

2) 5 pin serial interface, with perhaps a separate
serial input and serial output. Bus supports multiple
clients, such as an HDAudio chip and a WinModem chip
at the same time. I think HDAudio can have up to three
clients sitting on the same bus, but the "use case" for
that capability, escapes me.

3) The data rate on the serial bus of the HDAudio interface,
tuns at twice the datarate of the AC'97 one.

4) HDAudio improves on AC'97, by no longer sharing the
same stereo DAC for Lineout as for Front Headphones. On
HDAudio, each of those gets its own stereo DAC. In general,
all the circuit groups in HDAudio are the same and can be
retasked. A jack could be used as an input or an output.
The headphone amp (32 ohms) could be turned on in lieu of
the wearker 600 ohm output, on any channel. There is a
limit to how many headphone amps that can be turned on
in the chip at the same time. Some chips will run two sets
of headphones at a time. Documentation is skimpy on this
topic (we're not sure how many things the software
driver prevents from happening).

So it's really not that much different from AC'97.

And as for the sampling rates and number of bits (24 bits @ 96K),
these capabilities aren't always delivered honestly. There
have been cases where a 24 bit sample, the software "zeroed out"
the lower eight bits, turning the audio channel into a
16 bit instance. In the frequency domain, while some devices
have extremely high sampling rate (192K), the analog reassembly
filter can be set to do "more than is required by the
Nyquist theorem". So rather than your RealTek chip functioning
as a 96KHz oscilloscope on input, when the sampling rate is
192K, the input filter could cut off the signal at a much
lower frequency. Perhaps the same filter is being used for
44KHz input as for 192KHz input, negating any benefit. So
take the sampling rate and resolution info with a grain
of salt. Someone will always be "stealing it from you" :-)
If you want an oscilloscope, buy one :-) The last time
I checked, you could get a rather nice one for around $350.00.

Paul

On Wed, 18 Jan 2017 20:59:14 -0600, GlowingBlueMist
wrote:

On 1/18/2017 5:51 PM, wrote:
On Wed, 18 Jan 2017 16:36:15 -0600, GlowingBlueMist
wrote:

On 1/18/2017 4:17 PM, Paul in Houston TX wrote:
wrote:
On Wed, 18 Jan 2017 14:21:02 -0600, Paul in Houston TX
wrote:

wrote:
I am trying to resurrect an older 32-bit HP Pavilion PC with Window7
Ultimate. All is going fine except that I cannot get any sound over
earphones. The phones are good as they work on my other PC.

Device Manager shows under sound, video and game controllers a good
'High Definition Audio Device'.

Under System-Sounds I show:
Under 'Playback' headphones is flagged green with 'High definition
audio driver' as default device. Speakers and Digital Audio are said
'Ready'.
Under 'Recording' headphones is same. Microphone and Line In are said
'Ready'.
Under 'Sounds' no 'test' produces sound

I have a feeling my sound is not high definition audio, but I cannot
find any audio drivers. The only identification I can find for this
PC is on the back as: PC109A-ABA and of course a serial nr. I think
it is a Pavillion. HP's driver site seems to have nothing for a PC
with this #.

Anyone have a thought?

Thank U
Sam

Non HP sites recognize the HP number. Use Google.
http://www.driverscape.com/manufactu...ba-a630n/14825



Well - the only audio driver I found there was for


Realtek High Definition Audio

Driver Date 2013-03-29 File Size: 146.88M
Driver Version: 6.0.1.6873 Vendor: Realtek
Supported OS: Windows 10 32 & 64bit, Windows 8.1 32 & 64bit, Windows
7 32 & 64bit, Windows Vista 32 & 64bit


Realtek_HD_Audio_Win7_Win8_R271

which I downloaded and installed, but it did not help.

I am not sure I have high definition audio anyway, since I am
connecting to the simple mobo audio port.

What do you think?

Thanks

Sam

RealTec seems to call most of their drivers HiDef.
What does it say in Device Manager for Sound?

I know many people have second thoughts about using 3rd party driver
programs but I have had extremely good luck using the free version of
Driver Booster 4 from Iobit. www.iobit.com/en/db/

I get
'page not found'
??
Sam

Let it have a try to see what it can find for a working driver. You
have the option of not installing the driver they find for your box.
Sorry looks like I grabbed the wrong link.
This one should get you to Driver Booster 4.
http://www.iobit.com/en/index.php

I cuda shuda Googled IOBIT to find the site, but I was tired.

When I tried your URL, I got:

Your connection is not private
Attackers might be trying to steal your information from www.iobit.com
(for example, passwords, messages, or credit cards).

I quit immediately!

Thanks anyway.

Sam

On Wed, 18 Jan 2017 19:28:31 -0600, Paul in Houston TX
wrote:

wrote:
On Wed, 18 Jan 2017 17:52:56 -0500, Paul
wrote:

wrote:
I am trying to resurrect an older 32-bit HP Pavilion PC with Window7
Ultimate. All is going fine except that I cannot get any sound over
earphones. The phones are good as they work on my other PC.

Device Manager shows under sound, video and game controllers a good
'High Definition Audio Device'.

Under System-Sounds I show:
Under 'Playback' headphones is flagged green with 'High definition
audio driver' as default device. Speakers and Digital Audio are said
'Ready'.
Under 'Recording' headphones is same. Microphone and Line In are said
'Ready'.
Under 'Sounds' no 'test' produces sound

I have a feeling my sound is not high definition audio, but I cannot
find any audio drivers. The only identification I can find for this
PC is on the back as: PC109A-ABA and of course a serial nr. I think
it is a Pavillion. HP's driver site seems to have nothing for a PC
with this #.

Anyone have a thought?

Thank U
Sam

If you're having trouble finding the (now non-existent)
spec page for the A630N, you could take the side
off the computer, look at the motherboard, and see if
it has any identifying marks.

http://support.hp.com/us-en/document/c00196251

For example, on that Asus PTGD1-LA made for HP, the label
between PCI slots identifies it as such. You can see
it in the picture. There are some white letters, between
the first and second PCI slots. Having a secondary
identifier like that, can help you in your search.

http://support.hp.com/doc-images/301/c00208573.jpg

That example uses RealTek HDAudio.

If your sound was Realtek, that manufacturer happens to
offer very nice driver files for both AC'97 and HDAudio.
This is unlike other brands of audio (Sigmatel/IDT) where
you'd be better off using the HP site for the driver.
RealTek has their own nice website. Some other sound chip
makers, like Analog Devices, they make you go to your
computer manufacturer for actual driver distribution.
RealTek is one of the exceptions.

http://www.realtek.com.tw/downloads/...vel=3 &Conn=2

On modern OSes, it's possible for the OS in-box "generic"
HDAudio driver, to provide a working LineOut. What the RealTek
driver can provide, is additional support, such as a
software DSP equalizer, or provide support for certain
telephony options. You also get the surreal RealTek
control panel to play with :-) (It didn't always look
that goofy.)

Of the two impedance sensing methods, RealTek lacks actual
load sensing, and detects that you've plugged something in,
only if the motherboard jack has "side-contacts". It sometimes
happens, that the jacks on the front of the computer case,
are AC'97 type jacks, and don't have the side-contacts needed for
HDAudio. And then, when you plug in front panel headphones,
it takes some control panel work to enable it. Analog Devices
chips have actual analog sensing - the chip sends a 25KHz AC
waveform to the jack, and can measure current flow into the
headphones - and then it knows headphones are there. For patent
reasons, RealTek doesn't have that.

Your best test case with HDAudio, is to test with the green jack
on the back of the computer, after verifying (in the case of
computers with *two* sound chips), that the correct sound
chip is selected as the default in the Windows settings.
I think you've done all this, so why this isn't working
is a bit of a puzzle.

While you can disable audio in the BIOS, I doubt that's
it either, as the item would then have disappeared from
Device Manager too.

To rule out a hardware issue, you could always temporarily
boot another OS and verify the sound works. That's if you
thought the 5V regulator feeding the HDAudio chip was blown,
or the outputs on the chip were blown. When both channels
disappear (Left and Right), that generally suggests a
driver or software problem of some sort. And muting the
speakers is a common reason for no sound to be present - again,
I'm sure you'd notice the indicator in the panel if that
happened :-)

Good luck,
Paul


I wonder
Do I or don't I have 'hi definition' audio? What is that anyway?
'bout time I found out I think.
Dumb Q I know/

Sam

What does it say in Device Manager?

Realtek High Definition Audio
The device is working properly
Thank you
Sam

On Wed, 18 Jan 2017 23:19:13 -0500, Paul
wrote:

Paul in Houston TX wrote:
wrote:


I wonder
Do I or don't I have 'hi definition' audio? What is that anyway?
'bout time I found out I think.
Dumb Q I know/

Sam

What does it say in Device Manager?

Exactly.

"devmgmt.msc" is your friend.

*******

Sound chips sit on different busses.

The chip on the HP example motherboard looked a bit big,
like it might be sitting on PCI bus.

HDaudio and AC'97 on the other hand, share a lot. This
is just going from memory, no Wikipedia article:

1) 48 pin package.

2) 5 pin serial interface, with perhaps a separate
serial input and serial output. Bus supports multiple
clients, such as an HDAudio chip and a WinModem chip
at the same time. I think HDAudio can have up to three
clients sitting on the same bus, but the "use case" for
that capability, escapes me.

3) The data rate on the serial bus of the HDAudio interface,
tuns at twice the datarate of the AC'97 one.

4) HDAudio improves on AC'97, by no longer sharing the
same stereo DAC for Lineout as for Front Headphones. On
HDAudio, each of those gets its own stereo DAC. In general,
all the circuit groups in HDAudio are the same and can be
retasked. A jack could be used as an input or an output.
The headphone amp (32 ohms) could be turned on in lieu of
the wearker 600 ohm output, on any channel. There is a
limit to how many headphone amps that can be turned on
in the chip at the same time. Some chips will run two sets
of headphones at a time. Documentation is skimpy on this
topic (we're not sure how many things the software
driver prevents from happening).

So it's really not that much different from AC'97.

And as for the sampling rates and number of bits (24 bits @ 96K),
these capabilities aren't always delivered honestly. There
have been cases where a 24 bit sample, the software "zeroed out"
the lower eight bits, turning the audio channel into a
16 bit instance. In the frequency domain, while some devices
have extremely high sampling rate (192K), the analog reassembly
filter can be set to do "more than is required by the
Nyquist theorem". So rather than your RealTek chip functioning
as a 96KHz oscilloscope on input, when the sampling rate is
192K, the input filter could cut off the signal at a much
lower frequency. Perhaps the same filter is being used for
44KHz input as for 192KHz input, negating any benefit. So
take the sampling rate and resolution info with a grain
of salt. Someone will always be "stealing it from you" :-)
If you want an oscilloscope, buy one :-) The last time
I checked, you could get a rather nice one for around $350.00.

Paul

Then it should work!
Thanks
Sam