I can't really find the cause of it.... some how, sometime, while watching TV and surfing the Net, etc... the PCTVP audio start to be "flooded" with water; the audio sound like someone talking underwater.

And it has an extremely simple and only way to turn off this special effect, exit and start PCTVP. How to turn it on? No manual button or method, PCTVP has A.I. feature, it will know when you are dull and would try to amuse you by turning on the bubbles audio special feature... just to make you happy.

After so much limitations found in PCTVP, I finally found a hidden special feature in PCTVP.  This hidden special feature can never be found in my 5 yrs-old VGA-TV cards, may be it is too old to have such wonderful feature.

Do you have a program like SoundManager in Control Panel? You can set the audio quality on there and disable all effects.

 Also, open PCTV settings and then go to Audio tab and set the defaults to your sound card.

Firstly I would like to thank you for your reply. When I set it to 'default' under 'Audio Output Device', it seems to work... so far. But... I would like to highlight that there is no such setting as 'Default Sound Card', what was listed is 'Default DirectSound Device'.

Ok. My problem is only more than half solved, the bubbling sound still there, but now, it's on and off, being off most of the time.

Look for a program sound effect manager in control panel, tell me if you see one.

Then post your complete PC specifications and tell us the model of your PCTV Tuner.

Update your sound card driver and test again.

Keep us posted.

All the drivers and BIOS are latest. My PC spec are as follows:

 TVCenter Pro Install Information

Installed software
TVCenter Pro
Build: 1903
Version: 4.98.1903
C:\Program Files\Pinnacle\TVCenter Pro
Serial number: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX

Installed TV tuner hardware
PCTV Dual Hybrid Pro PCIe, PCTV Dual Hybrid Pro PCIe, device 2

Registration status
Registered

TVCenter Pro features
MPEG2 preview and recording is enabled.
MPEG4 encoding/decoding is enabled.
DivX recording is enabled.
Sony PSP/Apple IPod recording is enabled.
AC3 to stereo downmix is enabled.
Direct to DVD recording is enabled.
HDTV H.264 preview is enabled.
DistanTV is disabled. Visit our web shop (www.pcle.com) and get an upgrade
Registered

 

System information

OS Version Windows Vista, Rev. 6.0.6001, Service Pack 1
Geo ID 215
Country ID 65 / Override 65
User: Admin

Processor
Intel(R) Core(TM)2 Quad  CPU   Q9450  @ 2.66GHz, max: 2.7GHz, running at: 2.7GHz
Hyper-threading technology disabled
Power Scheme: High performance

System memory
Total physical memory 1.998GB, memory available for applications 821MB

Graphic card
Primary graphics adapter: NVIDIA GeForce 9600 GT
Driver name: nvd3dum.dll,nvwgf2um.dll, version 7.15.11.7516
Graphic memory 512MB supporting MPEG-2 decode acceleration

Hard disc
Drive C:\ (Vista X86), not benchmarked yet

USB controller
Manufacturer: Intel(R) ICH9 Family USB2 Enhanced Host Controller - 293A, type USB 2.0

Primary sound device
Realtek High Definition Audio

DVD Recorder
XXXXXXXXXXXXXX XX-XXXXX XXXX

Available Channels
All TV channels : 9
analog TV : 8
DVB-T TV : 1
All radio channels : 42
FM Radio : 21
DVB-T Radio : 0
DVB-T Radio : 1
FM Radio : 20
Internet Radio : 20
Internet Radio : 20