On this tab, you can select sound effects from 23 different environments ranging from padded cell to underwater. You can also check the box voice cancellation for karaoke usage. An auto gain control selection box is also available.
Realtek AL650 Guide
The NF7 and NF7-M motherboards use the Realtek AL650 for the onboard sound solution instead of the Nvidia Soundstorm solution found on the NF7-S and AN7 motherboards. The following guide will help you configure your Realtek audio system and provide you with the needed information to getting the most out of it.
Disclaimer: The information furnished below is believed to be accurate and reliable and is a regurgitation of information from various sources. However, no responsibility is assumed for the consequences of use of such information.
Overview and Features
Realtek tutorial provided by jkesa
The ALC650 is an 18-bit full-duplex six-channel AC’97 codec developed specifically for PC-based sound systems. It supports three pairs of audio outputs with independent volume control. The codec is equipped with its own amplifier (50mV/20Ohm) for headphones, which decreases the list of electronic components and the overall motherboard cost. The basic characteristics of Realtek ALC650 are as follows: Signal/noise ratio above 90dB; 18-bit ADC and 20-bit six-channel DAC; Four auxiliary analog stereo inputs for connection of internal audio sources (Line-in, CD, Video, Aux); Two auxiliary analog mono inputs (for PC-beep and Phone-in); One mono output; Stereo output; One standard microphone input plus one specific Front-Mic input (user-selected); Line-in is joined with Surround output; the Mic1 and Mic2 are joined with Center and LFE outputs; 3D Stereo Enhancement; External amplifier turn-off function; Digital S/PDIF output. Many users report sound of higher quality than the SB PCI-128.
Realtek AL650 Tips
The Realtek ALC650 drivers and Media Player are not included on all the Abit NF7 or NF7-M installation CD's. They are available from www.realtek.com.tw. Be careful not to get the versions of the drivers that are intended only for use on HP systems. Check the website often for new and improved driver updates. Make sure you have DirectX 8.1 or higher installed on your system. Check the Soundstorm section for more general sound tips and tricks.
Setup and configuration
Sound
Effects Tab
On this tab, you can select sound effects from 23 different environments ranging
from padded cell to underwater. You can also check the box voice
cancellation for karaoke usage. An auto gain control selection box is also
available.
Equalizer Tab
Here you can enable the equalizer and select
from various pre-set equalizer patterns. You may also customize the
equalizer for your own personal tastes and save, load or delete your custom
settings. These patterns will also show in the AV Rack Media Player.
Speaker Configuration Tab
Here you may choose from headphones, 2
channel, 4 channel or 6 channel mode for 5.1 output. The right hand panel
will show the color coded jacks for your selection.
Speaker Test Tab
This tab allows you to test the operation of
your speakers. It also provides for swapping of the center and subwoofer
output. This may be needed on some 5.1 speaker systems.
SPDIF-IN Tab
This tab provides for the SPDIF-In functions
and has an option for real time SPDIF-In monitoring. The SPDIF-In pin is located
on the FPIO2 motherboard header.
HRTF Demo Tab
Here we have the HRTF 3D positional audio
demo. HRTF, for those of you who care, stands for Head Related Transfer
Function. The Sound drop down lets you choose between LOOPY MUSIC or
BUZZING BEE. The Path drop down lets you choose the path of the sound from
horizontal, vertical, insect motion, manual-horizontal, manual-vertical.
The Environmental drop down lets you choose from none and various effects from
bathroom to underwater. This is a good test to use to insure your games
will work properly.
Microphone Tab
This tab allows you to choose various
options, noise cancellation, stereo microphone, directional recording, acoustic
echo cancellation. Which of these options are available depends upon the
microphone you are using.
General Tab
The General tab displays the Audio Driver
Version, DirectX Version, Audio Controller, and the AC97 Codec used. You
also have the choice of displaying the Realtek audio icon in the system tray and
the Language drop down allows you to choose from 14 different languages.
Always use DirectX 8.1 or higher.
Windows Volume Control
This is the standard Windows sound volume
control panel. Make sure all the device settings here are set for the
Realtek AC97 codec. Also go into the Windows Control Panel > Sounds and
Audio Devices and make sure Sound playback, Sound Recording, Midi music
playback, Voice playback and Voice recording are set to the Realtek AC97 codec.
Realtek AvRack Media Player
Here is a jpeg of the Realtek AV Rack Media
Player. All the options for it are described under the icons by holding
your mouse pointer over the icon for several seconds. Its usage and
functions are very similar to the winamp player. There are other skins
available.
Hopefully this guide will help you get the most from your Realtek sound, Enjoy!!