MP3Car.com - View Single Post - FAQ: Should I use onboard sound or an upgraded PCI or external soundcard?

durwood · 01-24-2008, 01:51 PM

http://www.realtek.com.tw/products/p...nn=4&ProdID=44

It's an ok codec, but some of the other ones have a higher SNR on their DACs. Possible ground loop problems can occur due to poor grounding techniques with onboard sound. I guess that can be true of any soundcard, but from my experience, the onboards are the worst. And then if you have too weak of a signal coming out it's not enough to work well with some ground loop isolators and you lose low end response. Not in all cases, but I've seen it happen.

Quote:

High-performance DACs with 95dB SNR (A-Weighting), ADCs with 85dB SNR (A-Weighting)
Meets performance requirements for audio on PC2001 systems and Microsoft WLP 2.x
Ten DAC channels support 16/20/24-bit PCM format for 7.1 sound playback, plus 2 channels of independent stereo sound output (multiple streaming) through the front panel output
2 stereo ADCs support 16/20/24-bit PCM format, one for stereo microphone, the other for legacy mixer recording
All DACs support 44.1k/48k/96k/192kHz sample rate
All ADCs support 44.1k/48k/96kHz sample rate
16/20/24-bit S/PDIF-OUT supports 44.1k/48k/96k/192kHz sample rate
16/20/24-bit S/PDIF-IN supports 44.1k/48k/96kHz sample rate
Up to four channels of microphone array input are supported for AEC/BF application
High-quality analog differential CD input
Supports external PCBEEP input and built-in digital BEEP generator
Software selectable 2.5V/3.75V VREFOUT
Two jack detection pins, each designed to detect up to 4 jacks
Reserve analog mixer architecture for backward compatibility with AC'97
Wide range (–80dB ~ +42dB) volume control with 1.5dB resolution of analog to analog mixer gain
All analog jacks are stereo input and output re-tasking for analog plug & play
Built-in headphone amplifiers for each re-tasking jack
2 GPIOs (General Purpose Input/Output) for customized applications
Power support: Digital: 3.3V; Analog: 3.0V~5.0V (Minimum AVDD is 3.0V)
Pin compatible with the ALC880 and ALC882
Enhanced S/PDIF-IN circuitry ensures compatibility with consumer DVD players
48-pin LQFP 'Green' package
Meets Microsoft WHQL/WLP 2.x audio requirements
EAX™ 1.0 & 2.0 compatible
Direct Sound 3D™ compatible
A3D™ compatible
I3DL2 compatible
HRTF 3D Positional Audio
Emulation of 26 sound environments to enhance gaming experience
10-Band Software Equalizer
Voice Cancellation and Key Shifting in Karaoke mode
Realtek Media Player
Enhanced Configuration Panel to improve user experience
Microphone Acoustic Echo Cancellation (AEC), Noise Suppression (NS), and Beam Forming (BF) technology for voice application
ALC883D features optional Dolby® Digital Live output for consumer equipment
ALC883DTS features optional DTS® Connect software

01-24-2008, 01:51 PM	#4
durwood Car Audio Moderator durwood's CarPC Specs Join Date: Sep 2006 Location: Chicagoland - Finally settled in St. Charles,IL Vehicle: 06 MazdaSpeed6 Posts: 1,782 My Photos: ()	http://www.realtek.com.tw/products/p...nn=4&ProdID=44 It's an ok codec, but some of the other ones have a higher SNR on their DACs. Possible ground loop problems can occur due to poor grounding techniques with onboard sound. I guess that can be true of any soundcard, but from my experience, the onboards are the worst. And then if you have too weak of a signal coming out it's not enough to work well with some ground loop isolators and you lose low end response. Not in all cases, but I've seen it happen. Quote: High-performance DACs with 95dB SNR (A-Weighting), ADCs with 85dB SNR (A-Weighting) Meets performance requirements for audio on PC2001 systems and Microsoft WLP 2.x Ten DAC channels support 16/20/24-bit PCM format for 7.1 sound playback, plus 2 channels of independent stereo sound output (multiple streaming) through the front panel output 2 stereo ADCs support 16/20/24-bit PCM format, one for stereo microphone, the other for legacy mixer recording All DACs support 44.1k/48k/96k/192kHz sample rate All ADCs support 44.1k/48k/96kHz sample rate 16/20/24-bit S/PDIF-OUT supports 44.1k/48k/96k/192kHz sample rate 16/20/24-bit S/PDIF-IN supports 44.1k/48k/96kHz sample rate Up to four channels of microphone array input are supported for AEC/BF application High-quality analog differential CD input Supports external PCBEEP input and built-in digital BEEP generator Software selectable 2.5V/3.75V VREFOUT Two jack detection pins, each designed to detect up to 4 jacks Reserve analog mixer architecture for backward compatibility with AC'97 Wide range (–80dB ~ +42dB) volume control with 1.5dB resolution of analog to analog mixer gain All analog jacks are stereo input and output re-tasking for analog plug & play Built-in headphone amplifiers for each re-tasking jack 2 GPIOs (General Purpose Input/Output) for customized applications Power support: Digital: 3.3V; Analog: 3.0V~5.0V (Minimum AVDD is 3.0V) Pin compatible with the ALC880 and ALC882 Enhanced S/PDIF-IN circuitry ensures compatibility with consumer DVD players 48-pin LQFP 'Green' package Meets Microsoft WHQL/WLP 2.x audio requirements EAX™ 1.0 & 2.0 compatible Direct Sound 3D™ compatible A3D™ compatible I3DL2 compatible HRTF 3D Positional Audio Emulation of 26 sound environments to enhance gaming experience 10-Band Software Equalizer Voice Cancellation and Key Shifting in Karaoke mode Realtek Media Player Enhanced Configuration Panel to improve user experience Microphone Acoustic Echo Cancellation (AEC), Noise Suppression (NS), and Beam Forming (BF) technology for voice application ALC883D features optional Dolby® Digital Live output for consumer equipment ALC883DTS features optional DTS® Connect software __________________ Worklog - Constantly upgrading. System under construction How to do all Audio Processing on the Computer Last edited by durwood; 01-24-2008 at 01:54 PM.