An00bis
New Head-Fier
- Joined
- Dec 26, 2013
- Posts
- 20
- Likes
- 10
I'm running windows 7 64bits, and the volume is at 30/100
Sound chip on the motherboard:
http://www.hardwaresecrets.com/datasheets/ALC889_DataSheet_1.0.pdf
I've looked everywhere and can't find the voltage output for analog, I've found tons of different values like:
//
Full-Scale Output Voltage (Gain=0dB)
DAC 1.25 Vrms
Headphone Amplifier Output@32ΩLoad 1.1 Vrms
//
Another thing:
REFOUTx Output Voltage 0.5 * AVDD (which is 5V)
//
After googling i found a driver that had this text in its description, it's a driver that can be used for this onboard sound chip:
"- Power support: Digital: 3.3V; Analog: 5.0V (Minimum AVDD is 3.6V)"
//
I don't know what value to use, looked everywhere on that datasheet and it's full of technical terms and proprietary names that make no sense
my headphones are: http://us.store.creative.com/Creative-Aurvana-Live-Headphones/M/B000ZJZ7OA.htm
important specifications:
How can i approximate the decibels of the sound it produces?
I tried to use this guide but it's just impossible: http://www.head-fi.org/t/586490/approximating-headphone-volume-output-db
can someone help me figure this out?
Sound chip on the motherboard:
http://www.hardwaresecrets.com/datasheets/ALC889_DataSheet_1.0.pdf
I've looked everywhere and can't find the voltage output for analog, I've found tons of different values like:
//
Full-Scale Output Voltage (Gain=0dB)
DAC 1.25 Vrms
Headphone Amplifier Output@32ΩLoad 1.1 Vrms
//
Another thing:
REFOUTx Output Voltage 0.5 * AVDD (which is 5V)
//
After googling i found a driver that had this text in its description, it's a driver that can be used for this onboard sound chip:
"- Power support: Digital: 3.3V; Analog: 5.0V (Minimum AVDD is 3.6V)"
//
I don't know what value to use, looked everywhere on that datasheet and it's full of technical terms and proprietary names that make no sense
my headphones are: http://us.store.creative.com/Creative-Aurvana-Live-Headphones/M/B000ZJZ7OA.htm
important specifications:
Frequency Response: | 10Hz-30kHz |
Impedance: | 32ohms |
Sensitivity (1kHz): | 103dB/mW |
How can i approximate the decibels of the sound it produces?
I tried to use this guide but it's just impossible: http://www.head-fi.org/t/586490/approximating-headphone-volume-output-db
can someone help me figure this out?