Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[Strale]

Sansui G-901DB receiver has analog input sensitivity of 150mV. Lynx L22 (24-bit soundcard) has analog output voltage of 2V when 50Hz 0dB sinewave is played (trim of -10dBV is applyed to analog out via Lynx mixer). Only way to reduce these 2V into 150mV for proper functioning of analog receiver is to use J River internal volume control set to 50% (-25dB). Windows (Lynx mixer) system volume is set to 100%. I am using ASIO and FLAC files (16bit 44.1kHz). Is there any loss in audio quality because J River internal digital volume (50%) is applyed? I am not using any other DSP. I read about J River 64-bit audio path but I'm still not sure if there is any quality loss when using J River internal volume control. In other words, by such volume control does bit perfect can be achieved? Thanks

[Matt]

JRiver uses a 64bit audio path, and the volume you get with it will be the best possible.

The term "bit-perfect" is a little ambiguous.  If you turn sound down, you're changing the sound so the bits have to change.  However, from a 16-bit source you haven't lost any actual information until after -48dB with 24-bit output.  And after that, you can't hear the bits you're losing because the volume is so low.

More here:
http://wiki.jriver.com/index.php/Volume
http://wiki.jriver.com/index.php/Audio_Bitdepth