2010/2/17 James Courtier-Dutton james.dutton@gmail.com
On 16 February 2010 23:56, Lennart Poettering mznyfn@0pointer.de wrote:
The reason I was asking how Jaroslav chose the 0dB position for his measurements was purely because I wanted to do my own measurements for that Aureon card. The dbmeasure tool I wrote for stuff like that puts 0dB at max amplification, however Jaroslav didn't, so I was wondering how he chose 0dB then.
Lennart
I think the digital side is clear. So I will not go into that.
The problem is at the digital side , The range between -inf dB and -48dB / -96dB software atten is lost during the conversion of the floating format format to S16_LE or S32_LE ( native format supported by hardware driver )
i.e. the bottom part of the pulseaudio volume control cannot be used