Bill Unruh wrote: >> On 29/04/14 15:52, Balduin Waldmeister wrote: >>> So my question is whether it's possible to add the low impedance support >>> (16 - 32 ohm) to ALSA for use with the old STX? Currently it stops at >>> the normal gain setting (< 64 ohm). > > That has to do with the capabilities of the amplifier on board the sound card, > not the settings of the card. The amplifier needs to be able to deliver high > current and have a low output impedence-- ie it is a hardware issue. > Not at all sure what the impdence settings on the card would do.
The "impedance" setting just lowers the volume. (<300 Ω and <64 Ω are -6 dB and -18 dB.) I didn't think this was worth implementing in the Linux driver, but people whined until I did. It is certainly possible to add a fourth setting. Being charitable, this might not be a HiFi Voodoo stunt by Asus marketing, but an honest attempt at preventing unhealthily loud output levels ... Regards, Clemens ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
