From mboxrd@z Thu Jan 1 00:00:00 1970 From: pavel@ucw.cz (Pavel Machek) Date: Thu, 2 Mar 2017 15:28:22 +0100 Subject: Microphone gain on N900 In-Reply-To: <4435ddd2-ca0e-b05d-727d-9f38416c0f97@bitmer.com> References: <20170226202831.GA31405@amd> <201702272053.37882@pali> <4435ddd2-ca0e-b05d-727d-9f38416c0f97@bitmer.com> Message-ID: <20170302142822.GA30427@amd> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi! > >> v4.10 works quite nicely on N900, but I still have problems with > >> audio. Even GSM calls would be usable, if I had reasonable volume on > >> microphone and speaker... but I don't. > >> > >> Both speaker and microphone are too quiet. I can get louder output by > >> plugging headset -- good. I can hear the other side nicely, but am > >> too quiet for them. Unfortunately, even if I plug in wired headset, > >> internal microphone is still used. > >> > For me these settings provide reasonable playback and capture volumes > using v4.10.1: > > amixer -D hw:0 set PCM 100% > amixer -D hw:0 set 'Line DAC' 80% on > amixer -D hw:0 set 'Line' on > amixer -D hw:0 set 'Left Line Mixer DACL1' on > amixer -D hw:0 set 'Right Line Mixer DACR1' on > amixer -D hw:0 set 'Jack Function' 'Headphone' > amixer -D hw:0 set 'TPA6130A2 Headphone' 80% > > amixer -D hw:0 set 'Jack Function' 'Headset' > amixer -D hw:0 set 'AGC' off > amixer -D hw:0 set 'Input Select' 'ADC' > amixer -D hw:0 set 'Left PGA Mixer Line1L' on > amixer -D hw:0 set 'Left Line1L Mux' 'differential' > amixer -D hw:0 set 'Right PGA Mixer Line1L' on > amixer -D hw:0 set 'Right Line1L Mux' 'differential' > amixer -D hw:0 set 'ADC HPF Cut-off' '0.0045xFs' 'disabled' > amixer -D hw:0 set PGA 50% on > amixer -D hw:0 cset iface=MIXER,name='PGA Capture Switch',index=0 on This seems to correspond to volumes I have had before. They are enough for phone call in quiet environment, but not really for normal usage. Do you have settings where microphone on wired headset works? Thanks, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 181 bytes Desc: Digital signature URL: