From nobody Mon May 05 17:02:08 2025 X-Original-To: freebsd-multimedia@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4ZrnrQ2NRVz5vlkj for ; Mon, 05 May 2025 17:02:14 +0000 (UTC) (envelope-from christos@freebsd.org) Received: from margiolis.net (mail.margiolis.net [95.179.159.8]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA512) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4ZrnrP5hm1z3x9g for ; Mon, 05 May 2025 17:02:13 +0000 (UTC) (envelope-from christos@freebsd.org) Authentication-Results: mx1.freebsd.org; none DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; s=default; bh=aT3gEZp4LNKh wIHFpBoitVXXYrElLT1C548EDOLkD8w=; h=in-reply-to:references:subject:cc: to:from:date; d=margiolis.net; b=mkToQalDbUyqMOgYA5ABPO0u0HlUmGvZ+Q5tc V9n9BpakJiEShzcyIwQNymIFfllxtoo3A5fLNAnEnAPz759u7cB/zhF0FVBakzFq9Dp0JK Dw77goSPew9sdTXME3r9bqmrV+sbYPey2BZPG/wI1+NtP9h20mKvfKWy+dPzUJ/I= Received: from pleb (public-gprs243542.centertel.pl [31.60.98.151]) by margiolis.net (OpenSMTPD) with ESMTPSA id 567eb994 (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Mon, 5 May 2025 11:02:10 -0600 (MDT) Date: Mon, 5 May 2025 19:02:08 +0200 From: Christos Margiolis To: "G. Paul Ziemba" Cc: freebsd-multimedia@freebsd.org Subject: Re: 13->14 microphone routing/mixing issues Message-ID: References: List-Id: Multimedia discussions List-Archive: https://lists.freebsd.org/archives/freebsd-multimedia List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-multimedia@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Queue-Id: 4ZrnrP5hm1z3x9g X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:20473, ipnet:95.179.144.0/20, country:US] X-Spamd-Bar: ---- G. Paul Ziemba wrote: > Hi, > > I upgraded from 13-stable to 14-stable last week, which seems to have > changed some aspects of the audio system. > > My microphone is now being played out the speaker, resulting in > feedback if the microphone gain is above zero. I read the mixer(8) > man page but I don't understand what is wrong. > > Although setting the microphone gain to zero quells the feedback, > doing so also means there is no microphone signal toward, e.g., > teleconference software in the web browser. > > How can I make the microphone usable again without feeding into the > speaker? > > Speakers and microphone are attached to the "rear analog" ports. > > % mixer -a > pcm0:mixer: on hdaa0 (play/rec) (default) > vol = 0.86:0.86 pbk > pcm = 1.00:1.00 pbk > speaker = 0.74:0.74 rec > line = 0.01:0.01 rec > mic = 0.00:0.00 rec src > mix = 0.74:0.74 rec > rec = 0.35:0.35 pbk > igain = 0.50:0.50 pbk > ogain = 1.00:1.00 pbk > pcm1:mixer: on hdaa0 (play/rec) > vol = 0.84:0.84 pbk > pcm = 1.00:1.00 pbk > speaker = 0.00:0.00 rec > rec = 0.35:0.35 pbk > igain = 0.00:0.00 pbk > ogain = 1.00:1.00 pbk > monitor = 0.67:0.67 rec src > pcm2:mixer: on hdaa0 (play) > vol = 1.00:1.00 pbk > pcm = 1.00:1.00 pbk > pcm3:mixer: on hdaa1 (play) > vol = 1.00:1.00 pbk > pcm = 1.00:1.00 pbk > > Thanks for your insights. After a quick search I do not see any change to ALC888 between 13 and 14. However I see your "igain" (input monitoring gain/level) is set to 0.50. What happens if you set it to 0? $ mixer igain.volume=0 Christos