From nobody Wed Sep 29 03:56:02 2021 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 84F9717D944D for ; Wed, 29 Sep 2021 03:56:09 +0000 (UTC) (envelope-from pete@nomadlogic.org) Received: from mail.nomadlogic.org (mail.nomadlogic.org [66.165.241.226]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "mail.nomadlogic.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4HK2br44jPz3tcC for ; Wed, 29 Sep 2021 03:56:05 +0000 (UTC) (envelope-from pete@nomadlogic.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nomadlogic.org; s=04242021; t=1632887763; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=7WTJQeUsMfEesroD6MXIXWLbVP8tLGv7x258w4Qaor0=; b=uE/upZDX4TCPXPopmPgZMvXCV16uieBdEVMfBsW62nVuGg/UKax9zIDzyifntEtTjpwMFN YLPfK7/oY+Hd1lk/ZOIi3v+wSQHXKE/LKiwemRG1DMkjRG7pC/dmibUvbi/EabFDCDUr7K IYy7k+2Nk4rClOsAYiOcU5alDXO80Qw= Received: from [192.168.1.160] (cpe-24-24-163-126.socal.res.rr.com [24.24.163.126]) by mail.nomadlogic.org (OpenSMTPD) with ESMTPSA id 22f0cda3 (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO) for ; Wed, 29 Sep 2021 03:56:02 +0000 (UTC) Subject: microphone issues - distorted audio To: freebsd-multimedia@FreeBSD.org Message-ID: <0089d0bd-a948-cff3-1cce-518f65a8bb57@nomadlogic.org> Date: Tue, 28 Sep 2021 20:56:02 -0700 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 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=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US X-Rspamd-Queue-Id: 4HK2br44jPz3tcC X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=nomadlogic.org header.s=04242021 header.b="uE/upZDX"; dmarc=pass (policy=quarantine) header.from=nomadlogic.org; spf=pass (mx1.freebsd.org: domain of pete@nomadlogic.org designates 66.165.241.226 as permitted sender) smtp.mailfrom=pete@nomadlogic.org X-Spamd-Result: default: False [-4.00 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[nomadlogic.org:s=04242021]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; R_SPF_ALLOW(-0.20)[+mx]; MIME_GOOD(-0.10)[text/plain]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-multimedia@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; DKIM_TRACE(0.00)[nomadlogic.org:+]; DMARC_POLICY_ALLOW(-0.50)[nomadlogic.org,quarantine]; NEURAL_HAM_SHORT(-1.00)[-0.999]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:29802, ipnet:66.165.240.0/22, country:US]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[] Reply-To: pete@nomadlogic.org From: Pete Wright via freebsd-multimedia X-Original-From: Pete Wright X-ThisMailContainsUnwantedMimeParts: N hello, i have the following configuration for my audio system on current/amd64: $ cat /dev/sndstat Installed devices: pcm0: (play) pcm1: (play) pcm2: (play) pcm3: (play) pcm4: (play) pcm5: (play/rec) default pcm6: (play/rec) pcm7: (rec) No devices installed from userspace. I am having issues with recording audio, using both my Realtek ALC892 as well as via my USB webcam (pcm7).  in both cases the audio sounds very distorted, if i talk into the microphone my voice is very distorted almost mechanical sound.  it is interesting that i get the same experience with both my ALC892 and USB audio device.  I've also tried adjusting various mixer settings, and adjusted my input gain to no avail.  I'm kind of at a loss here to figure out what my next debugging steps should be - any pointers? I've uploaded an example mp3 of what I'm getting here: https://www.nomadlogic.org/audio-sample.mp3 The clicking noise is me snapping my fingers in front of the mic. -pete -- Pete Wright pete@nomadlogic.org @nomadlogicLA