From owner-freebsd-current@freebsd.org Sun Sep 13 09:24:53 2020 Return-Path: Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 64AB33D2A8F; Sun, 13 Sep 2020 09:24:53 +0000 (UTC) (envelope-from hps@selasky.org) Received: from mail.turbocat.net (turbocat.net [IPv6:2a01:4f8:c17:6c4b::2]) (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 did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4Bq3x04XQZz3gry; Sun, 13 Sep 2020 09:24:52 +0000 (UTC) (envelope-from hps@selasky.org) Received: from hps2020.home.selasky.org (unknown [178.17.145.105]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail.turbocat.net (Postfix) with ESMTPSA id A1FE2260276; Sun, 13 Sep 2020 11:24:43 +0200 (CEST) Subject: Re: USB sound devices with FreeBSD-CURRENT To: Graham Perrin , FreeBSD CURRENT , FreeBSD questions References: <9551111b-5dfb-c42b-6f58-81f6c8b8bbd1@gmail.com> From: Hans Petter Selasky Message-ID: Date: Sun, 13 Sep 2020 11:24:13 +0200 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <9551111b-5dfb-c42b-6f58-81f6c8b8bbd1@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 4Bq3x04XQZz3gry X-Spamd-Bar: -- X-Spamd-Result: default: False [-2.83 / 15.00]; RCVD_TLS_ALL(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; R_SPF_ALLOW(-0.20)[+a:mail.turbocat.net]; NEURAL_HAM_LONG(-1.00)[-1.002]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[selasky.org]; ARC_NA(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; NEURAL_HAM_SHORT(-0.49)[-0.494]; NEURAL_HAM_MEDIUM(-1.04)[-1.038]; FREEMAIL_TO(0.00)[gmail.com,freebsd.org]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:24940, ipnet:2a01:4f8::/29, country:DE]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[freebsd-current,freebsd-questions] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 13 Sep 2020 09:24:53 -0000 On 2020-09-13 11:21, Graham Perrin wrote: > > 1. Chromium simply does not play AV content e.g. > – after > a click to play, there's a moment of visual motion but no playback > > 2. if Firefox media.cubeb.backend set to oss then behaviour is the same > as Chromium > > 3. if Firefox media.cubeb.backend is not set (audio backend defaults to > pulse-rust) then playback occurs through IDT 92HD81B1X (Analog) – not USB. Try to configure a smaller audio buffer size in virtual_oss . Sometimes devices request a very small audio buffer . --HPS