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[79.66.147.78]) by smtp.gmail.com with ESMTPSA id k4sm15793106wrx.51.2020.09.13.07.13.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 13 Sep 2020 07:13:54 -0700 (PDT) Subject: Re: USB sound devices with FreeBSD-CURRENT To: Hans Petter Selasky , FreeBSD CURRENT , FreeBSD questions References: <9551111b-5dfb-c42b-6f58-81f6c8b8bbd1@gmail.com> From: Graham Perrin Message-ID: <7731b641-687c-03e1-60b6-11f21595f13c@gmail.com> Date: Sun, 13 Sep 2020 15:13:53 +0100 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US X-Rspamd-Queue-Id: 4BqBLY3QjCz4Dkk X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.69 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36:c]; FREEMAIL_FROM(0.00)[gmail.com]; RCVD_COUNT_THREE(0.00)[3]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; NEURAL_HAM_SHORT(-0.59)[-0.593]; RECEIVED_SPAMHAUS_PBL(0.00)[79.66.147.78:received]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; MID_RHS_MATCH_FROM(0.00)[]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.08)[-1.078]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; NEURAL_HAM_LONG(-1.02)[-1.019]; MIME_GOOD(-0.10)[text/plain]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::42f:from]; RCVD_TLS_ALL(0.00)[]; MAILMAN_DEST(0.00)[freebsd-questions,freebsd-current] 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 14:13:58 -0000 Now with On 13/09/2020 10:24, Hans Petter Selasky wrote: > 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 Now with virtual_oss and sndiod disabled (starting them when required with onestart), with the buffer size reduced from 1024 to 256, ---- root@momh167-gjp4-8570p:~ # head -n 55 /usr/local/etc/rc.d/virtual_oss | grep -v \# . /etc/rc.subr name=virtual_oss desc="Virtual OSS device manager" rcvar=${name}_enable start_precmd="${name}_precmd" start_cmd="${name}_start" stop_cmd="${name}_stop" virtual_oss_default_args="\   -T /dev/sndstat \   -S \   -i 8 \   -C 2 -c 2 \   -r 48000 \   -b 24 \   -s 256 \   -f /dev/dsp0 \   -c 2 \   -d dsp \   -t dsp.ctl" configs= load_rc_config $name root@momh167-gjp4-8570p:~ # service virtual_oss onestart ; service sndiod onestart ; service virtual_oss onestatus ; service sndiod onestatus ; cat /dev/sndstat Starting Virtual OSS config dsp ... done Starting sndiod. virtual_oss is running as pid 5990. sndiod is running as pid 6006. Installed devices: pcm0: (play) default pcm1: (play/rec) pcm2: (play/rec) pcm3: (rec) pcm4: (play/rec) No devices installed from userspace. root@momh167-gjp4-8570p:~ # ---- I get visual playback but nothing audible at the USB headset or analogue loudspeakers. I see device buffer sizes below but I don't know how to use those to determine a usable setting for -s in /usr/local/etc/rc.d/virtual_oss From dmesg : ---- ugen0.5: at usbus0 uhid1 on uhub2 uhid1: on usbus0 uaudio0 on uhub2 uaudio0: on usbus0 uaudio0: No playback. uaudio0: Record[0]: 48000 Hz, 1 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio0: Record[0]: 44100 Hz, 1 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio0: Record[0]: 32000 Hz, 1 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio0: Record[0]: 22050 Hz, 1 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio0: Record[0]: 16000 Hz, 1 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio0: Record[0]: 11025 Hz, 1 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio0: Record[0]: 8000 Hz, 1 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio0: No MIDI sequencer. pcm3: on uaudio0 uaudio0: No HID volume keys found. ugen0.6: at usbus0 uhub8 on uhub2 uhub8: on usbus0 uhub8: MTT enabled uhub8: 4 ports with 4 removable, self powered ugen0.7: at usbus0 uaudio1 on uhub8 uaudio1: on usbus0 uaudio1: Play[0]: 48000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio1: Play[0]: 44100 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio1: Play[0]: 22050 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio1: Play[0]: 16000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio1: Play[0]: 11025 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio1: Play[0]: 8000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio1: Record[0]: 48000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio1: Record[0]: 44100 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio1: Record[0]: 22050 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio1: Record[0]: 16000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio1: Record[0]: 11025 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio1: Record[0]: 8000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio1: No MIDI sequencer. pcm4: on uaudio1 uaudio1: HID volume keys found.