Date: Tue, 24 Apr 2018 05:37:01 -0700 (PDT) From: Robroy Gregg <robroy@bigbuckingunicorn.com> To: AikiZen <aikizen@ovh.fr> Cc: freebsd-questions@freebsd.org Subject: Re: audiophile sound on FreeBSD ? Message-ID: <alpine.BSF.2.20.1804240510450.33786@beak.h.net> In-Reply-To: <20180424113308.52f35f93@WorkMachine> References: <20180423224242.7299f430@WorkMachine> <20180424113308.52f35f93@WorkMachine>
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Good day Aiki,
On Tue, 24 Apr 2018, AikiZen wrote:
> I would like install FreeBSD on my Dell Pr?cision M4700. It's a laptop,
> no possible to change sound card...
...
> I just want listening my encoded audio CD and record, may be, my music.
Aiki, FreeBSD forums member Phishfry recommended an M-Audio "MobilePre
USB" device to me for this purpose. He found one on eBay for $35 and sent
me the link.
I've used it with audacity on three (very different) computers running
11.1-RELEASE, and it worked really well on all of them. I now have two
microphones attached, and it mixes them together in to one mono channel
for audacity to record.
A sticker on the bottom of this device reads:
PID/Ver: 200F
Firmware: V1.03
Date: 11-2008
PN: AU02-071G1
SN: 071G158B03130
On one of my computers it was necessary for me to manually select the
recording source, just because it wasn't the default, in audacity. And I
did toy around with mixer(1) some. But other than that, it just worked.
I don't have enough experience with listening for sound quality to really
comment on that aspect of it, but it sounds great to me. I use it almost
every single day, and the idea of upgrading to anything fancier hasn't
really crossed my mind.
It also tends to want gain maxed out with my SM58 microphones, or at 75%
or so; the device doesn't seem to support enough amplification to exceed
what's required by much, if any. 'not sure why, but this seems to be less
noticable with two microphones attached than with only one.
It shows up like this when I plug it in:
ugen0.7: <M Audio MobilePre> at usbus0
uaudio0 on uhub4
uaudio0: <MobilePre> on usbus0
uaudio0: Play: 48000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Play: 44100 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Play: 32000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Play: 24000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Play: 22050 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Play: 16000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Play: 11025 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Play: 8000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record: 48000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record: 44100 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record: 32000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record: 24000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record: 22050 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record: 16000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record: 11025 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record: 8000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: No MIDI sequencer.
pcm2: <USB audio> on uaudio0
uaudio0: No HID volume keys found.
And it shows up like this also (it's the "USB audio" entry):
% cat /dev/sndstat
Installed devices:
pcm0: <NVIDIA (0x001c) (HDMI/DP 8ch)> (play)
pcm1: <NVIDIA (0x001c) (HDMI/DP 8ch)> (play)
pcm2: <USB audio> (play/rec) default
No devices installed from userspace.
Happy days to you Aiki,
Robroy
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