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Mat<br>
<br>
Thank you for your time and effort to reply:<br>
<br>
<div class="moz-cite-prefix">Den 05.10.2021 21:26, skrev mat via
Cin:<br>
<br>
........snip<br>
</div>
<blockquote type="cite"
cite="mid:df1cf716551fa9c1a7ad92d144cfd232e8701021.camel@zap.a2000.nl">
<pre class="moz-quote-pre" wrap="">
=== Terje:=====
5) I am unsure how to practically go from here to record the Audio music files.
================
8) Which tab/buttons for input in Audiacity (possibly tape/noise
filters) - I could not find the PCM2902 input or see any sound response
here
I suggest to try Audacity first. In Edit->Preferences->Devices,
Host Alsa, playback device pulse, recording default (or pulse), 1 or 2
channels as desired.
Edit->Preferences->Recording, record on new track (each time you start
a recoding you get a new audio track).
Then, on the main menu, click on the filed that says "click to start
monitoring", this will send input to output, so if your output device
is line out it will come out there.
For recording, the red button starts recording, the black square button
stops.
The advantage of using Pulse is that pavucontrol will show recoding
applications, you should also see the signal coming in when an
application is recording (has opened the input channel). This can be
seen on the Input Devices tab.
You don't see the device as such, it is "abstracted" by both Also and
then PulseAudio.
=== Terje:=====
9) Would it be reasonable to record and archive in lossless FLAC format
and afterwards convert with ffmpeg? to smaller files format of good
quality, typical MP3 at 320 kbps (for car usb player) and MP4A for home
HiFi?
================
FLAC is very good, it itself is lossless. Audacity can export to a
variety of formats (File->Export), I usually use mp3 or wav.
Note that if you do a lot of editing on a recording is it better to
save the project, that avoid converting back-and-forth between flac and
the interanl Audacity 32 bit floats.
Audicity is a good editor, you record first, save the original
recoding, then apply filters/effects/cuts etc . Like CinGG, keep the
original intact.
Offhand, I'd say you must have extremely good hearing to hear
differences between MP3 320kbps and the original. For cars, I myself
would not go above 128 kbps. MP3 at 320 kbps is much better than most
home HiFi. And if the source is not digital, (but tape or cassette),
128 kpbs MP3 is already much better than the source material.
</pre>
</blockquote>
........snip<br>
<br>
I understand and aggree with you regarding MP3 128 kbps for tape and
cassette sources. Rather than highest bit-rate often variable
bit-rate is used.<br>
<br>
I just wonder what is the original recording format used by
Audiacity, i.e something compatible for playback by other programs?<br>
<br>
In the meantime, and before I continue with Audiacity, I recorded a
few simple test clip (from my Audio CD through UFO202) with two
small audio recording programs. <br>
<br>
Of interest regarding MP3 format, "gnome-sound-recording" looks to
apply 320 kbps Variable, while "audio-recording" rather uses 48 kbps
Variable (tool dependent). audio-recorder describes flac, mp3, m4a
(aac) 44khz) as "cd-quality".<br>
<br>
<br>
File format output as follows:<br>
=======================<br>
<font face="monospace"><font size="+1"><b>gnome-sound-recorder</b></font><br>
<br>
~/Recordings> file *.*<br>
<br>
Clip-5.ogg: Ogg data, Vorbis audio, stereo, 44100 Hz, ~112000
bps, created by: Xiph.Org libVorbis I<br>
Clip-6.flac: FLAC audio bitstream data, 16 bit, stereo, 44.1 kHz,
length unknown<br>
Clip-7.mp3: Audio file with ID3 version 2.3.0, contains:MPEG
ADTS, layer III, v1, 320 kbps, 44.1 kHz, JntStereo<br>
<br>
<br>
~/Recordings> mediainfo *.* | egrep 'name|Format|bit rate'<br>
<br>
Complete name : Clip-5.ogg<br>
Format : Ogg<br>
Overall bit rate mode : Variable<br>
Overall bit rate : 103 kb/s<br>
Track name :
/home/terje/Recordings/Clip 5<br>
Format : Vorbis<br>
Format settings, Floor : 1<br>
<br>
Complete name : Clip-6.flac<br>
Format : FLAC<br>
Format/Info : Free Lossless Audio
Codec<br>
Overall bit rate mode : Variable<br>
Track name :
/home/terje/Recordings/Clip 6<br>
Format : FLAC<br>
Format/Info : Free Lossless Audio
Codec<br>
<br>
Complete name : Clip-7.mp3<br>
Format : MPEG Audio<br>
Overall bit rate mode : Variable<br>
Track name :
/home/terje/Recordings/Clip 7<br>
Format : MPEG Audio<br>
Format version : Version 1<br>
Format profile : Layer 3<br>
Format settings : Joint stereo<br>
<br>
================<br>
<br>
<font size="+1"><b>audio-recorder</b></font><br>
<br>
~/Lydopptak> file *.*<br>
2021-10-05-21:27:18.flac: FLAC audio bitstream data, 16 bit,
stereo, 44.1 kHz, 4428081 samples<br>
2021-10-05-21:42:41.mp3: Audio file with ID3 version 2.3.0,
contains:MPEG ADTS, layer III, v1, 48 kbps, 44.1 kHz, JntStereo<br>
2021-10-05-21:44:29.wav: RIFF (little-endian) data, WAVE audio,
Microsoft PCM, 16 bit, stereo 44100 Hz<br>
2021-10-05-21:46:39.wav: RIFF (little-endian) data, WAVE audio,
Microsoft PCM, 16 bit, mono 22050 Hz<br>
<br>
<br>
~/Lydopptak> mediainfo *.* | egrep 'name|Format|bit rate'<br>
<br>
Complete name :
2021-10-05-21:27:18.flac<br>
Format : FLAC<br>
Format/Info : Free Lossless Audio
Codec<br>
Overall bit rate mode : Variable<br>
Overall bit rate : 1 145 b/s<br>
Format : FLAC<br>
Format/Info : Free Lossless Audio
Codec<br>
<br>
Complete name : 2021-10-05-21:42:41.mp3<br>
Format : MPEG Audio<br>
Overall bit rate mode : Variable<br>
Overall bit rate : 31.8 kb/s<br>
Format : MPEG Audio<br>
Format version : Version 1<br>
Format profile : Layer 3<br>
Format settings : Joint stereo / MS
Stereo<br>
<br>
Complete name : 2021-10-05-21:44:29.wav<br>
Format : Wave<br>
Overall bit rate mode : Constant<br>
Overall bit rate : 1 411 kb/s<br>
Format : PCM<br>
Format settings : Little / Signed<br>
<br>
Complete name : 2021-10-05-21:46:39.wav<br>
Format : Wave<br>
Overall bit rate mode : Constant<br>
Overall bit rate : 353 kb/s<br>
Format : PCM<br>
Format settings : Little / Signed <br>
</font><br>
------------ <br>
Terje<br>
<br>
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