Hacker Public Radio

Update to HPR 3507

hpr3507 :: USB Turntable fix and sound journey

record_capture_wav.sh #!/bin/bash echo "Record name?" read record echo "Which side is this?" read side arecord --device='hw:CARD=CODEC,DEV=0' --rate=96000 --channels=2 --vumeter=stereo --duration=1500 --format=dat --file-type wav $record"_Side_"$side.wav record_capture_flac.sh #!/bin/bash echo "Record name" read record echo "Which side is this?" read side arecord --device='hw:CARD=CODEC,DEV=0' --rate=96000 --channels=2 --vumeter=stereo --duration=1500 --format=dat --file-type wav - | flac - -o $record"_Side_"$side.flac

Used hw:CARD=CODEC,DEV=0 derived from 'arecord -L'

hw:CARD=CODEC,DEV=0 USB Audio CODEC, USB Audio Direct hardware device without any conversions

arecord manpage ... -f --format=FORMAT Sample format Recognized sample formats are: S8 U8 S16_LE S16_BE U16_LE U16_BE S24_LE S24_BE U24_LE U24_BE S32_LE S32_BE U32_LE U32_BE FLOAT_LE FLOAT_BE FLOAT64_LE FLOAT64_BE IEC958_SUBFRAME_LE IEC958_SUBFRAME_BE MU_LAW A_LAW IMA_ADPCM MPEG GSM SPECIAL S24_3LE S24_3BE U24_3LE U24_3BE S20_3LE S20_3BE U20_3LE U20_3BE S18_3LE S18_3BE U18_3LE Some of these may not be available on selected hardware The available format shortcuts are: -f cd (16 bit little endian, 44100, stereo) [-f S16_LE -c2 -r44100] -f cdr (16 bit big endian, 44100, stereo) [-f S16_BE -c2 -f44100] -f dat (16 bit little endian, 48000, stereo) [-f S16_LE -c2 -r48000] If no format is given U8 is used. -d, --duration=# Interrupt after # seconds. A value of zero means infinity. The default is zero, so if this option is omitted then the arecord process will run until it is killed. -t, --file-type TYPE File type (voc, wav, raw or au). If this parameter is omitted the WAVE format is used. ...

hpr2881 :: Automatically split album into tracks in Audacity

Changes as of 5-20-2022

• Old way : Select the entire track and select Analyze > Silence Finder
• Update : Select the entire track and select Analyze > Label Sounds

Label sounds menu

Click the thumbnail to see the full-sized image

Silence detection options

HowTo: Split MP3s by silence detection using mp3splt

https://blog.dornea.nu/2012/04/01/howto-split-mp3s-by-silence-detection-using-mp3splt/

mp3splt -s -p th=-40,min=6,rm

Parameters explanation:

'-s': silence mode; activate silence detection '-p': specify arguments for the silence mode 'th=-40': threshold level (dB) to be considered silence 'min=6': minimum number of seconds to be considered as splitpoint 'rm': remove silence from splitted files What worked for me

mp3splt -s -p th=-30,min=0.5,rm $1

Fix tracks not splitting

• Manually seek the silence in mplayer/mpv
• Note the silent areas
• Cut with ffmpeg ie.
  • ffmpeg -i track.flac -ss 00:03:05 -to 00:06:00 -acodec copy track-cut1.flac

References

How to rip vinyl in Manjaro
https://forum.manjaro.org/t/howto-rip-vinyl-lps-in-manjaro/83300

mp3splt
https://mp3splt.sourceforge.net

Man pages

https://mp3splt.sourceforge.net/mp3splt_page/documentation/man.html

https://manpages.ubuntu.com/manpages/xenial/en/man1/mp3splt.1.html

Youtube downloader

https://ytgram.com/en/youtube-video-downloader

Screen capture of youtube link download on YTGram

Click the thumbnail to see the full-sized image

Sample album

J̲o̲urney - D̲eparture̲ (Full Album) 1980

https://www.youtube.com/watch?v=eoG9U8n0dWo