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