Preparing your files, Analyzing files, How to analyze files – Rane MP 4 Manual 1.9.2 User Manual
Page 12: About corrupt files, Set auto-bpm, The offline player, File management, Rescan id3 tags, Relocate lost files

RANE MP 4
FOR
SERATO SCRATCH LIVE
•
OPERATOR’S MANUAL
1.9.2
12
SET auTO-Bpm
If this option is checked, building overviews will
If this option is checked while analyzing files, 
Scratch Live will calculate the estimated tempos 
of your files. If Scratch Live is confident that the 
auto-BPM estimate for a file is accurate, it will be 
written to an ID3 tag* in the file. The auto-BPM 
function will not be applied if the track already 
contains BPM information. To re-analyze these 
files and use auto-BPM or auto gain on them, 
drag them onto the analyze files button. If you 
know your files BPM will fall within a certain 
range, use the range drop down to avoid double 
or half value BPMs being calculated.
*Id3 tags contain data about your tracks 
and are saved inside the files themselves. 
Genre, track name and artist are examples 
of common tag information. 
SEE “EdITING Id3
ThE OFFLINE pLayER
The offline player is available when Scratch Live 
hardware is not connected, and outputs through 
the current default audio device. Load a track to 
the offline player by dragging and dropping onto 
the deck, or pressing shift+left arrow. If the end 
of the loaded track is reached, the next track in 
the current playlist is played automatically.
The offline player is a useful tool for preparing 
crates, auditioning tracks, and setting cue and 
loop points. 
pREpaRING yOuR
FILES
aNaLyzING FILES
Before you play your music in Scratch Live, It is 
important to first analyze your files.
 The analyze files function processes the 
songs in your library to detect file corruption, 
saves the waveform overview to an ID3 tag*, and 
calculates auto-gain and BPM values.
hOW TO aNaLyzE FILES
To analyze files start Scratch Live with the 
hardware disconnected. On the left side of the 
main screen, you will notice a button labeled 
“analyze files”. Click this to automatically build 
the overviews for all the tracks in your library. 
TIp: you can drag and drop individual folders, 
crates or files onto this button to force the 
building of overviews at any time.
aBOuT CORRupT FILES
If Scratch Live detects a corrupt file it 
will tag it with a corrupt file icon:
 It is very important that you delete 
ANY corrupt files from your library as they can 
cause Scratch Live to crash regardless if you 
play the file or not.
paGE 23 aNd “CORRupT FILE dESCRIpTIONS aNd
FILE maNaGEmENT
Located in the files pane are two buttons, rescan 
ID3 tags, and relocate lost files. Use these tools 
for ongoing file and library management.
RESCaN Id3 TaGS
Click this button to force Scratch Live to re-read 
all file tags. Alternatively, you can drag and drop 
files, folders, or drives onto the rescan id3 tags 
button from the files pane. This will only scan the 
files that you drag and drop, resulting in much 
faster processing.
TIp: Rescanning the tags is a handy way to 
identify all the files that Scratch Live can’t find 
(for example if the files have been altered or 
moved). These tracks will show up red in the 
main track list, with an exclamation mark in 
the status column. you can sort by the status 
column to group all these tracks together.
RELOCaTE LOST FILES
This feature finds music and folders on your 
computer that you have either moved or altered.
1. Clicking the relocate lost file button to search 
all your drives (internal and external) for files 
currently marked as not found in your library.
2. When this process is complete, your Scratch
Live library will be updated with the new 
location of your files.
TIp: drag and drop files, folders, or drives 
onto the relocate lost files button from the 
files pane. This is useful if you know the 
location of your files, as it only scans the drag 
and drop location, with faster relocation.
