4ms Company WAV Recorder Benutzerhandbuch - Seite 9

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Using the WAV Recorder as a Pre-amp

Since the WAV Recorder can provide a wide range of gain or attenuation to stereo signals, it can also

be used as pre-amp to interface external equipment with Eurorack modules.

Patch any line-level, headphone-level, or modular-level signal into the IN jacks and turn the Gain knob

until you see some signal but no clipping. The signal on the OUT jacks will now be at standard

Eurorack audio signal levels and can be patched to any other Eurorack module.

For example, if you wanted to use your Eurorack modular system to process an online live stream from

your smart phone, you could patch the phone directly into the Left IN jack using a mono or stereo

cable. (If you want to get a stereo signal from the smart phone, use a stereo-to-mono adaptor and

patch into the Right IN jack as well.) Turn the volume up on the smart phone, and turn the Gain knob

so that you see some blue lights. You can now patch the OUT jacks to any other module that works

with normal Eurorack audio signals.

Note: The WAV Recorder does not work with microphones that require voltage from the pre-amp.

Busy Light

The microSD card is safe to remove if you stop recording and wait until the Busy light turns off. If

you're in Playback mode and not currently playing anything, it's also safe to remove the card. It's not

safe to remove it while Paused (you'll lose the file you recorded).

You can corrupt the files on your microSD card if you pull it out while the Busy light is on. This is similar

to unplugging a USB thumb drive or external hard drive from your computer while copying files. You

might get lucky and keep your files; but, if the card starts to act weird, do a disk repair or "first aid"

using Disk Utility on MacOS or fsck (or something similar) on Linux. After repairing the disk, copy all

your files off, format it in ExFAT, and copy your files back on. Always keep backups of important files!

Checking for Free Space

You can check the amount of free space on the card by holding the button down

for 2 seconds while in Record mode. An animation of the lights will display while

Hold 2 sec

Record

the card is being scanned. Once the lights stop animating, the number of lights

that are off will show how many hours of free space you have available. If there

Playback

are 8 or more hours of recording time available, all the lights will turn off when the

animation stops.

For example, let's say you hold down the button and the animation stops with five lights on and three

off (see diagram below):

The fact that there are three lights off means that there are three to four hours of

Clip

recording time available on the card.

Changing recording settings will change the amount of time available. If you went

into System Mode and changed to mono recording, the next time you check for

free space it will show six lights off (six hours mono = three hours stereo).

Checking for free space serves a dual purpose: if you insert a microSD card into the module while it's

powered on, the card will need to be mounted before it can be used for recording or playback.

Checking for free space will mount the card safely and report the free space available. See Hot

Swapping (next section).

If the card is ever detected as being full (or having less than 50MB in available storage), all 8 lights will

flash brightly twice when you press record. The lights will keep flashing every 5-10 seconds until you

flip to Playback mode or insert a new card and refresh it.

Note: The WAV Recorder will always leave about 50MB available for swap space.

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