4ms Sampler Kullanıcı Kılavuzu - Sayfa 18

Kayıt Ekipmanları 4ms Sampler için çevrimiçi göz atın veya pdf Kullanıcı Kılavuzu indirin. 4ms Sampler 20 sayfaları.

only legitimate purpose for this mode is to match colors between two different modules or to make

minor adjustments in relative brightness between buttons on the same module.

Rebuilding the Index File

The Sampler keeps track of the name of the sample file assigned to each bank/slot in a file called

sample_index.dat (aka "the index file"), located in the _Sampler.system folder. If you wish to revert the

Sampler to the factory organization, there is a factory original file located in a folder within the system

folder, follow the instructions in the "How To" text file in that folder.

If you wish to clear all file organization, you can simply delete the index file (back it up first, please!).

You can update the Sampler firmware by playing a special audio file into the Record jack. When new

firmware versions are released, the firmware audio files can be downloaded at

https://4mscompany.com/sampler

1. To enter bootloader mode, power off the Sampler and connect a computer or smart phone

audio output to the Left Record jack. Either a stereo or mono cable is fine. Connect the Out

Right jack to an amp/speakers so you can listen.

2. Set the computer/phone's volume to 50%. You may need to adjust it up or down if this is too

loud or quiet (see step 6). Unlike other 4ms modules, the Sampler's bootloader is designed to

work with consumer line-level signal (a peak-to-peak voltage of a little under 1V is ideal, or

-10dbV). Turn off all audio notifications that might interrupt playback.

3. Depress the Bank and Reverse buttons while powering on the Sampler. When you see either

button blink, release the buttons.

4. If the Reverse and Play buttons are blinking red, press the Play button. Play will start blinking

slowly (twice per second) to indicate the module is now ready to receive firmware.

5. Begin playing the file. Immediately you should see Bank turn on and Play and Reverse start

flashing blue, white, cyan, and/or purple. Do not interrupt the process!

6. The color of the Bank button tells you if the audio is too loud or quiet. Green is the ideal

volume. Cyan, blue, or off indicates the audio is too quiet. Yellow or red indicates it's too loud.

7. If there's an error, Play and Reverse will blink red rapidly. The Bank button will continue to

indicate the audio level, so this is a good time to verify the level is ideal and adjust the output

level as needed. Verify the cable is not loose, all sounds/vibrate/notifications are off, and that

you have downloaded the audio file completely (avoid streaming or playing from the browser).

Stop the audio file, reset it back to the start, and tap the Play button to reset. The Inf. Hold

button should blink slowly. Play the file from the beginning again.

8. If the file loads successfully, Play and Reverse will blink in a rainbow pattern. Press Play start.

The open-source licensed source files (in C++, for compiling with arm-none-eabi-gcc) can be found at

https://www.github.com/4ms/sampler

To view the firmware version, power on the Sampler with an SD Card installed. When startup is

complete (all lights stop blinking), remove the SD Card and insert it into a computer. Open the file

named "__Sample List__.html". The firmware version is written at the top of the file. 

Page