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4.4.2.
Stereo operation
Version C always processes audio on the left and the right channels
independently. It can use either stereo or mono WAV files. If a mono file is used
the same impulse is loaded on both channels. Unlike version 1, version C does
not alter the stereo imaging in any way.
4.4.3.
Tone Controls
Version C features an extra filter emulating the general behavior of the tone stack
of a guitar amp. The Low and High controls are used to increase the level in their
respective frequency bands, while the Mid control is used to set the general level
of the filter, the same way some classic tube amps handle EQ’ing.
The cutoff frequency for the High and Low bands can also be adjusted. This
allows “voicing” of the EQ to various tone stack colors.
To flatten the EQ the following settings should be used:
- Low: 0.0
- Mid: Any value. In this setting the Mid becomes a general level control.
- High: 0.0
5. Managing Impulse Response Files
5.1.
SD Card and File Format
The EPSi handles SD Cards formatted with either FAT16 or FAT32 file systems.
Inserting a card with a different format will trigger an error message. SDHC
Cards are currently not supported.
Impulse response files are 44.1 KHz Wave Files with either 16 or 24 bit depth.
Trying to load files that do not match this specification will trigger an error
message.
5.2.
EPSi “EPDA” Folder
The Epsi looks for files in a specific folder on the root directory of the SD Card
called “EPDA”. If that folder does not exist, the EPSi reports an error. All files to
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