Rockbox will ask for confirmation be for e deleting a file. Press Select. Delete Directory. Deletes the currently selected directory and all of the files and subdirectories.
Set As Backdrop. Set the selected bmp file as background image. The bitmaps need to. Open with. Runs a viewer plugin on the file. Normally, when a file is selected in Rockbox ,. Rockbox automatically detects the file type and runs the appropriate plugin.
The Open With function can be used to override the default action and select a. See section If used on a directory, the number of files and subdirectories. This option is not available for. This is the virtual keyboard that is used when entering text in Rockbox , for example. The virtual keyboard can be easily. More in for mation on how to. This chapter describes the Rockbox music database system.
Using the in for mation. The criteria the. More in for mation on how. The first time you use the database, Rockbox will scan your disk for audio files. This can. After the scan is finished you may be prompted to restart your player be for e you can.
The files in that directory and its subdirectories will be. Setting this to Yes loads the database to. Initialize Now You can for ce Rockbox to rescan your disk for tagged files by using the. Gather Runtime Data When enabled, rockbox will record how often and how long a. This in for mation can. Export Modifications This allows for the runtime data to be exported to the file. This is needed when database structures change, because new code cannot. Import Modifications.
If Auto Update is enabled this is per for med. The re is no option to turn off database completely. If you do not want to use it just. The items shown depend on your configuration — all items can be. Refer to section D page for details on how to. The peak meter can be displayed on the While Playing Screen and consists of several.
The bar: This is the wide horizontal bar. It represents the current volume value. The peak indicator: This is a little vertical line at the right end of the bar. It indicates. The clip indicator: This is a little black block that is displayed at the very right of the. Note: Note that the clip detection is not very precise.
The scale: Between the indicators of the right and left channel there are little dots. The se dots represent important volume values. The Playlist submenu allows you to view, save, search and reshuffle the current playlist. To change settings for the Playlist Viewer press Long Select while viewing the. Show Icons. This toggles display of the icon for the currently selected playlist entry and. Track Display.
This toggles between filename only and full path for playlist entries. See section 6 page 46 for. The menu entry is only shown if Gather Runtime In for mation is enabled. It allows. This info is known as meta data and. To access this. Delete the currently playing file. The file will be deleted but the playback of the file will. The Pitch Screen allows you to change the rate of playback i.
The rate value can be adjusted between. The rate can be changed in two modes: procentual and semitone. Initially, procentual.
In timestretch mode there are separate displays for pitch and speed, and each can be. The value of the rate, pitch and speed is not persistent, i.
However, the rate, pitch and speed in for mation will be. A playlist! One of the keys to getting the most out of Rockbox is understanding. In Rockbox , to Insert an item into a playlist means putting an item into a.
In Rockbox , to Queue a song means to put the song into a playlist and then. The only difference. The Playlist catalogue makes it possible to modify and create playlists that are. The re you will have two choices, Add to playlist adds the selected track or directory. Playlist command in the Playlists menu found in the Main Menu. The created. The Playlist Submenu is a submenu in the Context Menu see section 4. If there is no music currently playing,.
Rockbox will create a new dynamic playlist and put the selected track s into it. If there is music currently playing, Rockbox will put the selected track s into the current. The place in which the newly selected tracks are added to the playlist is. The Playlist Submenu can be used to add either single tracks or entire directories. Rockbox to include tracks in subdirectories as well as tracks in the currently-selected. Dynamic playlists are saved so resume will restore them exactly as they were be for e.
The Main Menu is the screen from which all of the Rockbox functions can be accessed. This is the first screen you will see when starting Rockbox. To return to the Main. All settings are stored on the unit. However, Rockbox does not access the flash storage. Instead, Rockbox will save settings when it. Changes to settings may there for e not be saved. In addition, they do not. The Settings menu allows you to set or adjust many parameters that affect the way. The re are many submenus for different parameter areas.
Every time. You can then confirm or cancel the value. The Sound Settings menu offers a selection of sound properties you may change to.
The details of this menu are covered in section 6. The Playback Settings menu allows you to configure settings related to audio playback. The General Settings menu allows you to customise the way Rockbox looks and the. The details of this menu are covered in section 8 page The The me Settings menu contains options that control the visual appearance of. The details of this menu are covered in section 9 page The Recording Settings menu allows you to configure settings related to recording.
The Manage Settings option allows the saving and re-loading of user configuration. The details of this menu are covered in section The Recording Screen shows the time elapsed and the size of the file being recorded. A peak meter is present to allow you set gain correctly. The re is also a volume setting,. The counter is reset. This menu option switches to the radio screen.
The FM radio has the ability to remember. To load the settings, i. Further in for mation on Recording. Playing a file in a directory causes all the files in it to be placed in a playlist. Playlists can. Create Playlist: Rockbox will create a playlist with all tracks in the current directory. With this option you can load and run various plugins that have been written for Rockbox.
The re are a wide variety of these supplied with Rockbox , including several games,. Rockbox Info: Displays some basic system in for mation. This is, from top to bottom,.
Debug Keep Out! If you think you have. The default settings are Shuffle section 7 page 53 , Repeat section 7 page To change the options, navigate through the. Press Long Home to access it and Select or Home to exit. The direction buttons. The re for e if you select the same setting at e. This menu item is a container for user defined shortcuts to files, folders or settings. The file shortcuts. Most items can also be. A reboot is needed for. The sound settings menu offers a selection of sound settings you may change to customise.
The se volume levels will ordinarily. The volume can be adjusted from a minimum of dB to a maximum. The minimum setting is. The minimum. This setting controls the balance between the left and right channels. The default, 0,. A stereo audio signal consists of two channels, left and right. The Channels setting. This has the effect of gradually centering the stereo image,. The human ear and brain together are very good at interpreting the time differences.
The left ear hears. The result is that. The crossfeed function uses an algorithm to feed a delayed and filtered portion of the. The result is a more natural stereo image that can be especially. Most users will find the default settings to yield satisfactory results, but for the more.
Rockbox features a parametric equalizer EQ. As the name suggests, a parametric EQ. In some ways the. Band 0: Low shelf filter. The low shelf filter boosts or lowers all frequencies below a. Higher values will add a small boost. The high shelf filter is adjusted the same way as the low shelf filter,.
As a general guide, EQ band 0 should be used for low frequencies, EQ bands 1 through. The Precut setting allows you to apply a global negative gain to decoded. Simple EQ. This option provides an easier alternative for those who are daunted by all.
Advanced EQ. This sub menu provides options for adjusting the same parameters as the. Graphical EQ. The only difference is that the parameters are adjusted through. Browse EQ Presets. This menu displays a list of EQ presets, as well as any EQ configurations. This setting controls the dithering and noise shaping functionality of Rockbox. The simplest way to convert from one bit.
After dithering, noise shaping is per for med. This basically just pushes the dithering. Rockbox uses highpass triangular distribution noise as the dithering noise source, and. This function is intended for speech playback and may. The Compressor reduces, or compresses, the dynamic range of the audio signal.
The re are several settings associated with the compressor. The first, and most important,. The threshold is the audio input level at which the compressor. The maximum amount of compression, or the quietest level at which the compressor will. The default of Auto will. The Ratio setting determines how aggressively the compressor reduces gain above. For example, the setting means that for each two decibels of input. The higher the ratio, the harder the signal is compressed.
The ratio setting of. The Knee setting determines how abrupt the transition is from a non-compressed. The Soft Knee setting smoothes the transition from plus or minus three. The Release Time setting sets the recovery time after the signal is compressed. Release Time is the time for the gain to recover by 10 dB. Turning shuffle on will cause Rockbox to randomly re-order the playlist.
Thus, to shuffle. For more in for mation on creating playlists refer to section 4. This setting controls what happens when you select a file for playback while shuffle mode. The se settings control the speed and acceleration during fast for ward and rewind. This section controls the behavior of the crossfader. The crossfader, when enabled,. If set to Automatic Track Change Only, crossfade occurs for automatic track.
The next setting, Manual Track Skip. Shuffle, crossfade is enabled for all track changes, automatic or manual, when. Manual Track Skip then crossfade will be active either when shuffle is set to. Fade In Delay. Fade In Duration. The length of time, in seconds, that it takes your music to fade in. Fade Out Delay. Fade Out Duration.
The length of time, in seconds, that it takes your music to fade. Mix mode is not used for manual track skips, even if it is selected here. The graphic below illustrates how the different settings work in practice. This allows you to control the replaygain function. The purpose of replaygain is to. Do not process replaygain in for mation, i. Prevent Clip ping. If a song would clip during. Replaygain in for mation is needed.
The pre-amp can be set to any decibel dB value. Controls the volume of the beep that is heard when skipping for ward or backward between.
Control what Rockbox does when it reaches the end of a directory. If Auto-Change Directory. If Auto-Change. This service. The log-file is called. Enables reading of cuesheet files for played tracks. If a cuesheet is found for a track,. Also the in for mation found in the cuesheet file will replace. The contents of a cuesheet file can also be embedded within the metadata of an audio. The Skip to Outro option changes the behaviour. If this option is enabled, the ability to manually skip tracks is disabled in order to avoid.
When restarting a track or a bookmark, a short rewind can be done be for e the playback. The size of the rewind can be set to. Note: This option does not apply to resuming a paused track. The Playlist sub menu allows you to configure settings related to playlists. Warn When Erasing Dynamic Playlist. If set to Yes, Rockbox will provide a warning. The File View menu deals with options relating to how the File Browser displays files. Sort Directories. This option controls how Rockbox sorts directories.
The default is to. Sort Files. This option controls how Rockbox sorts files. All of the options for Sort. It combines consecutive digits to a number used for sorting, taking leading zeros.
The File Browser displays all files and directories. Extensions are shown. The File Browser displays all directories and files supported by. Rockbox see section A. Files and directories starting with. The File Browser displays only directories, playlists and the supported. Extensions are stripped.
Files and directories starting. The File Browser displays only directories and playlists, for simplified. This sub menu allows you to configure the database.
See section 4. The amount of time the backlight shines after a key press. If set to. Even ABX cannot eliminate all biases. If, for example, the subject believes very strongly that he is not going to hear any differences, he may not be trying his best to hear differences. All subjective comparisons are biased. That is why they are called subjective. All evaluators doing subjective comparisons are biased. That is why, when evaluating the sound quality of audio devices and technologies such as amplifiers, CD players, wires, lossy encoders, etc.
Some evaluators might be able to guard against bias better than others. No evaluator, however, is able to guard against bias completely.
There is a way of verifying whether you are more or less biased. And that is to observe how you do in an ABX test. Many individuals have claimed to be able to hear a difference. Many of these same individuals have, after an ABX test, shown that they were not able to hear a difference. User opinion can sometimes be helpful. Very often, however, user opinion is worthless. Let us look at one extreme example.
For Rockbox or SanDisk, the augmenting data I would look at would be things like frequency response, signal-to-noise ratio, channel separation, total harmonic distortion, dynamic range, intermodulation distortion, etc; do these things show that the sound quality is worse? Or do these things show that, while they could be better, there is no decrease in sound quality. Now it is getting highjacked into a side contention about bias, etc. In any case: ABX itself is frequently questioned by evaluators as a source of inaccurate results.
If an individual had no way of discerning better-sounding audio output without doing an ABX test, the entire field of hi-fi would never have started. There have been many many people over many years who select better-sounding results as part of their work in the field, without any ABX test whatsover. Como respetamos su privacidad, puede optar por excluir algunos tipos de cookies.
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The marking is consistent with the product codes used by Amperex Technology Limited for a battery with dimensions of 30x38x3. Extrapolating the capacities from this page suggests a capacity a bit lower than mAh for the battery used in the Clip. This is auto-detected in Rockbox.
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