Ti48 Instruction Manual v1.2 2 Contents QUICKSTART PAGE DESCRIPTION 5 1 Mains Power 5 2 Audio Connections 5 2.1 · Digital out 5 2.2 · I2S cable connection 6 2.3 · S/PDIF digital coaxial cable connection 6 3 Start up / Shut down 6 3.1 · How to start up 6 3.2 · How to shut down 78 4 Guide to the LCD screen and remote control handset 8 5 CD Playback 8 ...
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Ti48 Instruction Manual v1.2 3 USER MANUAL PAGE DESCRIPTION 9 CD Player Mode 9.1 · Options Menu 9.2 · Grab Album : how to archive a CD (see 6.2 for details) 9.3 · Grab Album Subset : how to archive part of a CD 21 9.4 · Grab Tracks : how to create a compilation album of tracks from more than one CD HD Player Mode 10.1 · Options menu 10.2 · Change Playlist : how to select albums/playlists from archived music (see 7.2 for details) 10.3 · Add Playlist : how to add albums/playlists to a current playlist 10.4 · Add Tracks : how to add tracks to a current playlist 10.5 · Edit Playlist : how to deselect tracks from a current playlist 25 10.6 ...
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Ti48 Instruction Manual v1.2 4 PAGE DESCRIPTION System Setup 13.1 · Options Menu 13.2 · Autoplay : enables CD playback without pressing PLAY on the remote control 13.3 · EmDB off : how to turn CD recognition system off 13.4 · Version Information : software version currently loaded 13.5 · Update CDROM Normal : how to load new software 36 13.6 · Forced Update : how to reload an older software version Software Updates 36 14.1 · Transport software 14.2 · EmDB...
Ti48 Instruction Manual v1.2 5 QUICK START BACK PANEL OF TI48 DO NOT OBSTRUCT FAN DO NOT OBSTRUCT FAN 2 2 SPDIF SPDIF LINE LINE I I S S Ti48 Ti48 ARCHIVAL ARCHIVAL IN IN OUT OUT CD TRANSPORT CD TRANSPORT MIC IN OUT MIC IN OUT OUT OUT IMAGI LTD IMAGI LTD Made in Singapore Made in Singapore ON ...
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Ti48 Instruction Manual v1.2 6 2 and “I S ” . The output device is set to S/PDIF by default. See Sections 12.2.1 and 12.2.7 (Device) in the User Manual for details on how to setup the Ti48 2 to output via the I S connection. Follow the instructions for the DAC to select 2 the I S input. 2.3 If you are using another manufacturer’s DAC, connect the Ti48 to the DAC using a digital cable with a coaxial (RCA) connector (not included). The cable should be connected to the Ti48 at the connector marked “SPDIF OUT”. The output device is set to S/PDIF by default. If this has been changed, see Sections 12.2.1 and 12.2.7 (Device) for details on how to setup the Ti48 to output via the S/PDIF connection. Refer to the DAC’s instruction manual for how to connect the digital cable to the digital input of the DAC. 2.4 The remaining connectors on the back panel of the Ti48, marked : “SPDIF IN” and “LINE : MIC / IN / OUT” are currently not operational. 3. START UP / SHUT DOWN 3.1 To start up the Ti48, press once – firmly on the button labelled “ON” (back panel). The Ti48’s LCD screen will light up and the unit will take about 30 seconds to start up. It will be ready to accept remote control commands when the screen reads : CD Player (stop) CD Player (stop) Track 0/0 Track 0/0 00:00 00:00 CAUTION : When the Ti48 is running, do not press the “ON” button again. Doing so may damage the harddisk drives and will result in a longer delay on start up the next time. 3.2 ...
Ti48 Instruction Manual v1.2 7 4. GUIDE TO THE LCD SCREEN & REMOTE CONTROL HANDSET LCD SCREEN When the MENU or OPTS keys are pressed, the LCD screen will look like this : Top Line 01 Transport 01 Transport >CD Player >CD Player Menu Cursor HD Player HD Player options HD Editor HD Editor The top line will show either the mode which the Ti48 is in eg. CD Player or HD player; or it will show the function eg. change playlist. The cursor shows which menu option will be selected if the OK button is pressed. The cursor can be moved using the UP/DOWN arrow keys. Note : The LCD backlight comes on when a key on the remote control is pressed and will stay on for 10s. To see the screen without sending a command to the software, press DISPLAY on the remote control REMOTE CONTROL HANDSET To open and close To open and close EJECT EJECT EJECT CLOSE CLOSE CLOSE the CD tray the CD tray y y abc abc def def ...
Ti48 Instruction Manual v1.2 8 Remote Control Keys Functions Ejects the CD tray. EJECT Closes the CD tray. This will only work CLOSE when the Ti48 is in CD Player mode Accesses the main MODE menu ( ie. CD MENU Player; HD Player; HD Editor; etc) OPTS Accesses the OPTIONS menu(s) for each MODE PLAY/STOP/NEXT/PREV/FFW/REW These operate in the same way as most CD player control keys. Refer to Section 5.3 for a full description of the key functions. The function of these keys changes 1 , 2 , 3…… 0 depending on operating Note : MODE/OPTIONS. In CD Player or HD Player MODE, these “0” is “10” keys allow selection of track numbers. When Grabbing CDs, these keys are alphanumeric and can be used to enter the artists names, album and track titles In text entry mode, this key changes the Aa1 alphanumeric keys from capital letters to small letters to numbers. Allows selection of numbers greater than / 9 Allows user to move up (UP) or down ARROW KEYS : (DOWN) menus and to select options in ...
Ti48 Instruction Manual v1.2 9 Remote Front Panel Screen Control Key(s) Open the CD tray and load EJECT EJECT CD Player (stop) CD Player (stop) CD Track 0/0 Track 0/0 00:00 00:00 Close CD tray CLOSE CLOSE CD Player (stop) CD Player (stop) If the CD is recognised by Track 0/12 00:00 Track 0/12 00:00 EmDB, the screen will show “Album name” “Album name” the names of the artist/group “Artist name” “Artist name” and CD. If the CD is not recognised by EmDB, the screen will read : “ Unknown Artist” “ Unknown Album” To play CD CD Player (play) CD Player (play) Track 1/12 00:31 Track 1/12 00:31 ...
Ti48 Instruction Manual v1.2 10 5.4 What is EmDB The Ti48 harddisk drives contains a CDrecognition software known as EmDB. This is a compressed version of the FreeDB database which is available on the internet : www.freedb.org. EmDB will recognise millions of CDs, providing information on the artist/group name, the album title and, in most cases, track titles as well. All this information has been (and continues to be) entered into the FreeDB database by the general public. As FreeDB is a continually updated database, your EmDB can be out of date with regards to the latest CD releases. EmDB can be updated by a CDROM available periodically from Zero One Audio. 6. ARCHIVING MUSIC 6.1 The Ti48 has 250Gb of harddisk drive capacity which will allow about 380 hours of uncompressed CD audio to be archived. A whole CD can be archived or part of a CD (album subset) or just a few tracks from a CD. Once archived, the audio albums and individual tracks can be organised into playlists. The file data associated with the albums and tracks can be edited and organised( see User Manual for full details on audio file management). 6.2 To archive a CD (album) Remote Front Panel Screen Control Key(s) Make sure Ti48 is in See Section 5.2 CD Player (stop) CD Player (stop) CD Player mode. Load the Track 0/12 00:00 Track 0/12 00:00 CD into CD tray and close the “Album name” “Album name” tray “Artist name” “Artist name” ...
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Ti48 Instruction Manual v1.2 11 Confirm. Grab Grab (copy) (copy) OK OK Track 1/12 Track 1/12 If the CD is recognised by the 00:31 00:31 EmDB database, the archiving “Album name” “Album name” will begin immediately. The “Grab” process will be completed when the screen returns to the main CD playback screen. If the CD is NOT recognised by the EmDB database, the Grab Album – Name Grab Album – Name system will prompt you to enter the artist/group name >Art : _ >Art : _ and CD/album name. Alb : Alb : NOTE : You do not have to enter the full names or even the actual names but you must enter some information for the system to file and retrieve the CD/album in future for playback. ...
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Ti48 Instruction Manual v1.2 12 Use alphanumeric keys to enter artist/group name T : Add New Artist Add New Artist e.g. to enter the name : “Test” tuv tuv ART : Test ART : Test Aa1 Aa1 A a : e : x 2 def 7 7 s : x 4 pgrs pgrs t : tuv tuv Confirm artist/group name OK OK Grab Album – Name Grab Album – Name Move cursor to “Alb” line Art : Test Art : Test > Alb : > Alb : Use the right arrow key to Grab Album – Name Grab Album – Name u move the cursor to the “new album” field ...
Ti48 Instruction Manual v1.2 13 Use alphanumeric keys to 7 7 R : x3 enter CD/album name pqrs pqrs Grab Album – Name Grab Album – Name e.g. to enter name “Rock1” Aa1 Aa1 Art : Test Art : Test A a : > Alb : Rock1 > Alb : Rock1 6 6 o : x3 mno mno 2 2 c : x3 abc abc 5 5 k : x2 jkl jkl a>1 : Aa1 Aa1 1 1 1 : y ...
Ti48 Instruction Manual v1.2 14 Move cursor down to “HD Player” line HD Player (stop) HD Player (stop) Track 0/12 00:00 Track 0/12 00:00 Confirm selection OK OK “Album name” “Album name” The current Playlist will be “Artist name” “Artist name” displayed on the screen. If there is no Album loaded, go to “Change CD/Playlist”. To playback this CD/album or Playlist, press PLAY All other playback functions work in the same way as in CD Player mode ( see 5.2 and 5.3) To play another CD/album or playlist saved in the Ti48 go to “Change CD/Playlist” HD Player HD Player OPTS OPTS > Change CD/Playlist > Change CD/Playlist Open mode OPTIONS Add to Playlist Add to Playlist Add Track(s) Add Track(s) Confirm selection ...
Ti48 Instruction Manual v1.2 15 When the artist/group has been selected, scroll down to HD – Change Playlist HD – Change Playlist the “Alb” line to find the Art : “Artist name” Art : “Artist name” name of the CD/album or > Alb : > Alb : playlist Ply : Ply : Use arrow keys or REW/FWD or alphanumeric keys to find the CD (album) or playlist name 7.3 What is a Playlist 7.3.1 A playlist is basically a file, containing audio data that has been archived, that is ready for playback in HD Player mode. It does not apply in CD Player mode. Playlists are useful for creating compilations of archived CDs and/or tracks for specific purposes. 7.3.2 A playlist can be : · A selected album ie. an archived CD that is ready for playback · A number of selected albums that will be played back sequentially · One or more selected tracks from different albums that will be played back sequentially · A combination of selected album(s) and track(s) that will be played back sequentially ·...
Ti48 Instruction Manual v1.2 16 8. DIGITAL OUTPUT SETTINGS 8.1 The Ti48 has a number of userselectable digital filters, upsampling rates, upsampling wordlength, and dither options. In addition, you can select the output connection to be used, the phase and the signal attenuation level. The full set of functions and options are listed below : Function Options Upmode (digital filter) None / Purist / HQ1 / HQ2 / HQ3 Uprate (upsampling frequency) 44100Hz / 48000Hz / 88200Hz / 96000Hz / 2 176kI2S (176.4kHz only via I S output) / 2 Note : only for DACs capable of 192kI2S (192kHz only via I S output) receiving data greater than 16 bit/44.1kHz. Dither None / TPDF / Nshape / Nyquist Wordlen (upsampling wordlength) 16bit / 18bit / 20bit / 24bit Note : only for DACs capable of receiving data greater than 16 bit/44.1kHz. Normal / Inverted Phase SigAttn (signal attenuation) None / 3dB Device (output connection) ...
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Ti48 Instruction Manual v1.2 17 8.2 To access the Output Settings Remote Control Front Panel Screen Key(s) Open mode MENU MENU MENU 01 Transport 01 Transport >CD Player >CD Player HD Player HD Player HD Editor HD Editor Move cursor down to “Output Settings” 01 Transport 01 Transport > Output Settings > Output Settings Confirm selection OK OK System Setup System Setup Shutdown Shutdown The Output Settings screen will look like this : Output settings Output settings Output settings >Up mode : None >Up mode : None >Up mode : None Up rate : 44100Hz ...
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Ti48 Instruction Manual v1.2 18 Remote Front Panel Screen Control Key(s) To select upsampling mode, move cursor to “Up mode” Output settings Output settings Output settings >Up mode : HQ1 >Up mode : HQ1 >Up mode : HQ1 Use arrow keys or OK to Up rate : 44100Hz Up rate : 44100Hz Up rate : 44100Hz u OK OK scroll to – Dither : None Dither : None Dither : None “Up mode : HQ1” To select upsampling rate, move cursor to “Up rate” Output settings Output settings Output settings Up mode : HQ1 Up mode : HQ1 Up mode : HQ1 Use arrow keys or OK to > Up rate : 88200Hz > Up rate : 88200Hz > Up rate : 88200Hz u OK OK scroll to – ...
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Ti48 Instruction Manual v1.2 19 USER MANUAL NOTE : Please read the QUICKSTART section first as this will help you to familiarise yourself with the menu structure and how to move around and select the various options. The following instructions are by necessity much more brief though where required, screen shots of the LCD are shown.
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Ti48 Instruction Manual v1.2 20 9. CD Player Mode 9.1 On startup, the Ti48 enters the CD Player mode by default. To change to CD Player mode from another mode eg. from HD Player : press MENU / OK In CD Player mode, you can select the following Options : Option Function Archive a CD Grab Album Grab Trk(s) to HD Archive selected tracks from a CD Store selected tracks in the buffer to make a compilation Grab Trks >Plylst album (tracks are not permanently archived until the playlist is saved) Change the upsampling rate, digital filter, dither, wordlength, Output Settings phase, signal; attenuation and digital output type Remote Control Front Panel Screen Key(s) CD Player CD Player To access the Options OPTS > Grab Album > Grab Album Grab Trk(s) to HD Grab Trk(s) to HD Grab Trks>Plylst Grab Trks>Plylst Use the Up and Down arrow CD Player CD Player keys to move the selection Output Settings Output Settings cursor up and down Display Settings ...
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Ti48 Instruction Manual v1.2 21 9.3.2 Use the alphanumeric keys to select the track numbers of the tracks that you DO NOT want to archive. Grab Trk(s) to HD Grab Trk(s) to HD This line shows that Track 6 is the last selected track from the CD and so far two tracks in total >T06 : “Track name” 2 >T06 : “Track name” 2 have been selected. 9.3.3 When all the tracks that you do not want to be archived have been selected, press : OK. 9.3.4 If the CD has NOT been found in the EmDB database, the screen will show : Grab Trk(s) to HD Grab Trk(s) to HD >Art : “Artist name” >Art : “Artist name” Alb : “Album name” Alb : “Album name” T01: unknown title 0 T01: unknown title 0 Follow the instructions in Section 6.2 of the Quickstart Manual to enter the name of the Artist/Group and the name of CD/Album. Select the tracks for not archiving in the same way above. 9.4 The Grab Tracks to Playlist function allows the archiving of selected tracks from a CD and the creation of compilation albums from several CDs . Because this function works by storing the selected tracks from each loaded CD in the Current Playlist buffer, you must first delete the Current Playlist. To do this, select HD Player Mode (see Section 10.1), then select Clear Playlist (see Section 10.6). If you wish to keep the Current Playlist, you must save it first (see Section 10.7). To archive selected tracks from a CD, select CD Player mode, load the CD. Then : Grab Track(s) : press OPTS / “ > Grab Track(s)” / OK ...
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Ti48 Instruction Manual v1.2 22 9.4.2 If the CD has NOT been found in the EmDB database, you will have to manually enter the artist/group and CD/album names (see Section 6.2). Track titles will also not be available but once the tracks have been archived, you can manually enter track titles and other information; see Section 11.1 in User Manual. 9.4.3 To save the archived tracks : Save Playlist: press OPTS / “ > Save Playlist” / OK See 10.7 for more details on Save Playlist. Because this Playlist was created from archived tracks and not from a previously archived CD, you will need to enter a name for the Playlist in the PLY field eg. “Jazz1”. This references the archived tracks to this Playlist. 9.4.4 To add more tracks from another CD to the same Playlist eg. “Jazz1”, ensure that “Jazz1” is the Current Playlist loaded in HD Player. Return to CD Player mode, load the new CD and follow Sections 9.4 to 9.4.3. You will not have to reenter the Playlist name (see Section 9.4.3) if you wish to keep it as “Jazz1”. 9.5 Output Settings : See Section 12 in User Manual 10. HD Player Mode 10.1 To change to HD Player mode from another mode eg. CD Player, press : MENU / / OK In HD Player mode, you can select the following Options : Option Function Select the archived CD/Album or saved Playlist to be played Change CD/Playlist Add another archived CD/Album or saved Playlist to the current Add to Playlist selected Playlist, which will be played back sequentially after the current Playlist ...
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Ti48 Instruction Manual v1.2 23 Remote Control Front Panel Screen Key(s) To access the Options OPTS OPTS HD Player HD Player > Change CD/Playlist > Change CD/Playlist Add to Playlist Add to Playlist Add Track(s) Add Track(s) Use the Up and Down arrow keys to move the selection HD Player HD Player cursor up and down Edit Playlist Edit Playlist Clear Playlist Clear Playlist > Save Playlist > Save Playlist Use the Up and Down arrow keys to move the selection HD Player HD Player cursor up and down Save Playlist Save Playlist Output Settings Output Settings > Back > Back 10.2 Change CD/Playlist : refer to section 7.2 in Quick Start manual. 10.3 ...
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Ti48 Instruction Manual v1.2 24 10.3.2 When the artist/group name has been found, next find the CD/album name (“Alb :”) for that artist/group. Use the key to move the cursor down to the “Alb” line. Follow the instructions above to find the name of the CD/album. 10.3.3 When the “Art :” and “Alb :” information has been found, press : OK . The selected CD/album will be added to the end of the current playlist. 10.4 Add Tracks : press : OPTS / “ > Add Track(s)” / OK HD – Add Track(s) HD – Add Track(s) > Art : “Artist name” > Art : “Artist name” Alb : “Album name” Alb : “Album name” T01 : Track 01 0 T01 : Track 01 0 10.4.1 To find the artist /group name (“Art :”) for the album or saved playlist to add to the current playlist , use : a) alphanumeric keys for the first letter of the name b) to scroll alphabetically through all the names c) to jump forwards or backwards by 5 names 10.4.2 When the artist/group name has been found, next find the CD/album name (“Alb :”) for that artist/group. Use the key to move the cursor down to the “Alb” line. Follow the instructions above to find the name of the CD/album. 10.4.3 When the CD/album name has been found, next select the track numbers (“T01”) to be added to the current Playlist. Use the alphanumeric keys to enter the track numbers. 10.4.4 Once the “Art :” , “Alb :” and “T01” information has been found, press : OK The selected tracks will be added to the end of the current playlist. ...
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Ti48 Instruction Manual v1.2 25 10.5.1 To deselect a track, with the cursor against that track title, press : def def NOTE : tracks are not deleted from the harddrive by this function 10.5.2 To return to playback mode, press : OK 10.6 Clear Playlist: press OPTS / “ > Clear Playlist” / OK Use the key to Clear the Clear the playlist ? playlist ? select “Yes” and press : OK > No > No Yes Yes Note : Archived CDs/tracks and Saved Playlists are not deleted from the harddrive by this function. However, Current Playlists that have not been saved will be lost. 10.7 Save Playlist: press OPTS / “ > Save Playlist” / OK HD – Save Playlist HD – Save Playlist > Art : “Artist name” > Art : “Artist name” Alb : “Album name” Alb : “Album name” Ply : album Ply : album 10.7.1 The “Art :” and “Alb :” fields will display the artist/group and CD/album names of the current Playlist. If you had created the Playlist by selecting a CD/album from the archives and then adding other CD/albums and/or tracks ...
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Ti48 Instruction Manual v1.2 26 To enter new artist/group HD – Save Playlist HD – Save Playlist name, find the “new artist” > Art : (new artist) HD > Art : (new artist) HD u field Alb : Alb : Ply : Ply : Press OK to confirm Add New Artist Add New Artist OK OK ART : ART : Use alphanumeric keys to 2 2 enter new artist/group name. etc HD – Save Playlist HD – Save Playlist def def abc abc Art : Blues guitarists Art : Blues guitarists Press OK to confirm >Alb : >Alb : OK OK Ply : Ply : ...
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Ti48 Instruction Manual v1.2 27 11. HD Editor Mode 11.1 To change to HD Editor mode from another mode eg. CD Player, press : MENU / x 2 / OK In HD Editor mode, you can select the following Options : Option Function Allows the information stored inside a track file to be changed Change track including artist/group, album and track names. info Delete track(s) Permanently delete one or more tracks from an archived CD/album Rename an archived CD/album Rename album Permanently delete an archived CD/album Delete album Change the name of an artist/group in the archived files Rename artist Permanently delete an artist/group name from the archived files Delete Artist (Note : all audio tracks /CDs/albums/Playlists stored under this artist/group name will also be deleted permanently). Remote Control Front Panel Screen Key(s) To access the Options OPTS OPTS HD Editor HD Editor >Change track info >Change track info Delete track(s) Delete track(s) Rename album ...
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Ti48 Instruction Manual v1.2 28 11.3 Delete track(s) : press OPTS / “ > Delete track(s)” / OK Find the artist/group name alphanumeric HD – Delete Track(s) HD – Delete Track(s) keys for the first letter of the name > Art : “Artist name” > Art : “Artist name” Alb : “Album name” Alb : “Album name” T01 : Track 01 0 T01 : Track 01 0 to alphabetically scroll through all the names to jump forwards or backwards by 5 names Find the CD/album name alphanumeric keys for the first HD – Delete Track(s) HD – Delete Track(s) letter of the name Art : “Artist name” Art : “Artist name” > Alb : “Album name” > Alb : “Album name” T01 : Track 01 0 T01 : Track 01 0 to alphabetically ...
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Ti48 Instruction Manual v1.2 29 11.4 Rename album : press OPTS / “ > Delete track(s)” / OK Find the artist/group name of alphanumeric the CD/album to be changed keys for the first Rename Album Rename Album letter of the name > Art : Various > Art : Various Alb : Old1 Alb : Old1 Find the CD/album to be changed to alphabetically scroll through all the names uu to jump forwards or backwards by 5 names Press OK to confirm Enter Album Title Enter Album Title OK OK selection Art : Various Art : Various ALB : ALB : Use alphanumeric keys to 2 ...
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Ti48 Instruction Manual v1.2 30 11.5 Rename artist : press: OPTS / “ > Rename artist” / OK Find the name of artist/group alphanumeric to be changed keys for the first Rename Artist Rename Artist letter of the name > Art : Various > Art : Various to alphabetically scroll through all the names uu to jump forwards or backwards by 5 names Enter Artist Name Enter Artist Name Press OK to confirm OK OK selection ART : ART : Use alphanumeric keys to enter new artist/group name, etc 2 2 then press OK abc abc def ...
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Ti48 Instruction Manual v1.2 31 11.6 Delete artist : press OPTS / “ > Delete artist” / OK Find the name of artist/group alphanumeric Delete Artist Delete Artist to be deleted e.g. “Various” keys for the first > Art : Various > Art : Various letter of the name to alphabetically scroll through all the names uu to jump forwards or backwards by 5 names Press OK to confirm OK OK selection Delete Artist Delete Artist Various ? Various ? Move cursor down to “Yes” > No > No Yes Yes Press OK to confirm OK selection NOTE : All CDs and/or tracks archived under this artist name will be deleted ...
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Ti48 Instruction Manual v1.2 32 12. Output Settings 12.1 To change any of the output settings To change to Output Settings mode from another mode eg. CD Player, press : MENU / x 3 / OK In Output Settings mode, you can select the following Options : Option Function Upmode Upsampling modes. These are the 5 digital filter options available; from no filter to the conventional “brickwall”. Uprate Upsampling rate. This is frequency at which upsampling will be performed; from no upsampling at 44100Hz to 196.4kHz. Low level digital noise added to help linearise the signal and Dither increase resolution. Wordlength of the upsampled digital data; can be increased from Wordlen 16 bits to 24 bits Absolute phase of the signal. Phase Signal attenuation. Can be 3dB or none. Sig Attn Device The digital output connection to be used; either I2S or S/PDIF. Remote Control Front Panel Screen Key(s) With the cursor against the Output settings Output settings output setting you wish to >Up mode : None >Up mode : None u OK ...
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Ti48 Instruction Manual v1.2 33 12.2 Details of the Digital Processing Options 12.2.1 Upmode There are five digital filters available in the Ti48. They are listed in order of increasing steepness of the filter and complexity . Filter Comments This setting offers the best transient performance, but the highest level None of out of band noise (some equipment does not handle this well, resulting in lowered performance). For oversampling modes (88.2, 176.4K), this setting does not employ a filter, but repeats the samples instead to make up the appropriate number. So 88.2, the processor outputs each CD sample twice, while at 176.4K, every four times. For upsampling modes (48, 96, 192K), it is not feasible to output without any filtering, so weighted line interpolation is used. This should not be considered a filter suitable for critical listening, and is included to keep the audio going whilst navigating through the different options. This is a special setting for oversampling modes, which uses halflength Purist versions of the HQ1 filters, giving a nonlinear phase response but also no "preringing" of the impulse. Upsampling modes are as per HQ1. These filters offer gentle low pass filtering, to reduce filter ringing just HQ1 outside what is considered to be the "audio band". These filters are steeper than HQ1, but gentler than HQ3. That's it. HQ2 These are the steepest filters available, approximating what is HQ3 commonly termed a "brick wall". 12.2.2 Uprate There are five sampling rates at which upsampling can be performed as well as the “no upsampling” option of 44100Hz. Sample Rate Comments ...
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Ti48 Instruction Manual v1.2 34 12.2.3 Dither Dither should be applied when outputting to a D/A converter which is capable of accepting more than 16bit wordlength. Do note that many older DACs which use greater than 16bit chips are limited to 16bit input by the S/PDIF receiver configuration. Consult your manual for the DAC to see if it can receive data with wordlength greater than 16bit. There are four dither options available : Dither Comments None No dither added Triangular PDF dither added TPDF This is a special kind of highpassed dither which introduces ultrasonic Nshape noise right at the Nyquist limit of the sampling rate in use. This can help to linearise some D/A converters. Second order noise shaping is employed to allow more resolution at the Nyquist low frequencies, as the expense of more noise at the higher ones. A useful choice for the sampling rates of 88.2K onwards 12.2.4 Wordlength The wordlength of the upsampled data can be increased to improve the accuracy of the data processing. This protects against data being lost during the mathematical operations required for the interpolation and sample rate conversion. The wordlength options available are : 16 bit / 18 bits / 20 bits / 24 bits 12.2.5 Phase Normal / Inverted 12.2.6 Sig Attn Attenuation : None This passes the signal through from the input without applying any attenuation. Attenuation : 3dB This attenuates the incoming signal by 3dB at the processing stage, to allow ...
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Ti48 Instruction Manual v1.2 35 12.2.7 Device I2S : custom I2S digital audio connection to be used between Zero One transports and DACs only. This is the minimal jitter connection. It is capable of transmitting up to 24bit/192kHz upsampled data from the Ti48 to a matching Zero One DAC. S/PDIF : standard digital audio interface utilising either RCA or TOSLink connectors. It can transmit up to 24bit/96kHz upsampled data to any outboard DAC capable of receiving and processing 24bit/96kHz data. 13. System Setup 13.1 To change to System Setup mode from another mode eg. CD Player, press : MENU / x4 / OK In System Setup mode, you can select the following Options : Option Function Enables the CD Player mode to automatically play a CD that Autoplay has been loaded in the tray when the tray is manually closed Turns off the FreeDB compressed CD recognition EmDB off Information about the version of the software currently in the Version system Information Updates software via CDROM Update CDROM Forced Update Enables return to a previous version of the software via CDROM Returns to previous screen Back 13.2 Autoplay : press to toggle between “Yes” and “No” u OK When “Yes” is selected, the Ti48 will automatically play a CD, in CD Player mode, when the CD tray is manually closed. To close the CD tray manually, ...
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Ti48 Instruction Manual v1.2 36 13.3 EmDB off : press to toggle between “Yes” and “No” u OK When “Yes” is selected, the EmDB CD recognition system will not function. This can be useful should you have a CD that you wish to archive but is being incorrectly recognised by the FreeDB database (EmDB is a compressed version of FreeDB). Although it is rare, this may occur with pressings of CDs made in different countries from the original CDs used to enter the FreeDB data. In such cases, you may wish to turn off the EmDB and enter the CD artist and album names manually, using the remote control keys. 13.4 Version Information Provides information on the version of the software in the Ti48. 13.5 Update CDROM Normal The software in the Ti48 can be updated by a CDROM. To update the software : open the CD tray and load CDROM ( DO NOT CLOSE CD TRAY ) Move cursor down to “Update CDROM”, press : OK The CD tray will close automatically and update will begin. The update process will be completed when the screen returns to the System Setup main menu. 13.6 Forced Update This is an option given to users to enable returning the Ti48 software to an older version. Follow the instructions as for Section 13.4 but this time loading the previous update software CDROM you have. 14. Software Updates 14.1 Transport software : from time to time, Zero One may issue updates to the software, either to improve the user interface or to add new features. These will be made available on CDROM which will automatically update the Ti48 when loaded. 14.2 EmDB : an update containing the latest information from FreeDB will be issued by Zero One on a quarterly basis. ...