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Buen manual de instrucciones
Las leyes obligan al vendedor a entregarle al comprador, junto con el producto, el manual de instrucciones Alesis AI-1. La falta del manual o facilitar información incorrecta al consumidor constituyen una base de reclamación por no estar de acuerdo el producto con el contrato. Según la ley, está permitido adjuntar un manual de otra forma que no sea en papel, lo cual últimamente es bastante común y los fabricantes nos facilitan un manual gráfico, su versión electrónica Alesis AI-1 o vídeos de instrucciones para usuarios. La condición es que tenga una forma legible y entendible.
¿Qué es un manual de instrucciones?
El nombre proviene de la palabra latina “instructio”, es decir, ordenar. Por lo tanto, en un manual Alesis AI-1 se puede encontrar la descripción de las etapas de actuación. El propósito de un manual es enseñar, facilitar el encendido o el uso de un dispositivo o la realización de acciones concretas. Un manual de instrucciones también es una fuente de información acerca de un objeto o un servicio, es una pista.
Desafortunadamente pocos usuarios destinan su tiempo a leer manuales Alesis AI-1, sin embargo, un buen manual nos permite, no solo conocer una cantidad de funcionalidades adicionales del dispositivo comprado, sino también evitar la mayoría de fallos.
Entonces, ¿qué debe contener el manual de instrucciones perfecto?
Sobre todo, un manual de instrucciones Alesis AI-1 debe contener:
- información acerca de las especificaciones técnicas del dispositivo Alesis AI-1
- nombre de fabricante y año de fabricación del dispositivo Alesis AI-1
- condiciones de uso, configuración y mantenimiento del dispositivo Alesis AI-1
- marcas de seguridad y certificados que confirmen su concordancia con determinadas normativas
¿Por qué no leemos los manuales de instrucciones?
Normalmente es por la falta de tiempo y seguridad acerca de las funcionalidades determinadas de los dispositivos comprados. Desafortunadamente la conexión y el encendido de Alesis AI-1 no es suficiente. El manual de instrucciones siempre contiene una serie de indicaciones acerca de determinadas funcionalidades, normas de seguridad, consejos de mantenimiento (incluso qué productos usar), fallos eventuales de Alesis AI-1 y maneras de solucionar los problemas que puedan ocurrir durante su uso. Al final, en un manual se pueden encontrar los detalles de servicio técnico Alesis en caso de que las soluciones propuestas no hayan funcionado. Actualmente gozan de éxito manuales de instrucciones en forma de animaciones interesantes o vídeo manuales que llegan al usuario mucho mejor que en forma de un folleto. Este tipo de manual ayuda a que el usuario vea el vídeo entero sin saltarse las especificaciones y las descripciones técnicas complicadas de Alesis AI-1, como se suele hacer teniendo una versión en papel.
¿Por qué vale la pena leer los manuales de instrucciones?
Sobre todo es en ellos donde encontraremos las respuestas acerca de la construcción, las posibilidades del dispositivo Alesis AI-1, el uso de determinados accesorios y una serie de informaciones que permiten aprovechar completamente sus funciones y comodidades.
Tras una compra exitosa de un equipo o un dispositivo, vale la pena dedicar un momento para familiarizarse con cada parte del manual Alesis AI-1. Actualmente se preparan y traducen con dedicación, para que no solo sean comprensibles para los usuarios, sino que también cumplan su función básica de información y ayuda.
Índice de manuales de instrucciones
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Página 1
A L ES I S AI-1 Reference M a nu a l[...]
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1 TABLE OF CONTENTS CHAPTER 1 : INTRODUCTION 1.0 ABOUT THE AI-1 ...................................................................... 1 1.1 IMPORTANT NOTES ABOUT THIS MANUAL .................. 3 1.2 OVERVIEW OF MAIN FUNCTIONS ..................................... 3 1.2A Digital Interface ............................................................[...]
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2 3.2D BRC Synchronization ................................................... 26 3.2E Output ADAT Tracks to AI-1 ....................................... 26 3.2F Bouncing Tracks While Outputting To AI-1 ............... 28 3.3 CONFIGURATIONS ................................................................. 29 3.3A ADAT to AES/EBU (48kHz) ...........[...]
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1 CHAPTER 1: INTRODUCTION 1.0 ABOUT THE AI-1 Congratulations! You’ve just purchased a powerful tool that will enhance your ADAT system with incredible digital audio routing flexibility. The AI-1 Digital Interface and Sample Rate Converter provides you a way of routing any two ADAT tracks to another digital recording system, or the other way aroun[...]
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2 track(s) and the sampling rate…and you’re up and running! With the BRC Master Remote Control, it’s even easier since all AI-1 controls are available from the BRC’s Digital I/O edit menu. • Optic digital interface. ADAT’s Proprietary Multichannel Optic Digital Interface carries up to eight tracks simultaneously via optic cable, allowin[...]
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3 digital recording terms that may be helpful as you read this manual. 1.1 IMPORTANT NOTES ABOUT THIS MANUAL This manual has been designed as a reference to assist the recording professional in learning the basic operation of the AI-1. All functions are explained in a clear manner, using step-by-step instructions and illustrations for setting up an[...]
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4 leaving the digital domain. The AI-1 can be used to transfer digital audio back and forth between DAT machines, CD player/ recorders and digital audio workstations. Whenever you transfer digital audio through the AI-1, the result is a perfect, exact duplicate of the original with no degradation or change in audio quality. 1.2B Digital Audio Synch[...]
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Página 8
5 When you play back the audio once it is on ADAT, it will adjust back to its normal speed and of course sound sharp…roughly 147 cents sharp. If you want to hear the audio on ADAT at the original pitch and speed, bring the ADAT’s pitch setting down to -147. Doing so will temporarily show “44.1” in the ADAT’s LED display, indicating that y[...]
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6 device is connected, and the AI-1 is receiving its clock information. If the selected Source button’s LED flashes, it means that either no device is connected to the selected input, or the clock information is not being provided by the source to the AI-1, or the clock information being provided by the source is neither 48kHz or 44.1kHz (see sec[...]
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7 all eight channels of the ADAT digital bus are transferred. When using the BRC Master Remote Control, any two channels can be selected, in which case the ADAT CHANNEL button(s) corresponding to each selected channel will be lit. Example: if the BRC is used to select channels 2 and 5 as the ADAT channels, two of the AI-1’s ADAT CHANNEL buttons ([...]
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8 indicated by the fact that both the 48kHz and 44.1kHz LEDs will be turned off.[...]
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9 CHAPTER 2: HOOKUP 2.0 POWER The AI-1 works with any AC voltage from 90 to 250 volts, 50 to 60 Hz. This eliminates the need for transformers or voltage switches. The AI-1 comes with a line cord for the destination to which the AI- 1 is shipped. The AI-1’s IEC-spec AC cord (do not substitute any other AC cord) is designed to feed an outlet that i[...]
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10 optic digital input; Note: If the other end of a fiber optic cable is disconnected and a signal is being sent through the cable, you will be able to see a red light at the output. This is an LED and not a laser light, so you don’t have to worry about damage to your eyes. 2. Connect one end of a fiber optic cable to the AI-1’s “ADAT” opti[...]
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11 In the meantime, you may be tempted to reconnect the AI-1 to a different ADAT when you want to route digital audio to tracks on another machine. However, to avoid a lot of cable swapping, we recommend swapping tapes instead. For example, let’s say you have two ADATs, the AI-1 is connected to and from ADAT #1. When you wish to record from an S/[...]
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Página 15
12 OUT, and the other end to the third ADAT slave’s DIGITAL IN. Its DIGITAL OUT then connects to the fourth ADAT slave’s DIGITAL IN, and so on; 5. Connect one end of a fiber optic cable to the DIGITAL OUT of the last ADAT in the chain, and connect the other end of the cable to the AI-1’s “ADAT” optic DIGITAL IN; 6. Finally, connect one en[...]
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13 BRC. This is required so that the BRC can synchronize to an AES/EBU or S/PDIF source. Both these connections can be made while power is on or off, and the ADATs do not need to be turned on in any particular order (see figure 3). To connect the AI-1 to a BRC and a multiple ADAT system: 1. Connect one end of a shielded dual male, 9-pin D connector[...]
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14 Figure 3 Note: In a multiple ADAT system, if power is turned off on one of the ADATs in the middle of the chain, all ADATs following it will no longer sync to the BRC, as the sync information will not pass through a unit that is turned off.[...]
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15 2.2 AES/EBU AND S/PDIF 2.2A Connecting an AES/EBU Device Digital routing to and from an AES/EBU device requires XLR type cables. These connections can be made while power is on or off, and the components do not need to be turned on in any particular order. To connect an AES/EBU device: 1. Connect one end of an XLR cable into the AES/EBU XLR outp[...]
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16 4. Connect the other end of the fiber optic cable to the S/PDIF optic input, OR, connect the other end of the RCA cable to the RCA input of the AI-1. Note: Both the optic and RCA outputs are active when the AI-1’s Destination is set to S/PDIF. This means you can route digital audio to two S/PDIF devices simultaneously. When the AI-1’s Source[...]
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Página 20
17 CHAPTER 3: TRANSFERRING DIGITAL AUDIO 3.0 AI-1 TO ADAT Recording from an AES/EBU or S/PDIF source through the AI-1 onto ADAT involves a few very simple steps. First, put the ADAT(s) into Digital In mode by pressing the DIGITAL IN button (the button will be lit). Next, the digital source must be selected. Then, choose the tracks you wish to recor[...]
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Página 21
18 RCA input for a sample clock reference. If no sample clock is found (because no device is connected, or the connected device is turned off), the AI-1 will then use the fiber optic input. 3.0B Selecting Record Tracks Once the Source has been determined, the next step is to choose which ADAT tracks are to be used to record the information. This is[...]
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19 tape on another ADAT, and you avoid having to reconnect your system. 3.0C Destination To route the AI-1 to ADAT, set the AI-1’s Destination to ADAT by pressing the DESTINATION ADAT button. The button’s LED will be lit indicating it has been selected. 3.0D Converting Sample Rate If the source you are recording from is already using a 48kHz cl[...]
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20 between 48kHz and 44.1kHz. 3.1A Source To route the ADAT to the AI-1, set the AI-1’s Source to ADAT by pressing the SOURCE ADAT button. The button’s LED will be lit indicating it has been selected. Note: When the AI-1’s Source is set to ADAT, the AI-1 links the ADAT optic input to the ADAT optic output, so that digital audio is routed from[...]
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21 When the Source is set to ADAT, the AI-1’s Destination Rate will automatically be set to 48kHz, since this is the sample rate of ADAT. If you wish to output the digital audio from the AI-1 at 44.1kHz, press the 44.1kHz DESTINATION RATE button (its LED will be lit). This can be used to route digital audio from ADAT to a DAT recorder or CD recor[...]
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22 … or … Digital input: A ES/EBU … or … Digital input: S /PDIF 4. Use the UP/DOWN buttons to select the digital input that is to be the source for recording: “ADAT”, “AES/EBU” or “S/PDIF” (the corresponding Source LED on the AI-1 will be lit to indicate the current selection); 5. To exit Edit mode, press the EDIT button (the ED[...]
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23 Digital input: A DAT 3. Press the DIGITAL I/O button again while the digital input display reads “ADAT”; The display will show the following: Select source with trk buttons All the record and input track LEDs will turn off, as they no longer reflect the record/monitor status. The TRACK INPUT LEDs are now used to reflect the current source tr[...]
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Página 27
24 onto any ADAT connected to the digital bus. 5. Press the EDIT button to exit Edit mode; 6. Press the DIGITAL I/O button to enable the digital bus (the DIGITAL I/O LED will go on to indicate it is enabled); 7. Use the TRACK SELECT buttons on the BRC to record-enable the destination tracks; 8. Initiate recording on the BRC. • The source tracks w[...]
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25 on will record the selected Source input from the AI-1. Since only two inputs are available (left and right), these inputs will alternate assignment between all selected record tracks if more than two are selected. To record from the AI-1 onto ADAT using the BRC: 1. Make sure the DIGITAL I/O button is enabled (its LED will be lit); 2. Press the [...]
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Página 29
26 5. Press the DIGITAL I/O button twice; The display will show the following: AI-1 Destination A DAT 6. If the AI-1 Destination is set to either “AES/EBU” or “S/PDIF”, use the DOWN button to set the AI-1’s Destination to “ADAT”. 7. Press the DIGITAL I/O button again to access the AI-1’s clock rate; The display will show the followi[...]
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Página 30
27 with the incoming source. However, it is important to note that the BRC also requires a 48kHz clock in order to be synchronized to the incoming digital signal (see section 3.2D). Since the BRC has nothing to do with the ADAT’s optic digital bus, you will need to route clock information from the AI-1 to the BRC by connecting the AI-1’s 48kHz [...]
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28 result in clicks in the audio. For more information on 48kHz clock, see sections 2.1C and 2.3. 3.2E Output ADAT Tracks to AI-1 If the BRC is in Edit mode (the EDIT button is lit), and the DIGITAL I/O button is pressed a third time when the Digital Input is set to "ADAT", (or if it is pressed a second time when set to "AES/EBU"[...]
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29 lit. Pressing the same button again will disable that track and turn off the LED. You may now select a different track. • A maximum of two tracks may be selected at a time, and they must come from the same tape machine. • When a track is selected as a source, any tracks from other machines that were previously selected will become disabled. [...]
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30 9. Use the UP/DOWN buttons to select the AI-1’s Destination Rate (48K or 44.1K). This determines the output sample rate of the AI- 1. 3.2F Bouncing Tracks While Outputting To AI-1 The digital output routed from ADAT to the AI-1 will always be active, whether DIGITAL I/O is turned on or off. However, if DIGITAL I/O is on and “ADAT” has been[...]
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31 after it. However, it is important to note that even though the AI-1’s destination may be set to AES/EBU or S/PDIF, it is still sending all eight channels of the source ADAT back to the first ADAT in the chain. Therefore, it is possible to bounce tracks from the source ADAT onto the same track numbers on the first ADAT, while simultaneously ro[...]
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32 Note: Even when the AI-1’s destination is set to AES/EBU, the digital bus being received from the last ADAT is routed through back to the first ADAT. Therefore, it is possible to bounce audio from the last ADAT back to the first ADAT, while simultaneously routing two tracks from the last ADAT to an AES/EBU device. 3.3B AES/EBU to ADAT (48kHz) [...]
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33 In this configuration, the ADAT optic jacks and the AES/EBU XLR jacks are used. In the figure below, ADAT #1 is receiving from an AES/EBU device using a 44.1kHz sampling rate being converted to 48kHz. The proper control settings for this operation are as follows: Source = AES/EBU Destination = ADAT Destination Rate = 48kHz Figure 7 3.3D ADAT to [...]
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34 3.3E AES/EBU to ADAT (44.1kHz) In this configuration, the ADAT optic jacks and the AES/EBU XLR jacks are used. In the figure below, ADAT #1 is receiving from an AES/EBU device using a 44.1kHz sampling rate without conversion. The proper control settings for this operation are as follows: Source = AES/EBU Destination = ADAT Destination Rate = 44.[...]
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35 Source = ADAT Destination = S/PDIF Destination Rate = 48kHz Figure 10 Note: Even when the AI-1’s destination is set to S/PDIF, the digital bus being received from the last ADAT is routed through back to the first ADAT. Therefore, it is possible to bounce audio from the last ADAT back to the first ADAT, while simultaneously routing two tracks f[...]
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36 3.3H S/PDIF to ADAT (44.1kHz to 48kHz) In this configuration, the ADAT optic jacks and the S/PDIF jacks are used. In the figure below, ADAT #1 is receiving from an S/PDIF device using a 44.1kHz sampling rate being converted to 48kHz. The proper control settings for this operation are as follows: Source = S/PDIF Destination = ADAT Destination Rat[...]
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37 for this operation are as follows: Source = ADAT Destination = S/PDIF Destination Rate = 44.1kHz Figure 13 3.3J S/PDIF to ADAT (44.1kHz) In this configuration, the ADAT optic jacks and the S/PDIF jacks are used. In the figure below, ADAT #1 is receiving from an S/PDIF device using a 44.1kHz sampling rate without conversion. The proper control se[...]
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38 3.3K ADAT to ADAT In this configuration, the AI-1 becomes a transparent link in a daisy- chain. In the figure below, ADAT #2 is transmitting all 8 tracks to ADAT #1, in addition to all 8 tracks of ADAT #1 being routed to ADAT #2. The sample rate is fixed at 48kHz, and cannot be changed to 44.1kHz. The proper control settings for this operation a[...]
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39 from another digital source: 1. Press and hold the SET LOCATE button; 2. Press the DIGITAL IN button; The ADAT’s display will momentarily read “int” indicating it will use its own internal clock at all times, even when the DIGITAL IN button is enabled. When you wish to record from the AI-1 again (from an AES/EBU or S/PDIF source), you must[...]
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40 In this configuration, either the S/PDIF fiber optic jacks or RCA jacks (or both) are used to connect two S/PDIF devices through the AI-1. In the figure below, S/PDIF device #1 is connected to the RCA jacks of the AI-1, while S/PDIF device #2 is connected to the fiber optic jacks. This scenario would only occur when you wished to use the AI-1 to[...]
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41 CHAPTER 4: APPENDICES 4.0 APPENDIX 1: SPECIFICATIONS Number of Digital Audio Channels: ADAT: 8 AES/EBU, S/PDIF: 2 Sample Clock Input range: 48 kHz nominal. User variable from 50.8 to 40.4kHz (+1, -3 semitones). Digital Inputs/Outputs: Connectors: Four EIAJ fiber optic jacks (2 inputs, 2 outputs); two RCA connectors (1 input, 1 output); two XLR c[...]
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42 Dimensions (H x W x D): 1-3/4" x 19" x 6-1/4" Weight: 4.5 lbs (2 kg) Shipping Weight: 7 lbs (3.1 kg) Accessories Included: IEC style AC power cord Owner’s Manual Optional Accessories: RMB Remote Meter Bridge BRC Master Remote Control[...]
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43 4.1 APPENDIX 2: MAINTENANCE/SERVICE INFORMATION 4.1A Cleaning Disconnect the AC cord, then use a damp cloth to clean the AI-1’s metal and plastic surfaces. 4.1B Maintenance Here are some tips for preventive maintenance: • Periodically check the AC cord for signs of fraying or damage. • Unplug the AI-1 when not in use for extended periods o[...]