science

RCA Lyra

RCA Lyra is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand RCA Lyra rather than just read about it. In short: Lyra is a series of MP3 and portable media players (PMP). Initially it was developed and sold by Indianapolis-based Thomson Consumer Electronics Inc., a part of Thomson Multimedia, from 1999 under its RCA brand in the United States and under the Thomson brand in Europe.

Key takeaways

RCA Lyra belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect RCA Lyra to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of RCA Lyra from memory before moving on to harder problems.

Reference excerpt

Lyra is a series of MP3 and portable media players (PMP). Initially it was developed and sold by Indianapolis-based Thomson Consumer Electronics Inc., a part of Thomson Multimedia, from 1999 under its RCA brand in the United States and under the Thomson brand in Europe. There were also RCA/Thomson PMPs without the Lyra name, such as the RCA Kazoo (RD1000), RCA Opal and RCA Perl. In January 2008, Thomson sold its Consumer Electronics part including the RCA brand and Lyra line to AudioVox. RCA-branded PMPs are still being made today in its domestic market but no longer under the Lyra name. The Lyra was an early pioneer in digital audio players, although in later years most of its output were OEM products.

Players

Lyra (RD2201/RD2204)

The first ever Lyra was released in 1999 as a CompactFlash (CF) based player. It was sold in two models: the RD2201 with a 32 MB CF card ($199.99 list price), and the RD2204 (sold as the Thomson PDP2201 outside the U.S.) with 64 MB CF card ($249.99 list price). It was the first MP3 player that could be updated through software downloads. The Lyra was developed in partnership between Thomson Multimedia and RealNetworks - it has integration with the RealJukebox Windows software and, alongside encrypted MP3, can also play Real's G2 format audio files. A later firmware also allows WMA format playback. It has a 1" × 3/4", 6-line, backlit monochrome display which at that time (1999-2000) was relatively large. It has a software based five band graphic equalizer, and an external power jack. This series of players requires a proprietary CF reader used in conjunction with specific media players in Windows in order to write files to the card. A supported setup would take a blank CF card, recognize the correct reader attached to the PC, and then while syncing songs to the device, convert them to an encrypted version of RealAudio, MP3, MP3Pro, and later WMA format that is unrecognizable to any other device. It also drops a folder title 'Pmp' onto the root level of the device, which contains the boot image, a config file, and one or more executable, wma.exe, mp3.exe, or rlm.exe. Modified versions of the wma.exe program have been made, capable of playing unencrypted WMA files. This can be used in conjunction with a non-certified CF reader, making the device usable again to anyone who lost theirs and cannot acquire a new one. The only requirement then is to convert the MP3 files to WMA using any number of free converters. The device also supports much larger CF cards than it original shipped with, up to at least 512 MB. At these sizes though, boot time becomes significantly long, as the Lyra scans the entire card before presenting any menu. With only 250 MB of files, spread across roughly 100 tracks, this can be over a minute. The 2201 also supports custom splash screens via third-party software. The RCA logo can be replaced by overwriting the screen.bit file in the Pmp folder. An updated version, the RD2204A, sold with a 64 MB CF card, can support CF cards up to at least 2 GB. Like the RD2201A, boot times increase with the size of the card. The RD2204A can also be used with a third-party CF reader, provided that the user installs the RCA software on the PC.

Lyra2 (RD2211) The Lyra2, released in 2001, has a new design and the addition of an FM radio. It was sold with a 64 MB CompactFlash card. It has a newer, faster external CF reader that now uses the USB interface instead of the parallel port. It no longer comes with RealJukebox software but instead with Music Match Jukebox 6.0. Market rivals of the Lyra2 were the likes of Creative Nomad II and Rio 600/800.

Lyra Jukebox The first Lyra Jukebox model (RD2800) was released in mid-2002. It cost $250. It competed against Creative Nomad Jukebox 3, the Apple iPod, and the Rio Riot. A variant was the RD2820 and later an update called RD2821 was released. Another player was the 20 GB RD2826. This player (along with many others) would come bundled with Musicmatch Jukebox software. The Lyra Mini-Jukebox was a small hard drive player with 1.5 GB space. The Jukebox HD (RD2840) was released in 2003 with a 40 GB hard disk. It has a 5-line monochrome LCD.

Micro Jukebox With a 1 inch hard drive, the Micro Jukebox RD2760/PDP2810 introduced at CES 2003 is a small compact player but with 1.5 GB space. It has an 8-line backlit display. The later Micro Jukebox was released in 2004 with an internal 1.8" hard disk with 4 GB (RD2762) or 5 GB (RD2763FM) space. It also has a rechargeable Li-ion battery.

After this the RCA RD2765/Thomson PDP2812 was released with 5 GB memory and a color display.

A/V Jukebox One of the popular Lyra products was the A/V Jukebox (RCA RD2780 and Thomson PDP-2860). Introduced at CES 2003, it was also one of the first portable media players capable of playing MPEG-4 encoded videos. The device has a 3.5 inch display and was manufactured having a hard drive with a maximum capacity of 20 GB but could also work with a 60 GB hard drive which had to be installed manually. Battery life was reported to last for up to 3 hours of video and 6 hours of audio playback. One of the more popular features of this digital audio player was its ability to record live television through the RCA ports on a television set. The player's LCD had a resolution of 320×240 pixels with 16 million colors. It was also possible to view photos on the display screen while audio was playing. The PDP-2860 was also UMS-capable, meaning that it could act as a portable external harddrive with no additional software or driver installation.

RD1080 and RD1090 The small, compact RD1080 was released in 2002 and has a blue backlit LCD and built-in FM radio. It has 128 MB flash memory built-in but has a SD/MMC slot for expansion. In 2003, the RD1090 was released with 256 MB space.

RD1021/1071/1075

These compact sized players with aluminium finishes were released in 2003. They have SD/MMC card slots for expansion. The RD1021 has 64 MB integrated flash memory while the RD1071 has 128 MB and RD1075 has 256 MB.

RD1022/1028/1072/1076/1077 The new series of compact sized players, released in 2005.

RD2010, RD2110 and RD2210 series The RCA Lyra RD2010 series (RD2010/2011/2012/2015) was released in 2004. RD2112/2115/2117 are small splash-proof, sports-oriented music players. The RD2210/2212/2215/2217 include a calorie counter, pulse rate monitor and stopwatch.

… excerpt ends here. Continue reading the full article.

Illustrations

RCA Lyra: The RCA Lyra RD2201 — The RCA Lyra RD2201

RCA Lyra: RCA Lyra RD2765 — RCA Lyra RD2765

Worked examples

Example 1 — a first encounter with RCA Lyra

Start with the simplest possible case. Write down what RCA Lyra claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to RCA Lyra before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about RCA Lyra ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of RCA Lyra

In research: RCA Lyra appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses RCA Lyra in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: RCA Lyra is common in secondary-school and first-year university syllabi. It links to neighbouring topics Consumer electronics brands, Digital audio, Portable media players, so understanding it makes those chapters shorter.
In everyday life: Look for RCA Lyra outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study RCA Lyra in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what RCA Lyra means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain RCA Lyra out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is RCA Lyra in simple terms?

Why does RCA Lyra matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study RCA Lyra?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on RCA Lyra.