FM transmitter for MP3 players

By Darcey McConnell

MP3 players continue to improve and advance as technology changes and improve. MP3 companies continue to add FM radios to their products as a way to give their consumers more ways to enjoy their favorite music. As time goes on, a greater share of the MP3 market includes FM radio. It can be difficult to sift through all of these MP3 with FM radio players to find the perfect MP3 player for you. If you are trying to find one to purchase, use these four separate search methods. If you use each method, you will be able to easily identify the right MP3 player for you.

These car transmitters can play both the mp3 and the wma files apart from direct transmission to radio. These car mp3 radio transmitters also have USB ports hence one can load any USB or other I/O device attached to the car mp3 radio transmitter.


The car mp3 transmitter comes with an innovative and a very fashionable design and the case to fit it inside the car is also elegant making it look as just a part of the car but not protruding or an extra device hanging in the car. These are light weight and easily attachable devices. These devices also have a phase locked loop technology along with sound coding. The car mp3 transmitter comes with a remote controller. The users of these systems are pretty happy with it is as the memory is high, it is slim. It also saves them the pain of changing CDs and USBs again and again.

The Digital Wireless Radio Transmitter wirelessly transmits music from youplayer to your car stereo. The digital tuner locks digitally into the clearest available radio station. Wide choice of channels allows you to tune your car stereo to the clearest FM frequency, and enjoy your music with full stereo sound and convenience. Receive calls while listening to music, just press "ANSWER" and music will pause to start your conversation through your car speaker. Supports called ID display and phone number report Built-in remote control with IRS function. This unit can support bluetooth function for iPhone 3G, iPhone and any other Bluetooth compatible device.

With bluetooth enabled, you can receive calls and hear the conversation through your car stereo! The cradle adjusts to almost any position. Keeps your iPhone or MP3 player or PDA just where you need it to select the next play list and keep your tunes coming.

About the Author:

Learn more about mp3 radio #1. Stop by Darcey McConnell's site where you can find out all about mp3 radio #2 and what it can do for you.

READ MORE - FM transmitter for MP3 players

Some Crucial Things You Should Know Regarding Wireless Loudspeakers

By Gunter Fellbaum

Looking at some of the technical specs of today's wireless speakers, one cannot help but be at a loss in trying to compare different models. I am going to explain the term "speaker wattage" a bit more in this article. "Wattage" is one of the most fundamental terms describing speaker performance. However, it is often misunderstood. Some manufacturers also in the past have used this term in a confusing manner to hide the real performance.

Speaker specifications are sometimes hard to interpret since they are not fully standardized. As such it may be difficult to figure out the true performance of the speaker simply by looking at the specs. One good method though is to do a listening test before purchasing your speaker. During this test you ideally want to set up the speakers in a similar environment as your application. Let me now go ahead and explain the wattage rating of loudspeakers.

"Wattage" shows how loud your speaker can sound. Depending on your application, you can go with a small speaker tolerating only a few watts or a larger one tolerating several hundred watts. Many smaller home speakers only can be driven with a few watts power which usually is enough for a small room. If you plan to shake your walls then you obviously want to opt for a speaker that has up to several hundred watts. Please note that many speakers will start distorting the audio once the audio reaches higher wattage. If you want to enjoy low-distortion audio then you may want to pick a speaker which will give you more wattage than you will actually need.

There are two common ways to display speaker wattage. These are "peak power" and "rms power". "Peak power" describes how much power the speaker can tolerate for a short burst. On the other hand, "rms power" describes how much power the speaker can tolerate for a prolonged amount of time without being damaged. In the past, vendors have usually preferred listing the "peak power". This number is higher than the average or "rms" power. However, "peak power" can often be misleading since there is no standard showing the amount of time that the speaker has to be able to tolerate this amount of power.

Nonetheless, while the rms rating will tell you more about the speaker's actual performance, be sure though that the speaker has a peak power rating which is substantially higher than the rms rating. This is because most likely you will be using the speaker to reproduce music or voice. Music and voice signals by nature always fluctuate in terms of their power, i.e. the power envelope of the signal will vary over time. The main reason is that music signals will have short bursts of high power which the speaker has to handle. Rms power is measured with a constant sine signal which hardly compares with a music signal in terms of the power envelope.

Please note that often the peak power that your amp can deliver to your speakers depends on the impedance of your speakers which is typically between 4 and 8 Ohms. An audio amplifier which has a fixed internal supply voltage will have a maximum output signal swing that is limited by that supply voltage. If you are driving an 8-Ohm speaker then your amplifier must deliver twice the output voltage than when driving a 4-Ohm speaker in order to deliver the same amount of power to your speaker. Usually maximum power is specified for a 4-Ohm speaker impedance. However, ideally the manufacturer of your amplifier will tell which speaker impedance the amplifier can drive. Please note that some amplifiers cannot drive speakers with very low speaker impedance.

About the Author:

You can find further details about cordless speakers from Amphony's web page.

READ MORE - Some Crucial Things You Should Know Regarding Wireless Loudspeakers

Buying Tips For Wireless Surround Sound Kits

By Gunter Fellbaum

A large number of wireless audio transmitter products have emerged over the years. They promise to cut the cord to your audio equipment. We will examine the impact of new technologies on the performance of these products. Also, we'll examine if they keep their promise of eliminating the cable clutter.

The first form of wireless audio transmission was in the form of AM and FM radio stations. FM radio is still popular today. However, newer technologies have started to replace it. These include DAB broadcasts, satellite and HD radio. Today's wireless consumer devices such as wireless surround sound kits, baby monitors, Bluetooth audio transmitters and wireless microphones eliminate the cord.

Setting up speakers in another room and distributing music throughout the house are some of the applications of wireless audio. Many homes are not wired for audio. The technologies used today all have pros and cons as we will examine.

FM transmitters are using the most traditional technology in which audio is sent by changing the frequency of a radio-frequency carrier. This technology is called frequency modulation or FM. It is fairly simple to implement. Thus FM transmitters are very cost-effective. Also, FM transmission offers high range. As a result, most of today's 900 MHz wireless headphones use FM transmission. However, FM has some major drawbacks.

The first is the fact that the transmission will pick up noise and thus there will be some hiss or static. The amount of noise will actually vary depending on the location of the radio or receiver. This is due to the fact that the radio signal is bouncing off walls and will cancel itself out at different locations. This phenomenon is called multi-path fading. Using two antennae is one method some devices cope with this problem (diversity receivers). Another problem is that FM radios easily pick up interference from competing wireless transmitters.

Bluetooth has gained popularity recently for wireless audio transmission even though this protocol was primarily designed to connect computer peripherals. Bluetooth audio transmitters will convert the audio signal to digital information and then transmit via the Bluetooth protocol. Bluetooth is fairly robust in terms of interference in is well standardized. Bluetooth, however, has some problems in regard to wireless audio since it was not designed for wireless audio originally. The range of the transmission is only 30 ft or less. Also, Bluetooth does not have enough space to send an uncompressed CD-quality audio signal. Therefore the audio is compressed prior to the transmission. As a result of the audio compression, the audio quality will decrease. The final problem is the fact that Bluetooth will introduce a delay in the signal (also called latency) which is a problem when used together with video since the audio will be out of sync or if used in a surround sound setup where some of the speakers would be out of sync with the hard-wired speakers.

The technologies used for satellite radio and terrestrial digital radio offer high range. However, they also use extensive audio compression. Further, a delay of up to several seconds is introduced.

Another technology transmits the audio signal without compression digitally. This technology is used in wireless audio transmitters from Amphony. The audio signal will retain CD quality because no audio compression is used. The audio latency of this technology is less than 1 ms. Therefore it can be used for real-time applications such as wireless speaker kits in home theater setups.

By using error correction, this technology can cope with interference from competing wireless devices which is key in today's noisy environment. The Amphony transmitters operate at 5.8 GHz. This frequency space is less crowded than the 900 MHz or 2.4 GHz bands thus leading to a further improvement of reliability. In contrast to Bluetooth, any number of wireless receivers can operate from a single wireless audio transmitter which is a concern when distributing audio to several rooms within a home.

About the Author:

Gunter Fellbaum has been developing audio and electronic products for over a decade. You can find further information regarding wireless surround sound transmitters as well as other wireless audio products from Amphony's website.

READ MORE - Buying Tips For Wireless Surround Sound Kits

Iridium Satellite Phones Offer You Worldwide Protection

By Anton Schrud

"After I arrive in the South Pole, I am going to deliver you having a consult my Iridium Satellite phone." Appears like an argument that could be created with the hero in the sci-fi novel, right? Even though it may possibly sound peculiar, satellite phones are not as foreign as you might believe. Really, they are the simplest technique to communicate from places which have little if any phone service from a lot more advanced sources as an example land-line phones and cell phones. Because of the character from your phone, you are in a position to actually make use of it to simply call all more than the globe you would like.

Determined by details printed regarding the Iridium Satellite's web site, this phone service is alone that gives reliable service all through the entire globe. They credit score this achievement for his or her constellation of 66 low-earth orbit (LEO) satellites. The web site states the business's particular program allows each and every location about the globe, even including all of the oceans and polar regions furthermore to airspace, to turn out to be very easily utilized by phone. The web site also signifies the Iridium phone program surpasses other satellite phone techniques simply because you may find no significant delays in details transmissions. Other constructive alternatives that come with this phone program range from your realization they use less power, generating battery maintain going more time. Iridium's fingers held phones will also be a lot more compact than people supplied by another providers.

Together with voice solutions, the Iridium organization gives a number of other information transmission alternatives. These alternatives incorporate a chance to send faxes, pages and information messages. These alternatives allow you to stay in connection together with your organization or family members and trade details by any usually means you've got to. Although these phones are perfect for industries and providers, they're also ideal for people today. For example, these phones are utilized by people today through the U . s . States military when they're positioned in places not integrated in traditional phone services.

The phones will also be well suited for people within the building market who're employed in places exactly where you might find no phones in position yet. Satellite phones will also be well suited for use within emergency preserve or catastrophe places that land-line phones and cell phone towers are not functioning.

You will find also several other solutions to use these phones including journey reasons. Satellite phones are perfect for people in aviation or maritime positions simply because the phones function everywhere they could go. People on tv positions could also reap the benefits of satellite phones to make certain that journalists within the location to remain in touch making use of their home workplace. People within the mining, forestry furthermore to gas and oil fields could also delight in the toughness for any satellite phone. When you want to help keep in contact anywhere you may roam, or anywhere your function could just take you, you might be an awesome candidate to possess an Iridium Satellite phone. These phones can transmit messages actually throughout the world which means if you're regarding the North Pole, or up previously mentioned Australia, you will hold the capacity to interact with people whom you may have to speak.

About the Author:

Find out more info about iridium phone with my top recommended iridium satphone blog.

READ MORE - Iridium Satellite Phones Offer You Worldwide Protection

A quick look at the hottest cordless speaker kits.

By Gunter Fellbaum

A new trend is the appearance of an increasing number of home theater systems with cordless speakers or a separate wireless surround sound kit. As multi-channel audio still is a fairly new phenomenon, older homes are not prewired for surround sound, especially with the most recent trend of 7.1 surround systems. As such a wireless option appears to seem like the logical choice. But are these wireless surround sound kits reliable enough for real-world applications and do they get rid of the dreaded cable clutter?

Looking at available wireless surround sound kits, you will notice that most of them, such as the products from Rocketfish or LG will connect two speakers to a wireless receiver unit. As a result, such systems, while eliminating the speaker cable from the front of the room to the rear, do not really eliminate speaker cable but only reduce it. As such products with separate wireless receivers for each speakers, such as the product from Amphony, offer a much cleaner solution since each receiver can be attached directly to the speaker of choice.

Will the wireless have any effect on performance? Audio quality is a main concern. In picking a wireless system, one should choose a system where (a) the transmission itself does not pick up any noise or degradation in order to maintain the audio quality and (b) the wireless amplifier itself should be a high-quality amplifier with minimal distortion. Also, the size of the wireless speaker amplifier is a consideration as the receiver should be invisible.

In a surround sound application, such as a home theater setting, the audio from each speaker naturally should be in sync with the video and also with the audio of the other speakers. Some wireless surround sound kits, such as the product from Rocketfish, will introduce a significant delay to the signal. Therefore when choosing a wireless surround sound kit, it is important to look closely at how much latency the wireless unit will introduce. The Amphony product adds a little less than 1 ms delay which should be sufficiently low for pretty much any application.

One of the main issues with wireless devices of any sort is interference from other devices. As more and more consumer devices go wireless, the available frequency space becomes more and more limited. Especially the 900 MHz and 2.4 GHz bands are exceptionally crowded, due to WiFi hot spots, cell phones with Bluetooth etc. Picking a system that avoids these frequency bands may be the logical choice, such as systems working at 5.8 GHz.

In addition to connecting rear speakers in a home theater setting, another useful application of a wireless surround sound kit is setting up speakers wirelessly in another room in cases where installing speaker wire between different rooms presents a challenge or for setting up speakers in your backyard within minutes. The applications are endless.

About the Author:

You can get further information regarding cordless speakers from Amphony's website.

READ MORE - A quick look at the hottest cordless speaker kits.

Hints To Help You When Shopping For The Perfect Stereo Amplifier

By Gunter Fellbaum

Choosing the perfect audio amplifier can be overwhelming given the large number of different types and technologies. I will help you understand some of the basic amplifier jargon terms. This knowledge will help you choose the perfect amplifier.

Even though some audio sources have already a built-in amplifier, a separate amplifier gives you more flexibility for picking the model that best complements your speakers. There are some mini amplifier models available. These models are small enough to hide virtually anywhere.

When picking an amplifier, your first consideration probably is the amplifier output wattage. You will need a high wattage if you are driving speakers with a low sensitivity (expressed in dB/W), for driving speakers in large rooms or for outdoor speakers. Don't overdrive your speakers though since this can irreparably damage your speakers.

However, amplifier wattage is not everything. Good sound quality is probably more important than raw power. A 20 to 50 Watt amp should be sufficient for most real-world applications.

Amplifier output power is given as Watts rms (continuous) and Watts peak. The rms or continuous value tells you how much power the amplifier can deliver continuously while the peak power figure tells the maximum wattage that the amplifier can deliver for short periods of time. Most people will look at the rms power value when selecting an amplifier. However, music signals are anything but continuous. Therefore picking an amp that has sufficient peak power handling is just as important.

Audio quality is just as important as having enough audio power and therefore you should also look at figures such as total harmonic distortion or THD. No amplifier is perfect. There will be some amount of signal distortion which is caused by the amplifier. The amount of distortion is expressed in percent or dB. A smaller distortion number means a lower distortion of the audio signal by the amplifier. The amount of distortion will be less than 0.05% for a high-quality amplifier. Consumer type amplifiers have higher distortion figures. Typical figures are up to 10% depending on the output power.

Another specification is called signal-to-noise ratio. This number specifies how much undesired components such as hum and noise the amplifier will add to the audio signal. Consumer-grade amps will have a signal-to-noise ratio (SNR) of at least 80 dB. Higher-end amps will have an SNR of 100 dB or more. Audiophile amps will have an SNR of close to 120 dB.

There are several amplifier technologies available. Today's amplifiers are mostly Class-D amplifiers. Class-D amplifiers have a high power efficiency and waste little energy as heat. High power efficiency has led to the development of very small amplifiers. Some of these latest mini amplifiers are no bigger than a deck of cards. Class-D type amplifiers often have higher distortion and a lower signal-to-noise ratio than Class-A or Class-AB amplifiers. Some latest digital amplifier models, however, come very close to the audio quality of analog amps. Make certain that the amp has low distortion and a high SNR if you pick a Class-D amp.

About the Author:

Gunter Fellbaum has been designing audio and electronic products for over a decade. You can find further information concerning t-amp models and stereo amplifiers from Amphony's website.

READ MORE - Hints To Help You When Shopping For The Perfect Stereo Amplifier

Ideas for getting music for your iPod.

By Brian Fuller

AOL Radio and Yahoo! Launchcast listeners are now building their iPod music collection for free thanks to iGetMusic, a new recording tool.

Traditionally building a free iPod music collection has been a tedious task. The most common method would be ripping tracks from a CD and then convert them to MP3s. As a final step, title and artist information would be added by hand or by using a download service.

This traditional approach has changed more recently as more and more users are downloading tracks from online retailers such as iTunes or P2P networks. Aside from P2P downloads not always being legal, downloading individual tracks takes a significant amount of time. Having to manually enter track information, searching and then downloading individual tracks for hundreds or even thousand tracks will take a large amount of time. In addition, the record industry, plagued by ever falling sales, has flooded P2P networks with fakes in an attempt to slow illegal downloads.

Another method which does not require downloads is using internet radio rippers, such as StreamRipper, which will record tracks from online radio broadcasters. This method would appear to save a lot of time compared to downloads. However, the biggest problem with internet radio rippers is the cross-fading between tracks which makes creating cleanly cut tracks impossible for rippers. When splitting tracks, rippers rely on the title information which is broadcast along with the songs to determine where to split tracks. Online radio broadcasters, however, are deliberately varying the time when the title information changes in relation to the beginning of each track. As a result, a user will have to manually edit each track in order to get properly cut tracks. This will take a significant amount of time for a larger number of tracks.

Recently Amphony, a company that makes audio and software products has released iGetMusic which is an application that will extract music from free online radio services such as AOL Radio and Yahoo! Launchcast. The program will run in the background and save each track that is broadcast by these online radio services into a directory of choice. These songs are automatically tagged with title, artist, album and genre information which will make organizing them later on in iTunes or other music organizer software a snap. Also, this allows easy playback of songs from a particular album or artist on an iPod. All the tracks ripped by iGetMusic are full-length, i.e. don't miss anything at the beginning or end which is a big plus compared to traditional internet radio rippers.

When using iGetMusic, a user would launch the application and then open up one or several browser tabs at the same time and tune into any channel of the supported radio services such as AOL Radio. iGetMusic is actually able to grab songs from several browsers running in parallel. In practice this means that the software can rip several thousand tracks in a single day. The recording speed is in practice only limited by the speed of the internet connection and the computer. iGetMusic will check which songs already exist in the music collection and not record duplicate of songs.

As an added bonus, iGetMusic has a feature that automatically saves the album cover of each song which is pleasing to the eye when playing back songs on a computer with a media player such as Winamp or on an iPod. A user can set up a blacklist which contains names of artists that iGetMusic should not record.

Since iGetMusic is able to produce a large number of tracks, storage capacity of the iPod becomes an important consideration. An iPod nano offers up to 16 GBytes of memory and can hold up to 4000 MP3s depending on the sound quality or bit rate. iGetMusic will produce the songs in the AAC Plus (M4A) format which in comparison to MP3 cuts the size of the tracks in half without sacrificing sound quality. Thus an iPod nano can store up to 8000 tracks created by iGetMusic depending whether or not album covers are stored as well. Since some older MP3 players do not yet offer AAC Plus support, iGetMusic recommend using a free 3rd party batch converter to convert the tracks to MP3.

About the Author:

Get additional information about finding free iPod music in addition to iGetMusic from Amphony's website.

READ MORE - Ideas for getting music for your iPod.

Make Use of Webinars to Build Your Online Income

By George J. Rodman

With all of today's technological advancements, the manner in which we market and sell services and products on the Net, specifically in the IM niche, is always shifting. Not that long ago, sales letters were composed mostly of text. Today's sales letters utilize fancy graphics applications and first-rate copywriters. One of the chief problems is keeping abreast with all these advances; lately, it's the arrival of the video sales letter with which we need to deal with. One more challenge that face internet marketers is the rising awareness of the public to all of these methods and it has become more challenging to keep potential clients from clicking away from what you have to offer. This article takes a look at a new and more effective approach to online sales, the "webinar".

A vital component in becoming a soccess online is for people to trust you and to know who they are dealing with. As more people compete in the internet marketing niche, that trust has become threatened with the release of a few dubious products and the claims that come with them. However, there are still numerous ethical marketers who offer good value but they need to have a medium where they can present this. For many Internet marketers, the webinar is an important tool. In essence, a webinar is an online presentation to which you are invited by the product developers themselves or one of their representatives.

Webinars are scheduled for a certain day and time, and are live online events. The format usually takes the form of providing priceless information that demonstrates that the person presenting is knowledgeable and reliable. Sometimes there is more than one presenter, with different individuals showing their diverse areas of expertise. Once the presenter has presented his expertise and earned your trust, you can expect some kind of special offer towards the end of the webinar.

Finding a time for a webinar can be tough , since you may be dealing with people from all parts the world. It is possible to schedule more than one time for the live webinar but today it is typical to post a replay of the webinar for people who could not attend. One way to increase the number of folks who attend the live webinar is to offer something special to those who do, something beyond what will be available through the replays. Indeed, the idea of providing replays of live presentations is new to the world of webinars, and would look like a good idea. While these do not benefit from live interaction, you can have these set up to sell for you on a regular basis without the need for you to be there. Also, this overcomes any worries you may have in presenting live or any technical problems that can come up at a live event.

No question about it -- webinars are a priceless tool for any internet marketer, and if you take the time to understand the technology, you can look forward to more sales and conversions.

About the Author:

Christina P. Mitchell writes about Earn More Cash Online with Webinars along with Mother of the Groom Speech.To know more about Mother of the Groom Wedding SpeechesClick here.

READ MORE - Make Use of Webinars to Build Your Online Income

A quick look at the newest wireless earphones.

By Gunter Fellbaum

Are you overwhelmed by the flood of regular and wireless headphones? You never heard of the terms open and closed headphones or dynamic and static transducers? This overview will help you select the perfect model.

Headphones come in many styles and designs. The smallest type of headphones are so-called in-ear headphones. These headphones are plugged inside the ear. Some models have a bracket that wraps around the ear. In-ear headphones often come with iPods or MP3 players. They are light-weight. Also, they easily can be stored in your pocket. Another type of headphones which are larger than in-ear headphones sit on the ear and have an elastic frame which either sits on the head or wraps around the neck. If you are on a tight budget then you should consider one of these headphones, some models are designed to absorb external noise.

If you are looking for better sound quality then you should take a look at medium-end headphones which have soft ear cushions that depending on the model will be located either on your ear or around your ear. The second design eliminates the pressure on the ears and is preferred by many people. Next you will have to decide whether you want to go with an open design where the audio can penetrate from the transducer to the outside or a closed design. Some people think that an open design will sound light and more natural. A closed design on the other hand will not allow the audio to escape and also block exterior noise.

Most of today's headphones are so-called dynamic headphones. Dynamic refers to the type of transducer that is used. The second more expensive type which requires special headphone amplifiers are static headphones.

Wireless headphones eliminate the headphone cord. Bluetooth headphones are another option to consider. Bluetooth headphones are a type of wireless headphones which are designed for Bluetooth-enabled devices. Such devices include cell phones. The operating range is typically only 30 ft or less. Bluetooth headphones do normally not offer audiophile sound quality.

Other wireless headphones include FM type models which normally work at 900 MHz and digital wireless headphones which work at 2.4 GHz or 5.8 GHz. FM type models are the least expensive option of wireless headphones. The main drawback of FM headphones is a noticeable hissing, audio distortion and fairly high susceptibility to interference which I caused by the transmission.

Digital wireless headphones, such as Amphony headphones, encode audio data prior to the transmission. This makes this type of headphones superior in terms of sound quality. Digital wireless headphones are also fairly robust against interference. Some digital wireless headphones work at the less crowded 5.8 GHz frequency band. This band offers less competition from other wireless devices compared to the 2.4 GHz band.

About the Author:

Gunter Fellbaum has been developing audio and electronic products for over 10 years. You can get further information about wireless headphones from Amphony's website.

READ MORE - A quick look at the newest wireless earphones.