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The high frequencies may be the same volume as – or louder than – the low frequencies when sent across the line. The loudness difference between the high and low frequencies can be as large as 3 decibels (dB) and is referred to as "twist." The duration of the tone should be at least 537 ms. [1]
The Motorola ROKR (/ ˈ r ɒ k ər /), the first version of which was informally known as the iTunes phone, was a series of mobile phones from Motorola, part of a 4LTR line developed before the spin out of Motorola Mobility. ROKR models were released starting in September 2005 and ending in 2011, because of the dissolution of Motorola Inc..
A ringtone maker is an application that converts a user chosen song or other audio file for use as a ringtone of a mobile phone. The ringtone file is installed in the mobile phone either by direct cable connection, Bluetooth, text messaging, or e-mail. On many websites, users may create ringtones from digital music or audio.
Ringing tone (audible ringing, also ringback tone) is a signaling tone in telecommunication that is heard by the originator of a telephone call while the destination terminal is alerting the receiving party.
In April 2008, the iTunes Store was the largest music vendor in the United States, [15] and in February 2010, it was the largest music vendor in the world. [16] The iTunes Store's revenues in the first quarter of 2011 totaled nearly US$1.4 billion. [17] By May 28, 2014, the store had sold 35 billion songs worldwide. [18]
An outdated definition is as follows; 'mobile music is music which is downloaded or streamed to mobile phones and played by mobile phones. Although many phones play music as ringtones, true "music phones" generally allow users to stream music or download music files over the internet via a WiFi connection or 3G cell phone connection.
The Precise Tone Plan for the North American Numbering Plan of the US, Canada, and various Caribbean nations specifies a combination of two tones (350 Hz and 440 Hz) which, when mixed, creates a beat frequency of 90 Hz. The UK dial tone is similar, but combines 350 Hz and 450 Hz tones instead, creating a 100 Hz beat frequency.
The sound was made into a mobile phone ringtone, which could not be heard by teachers if the phone rang during a class. [13] Mobile phone speakers are capable of producing frequencies above 20 kHz. [14] This ringtone became informally known as "Teen Buzz" [15] or "the Mosquito ringtone" and has since been sold commercially.