How long is a 12-inch 45 RPM record?

How long is a 12-inch 45 RPM record?

15 minutes
If you exceed the maximum time suggested for a record side, it can affect the quality of the audio.

How many minutes is 45 RPM?

4-6 minutes
7 inch records (also called “45s”) are referred to by their playback speed of 45 rpm and their standard diameter of 7 inches. At 45 rpm they hold around 4-6 minutes per side. 45 rpm is the most common speed for 7 inch records.

How long does a 45 RPM record play?

Suddenly, this format was capable of about a 22 minute playing time per side. The major advantage that 45 RPM records brought to the table was again one of size. They were physically smaller than 78s, which meant that the records themselves could be produced less expensively.

Why are some 12-inch records 45 RPM?

The 12-inch single variation first appeared during the disco era in the 1970s. Generally cut at 45 RPM, they feature wider groove spacing and shorter playing time compared to LPs, which permits a broader dynamic range or louder recording level (among other benefits.

How long is a 12-inch single?

Many record companies in the 1970s began producing 12-inch (30 cm) singles at 331⁄3 rpm, although 45 rpm gives better treble response and was used on many twelve-inch singles, especially in the UK.

What speed do you play 12-inch records?

33 1/3 RPM
Chances are, the records you’d like to listen to are full-size 12-inch records, spinning at 33 1/3 RPM, or 7-inch singles, spinning at 45 RPM. Often, EPs and maxi-singles are produced on 12-inch disks that also rotate at 45 RPM.

Why do singles play at 45 rpm?

Scientifically speaking, the longer wave-lengths, the smaller angles in the grooves and the less complicated geometry at 45 RPM help to cut very precise grooves with even the finest details. With a higher rotation speed, of course, the available playing time per side is reduced at 45 RPM.

Why do some 12-inch records play at 45 rpm?

12 Inch Singles The 12-inch single variation first appeared during the disco era in the 1970s. Generally cut at 45 RPM, they feature wider groove spacing and shorter playing time compared to LPs, which permits a broader dynamic range or louder recording level (among other benefits.

How long can a 45 rpm needle hold a 12 inch record?

So a needle bopping along 35% faster would get to the end of a 12″ record 1/1.35, or 74% sooner. If a regular LP can hold, conservatively, 20 minutes per side, then a 45 of the same size would be able to hold 20 min x 74% = 15 minutes (close enough) of music.

What is the difference between 45 rpm and 33 rpm?

A complicated subject, in a nut shell. 45 RPM = Increase of groove velocity at any point on the Lp is apparent. 33 1/3 RPM = a reduction of groove velocity as the stylus traverses towards the centre of the Lp is apparent.

How long does a 33 rpm record hold a side?

When cut at 33 rpm the records hold about 22 minutes of music per side. Pretty much every record you’d see in a store is a 33 rpm 12 inch record. In some instances they’re cut at 45 rpm and only hold about 15 minutes per side.

What is the size of the label on a 45 rpm?

standard issue 7″ 45s have a label diameter of 3.5″. 12″ 33s/45s have a label diameter of 4″ and generally an extra inch or more of dead space, so we’ll say 5″. 495″/min for the 7″ 45 RPM

https://www.youtube.com/watch?v=hTJAbfx0D_Q