The typical recording studio consists of a room called the "studio" or "live room" equipped with microphones and mic stands, where instrumentalists and vocalists perform; and the "control room", where audio engineers, sometimes with record producers, as well, operate professional audio mixing consoles, effects units, or computers with specialized software suites to mix, manipulate (e.g., by adjusting the equalization and adding effects) and route the sound for analog or digital recording.
The engineers and producers listen to the live music and the recorded "tracks" on high-quality monitor speakers or headphones.
This greatly enhances the communication between the producer and engineer with the player, as studio mics, headphones and talkback are unnecessary.
To control the amount of reverberation, rooms in a recording studio may have a reconfigurable combination of reflective and non-reflective surfaces.
A Recording studio in an urban environment must be soundproofed on its outer shell to prevent noises from the surrounding streets and roads from being picked up by microphones inside.
With software, a powerful, good quality computer with a fast processor can replace the mixing consoles, multitrack recording equipment, synthesizers, samplers and effects unit (reverb, echo, compression, etc.)
The phenomenon has flourished with falling prices of MIDI equipment and accessories, as well as inexpensive direct to disk recording products.
Getting an authentic electric guitar amp sound including power-tube distortion requires a power attenuator or an isolation cabinet, or booth.
A gobo panel achieves the same effect to a much more moderate extent; for example, a drum kit that is too loud in the live room or on stage can have acrylic glass see-through gobo panels placed around it to deflect the sound and keep it from bleeding into the other microphones, allowing better independent control of each instrument channel at the mixing console.
In animation, vocal performances are normally recorded in individual sessions, and the actors have to imagine (with the help of the director or a reader) they are involved in dialogue.
[5] Animated films often evolve rapidly during both development and production, so keeping vocal tracks from bleeding into each other is essential to preserving the ability to fine-tune lines up to the last minute.
The acoustic energy from the voices or instruments was channeled through the horn to a diaphragm to a mechanical cutting lathe, which inscribed the signal as a modulated groove directly onto the surface of the master.
In line with the prevailing musical trends, studios in this period were primarily designed for the live recording of symphony orchestras and other large instrumental ensembles.
Engineers soon found that large, reverberant spaces like concert halls created a vibrant acoustic signature as the natural reverb enhanced the sound of the recording.
Because of the limits of the recording technology, which did not allow for multitrack recording techniques, studios of the mid-20th century were designed around the concept of grouping musicians (e.g., the rhythm section or a horn section) and singers (e.g., a group of backup singers), rather than separating them, and placing the performers and the microphones strategically to capture the complex acoustic and harmonic interplay that emerged during the performance.
Learning the correct placement of microphones is a major part of the training of young engineers, and many became extremely skilled in this craft.
Well into the 1960s, in the classical field it was not uncommon for engineers to make high-quality orchestral recordings using only one or two microphones suspended above the orchestra.
According to sound historian David Simons, after Columbia took over the 30th Street Studios in the late 1940s and A&R manager Mitch Miller had tweaked it to perfection, Miller issued a standing order that the drapes and other fittings were not to be touched, and the cleaners had specific orders never to mop the bare wooden floor for fear it might alter the acoustic properties of the hall.
These were typically long, low rectangular spaces constructed from hard, sound-reflective materials like concrete, fitted with a loudspeaker at one end and one or more microphones at the other.
A good example of this is Gold Star Studios in Los Angeles, the site of many famous American pop recordings of the 1960s.
Computers are used for playing ads, jingles, bumpers, soundbites, phone calls, sound effects, traffic and weather reports, and now are able to perform full broadcast automation when no staff are present.
Additional outside audio connections are required for the studio/transmitter link for over-the-air stations, satellite dishes for sending and receiving shows, and for webcasting or podcasting.