Equalisation is the process of balancing frequency components. it is mainly used to match a recorded sound to its original source, meaning that when you get a rough recording of a sound by Equalising the sound, you are manipulating the frequency pattern that the original sound has. There is different types of eq that you can use, some are in softwares, for example: logic pro Chain EQ which you can use about 8 bands of frequency. One example of using a channel EQ is if you have background noise, you can find where the background noise is in the audio. You can eliminate the sound by choosing the hertz of the frequency and remove it. As well as the software you can also EQ by using hardware, hardware tends to be more expensive but it is more delicate, that means if you remove 2 DB's of frequency you can really notice the difference, it also takes more practice and 4 bands in most cases. You also have specific filter types which are: - High paths and low paths filter. High path filter allows high frequencies to Be heard, it blocks or compresses low frequencies. Low path filter allows low frequencies to go through and blocks or compresses high frequencies. - Shelving Filter Is often used to reduce or increase signals above or below a set frequency. - Graphic Equalisation You will often find these in softwares, the input signal gets sent to a group of filters, each filter passes the position of the signal and presents it's own frequency range. To boost or cut frequency components, you would often use a slide control. - Parametric Equaliser Are a multi band equaliser which allows you to control the parameters, which have an amplitude centre frequency and a band width. In the olden days you never had much options like you had now, you could only adjust the bass and the treble. Now you would get an accurate type of Equalisations which can be hardware and software, were in the olden days you couldn't due to the lack of knowledge at the time.
Question 2: What is the polar pattern called that the U47 used for recording vocals? What is the polar pattern of the other microphone that was used previously? Why do you think the directional ability of the U47 helped in the recording process in this particular case?
U47 uses the cardoid polar pattern because the majority of sound pick up is from the front, meaning that reflections from surfaces behind the microphone are not picked up as much. This is great for vocals because the sound is projected from someones mouth straight into the microphone. There is no need to pick up sound from behind the microphone.
The other microphone uses a bi-directional polar pattern, it is called the RCA 44 ribbon microphone. Compared to the RCA the U47 is much more suited to record vocals with because as I previously explained, it blocks out sound from behind the microphone.
U47 uses the cardoid polar pattern because the majority of sound pick up is from the front, meaning that reflections from surfaces behind the microphone are not picked up as much. This is great for vocals because the sound is projected from someones mouth straight into the microphone. There is no need to pick up sound from behind the microphone.
The other microphone uses a bi-directional polar pattern, it is called the RCA 44 ribbon microphone. Compared to the RCA the U47 is much more suited to record vocals with because as I previously explained, it blocks out sound from behind the microphone.
Question 3: Identify 3 differences between using a software mixer (like the one in 'Logic') and a hardware mixing console (Like the Audient 'Zen' mixing desk in the studios).
1. With the mixing desk you have loads of faders and you can connect microphones and instruments, with the mixing desk you can decide which fader the microphone and instrument would go to. So on the mixing desk you can control the levels, gain, control whether to play it back on logic or listen to the live recording. You can change all the EQ's, effects and volumes. So when you edit it on logic everything you control on the mixing desk is the sound you will get onto logic, so if your trying to play back something on logic if you change the gain and levels on the mixing desk you will then be able to hear it.
2. On the software mixer you can organise it, add colours so you are organising the seperate tracks in groups.
3. On the software mixer you can add plug ins such as: reverb, compression, dynamic, EQ, pitching etc.
4. On the mixing desk depending on the desk you buy you are given a amount of channels (faders), so on the software mixer you can add many unlimited amount of channels.
5. On the software mixer you can add buses and connect channels to one another. For example if you wanted to edit the electric guitars and you had 2 channels for the electric guitars you can highlight both of the channels and then change the volume, panning, plug ins so they could be the same.
6. You can change between mono and stereo, mono is one general sound in one, and stereo is the track split to 2 ears left and right.
Question 4: What does a DI box actually do? What other benefits are there in using DI boxes in the studio?
A DI box is used to convert types of audio signal to microphone level. If you plugged an instrument straight into a mixer in a microphone level input, it would be very distorted. The reason you would use a DI box in the studio is so it does not distort when it is plugged into the mixer. The other reason why it is helpful, an input and output is not the only I.O.
The DI box is used to connect the instruments such as the: guitar, bass, keyboard, drums and many more to the DI box to record and hear that instrument. You could either connect a microphone and record the specific instrument, by this means some instruments you cant connect a jack lead, you would have to use a microphone, so for the drums you would have to mic it up and connect all the jack leads from the microphones to the DI box. The DI box is also used to Connect a jack lead from the instrument to the DI box so you would only hear the instrument and not pick up any back ground noise, like for example if you were recording with other instruments, because you connected the jack lead from the DI box to the instrument you would only hear that instrument. This method would apply to guitars, Keyboards, Vocal Microphone.
Question 5: If you were wanting to source a simple audio interface for your computer/laptop in order to record a guitar and a vocal at the same time, what main features would it need to have?
Give 2 real-world examples of audio interfaces that would be suitable for this.
1. The Focusrite Scarlett 2i2 Audio Interfaces USB - The reason why this audio interface would be ideal for simple recording, is because it is very small, cheap and very strong due to its aluminium body. The features it has allows you to record both vocals and guitars, Because it has 2 out USB recording interfaces. It is also compatible with every major DAWs and it would work with both PC and macbook. As well as a USB input you have a jack input as well, which means you can record both guitar and vocals at the same time without latency.
2. The Lexicon Alpha Studio USB Audio Interface - Has a stereo line input for keyboards, drum machines or analog output. It has an active balanced input and it expects either balanced or unbalanced signal.
If you wanted to use an electric guitar or bass, there is a front panel input. There is a separate microphone line level input that has individual peak indicators. To balance an audio source there is a monitor mix control, which controls between the live input and the playback level. When your in the middle of recording you can switch to stereo or mono high-powered headphone. You do not need a power supply, you can record on your laptop where ever you are.
1. The Focusrite Scarlett 2i2 Audio Interfaces USB - The reason why this audio interface would be ideal for simple recording, is because it is very small, cheap and very strong due to its aluminium body. The features it has allows you to record both vocals and guitars, Because it has 2 out USB recording interfaces. It is also compatible with every major DAWs and it would work with both PC and macbook. As well as a USB input you have a jack input as well, which means you can record both guitar and vocals at the same time without latency.
2. The Lexicon Alpha Studio USB Audio Interface - Has a stereo line input for keyboards, drum machines or analog output. It has an active balanced input and it expects either balanced or unbalanced signal.
If you wanted to use an electric guitar or bass, there is a front panel input. There is a separate microphone line level input that has individual peak indicators. To balance an audio source there is a monitor mix control, which controls between the live input and the playback level. When your in the middle of recording you can switch to stereo or mono high-powered headphone. You do not need a power supply, you can record on your laptop where ever you are.






