channel strip

CHANNELSTRIP

-SAMHITA SHILEDAR

A bit about myself I’m Samhita Shiledar from India!

I recently completed my Chemical engineering and working in same field

now. I play piano and sing Indian Classical Music.

This lesson is for week 3 of Introduction To Music Production at Coursera.org

My ppt is about Channel Strips. ‘Channel strip: Teach the signal flow through a channel strip

in a DAW or analog mixing board, describe in detail every component of the channel strip including its usage and position in the signal flow. ’

Hope you guys enjoy ;)

SpecificationsIn my presentation, I will be explaining

channel strip in the analogue desk AUDIENT ASP 8024

WHAT IS CHANNEL STRIP?CHANNEL STRIP allows the output of an

audio device to be amplified by a line level and integrated into some other systems as well

Set of controls for each sound mixer channel makes up what called the channel strip.

The channel strip contains a lot of information, and the visual position of the various functions often doesn’t correspond with the actual flow of the signal.

Input Section

Mic Pre Amp

Insert

Aux Send

EQ

PAN

MUTE/SOLO

Volume faders

INPUT SECTIONInput section is divided into three parts:

1. Channel Path2. Tape return path3. Mic/ line and tape returns signal section

We have an XLR input for mic input, and we have a line input for a line level source.

Channel PathChannel Path:Deals with the recording signal

The meter swap (MTR) switch allows you to display mic/line signals coming into the desk on 20 segment meter. Tape input signal would be then displayed on smaller 3 segment meter

Preamplifier allows you to use the Mic/line signal into the desk.

Press the Mic/line switch to select the input.

Phantom power switch is ON for condenser microphones. Always remember to reduce the gain of speakers while turning phantom power on. And similarly while disconnecting

Phase reverse switch is situated on the channel path. It reverses the phase of signal being recorded and not the signal coming back from our recording device

High pass filter can be used to get rid of any low frequency

Insert ontape

returnpath

Insert onChannelpath

Insert points are used to place dynamic processing such as a compressor into a path. It places into the recording path. This means that output from your processing device would be recorded and can not be undone. Thus if you are unsure of processes, you can insert on tape return path. Here settings are applied after the track is being recorded.

The insert points are a convenient way to bypass a process without having to find bypass button on unit itself.

Tape return pathTape return path: Deals with the signal after being recorded

Tape trim: Tape input has a trim control of plus minus 15dB. This allows you to trim levels which have been recorded too hard. You should always aim to get good signal to noise ratio on your recording device. Else tape trim is used.

Mic/ line and tape returns signal sectionMic/ line and

tape returns signal section

3 segment meter

20 segment meter

Measures the signal when it is recorded and after it is being recorded.

20 segment meter shows the tape input signal. It is the return signal from the device into the desk after it is being recorded

3 segment meter gives the indication of the mic line signal coming into the desk

Mic PreampThis is going to be our input level.

We can use this to set levels, just like you do on your audio interface when recording.

Signal metering A 20 segment peak reading led bargraph provides channel metering in the long fader path, and a 3 segment led bargraph indicating signal present, normal level, and overload, in the short fader path. The meter functions can be reversed if required.

Inserts for channel paths

Both the mic/line path and monitor/mix paths have their own balanced inserts with individual “insert in” switches.

Multitrack Buses: Multitrack buses are assigned via 12 individual switches in combination with a shift button allowing access to buses 13-24. The assignment section can be accessed from either the short or long fader paths, pre or post pan.

Auxillary Master SectionControl overall level of aux outputs. A

balanced or mixed bus can be created by using controls on the channel strip.

Overall created by auxillary master controls

Auxiliary sends

Mute

Auxiliary Buses

Auxiliary Buses: A total of 14 Auxiliary send buses can be accessed via 8 controls. Controls 1 to 6 can be reassigned to buses 7 to 12, and are switched in pairs to the short fader path and also pre / post the relevant fader. This leaves 2 controls permanently assigned to Auxiliary A and B buses, individually switched to the short fader path. These are normally used for artists foldback purposes, although they can be switched post fader if required for extra sends

A flexible Auxiliary bus combining facility on the Master module allows the 2 independent signals within a channel to access the same Effects device. Should extra sends be needed a single button push will allow the short fader to become a post long fader send accessing the 24 track assignment buses, with or without panning. This flexibility and more, is achieved clearly and simply by having consistently positioned and labelled controls, together with informative backlit indication of which signal source is in which signal path.

EQ SectionEqualisers: During the mix phase the short

fader path is often used to provide extra inputs to the mix, any or all of which may require EQ and Effects processing.

EQ section:Equalisers are what would be referred to as

tone controls.EQ is mainly associated with long fader signal

path.IN switch places the equalizer in circuit. SF switch places the equalizer into short fader

signal path.Aim is to treat the signal before it is recorded.

EQ INSF Switch

Shelving EQ

Parametric EQ

EQ is split into two parts:

1.Shelving EQ: Has high frequency boost / cuts at 10kHz to 18 kHzLow frequency boost or cuts at 50Hz and 100 Hz

2.Parametric EQHas high frequency boost cuts and low frequency boost cuts Frequency Sweep: Controls the centre frequency of high

mid and low mid EQ.Q factor: adjust the width of the frequency to be attenuated

HF boost/cut10kHz to 18 kHz

switch

LF boost/cut 50Hz and 100 Hz switch

HMF boost/cut

LMF boost/cut

Frequency sweep

Q factor

Routing sectionIt is situated directly below the input section

of each channel.While recording, this allows us to route the

channel path to the recording device.

Short fader controlsShort fader controls:

Fader, mix, pan, cut, solo and long fader link controls for the short fader path.

Long fader controlsFader, mix, pan, cut, solo

and fader flip for the long fader path.

Normally the tape return signal, that is the signal coming back from your device is fed to the long fader signal path.

When flip switch is pressed, it will feed the short fader signal path. Long fader will then become the channel path input.

THANK YOU!

REFERENCES:http://www.dummies.com/how-to/content/

home-recording-mixer-basics-channel-strip.html

http://www.youtube.com/watch?v=2Qez7VsawLI&feature=share&list=PL83AA8CC2E6E3BD9F

http://www.youtube.com/watch?v=R_zfCSeTKPo&feature=share&list=PL83AA8CC2E6E3BD9F

http://audient.com/tours/asp8024/index.htmlhttp://documentation.apple.com/en/logicpro/

usermanual/index.html#chapter=27%26section=12%26tasks=true

http://www.wikipedia.org/