This may be of use:
https://cravedsp.com/blog/linear-phase-eq-explained
It begins:
Linear Phase EQ Explained
30 May 2017
Linear phase EQ is the most transparent sounding type of equalization, however, it can create some very undesirable side effects, namely increased latency and pre-ringing. In this article we'll take an in-depth look at linear phase EQ and provide some valuable tips on how to minimize pre-ringing.
Linear Phase EQ is Transparent
Linear phase EQ is perfectly transparent because, as the name implies, there are no differences in the phase of the audio across the frequency spectrum. Phase changes introduce coloration which is usually not a problem, but if phase coloration is unwelcome in your audio then linear phase EQ will provide the transparency you need.
Linear phase EQ Introduces Latency
Linear phase EQ can introduce noticeable latency which means it is not suitable for scenarios where latency is an issue such as live performances.
Linear Phase EQ Produces Pre-Ringing
The biggest drawback to linear phase EQ is pre-ringing which is highly undesirable in audio. The amount of pre-ringing is governed by the shape of the EQ curve (in fact there is a precise mathematical relationship between the EQ curve and the amount of pre-ringing for linear phase EQ). This means pre-ringing can be controlled by changing the EQ curve. Some plugins attempt to suppress pre-ringing for you, but as a result you're not getting the curve (or phase) you think you are.
In the rest of this article we'll give you some crucial information about the relationship between EQ curves and pre-ringing so you can apply linear phase EQ like a seasoned pro.
https://cravedsp.com/blog/linear-phase-eq-explained
It begins:
Linear Phase EQ Explained
30 May 2017
Linear phase EQ is the most transparent sounding type of equalization, however, it can create some very undesirable side effects, namely increased latency and pre-ringing. In this article we'll take an in-depth look at linear phase EQ and provide some valuable tips on how to minimize pre-ringing.
Linear Phase EQ is Transparent
Linear phase EQ is perfectly transparent because, as the name implies, there are no differences in the phase of the audio across the frequency spectrum. Phase changes introduce coloration which is usually not a problem, but if phase coloration is unwelcome in your audio then linear phase EQ will provide the transparency you need.
Linear phase EQ Introduces Latency
Linear phase EQ can introduce noticeable latency which means it is not suitable for scenarios where latency is an issue such as live performances.
Linear Phase EQ Produces Pre-Ringing
The biggest drawback to linear phase EQ is pre-ringing which is highly undesirable in audio. The amount of pre-ringing is governed by the shape of the EQ curve (in fact there is a precise mathematical relationship between the EQ curve and the amount of pre-ringing for linear phase EQ). This means pre-ringing can be controlled by changing the EQ curve. Some plugins attempt to suppress pre-ringing for you, but as a result you're not getting the curve (or phase) you think you are.
In the rest of this article we'll give you some crucial information about the relationship between EQ curves and pre-ringing so you can apply linear phase EQ like a seasoned pro.
Statistics: Posted by plexuss — Mon Feb 19, 2024 4:14 am