u/AliraAudio

Building a Custom Raspberry Pi DSP Platform – Interested to Hear What People Think

Hey everyone,

For the last few months I’ve been working on a project called “Alira Core”. It started as a personal DSP project but it’s slowly turning into something much bigger.

Unlike a lot of Pi DSP projects, this isn’t built around CamillaDSP or existing DSP software — I’m writing the DSP engine and control system myself.

Current features working so far:

- 8-channel routing

- 8-channel output matrix

- Parametric EQ on every channel

- High-pass and low-pass crossovers

- Delay per channel

- Polarity invert

- Mono summing

- Real-time web UI control

- Mobile/tablet control from any device on the network

- Low-latency audio pipeline

Currently working on:

- FIR filter support

- further optimisation

- UI improvements

- expanding the routing architecture

The hardware side at the moment is Raspberry Pi based, but the long-term goal is to build a flexible DSP platform that could be used for things like:

- active speakers

- DSP amplifiers

- home audio

- live sound

- studio monitoring

- custom installs

A lot of DSP platforms out there feel either very closed off, outdated, or limited in routing flexibility, so I wanted to build something that feels more modern and modular.

I’d be really interested to know:

- Is this something you’d actually use?

- What features would you expect from it?

- What would make you choose it over something like miniDSP?

reddit.com
u/AliraAudio — 7 days ago

Building a Custom Raspberry Pi DSP Platform – Interested to Hear What People Think

Hey everyone,

For the last few months I’ve been working on a project called “Alira Core”. It started as a personal DSP project but it’s slowly turning into something much bigger.

Unlike a lot of Pi DSP projects, this isn’t built around CamillaDSP or existing DSP software — I’m writing the DSP engine and control system myself.

Current features working so far:

- 8-channel routing

- 8-channel output matrix

- Parametric EQ on every channel

- High-pass and low-pass crossovers

- Delay per channel

- Polarity invert

- Mono summing

- Real-time web UI control

- Mobile/tablet control from any device on the network

- Low-latency audio pipeline

Currently working on:

- FIR filter support

- further optimisation

- UI improvements

- expanding the routing architecture

The hardware side at the moment is Raspberry Pi based, but the long-term goal is to build a flexible DSP platform that could be used for things like:

- active speakers

- DSP amplifiers

- home audio

- live sound

- studio monitoring

- custom installs

A lot of DSP platforms out there feel either very closed off, outdated, or limited in routing flexibility, so I wanted to build something that feels more modern and modular.

I’d be really interested to know:

- Is this something you’d actually use?

- What features would you expect from it?

- What would make you choose it over something like miniDSP?

reddit.com
u/AliraAudio — 7 days ago

Working on a scalable DSP routing platform for active speaker setups

Been working on the routing architecture for the next version of my DSP platform.

The goal is to make active DSP systems feel much simpler and more approachable to use without losing flexibility.

Right now I’m working on:

- scalable routing matrix

- per-channel crossovers

- output trim

- delay per channel

- preset management

- phone-based control UI

I’m trying to keep the interface understandable instead of going full “pro audio software” 😅

Still early in development, but I’d genuinely be interested to hear what features people actually use most in their DSP/active setups

A lot of the architecture work I’m doing now is aimed toward a future 4-channel amplifier with additional DSP-controlled outputs for active speaker and subwoofer setups.

The main focus is keeping the routing and crossover side powerful, but still simple to actually use day to day

u/AliraAudio — 9 days ago

Quick demo of the preset system I’ve been working on.

Each preset stores a full DSP setup (EQ, compression, limiter, filters), so you can switch between completely different sound profiles instantly.

The 'night' preset is just for demo purposes only due to my phone mic not being able to properly capture the low cut so you could hardly hear the difference due to the way my phone processes video audio.

Feedback welcome as always

u/AliraAudio — 17 days ago

I’ve been working on a DSP-powered amplifier that runs on a Raspberry Pi, with everything controlled from a phone UI.

The idea is to keep it simple to use (presets, volume, input switching), but also have a more advanced section if you want to tweak things like EQ, compression, and limiter.

At the moment this is based on a 2 channel amplifier with plans for 4 channel amplifier with FIR filters and room correction in the future.

It’s still in the refinement stage before at the moment, but I wanted to get some honest feedback — especially on the UI and overall concept.

Would something like this actually interest you, or does it feel like overkill for most setups?

u/AliraAudio — 21 days ago