DSPi: A fully featured audio DSP firmware for the Raspberry Pi Pico (RP2040) and Pico 2 (RP2350)
The DSPi firmware transforms a Raspberry Pi Pico or other RP2040-based board into a digital audio processor with various features like room correction and parametric EQ. It acts as a USB sound card with an onboard DSP engine, allowing for essential tools like loudness compensation and headphone crossfeed. The firmware supports multiple platforms, including macOS, Windows, Linux, and iOS, and offers a range of features like per-channel preamp, matrix mixer, and volume leveller.
- ▪The DSPi firmware supports 16-bit and 24-bit PCM input at 44.1, 48, and 96 kHz sample rates.
- ▪It has a 24-bit S/PDIF or I2S output with up to four independent stereo output slots.
- ▪The firmware has a parametric equalization feature with up to 10 PEQ bands per channel and 6 filter types.
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Story provenance
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Record
| Original publisher | GitHub |
| Canonical URL | https://github.com/WeebLabs/DSPi |
| Publication time | Fri, 26 Jun 2026 01:17:11 -0500 |
| Retrieval time | 2026-06-26T06:37:29.198Z |
| Last seen | 2026-06-26T06:37:29.198Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | S8y4A7tWK5UT |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
DSPi Firmware DSPi transforms a Raspberry Pi Pico or other RP2040-based board into a very competent and inexpensive little digital audio processor. It acts as a USB sound card with an onboard DSP engine, allowing you to make use of essential tools like room correction, active crossovers, parametric EQ, time alignment, loudness compensation, and headphone crossfeed. It is my hope that the RP2040 and RP2350 will garner a reputation as the "swiss army knife of audio for less than a cup of coffee".
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Excerpt limited to ~120 words for fair-use compliance. The full article is at GitHub.