{"product_id":"hifiberry-dac-dsp","title":"HiFiBerry DAC+ DSP","description":"\u003cp\u003eHere it is: the \u003cstrong\u003eDAC+ DSP\u003c\/strong\u003e! It is the board you always wanted but were afraid to ask for!\u003c\/p\u003e\n\u003cp\u003eThe HiFiBerry DAC+ DSP is a high-resolution digital-to-analogue converter for the Raspberry Pi (newer models with 40 pin GPIO connector). It combines a Burr-Brown DAC used on the HiFiBerry DAC+ with digital input and output - and also comes with a powerful digital signal processor.\u003c\/p\u003e\n\u003cp\u003eThe DAC+ DSP uses the same full-featured DSP that is used on the Beocreate 4-channel amplifier and combines it with digital inputs and outputs and a stereo analogue output.\u003c\/p\u003e\n\u003cp\u003eWe wanted to offer the maker community a DSP that they can use in any way they like, without pre-defined filter setups or “applications”, but full access to the DSP. This allows you to create DSP programs for all kinds of applications – not just simple crossovers or equalisers.\u003c\/p\u003e\n\u003cp\u003eWe now stock the DAC+ DSP Backplate, allowing you to fit this HAT into the HiFiBerry Universal Steel Case for Raspberry Pi  5 and the Pi 4 version!\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eStereo analog output (sample rates up to 192kHz\/24bit)\u003c\/li\u003e\n\u003cli\u003eStereo digital input and output (input up to 96kHz, output up to 192kHz)\u003c\/li\u003e\n\u003cli\u003e300 MHz Digital Signal Processor (6144 instructions per sample incl. FFT and FIR accelerators)\u003c\/li\u003e\n\u003cli\u003eDedicated 192kHz\/24bit high-quality Burr-Brown DAC\u003c\/li\u003e\n\u003cli\u003eHigh-quality asynchronous sample rate converter that can upsample\/downsample\/mix audio sources\u003c\/li\u003e\n\u003cli\u003eOnboard EEPROM allows to board to boot and run even without the Raspberry Pi\u003c\/li\u003e\n\u003cli\u003eUsers can upload programs developed with Analog’s SigmaStudioStereo input and output\u003c\/li\u003e\n\u003cli\u003eConnects directly to the Raspberry Pi, no additional cables needed\u003c\/li\u003e\n\u003cli\u003eNo soldering, comes as a pre-fabricated kit. You just plug it onto the Raspberry Pi, it is conform to the Raspberry Pi hardware-attached-on-top (HAT) specification.\u003c\/li\u003e\n\u003cli\u003eCompatible with all Raspberry Pi models with a 40-pin GPIO connector\u003c\/li\u003e\n\u003cli\u003eDirectly powered from the Raspberry Pi, no additional power supply\u003c\/li\u003e\n\u003cli\u003eGold-plated RCA output connectors\u003c\/li\u003e\n\u003cli\u003eComes with all components required to mount it. We include 4 M2.5x12mm spacers to fix the board onto the Raspberry Pi\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDAC Maximum Output Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.1Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDAC Signal-to-Noise Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e112dB (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDAC THD+N\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-93dB (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 3W (depends on the program running on the DSP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSample Rates\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e44.1–192kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDSP Processing Capabilities\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFull DSP functionality with DSP program development in Analog’s SigmaStudio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax IIR Filters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 1000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax FIR Filter Taps\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 8000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInternal Sample Size for DSP Calculations\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32-bit decimal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDatasheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eUse Cases\u003c\/h3\u003e\n\u003cp\u003eWhat can you do with it? A lot – just get creative! Here are some example use cases:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUse it as a ‘DAC on steroids’\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe easiest thing to do is to use the DSP\/DAC as a DAC for the Raspberry Pi to play back music – as you would do this with our “normal” DAC+ boards. But in this case, you have the added benefit of a high-performance DSP to adjust for your particular needs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUse it as a standalone DAC\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor those of you who have an old CD player or TV to play back music, just connect the TOSLink output of your CD player or TC to the TOSLink input of the board and get the analogue signal on the RCA output. You can even do this without the Raspberry Pi. However, you need to feed 5V to the board as it would normally be powered by the Raspberry Pi.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUpsample\/downsample digital music sources\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMany audiophiles fear sample rate conversions! There are a lot of discussions about “being bit-perfect”, however it’s a simple fact that basically all DACs on the market do not perform equally well on all sample rates.\u003c\/p\u003e\n\u003cp\u003eSome people might prefer 48kHz playback, others want to use the highest available sample rate of 192kHz (that’s the limit of SPDIF).\u003c\/p\u003e\n\u003cp\u003eDo you have any preferences? With different DSP settings, you can try by yourself to see what works best for you. The performance parameters of the integrated asynchronous sample rate converters (dynamics, distortions) are better than the analogue performance of your DAC. Don’t be afraid to try it out.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRoom equalisation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe major challenges in audio playback aren’t the electronics. While different components can have an impact on audio performance – there is one component that definitely will have a huge impact – the room that you’re listening in.\u003c\/p\u003e\n\u003cp\u003eThe same electronics and speakers can sound very different in different rooms. Not only the walls of a room, but every piece of furniture in it will reflect parts of the sound waves and absorb other parts. Especially in the low-frequency range, where there is a lot of absorption which can create all kinds of problems.\u003c\/p\u003e\n\u003cp\u003eSome frequencies might be very loud, others might be almost inaudible. This is normal and you can’t completely eliminate the effects of rooms acoustics. However, you can improve the performance of your setup. The easiest way to do this is to find room resonances and reduce the volume of the sound at these specific resonance frequencies.\u003c\/p\u003e\n\u003cp\u003eSounds complicated? Luckily there are tools like\u003cspan\u003e \u003c\/span\u003eREW\u003cspan\u003e \u003c\/span\u003ethat do a lot of the measurements and calculations for you already. We’ve already created a\u003cspan\u003e \u003c\/span\u003eguide how to use REW with our DSP toolkit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChange DSP parameters on the fly\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDo you have some cool ideas to change the parameters of a DSP program on the fly? What about dynamic reduction that automatically gets activated at night? Yes, we all love high dynamics, but sometimes our neighbours don’t. Or you want to use a different equaliser set for TV playback than for music playback?\u003c\/p\u003e\n\u003cp\u003eEverything is possible. The DSP can be programmed directly from the Raspberry Pi. You can change parameters with simple command-line tools.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnect your I2S DAC\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe already see a lot of users using our DAC+ Pro to connect external I2S DACs. With the DAC+ DSP this will be much easier. The reason for this is the fact that you can select specific I2S output formats with the DSP\/DAC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote\u003c\/strong\u003e: This is really something for advanced users. You should know a lot about I2S and you should also be able to debug this with an oscilloscope.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAnd many more!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWith Analog’s SigmaStudio, you can create your own DSP program and implement whatever you like. What about an adaptive loudness function? Check out\u003cspan\u003e \u003c\/span\u003ethis project. Want to run FIR filters? You can easily run two 4000-tap FIR filters on this powerful DSP.\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"HiFiBerry","offers":[{"title":"Default Title","offer_id":46982520471724,"sku":"bbo1787257814879","price":73.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3858\/0140\/files\/hifiberry-dac-dsp_1.jpg?v=1787257824","url":"https:\/\/findnuvorio.com\/products\/hifiberry-dac-dsp","provider":"Findnuvorio","version":"1.0","type":"link"}