For vinyl that’s groove width (how many grooves you can accomodate per side, which affects total length), and the maximum practical modulation velocity and excursions. Analog media (eg analog tape, phonographs) do not have a hard upper limit on level instead it’s dictated by many things. Anything over that get clipped/distorted, so working up to, but NOT over that limit, is essential. With digital consumer audio formats the maximum level, the ceiling, is a hard limit. The concept of “room” (aka dynamic range) is different for different media. Wish they’d add even more range to that, but oh well. As for streaming, I believe there’s actually a benefit of some of the entrenched platforms in that they will forcibly reduce volume to somewhere between -10 and -16dB (Can’t remember) average perceived loudness, which sort of stops people from pushing things way too far. Conveniently the lows are the part that *should* be loud in the first place if your recording is of common types of music with drums, so there you go.Īs for CD’s / basic digital audio that isn’t low-bitrate streaming it’s not common but once or twice I found something mastered with a bit more range. So if you engineer it as loud as you can without screwing up the mids or highs, then you’ll still have a fair amount of range left in the lows where a drum hit can come in at above the average volume level every now and then. Supposedly the result is that you’ve actually got more room in the lows than in the highs rather than it being brought back to flat. The simple explanation I’ve heard a few times and can’t confirm is that there’s credit due to the RIAA curve, without which a low frequency would cause the needle to travel farther than a high frequency for the same actual rate of movement because of the longer time. Posted in digital audio hacks, Raspberry Pi Tagged audio, raspberry pi, streaming, vinyl Post navigation And if you have found yourself a turntable, of course you’ll need to know how to set it up properly. Meanwhile if you’re one of the streaming generation seduced by round plastic discs, we’ve gone into some detail about their audiophile credentials in the past. We’re guessing that a more humble interface coupled to an older RIAA pre-amp could cut the cost further, and we’d be hugely curious as to whether a simple mic pre-amp could be used alongside some DSP from the likes of Gnu Radio to give the RIAA response.Įither way, he’s made a handy device for any 21st-century vinyl fan. This acts as the source for the DarkIce audio streamer and the IceCast2 media serer, all of which even with the cost of a Pi and the interface, is considerably less than the commercial device. has a far better solution, in the form of a Raspberry Pi loaded with open source software.Īt the vinyl end is a Behringer audio interface containing a pre-amp with the required RIAA response curve. Sonos will sell you a box to do that of course, but it’s as overpriced as 2023-pressing vinyl. Hi-fi itself has moved on from the analogue into the digital, so what can be done if your listening comes through a Sonos system. What was once old hat is now cool again, but for freshy minted vinyl fans there’s a snag. One of the unexpected success stories in the world of hi-fi over the past decade has been the resurgence of the vinyl LP as a musical format.
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