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Comment Re:Not much biomass in a rat. (Score 2) 113

Well, there's Telstrat -- they're huge in Australia.

And in spite of their lossiness there's something to be said for Adaptive Multi-Rat codecs, rght?

At this rate, the 60GHz band will crowd up with (spatially) narrow yet energetic beams from all kinds of gadgets, too, soon. I think I'm tingling with excitement.

Comment Re:So what? (Score 1) 98

Reminds me of the time I did a fast Fourier transform on a HP calculator. It really redefined the meaning of fast.

Lots of people, you know, that likes to hack stuff and try to defy normality... But it's k, you stay in your cozy little world

I hate to say this, but actually it's not k.

It's [k - 1]. But that's okay, just set the right radix and cache the twiddle factors in advance. #FastFourierTilTheDay

Comment Re:So what? (Score 1) 98

Reminds me of the time I did a fast Fourier transform on a HP calculator. It really redefined the meaning of fast.

Lots of people, you know, that likes to hack stuff and try to defy normality... But it's k, you stay in your cozy little world

I hate to say this, but actually it's not k.

It's [k - 1]. But that's okay, just set the right radix and cache the twiddle factors in advance. #FastFourierTilTheDay

Comment Re:So what? (Score 1) 98

Reminds me of the time I did a fast Fourier transform on a HP calculator. It really redefined the meaning of fast.

Lots of people, you know, that likes to hack stuff and try to defy normality... but it's k, you stay in your cozy little world

I hate to be pedantic, but actually it's not k. It's [k - 1]. But that's okay as long as one precaches the twiddle factors. #FastFourierTilTheDay

Comment Re:"Industry desire" is all good and well (Score 1) 382

I know this is a sarcasm thread, but 24 bits is actually a lot for an ADC. You're talking 0.2uV/LSB with a 3.3V reference. Even getting close to that requires careful attention to noise sources and PCB layout. 16 bits is pretty hardcore in its own right. 8-, 10-, and 12-bit ADCs are far more common.

But it's about headphone jacks, isn't it? No ADCs involved.

DACs for audio are cheap as chips, and tiny: something like TI's PCM1795 outputs two channels of 32-bit samples at 192kHz with a 120db SNR, costs less than a buck in bulk, and comes in a minuscule package (something like 1 x 0.5mm). Add another buck for a clean signal path plus a solid Neutrik-style connector and it's well underway. But the question is then, where could they put in all the DRM?

Comment Re:"Industry desire" is all good and well (Score 1) 382

I know this is a sarcasm thread, but 24 bits is actually a lot for an ADC. You're talking 0.2uV/LSB with a 3.3V reference. Even getting close to that requires careful attention to noise sources and PCB layout. 16 bits is pretty hardcore in its own right. 8-, 10-, and 12-bit ADCs are far more common.

But it's about headphone jacks, isn't it? No ADCs involved.

DACs for audio are cheap as chips and tiny: something like TI's PCM1795 outputs two channels of 32-bit samples at 192kHz with a 120db SNR, costs less than a buck in bulk, and comes in a minuscule package (something like 1x0.5mm).

Comment Re:"Industry desire" is all good and well (Score 1) 382

I know this is a sarcasm thread, but 24 bits is actually a lot for an ADC. You're talking 0.2uV/LSB with a 3.3V reference. Even getting close to that requires careful attention to noise sources and PCB layout. 16 bits is pretty hardcore in its own right. 8-, 10-, and 12-bit ADCs are far more common.

But it's about headphone jacks, isn't it? No ADCs involved.

DACs for audio are cheap as chips and tiny: something like TI's PCM1795 outputs two channels of 32-bit samples at 192kHz with a 120db SNR, costs less than a buck in bulk, and comes in a minuscule package (something like 1x0.5mm).

Comment Re:"Industry desire" is all good and well (Score 1) 382

I know this is a sarcasm thread, but 24 bits is actually a lot for an ADC. You're talking 0.2uV/LSB with a 3.3V reference. Even getting close to that requires careful attention to noise sources and PCB layout. 16 bits is pretty hardcore in its own right. 8-, 10-, and 12-bit ADCs are far more common.

But it's about headphone jacks, isn't it? No ADCs involved.

DACs for audio are cheap as chips and tiny: something like TI's PCM1795 outputs two channels of 32-bit samples at 192kHz with a 120db SNR, costs less than a buck in bulk, and comes in a minuscule package (something like 1x0.5mm).

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