HDCD PLAYBACK?

[hablushnex]

hi im planning to buy a sansa zip and rockbox it.
i was wondering if rockbox supports HDCD encoding in FLAC and WAVPACK files, and if it supports different bit rates like 24B/96 and such
thanks

[saratoga]

No you'd have to decode the hdcd part before converting to flax.

Rockbox doesn't run on any hardware that can do more then 16 effective bits, and 96 k is s huge waste of battery. For best results you should decode hdcd to 20 bit pcm and then dither down to 16 bit for Rockbox.

[[Saint]]

Rockbox doesn't run on any hardware that can do more then 16 effective bits

That's not entirely true, the Hifiman players can all do 24bit playback as far as I'm aware, as well as some Android devices (Galaxy Note 3 is one example and it does 24/192, the Galaxy Player can do 24/96 iirc), but like you said this is largely irrelevant where Rockbox is concerned as all it is going to do (without a rather serious reshuffle in the core) is waste battery when it truncates everything to 16bit.


[Saint]

[saratoga]

Lots of devices will take a 24 bit sample, but I don't think I've ever seen an mp3 player that outputs anything but noise in the 17 the bit.  Hence I don't think we have anything that can do greater than 16 effective bits. Most quality portable devices seem to do 14 or 15 bits into typical headphones.

[hablushnex]

so what is the simplest way to convert an HDCD file to 16 bit FLAC?

[saratoga]

I believe there are instructions for doing so with foobars decoder somewhere on hydrogenaudio.

[hablushnex]

seams quite a mess and it looks the magor problem is just the PEAK EXTENSION, to avoid clipping when playing some HDCD files without a plugin