> You might have a little look at the Rockbox project - it's a mature
> FOSS replacement OS for personal music players. It won't (yet) do
> exactly what you're asking, but I'm be fairly sure that one or two
> people will have suggested such a direction on the forums over the
> years.
>
> On 7 January 2013 22:13, Len Ovens wrote:
>>
>> On Mon, January 7, 2013 9:42 am, Johannes Kroll wrote:
>>> On Sun, 6 Jan 2013 08:48:35 -0800
>>> "Len Ovens" wrote:
>>
>>>> As for hacking the unit itself, the first question is why. Not so much
>>>> why
>>>> you want to, but why would others want to. Before something gets the
>>>> firm/software hacked there generally needs to be a reason at least a few
>>>> people want to do so. Some extra functionality that is obvious (the
>>>> smart
>>>> phone has so much locked functionality it is frustrating so there are
>>>> lots
>>>> of hacks). The dr already seems to me to anything I would think of using
>>>> it for,
>>>
>>> As to why, I can think of a few things:
>>>
>>> - triggering recording at fixed time intervals, or based on some audio
>>> event like raised volume, or based on some external event, e. g. for
>>> syncing to a video camera
>>> - implementing USB audio so the device can be used as an external
>>> microphone. The recorders I've seen only output an analog signal.
>>> - changing recording parameters like custom sampling rates or different
>>> encodings. Commercial ones mostly do uncompressed WAV or MP3, but no
>>> lossless compression like FLAC for example.
>>>
>>> Other people probably have other ideas...
>>
>> I was not trying to say it shouldn't be hacked, just that there needs to
>> be a large enough group of people who also see a need (or a why) for
>> hacking it before there is much support (so that you are not doing the
>> whole thing on your own). Those are all good reasons you have above (none
>> of which I had thought of) I am sure more would show up out of need too.
>>
>>> Last not least, I simply like the idea of being in control of hardware
>>> I buy.
>>
>> Nothing wrong with that.
>>
>>> As to price: the DSO nano is a free/open source oscilloscope which
>>> isn't expensive at all, so building free and inexpensive hardware is
>>> possible. Actually, using the DSO nano as a base could be a good
>>> start for a recorder, it has A/D converters, mass storage and
>>> everything... Just no mics.
>>
>> It could be a good base, but I think you may wish to add an A/d converter
>> with more than 4bit sample depth (at least it looks like to me) and single
>> channel. The sample rate is fine (though not fixed but variable so I don't
>> know how easy to set to 48k or whatever), but takes lots of CPU as the cpu
>> becomes part of the codec. However, there are lots of unused pins (i/o
>> ports) on the cpu and it is open so the possibility of adding something is
>> there. There is a schematic in the manual on
>>
http://www.seeedstudio.com/depot/micro-digital-storage-oscilloscopedso-n...
>> for download which is where I got my info.
>>
>> It has a display, buttons, battery, USB port, etc. I might be tempted to
>> add a second USB port (host instead of client) and use one of the cheap
>> USB audio ports (parts all in the USB plug) and some mics. I just found
>> a great site for DIY mics That has some better pres than what comes with
>> the little electrets. (its on my other computer :P )
>>
>>
>> --
>> Len Ovens
>>
www.OvenWerks.net
>>
>> _______________________________________________
>> Linux-audio-user mailing list
>>
Linux-audio-user@lists.linuxaudio.org
>>
http://lists.linuxaudio.org/listinfo/linux-audio-user
> _______________________________________________
> Linux-audio-user mailing list
>
Linux-audio-user@lists.linuxaudio.org
>
http://lists.linuxaudio.org/listinfo/linux-audio-user
>