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Subject: Re: Sound Quality Settings

Re: Sound Quality Settings

From: Brent Harding <bharding_at_doorpi.net>
Date: Wed, 1 Nov 2006 14:43:50 -0600

Will Rockbox play lower bitrate files, say at 24 or 32 kbps?

----- Original Message -----
From: "Onj" <onj_at_AndreLouis.COM>
To: "Rockbox" <rockbox_at_cool.haxx.se>
Sent: Wednesday, November 01, 2006 10:35 AM
Subject: Re: Sound Quality Settings

> Bitrates from 64 up to 320 is it? Are mp3 bitrates. the 900 is wv,
> wavepak,
> and the last is uncompressed pcm, my personally preferred method of
> recording anything.
> I hope that helps.
>
> ----- Original Message -----
> From: "Rich De Steno" <ironrock_at_verizon.net>
> To: <christof_at_infinitus.co.uk>; "Rockbox" <rockbox_at_cool.haxx.se>
> Sent: Wednesday, November 01, 2006 4:13 PM
> Subject: Re: Sound Quality Settings
>
>
> | When I go into recording settings in the menus, I hear choices for
> Quality
> | and Frequency. The Frequency is set at 44 and cannot be changed, but
> the
> | Quality has many bit rate choices such as 128, 192 etc. Are you saying
> this
> | setting is irrelevant? I don't hear anything about choosing to record
> in
> | MP3, is this an option somewhere in the menus? I also don't hear any
> option
> | for setting the time and date like I used to do on my old Archos with
> | Rockbox. Sorry, but the quality and frequency recording settings
> choices
> | have really confused me.
> |
> | ----- Original Message -----
> | From: "Christopher Woods" <christof_at_infinitus.co.uk>
> | To: "'Rockbox'" <rockbox_at_cool.haxx.se>
> | Sent: Wednesday, November 01, 2006 10:39 AM
> | Subject: RE: Sound Quality Settings
> |
> |
> | >I don't have that build installed, but to me it sounds like the bitrate
> | > option is just shown all the time, even though its setting only
> actually
> | > applies if you have MP3 chosen as your destination file format.
> | >
> | >> -----Original Message-----
> | >> From: Thom Johansen [mailto:thomj_at_pvv.ntnu.no]
> | >> Sent: 01 November 2006 14:01
> | >> To: Rockbox
> | >> Subject: Re: Sound Quality Settings
> | >>
> | >> Rich De Steno wrote:
> | >> > I use Rockbox with the voice option. I installed an
> | >> updated version
> | >> > of Rockbox from a few days ago on my Iriver H120 and I noticed some
> | >> > changes from my previous version, including a choice of
> | >> recording bit
> | >> > rates. I know that bit rate determines the quality of MP3
> | >> files, but
> | >> > I did not know that bit rates were associated with WAV files. What
> | >> > was the bit rate at before we had a choice? Has the bug been fixed
> | >> > yet relating to not being able to stop a recording with the STOP
> | >> > button? Are there any plans to allow for recording in the
> | >> Ogg Vorbis
> | >> > or some other more compact format? How about ability to
> | >> set the clock?
> | >>
> | >> The bit rate for WAVs is decided by the number of bits per
> | >> sample, the number of channels and the sample rate. At 44100
> | >> Hz sample rate, stereo and 16 bit samples, the bit rate is
> | >> 1411 kbps, which is AFAIK the only bit rate Rockbox has been
> | >> capable of recording since recording was included. Right now
> | >> there's also an option to record mono files, which would
> | >> halve the bit rate. Also, as far as I know, you really don't
> | >> have a choice now either. The only WAV quality option I can
> | >> find is the full quality one.
> | >> As for recording in more compact formats, we currently
> | >> support MP3, which as you probably know is lossy, and Wavpack
> | >> (WV) which is a lossless format.
> | >> Ogg Vorbis will probably not be supported for a good while
> | >> thanks to seeming to need a more powerful CPU than we have in
> | >> what targets we currently support.
> | >> What do you mean about setting the clock? Sample rate? If so,
> | >> this is something you can expect seeing in the not too distant
> future.
> | >>
> | >> Thom
> | >>
> | >>
> | >
> |
> |
>
>
Received on 2006-11-01


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