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Subject: Re: Sound Quality Settings

Re: Sound Quality Settings

From: Onj <onj_at_andrelouis.com>
Date: Wed, 1 Nov 2006 16:35:35 -0000

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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