Topics

lowest bit rate for audio books?


john schwery <jschwery@...>
 

What is the lowest bit rate I can use for audio books without losing much sound quality? For example, when I use Baliboka to take text from an ebook.


Carlos
 

This question usually causes a bit of controversy. In my opinion, about 64. Although many will say that for spoken material it doesn't really matter.

----- Original Message -----
From: "john schwery" <jschwery@embarqmail.com>
To: <TechTalk@groups.io>
Sent: Thursday, September 03, 2015 12:54 PM
Subject: [TechTalk] lowest bit rate for audio books?


What is the lowest bit rate I can use for audio books without losing much sound quality? For example, when I use Baliboka to take text from an ebook.



Smiling?
 

It's honestly something that each user needs to determine for themselves,
very very similar to food.

-----Original Message-----
From: Carlos [mailto:carlos1106@nyc.rr.com]
Sent: Thursday, September 03, 2015 10:12 AM
To: TechTalk@groups.io
Subject: Re: [TechTalk] lowest bit rate for audio books?

This question usually causes a bit of controversy. In my opinion, about 64.

Although many will say that for spoken material it doesn't really matter.
----- Original Message -----
From: "john schwery" <jschwery@embarqmail.com>
To: <TechTalk@groups.io>
Sent: Thursday, September 03, 2015 12:54 PM
Subject: [TechTalk] lowest bit rate for audio books?


What is the lowest bit rate I can use for audio books without losing much
sound quality? For example, when I use Baliboka to take text from an
ebook.




Carlos
 

Probably true. You should try creating a few samples at different bitrates until you find one that suits you.

----- Original Message -----
From: "Smiling?" <blind7@sbcglobal.net>
To: <TechTalk@groups.io>
Sent: Thursday, September 03, 2015 1:15 PM
Subject: Re: [TechTalk] lowest bit rate for audio books?


It's honestly something that each user needs to determine for themselves,
very very similar to food.

-----Original Message-----
From: Carlos [mailto:carlos1106@nyc.rr.com]
Sent: Thursday, September 03, 2015 10:12 AM
To: TechTalk@groups.io
Subject: Re: [TechTalk] lowest bit rate for audio books?

This question usually causes a bit of controversy. In my opinion, about 64.

Although many will say that for spoken material it doesn't really matter.
----- Original Message -----
From: "john schwery" <jschwery@embarqmail.com>
To: <TechTalk@groups.io>
Sent: Thursday, September 03, 2015 12:54 PM
Subject: [TechTalk] lowest bit rate for audio books?


What is the lowest bit rate I can use for audio books without losing much
sound quality? For example, when I use Baliboka to take text from an
ebook.








Kwork
 

In my opinion, either 64kbps mono or 128 kbps stereo. Any lower than that,
and my ears can't handle it with my tinnitus. If music, then generally
higher than that.
Travis

----- Original Message -----
From: "john schwery" <jschwery@embarqmail.com>
To: <TechTalk@groups.io>
Sent: Thursday, September 03, 2015 9:54 AM
Subject: [TechTalk] lowest bit rate for audio books?


What is the lowest bit rate I can use for audio books without losing
much sound quality? For example, when I use Baliboka to take text
from an ebook.


Gene
 

You can use lower bit rates if you are creating a monaural file.  I'm speaking of mp3 files.  I haven't read or tested what I am saying with other files.  By a monaural file, I don't mean recording something that is monaural.  I mean that you can encode the actual file as monaural.  If you want a standard bit rate, I would say not to go below 64 monaural.  If you don't care if a bit rate is standard, I would say not to go below about 48kbps monaural.  However, you can experiment and try 32kbps.  there are some audible artifacts introduced, particularly in the way the letter s may sound but if that doesn't bother you, you may want to use 32kbps monaural.  No one can tell you beyond a certain point, what you will or won't find acceptable.  You have to experiment and see.
 
Also, different people hear compressed audio differently.  I'm giving bit rates based on how I hear them.  You may find that what you find acceptable matches what I say or you may find that your experience differs.  You may want to experiment with other bit rates because you hear compressed audio differently.
 
Also, keep in mind that you may hear artifacts to a considerably more extent if you use headphones.  If 32kbps sounds alright to you when listening with speakers and you intend to listen with headphones, evaluate the audio with headphones. 
 
Gene

----- Original Message -----
Gene

Sent: Thursday, September 03, 2015 11:54 AM
Subject: [TechTalk] lowest bit rate for audio books?

What is the lowest bit rate I can use for audio books without losing
much sound quality?  For example, when I use Baliboka to take text
from an ebook.




Walt Smith
 

Agreed -- sometimes, 48 will provide good quality, but 64 is always
satisfactory for spoken material.

-----Original Message-----
From: Carlos [mailto:carlos1106@nyc.rr.com]
Sent: Thursday, September 03, 2015 1:12 PM
To: TechTalk@groups.io
Subject: Re: [TechTalk] lowest bit rate for audio books?

This question usually causes a bit of controversy. In my opinion, about 64.

Although many will say that for spoken material it doesn't really matter.


Donald L. Roberts
 

John, if you ask ten people, you will get ten different answers.  For voice quality, I am very happy with 32 K.  But some will scream abuse at you if you send them something that low.  In another message I posted about twenty minutes ago, I pointed out that by going to 32 K, I reduced the size of the Essential iPhone training folder from 1.2.1 gigs to 124 megs, and the sound of voice recordings is fine to my ear although many will disagree.
 
Don Roberts
 
 

Sent: Thursday, September 3, 2015 9:54 AM
Subject: [TechTalk] lowest bit rate for audio books?
 
What is the lowest bit rate I can use for audio books without losing
much sound quality?  For example, when I use Baliboka to take text
from an ebook.




Ann Parsons <akp@...>
 

Hi all,

Well, this question is questionable but if it's plain mono audio 22050 should be sufficient.

Ann P.

--
Ann K. Parsons
Portal Tutoring
EMAIL: akp@samobile.net
web site: http://www.portaltutoring.info
Skype: Putertutor

"All that is gold does not glitter,
Not all those who wander are lost."


Gene
 

If you are using a bit rate of 32kbps, you will get better results using 2250.  If you are using 64. you should probably leave the sample rate at the default which is something like 44100.  I don't recall the exact default number.  I'm not sure which sample rate might give better results if you use a bit rate of 48kbps.  And as I said, I'm recommending settings based on how I hear compressed audio.  You may want to check both the 2250 and the default 44100 bit rate at 32kbps and 48kbps.  you may want to compare at 64kbps as well but I think at that bit rate, you should the 44100 bit rate.
 
Gene

Sent: Thursday, September 03, 2015 1:53 PM
Subject: Re: [TechTalk] lowest bit rate for audio books?

Hi all,

Well, this question is questionable but if it's plain mono audio 22050
should be sufficient.

Ann P.

--
Ann K. Parsons
Portal Tutoring
EMAIL:  akp@...
web site:  http://www.portaltutoring.info
Skype: Putertutor

"All that is gold does not glitter,
Not all those who wander are lost."



Laz
 

He's asking about bit rate, not sampling rate.

On 9/3/15, Ann Parsons <akp@samobile.net> wrote:
Hi all,

Well, this question is questionable but if it's plain mono audio 22050
should be sufficient.

Ann P.

--
Ann K. Parsons
Portal Tutoring
EMAIL: akp@samobile.net
web site: http://www.portaltutoring.info
Skype: Putertutor

"All that is gold does not glitter,
Not all those who wander are lost."



--
Affordably priced Accessible Talking MP3 Players, Accessible phones,
Bluetooth devices, and accessories
http://www.talkingmp3players.com/
Email: laz@talkingmp3players.com
Phone: 727-498-0121
Skype: lazmesa
Personal Facebook: https://m.facebook.com/laz.mesa
Facebook: https://m.facebook.com/Talkingmp3players?_rdr


Walt Smith
 

But for overall quality and listenability, the two are directly related.

-----Original Message-----
From: Laz [mailto:laz@talkingmp3players.com]
Sent: Thursday, September 03, 2015 3:22 PM
To: TechTalk@groups.io
Subject: Re: [TechTalk] lowest bit rate for audio books?

He's asking about bit rate, not sampling rate.


john schwery <jschwery@...>
 

Thanks guys.



earlier, Kwork, wrote:

In my opinion, either 64kbps mono or 128 kbps stereo. Any lower than that,
and my ears can't handle it with my tinnitus. If music, then generally
higher than that.
Travis
----- Original Message -----
From: "john schwery" <jschwery@embarqmail.com>
To: <TechTalk@groups.io>
Sent: Thursday, September 03, 2015 9:54 AM
Subject: [TechTalk] lowest bit rate for audio books?


What is the lowest bit rate I can use for audio books without losing
much sound quality? For example, when I use Baliboka to take text
from an ebook.






Dave Mitchel <dbmitchel@...>
 

Don, I fully agree about the 32 bit rate. I use it exclusively.  If people do not like it when I send them books they can get the books elsewhere. I use only 1 earphone at a time anyway because many times I am doing something else while reading.
 
has anyone noticed the bit rate on NLS books?
Dave
 

Sent: Thursday, September 3, 2015 11:48 AM
Subject: Re: [TechTalk] lowest bit rate for audio books?
 
John, if you ask ten people, you will get ten different answers.  For voice quality, I am very happy with 32 K.  But some will scream abuse at you if you send them something that low.  In another message I posted about twenty minutes ago, I pointed out that by going to 32 K, I reduced the size of the Essential iPhone training folder from 1.2.1 gigs to 124 megs, and the sound of voice recordings is fine to my ear although many will disagree.
 
Don Roberts
 
 
Sent: Thursday, September 3, 2015 9:54 AM
Subject: [TechTalk] lowest bit rate for audio books?
 
What is the lowest bit rate I can use for audio books without losing
much sound quality?  For example, when I use Baliboka to take text
from an ebook.




john schwery <jschwery@...>
 

Gene, I looked in Baliboka and didn't see anything about sample rates in the audio files settings.



earlier, Gene, wrote:

If you are using a bit rate of 32kbps, you will get better results using 2250.  If you are using 64. you should probably leave the sample rate at the default which is something like 44100.  I don't recall the exact default number.  I'm not sure which sample rate might give better results if you use a bit rate of 48kbps.  And as I said, I'm recommending settings based on how I hear compressed audio.  You may want to check both the 2250 and the default 44100 bit rate at 32kbps and 48kbps.  you may want to compare at 64kbps as well but I think at that bit rate, you should the 44100 bit rate.
 
Gene

From: Ann Parsons
Sent: Thursday, September 03, 2015 1:53 PM
To: TechTalk@groups.io
Subject: Re: [TechTalk] lowest bit rate for audio books?

Hi all,

Well, this question is questionable but if it's plain mono audio 22050
should be sufficient.

Ann P.

--
Ann K. Parsons
Portal Tutoring
EMAIL:  akp@...
web site:  http://www.portaltutoring.info
Skype: Putertutor

"All that is gold does not glitter,
Not all those who wander are lost."


Carlos
 

I don't use Baliboka myself, but many tools which are not dedicated audio recorders or converters may simply not allow you to configure all audio properties.

----- Original Message -----
Sent: Friday, September 04, 2015 6:21 AM
Subject: Re: [TechTalk] lowest bit rate for audio books?

Gene, I looked in Baliboka and didn't see anything about sample rates in the audio files settings.



earlier, Gene, wrote:
If you are using a bit rate of 32kbps, you will get better results using 2250.  If you are using 64. you should probably leave the sample rate at the default which is something like 44100.  I don't recall the exact default number.  I'm not sure which sample rate might give better results if you use a bit rate of 48kbps.  And as I said, I'm recommending settings based on how I hear compressed audio.  You may want to check both the 2250 and the default 44100 bit rate at 32kbps and 48kbps.  you may want to compare at 64kbps as well but I think at that bit rate, you should the 44100 bit rate.
 
Gene

From: Ann Parsons
Sent: Thursday, September 03, 2015 1:53 PM
To: TechTalk@groups.io
Subject: Re: [TechTalk] lowest bit rate for audio books?

Hi all,

Well, this question is questionable but if it's plain mono audio 22050
should be sufficient.

Ann P.

--
Ann K. Parsons
Portal Tutoring
EMAIL:  akp@...
web site:  http://www.portaltutoring.info
Skype: Putertutor

"All that is gold does not glitter,
Not all those who wander are lost."


Gene
 

I haven't used that program.  Others may be able to discuss it.
 
Gene

Sent: Friday, September 04, 2015 5:21 AM
Subject: Re: [TechTalk] lowest bit rate for audio books?

Gene, I looked in Baliboka and didn't see anything about sample rates in the audio files settings.



earlier, Gene, wrote:
If you are using a bit rate of 32kbps, you will get better results using 2250.  If you are using 64. you should probably leave the sample rate at the default which is something like 44100.  I don't recall the exact default number.  I'm not sure which sample rate might give better results if you use a bit rate of 48kbps.  And as I said, I'm recommending settings based on how I hear compressed audio.  You may want to check both the 2250 and the default 44100 bit rate at 32kbps and 48kbps.  you may want to compare at 64kbps as well but I think at that bit rate, you should the 44100 bit rate.
 
Gene

From: Ann Parsons
Sent: Thursday, September 03, 2015 1:53 PM
To: TechTalk@groups.io
Subject: Re: [TechTalk] lowest bit rate for audio books?

Hi all,

Well, this question is questionable but if it's plain mono audio 22050
should be sufficient.

Ann P.

--
Ann K. Parsons
Portal Tutoring
EMAIL:  akp@...
web site:  http://www.portaltutoring.info
Skype: Putertutor

"All that is gold does not glitter,
Not all those who wander are lost."


Monica Jones
 

Carlos, I'm with you; I don't want it lower than 64. I want the reading to be clear, and if it's much lower than this, it isn't to me. If someone can hear it lower and think it sounds clear enough, then go for it.

-----Original Message-----
From: Carlos
Sent: Thursday, September 03, 2015 12:12 PM
To: TechTalk@groups.io
Subject: Re: [TechTalk] lowest bit rate for audio books?

This question usually causes a bit of controversy. In my opinion, about 64.
Although many will say that for spoken material it doesn't really matter.
----- Original Message -----
From: "john schwery" <jschwery@embarqmail.com>
To: <TechTalk@groups.io>
Sent: Thursday, September 03, 2015 12:54 PM
Subject: [TechTalk] lowest bit rate for audio books?


What is the lowest bit rate I can use for audio books without losing much sound quality? For example, when I use Baliboka to take text from an ebook.






Monni, the coffee gal
Twitter, @Monni52
Skype, Monnirose52
Facebook, Monica Rose Jones


Donald L. Roberts
 

I must respectfully disagree.  I realize that this is very subjective, but for spoken word files, 32 – 22 mono works great and doesn’t use a ton of space.  Many persons have data caps; and for example, putting those training files at 360 K was an extremely poor choice on someone’s part.
 
Don Roberts
 
 

Sent: Friday, September 4, 2015 2:16 PM
Subject: Re: [TechTalk] lowest bit rate for audio books?
 
Carlos, I'm with you; I don't want it lower than 64. I want the reading to
be clear, and if it's much lower than this, it isn't to me. If someone can
hear it lower and think it sounds clear enough, then go for it.


-----Original Message-----
From: Carlos
Sent: Thursday, September 03, 2015 12:12 PM
To: TechTalk@groups.io
Subject: Re: [TechTalk] lowest bit rate for audio books?

This question usually causes a bit of controversy.  In my opinion, about 64.
Although many will say that for spoken material it doesn't really matter.
----- Original Message -----
From: "john schwery" <jschwery@...>
To: <TechTalk@groups.io>
Sent: Thursday, September 03, 2015 12:54 PM
Subject: [TechTalk] lowest bit rate for audio books?


> What is the lowest bit rate I can use for audio books without losing much
> sound quality?  For example, when I use Baliboka to take text from an
> ebook.
>
>
>
>




Monni, the coffee gal
Twitter, @Monni52
Skype, Monnirose52
Facebook, Monica Rose Jones