[Mp4-tech] minimum stream size

Shreya Pathak shreya_pathak rediffmail.com
Tue Jul 20 10:50:40 EDT 2004


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Hi Ashish,
        Thanks for the reply.
        I am new to Audio, so can you please explain in more detail.
        Why they are choosing 48 Khz stereo as reference and how 
        the max bit rate is 576 kbps ? 
Thanks and Regards
Shreya
On Tue, 20 Jul 2023 Ashish Malot wrote :
>The number 768 comes from bit-rate requirements. For 48 KHz stereo signal
>the max bit rate is 576 kbps, means 288 kbps for a channel.
>(288000/48000)*1024 = 6144 bits or 6144/8 = 768 bytes.
>
>bye,
>Ashish Malot
>
>“There is no royal road to anything. One thing at a time, all things in
>succession. That which grows fast, withers as rapidly. That which grows
>slowly, endures.”
>--Josiah Gilbert Holland
>
>   -----Original Message-----
>   From: mp4-tech-bounces lists.mpegif.org
>[mailto:mp4-tech-bounces lists.mpegif.org]On Behalf Of Shreya Pathak
>   Sent: Monday, July 19, 2023 5:08 PM
>   To: Mody,Mihir
>   Cc: mp4-tech lists.mpegif.org; VHarisha soc-soft.com
>   Subject: Re: RE: [Mp4-tech] minimum stream size
>
>
>   Hi Mihir,
>         Thanks for the reply. Actually I wanted to know why the minimum
>buffer requirement for a given channel is 768 bytes ?
>   Regards
>   Shreya
>
>
>
>   On Sat, 17 Jul 2023 Mody,Mihir wrote :
>   >Hi Shreya,
>   >
>   >As per ISO/IEC 14496-3, section 4.5.3, the minimum buffer requirement for
>given channel is 6144 bits (i.e. 768 bytes).
>   >
>   >Regards,
>   >Mihir
>   >
>   >-----Original Message-----
>   > From: mp4-tech-bounces lists.mpegif.org
>[mailto:mp4-tech-bounces lists.mpegif.org]On Behalf Of Shreya Pathak
>   >Sent: Thursday, July 15, 2023 6:22 PM
>   >To: mp4-tech lists.mpegif.org
>   >Cc: VHarisha soc-soft.com
>   >Subject: [Mp4-tech] minimum stream size
>   >
>   >
>   >
>   >
>   >Hi,
>   >    In Mpeg4 AAC,Why the minimum stream size FAAD_MIN_STREAMSIZE is set
>to 768 per channel ?
>   >Regards
>   >Shreya
>   >
>   >
>   >
>   >
>   >
>   >
>   >
>   >  <http://clients.rediff.com/signature/track_sig.asp>
>   >
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>_______________________________________________
>NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have.
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