[Live-devel] H264 + ulaw streaming with audio vibration

[Eric_Hsieh at alphanetworks.com]

Hi Ross,

Thanks for your quickly replay.

We have a rtsp server on embedded system, rtsp server will stream out H264+ulaw streaming.
Now, we face a problem. There is a vlc client to connect our rtsp server.
If the audio is
A. under 8K, 16bit, mono ulaw(encode from PCM), we set fDurationInMicroseconds to be 64000. Audio is good.
B. under 16K, 16bit, stereo ulaw(encode from PCM), we set fDurationInMicroseconds to be 16000. Audio is vibration.
https://dl.dropboxusercontent.com/u/38773854/vibrating_voice.mp4

For 16K, 16bit, stereo,
we try to record PCM file and play PCM on vlc, PCM is good.
we try to record PCM, encode ulaw to file and play ulaw file on audacity, ulaw are good.

Under this situation, do you have any suggestion? Thanks for your kindly sharing.

regards, eric, 12/17

On Dec 17, 2015, at 12:10, Ross Finlayson <finlayson at live555.com<mailto:finlayson at live555.com>> wrote:

Sorry, but I find your question incomprehensible.

Please try again - this time explaining clearly exactly how you are using the “LIVE555 Streaming Media” software (at both the server end, and/or client end, as appropriate), and what specific problem(s) you are encountering.

Ross Finlayson
Live Networks, Inc.
http://www.live555.com/


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