I want to capture a video on my beagle board Xm rev C (TI DM3730). So as per as the audio capturing is concerned, I am very much confused about the audio formats, like which format should I choose to get a better sound quality in the least possible memory requirement.
Since so many PCM formats such as S8, U8, S16_LE, U16_LE, A-law, u-law-, IMA_ADPCM, MPEG, GSM, etc are there so which format should I opt for.
Also
- What is difference between signed and unsigned PCM format, how does it can affect the sound quality.
- If I go for MPEG format, does it mean that audio compression would handled at my audio port level and my DSP processor would not come into picture.
- In reference to my above query i.e. 2, if audio compression is handled at audio port level, so at the time of audio/video sync up, how would be my processor be able to time sync both audio and video, since audio is not being compressed by the DSP.
- If I opt for A-law or u-law, what could be benefits/disadvantages of
using these formats. Would the audio sample be in compressed form in
this case, if yes, how would audio/video sync up will happen in this
case.
If possible kindly provide me a link where I can find differences between these various formats, pros and cons of each of them.
Thanks & Regards
Harman Kalra
_______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
