VoIP Mailing List Archives

[freeswitch at philstyl...]

Hi,

I've been using the record_session feature and wish to use PCMU or ul audio format, but when I try to play back the audio in either format, it sounds high-pitch and fast as if it is playing back at 2x speed. I looked at the waveform recorded in PCMU and ul versus what it looks like when I record as wav, and it seems like it is only recording every-other sample (which would explain the pitch and speed).

My vars.xml is set to PCMU as the global codec pref and the outbound codec pref.

I am recording in stereo (one channel per leg of the call), but I'm not messing with any other recording parameters.

Incidentally, the wav sounds just fine, but I'd prefer an 8-bit mulaw audio file, because I'm getting calls off a T1 (actually off of an AudioCodes Mediant 1000 that is converting the T1 to SIP for me), and I'd like to record precisely what is coming off the wire.

I'd be happy to send any configuration files, I'm just currently at a loss for how to proceed.

Thanks,

Drew Ozier

[freeswitch at philstyl...]

Hi,

I've been using the record_session feature and wish to use PCMU or ul audio format, but when I try to play back the audio in either format, it sounds high-pitch and fast as if it is playing back at 2x speed. I looked at the waveform recorded in PCMU and ul versus what it looks like when I record as wav, and it seems like it is only recording every-other sample (which would explain the pitch and speed).

My vars.xml is set to PCMU as the global codec pref and the outbound codec pref.

I am recording in stereo (one channel per leg of the call), but I'm not messing with any other recording parameters.

Incidentally, the wav sounds just fine, but I'd prefer an 8-bit mulaw audio file, because I'm getting calls off a T1 (actually off of an AudioCodes Mediant 1000 that is converting the T1 to SIP for me), and I'd like to record precisely what is coming off the wire.

I'd be happy to send any configuration files, I'm just currently at a loss for how to proceed.

Thanks,

Drew Ozier

[drew.ozier at gmail.com]

Hi,

I've been using the record_session feature and wish to use PCMU or ul audio format, but when I try to play back the audio in either format, it sounds high-pitch and fast as if it is playing back at 2x speed. I looked at the waveform recorded in PCMU and ul versus what it looks like when I record as wav, and it seems like it is only recording every-other sample (which would explain the pitch and speed).

My vars.xml is set to PCMU as the global codec pref and the outbound codec pref.

I am recording in stereo (one channel per leg of the call), but I'm not messing with any other recording parameters.

Incedentally, the wav sounds just fine, but I'd prefer an 8-bit mulaw audio file, because I'm getting calls off a T1 (actually off of an AudioCodes Mediant 1000 that is converting the T1 to SIP for me), and I'd like to record precicely what is coming off the wire.

I'd be happy to send any configuration files, I'm just currently at a loss for how to proceed.

Thanks,

Drew Ozier